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3434i SF6 Leak Detector - LumaSense Technologies

1. Press SET UP S3 S1 S3 and the following text is displayed SELECT COMMUNI CATION SET UP BRANCH RS 232 C ADDRESSABLE CONNECTIONS If you are using the RS 232 interface go to section 10 3 1 RS 232 Interface A brief description of the communication parameters is given below A list of the parameters together with the values available and their factory default values are shown in Table 10 1 The parameters in this branch decide how the Monitor communicates via the RS232 interface SELECT BAUD RATE gives the rate at which data should be transmitted from the Monitor via its RS 232 interface SELECT NUMBER OF STOP BITS gives the number of stop bits which should be used when data is transmitted from the Monitor to other equipment SELECT NUMBER OF DATA BITS gives the number of data bits which should be used when data is transmitted between the Monitor and other equipment 3434i SF6 Leak Detector LumaSense Technologies A S Page 118 of 191 Chapter 10 BE6028 14 SELECT PARITY CHECK The user chooses whether or not transmitted data should be checked for transmission errors using the parity checking system SELECT HARDWIRE MODE The user chooses which communication line wire should be used to control data transmission between the Monitor and other equipment SELECT HANDSHAKE TYPE The user chooses which type of handshake should be used for transmission via the RS 232 interface Table
2. 5 Press to accept volume 6 Press SET UP to exit the set up function 5 4 3 Enabling Disabling Self Tests If you do not wish the Monitor to perform regular self tests including the hardware test on power up you can disable it 1 Press SET UP S3 S1 S1 S3 REGULAR SELF TESTS 2 Press 51 the Monitor no longer performs the hardware test as part of its self testing procedure during any kind of reset 3 Press SET UP to exit the set up function 5 5 Alarm Relay Two alarm relays are built into the alarm relay socket on the back panel of the Monitor The function of the pins in this female connector are shown in Fig 5 2 The two alarm relays can be connected to a variety of either audio for example a siren BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 67 of 191 Chapter 5 and or visual for example a flashing light alarm systems and they are activated whenever a pre defined concentration alarm level of one or more of the gases being measured is exceeded Alarm signals are given by opening and closing the relay contacts Both relays are closed when the Monitor is switched off and when the Monitor is switched on This means that there is a direct electrical connection between pins 1 amp 2 and pins 4 amp 5 at all times except when the Monitor measures a gas concentration which is greater than the corresponding alarm limit for the g
3. g Press to select displayed temperature The display screen then jumps to the head of the MEASUREMENT branch of the Set Up Tree and the following text is shown SELECT MEASUREMENT SET UP BRANCH MONITORING TASK ENVIRONMENT Fixed Time Option a Press 53 and the screen displays the following text CHAMBER FLUSHING TIME 8s PRESS ENTER TO CHANGE VALUE b Press c Use the direction keys to define the chamber flushing time Note the range of acceptable values for chamber flushing ranges from 2s to 60s increasing in 1s intervals d Press to select displayed flushing time and the following text is displayed TUBE FLUSHING e Press S3 to enable sample tube flushing The screen displays the following text BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 40 of 191 Chapter 4 4 3 4 BE6028 14 TUBE FLUSHING TIME 35 PRESS ENTER TO CHANGE VALUE f Press p g Use the direction keys to define the tube flushing time Note the range of acceptable values for tube flushing ranges from 3s to 120s increasing in 1s steps h Press p to select displayed flushing time The following text is displayed NORMALI ZATION TEMPERATURE 20 0 C PRESS ENTER TO CHANGE VALUE i Press SET UP Setting up a Monitoring Task The optical filter in the monitor has to be calibrated before it can be used to measure gas concentrations The user can only s
4. SAMPLING IS CONTINUOUS MONITORING PERIOD IS NOT PRE SET 3434i SF6 Leak Detector LumaSense Technologies A S Page 47 of 191 Chapter 4 COMPENSATION FOR WATER VAP INTERFERENCE MONITORING TASK STARTED 2011 01 16 09 50 MEASUREMENT CHAMBER TEMPERATURE 29 6 C SAMPLE I NTEGRATION TI ME W 5s A 5s B s C _ s D s Ens A Sulphur hexaflouride B Ce ae Dp ae Ee ae arora W WATER VAP A 7 42E 00 Bi ee Cs Peres ae D E W 8 13 00 The last display above shows the up dated overview of the gas concentrations measured during the most recent measurement cycle This display does not appear after the monitoring task has been stopped Data collected during a monitoring task is stored in the Display Memory of the Monitor and therefore before a new monitoring task is started all data stored in this memory is deleted Display Memory has finite size and therefore there is a limit to how much data can be stored in it Once this memory has been filled up all subsequent data collected during the task will start to overwrite the data already collected during the start of the monitoring task Only in this event will the date displayed after the text MONITORING TASK STARTED on the above screen be different from the earliest date on the display shown below which give the most up to date overview of the monitoring task DATA IN DISPLAY MEMORY RECORDED FROM 2014 01 16 09 50 TO 2011 01 16 10
5. Data integrity test This test checks the integrity of the data stored in the Monitor s Source Memory i e its EEPROM Electrically Erasable 3434i SF6 Leak Detector LumaSense Technologies A S Page 61 of 191 Chapter 5 BE6028 14 Programmable Read Only Memory and the integrity of the data stored in the Monitor s Working Memory RAM Hardware test This test checks that the electrical mechanical and electronic parts of the Monitor are functioning properly The following parts of the Monitor are checked the pump the valves in the pneumatic system the infra red light source the power supply the filter carousel the motor which drives the chopper wheel the external vibration level to make sure that it does not contribute to the signal measured in the analysis cell the analogue circuitry and the microphones to check that they are functioning properly If you do not wish the Monitor to perform the hardware test during a partial reset you can disable it see section 5 4 3 This also disables the regular self tests If any part of the Monitor is found to be functioning incorrectly a message will appear in the display to inform the user of the problem For example OPERATING ERROR PUMP TEST FAILED The user must acknowledge receipt of such a message by pressing INFO Operating errors and warning messages are listed in table form in Chapter 14 at the end of this manual If a fault is found in any o
6. 2 Use the Line Feed function on the printer if the paper is not ejected automatically BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 125 of 191 Chapter 11 Chapter 11 Maintenance of the 34341 July 2014 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 126 of 191 Chapter 11 The only regular maintenance required for the 3434i is Calibration approximately every 3 months see Chapter 12 Changing the fine air filter paper in the internal and external air filtration units see section 11 1 Cleaning of the filter in the ventilation unit see section 11 2 11 1 Changing the Fine Air filters The monitor is equipped with an internal filtration unit The internal unit is mounted on the air inlet on the back panel This is shown in Fig 11 1 Fig 11 1 The internal air filtration unit mounted on the back panel of the monitor The internal air filtration unit can be removed simply by unscrewing the unit by hand The unit is shown in Fig 11 2 Fig 11 2 The internal air filtration unit Inside the unit a fine 10um filter paper removes fine dust particles and other suspended matter from air samples before they reach the measurement chamber of the Monitor BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 127 of 191 Chapter 11 11 1 1 BE6028 14 Whenever the Monitor needs to be calibrated we recommend that the fine filter paper in the internal air
7. using wet zero gas If only ONE filter A B D E is installed in the carousel this display does not appear in the calibration set u PERFORM CROSS INTERFERENCE CALIBRATION NO YES using span gases of known concentration using span g PERFORM GAS SPAN CALIBRATION NO YES using span gas of known concentration GAS CONC PRESS ENTER TO CHANGE VALUE CALIBRATE WATER VAPOUR FILTER NO YES End of the set up section of the calibration task PERFORM PRACTICAL CALIBRATION TASK NO YES 3434i SF6 Leak Detector BE6028 14 CALIBRATE A WITH gas name appears here NO SINGLE POINT TWO POINT HIGH GAS CONC PRESS ENTER TO CHANGE VALUE This display ONLY appears if you have selected to perform zero point calibration of filters installed in positions A to E PERFORM WATER VAPOUR ZERO POINT CALIB NO YES PERFORM WATER VAPOUR SPAN CALIBRATION NO WATER VAPOUR CONC PRESS ENTER TO CHANGE VALUE using zero gas containing an accurately known concentration of water vapour 900167_le LumaSense Technologies A S Page 172 of 191 Chapter 12 12 9 4 12 10 BE6028 14 Performing a Span Calibration of the Water vapour Filter Section 12 4 1 describes a good method of producing water vapour of known concentration The directions for performing a span calibration of water vapour filter are similar to those for performing a humidity interference calibration of the other installed filters is as
8. 1 to accept the value The text which appears on the display during the next step is really self explanatory and it is therefore possible for you to follow why the BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 42 of 191 Chapter 4 4 3 5 4 3 6 BE6028 14 button pushes listed in the next step will set up the monitoring task which is described at the beginning of section 4 3 4 3 Press S3 S1 S3 STI _ S3 then press S1j until the text MEASURE WATER VAPOUR appears on the display 4 Press the S3 button to answer YES to measure water vapour Store Measurement History The following screen is displayed STORE MEASUREMENT HISTORY INTO YES a If you select to answer No then only the last measured values are stored in the display memory b If you select to answer Yes all measured values are stored in display memory 5 Press the S3 button to answer YES to store the measurement history Once this step is complete monitoring task number 1 has been set up and the display moves to the previous head of the Set Up Tree 6 Press SET UP to exit the Set Up mode Starting a Monitoring Task Note before a monitoring task can be started the Measurement Units Environment Parameters and Monitoring Task Settings must be defined see sections 4 3 2 4 3 3 and 4 3 4 This section
9. 3 Calibration this block contains the optical filter factors calibration factors and all other information related to the calibration of the optical filters installed in the Monitor Printer Cables To connect the cables 1 Ensure that both the Monitor and the printer are switched off at the mains Failure to do so may result in your equipment being damaged 2 Locate the desired port at the back of the monitor The ports are labelled RS 232 3 Push the cable connector on to the correct socket and secure it firmly using the securing screws 3434i SF6 Leak Detector LumaSense Technologies A S Page 117 of 191 Chapter 10 10 3 10 3 1 BE6028 14 4 Locate the input port on the printer 5 Push the connector at the other end of the cable on to this socket and secure it firmly using the securing screws The instruments can be turned on at the mains now Setting up Communication Parameters WARNING You must perform a PARTIAL RESET of the Monitor press the RESET and S1j buttons if the active value of any parameter in this branch of the Set Up Tree is changed If the Monitor is not partially reset then the Monitor will not up date the communication parameter data which was used last time data was transmitted via either of its interfaces By performing a partial reset you ensure that the Monitor has the parameters necessary to enable it to transmit data to the attached printer
10. CALIBRATE WATER VAPOUR FILTER NO YES PERFORM WATER VAPOUR ZERO POINT CALIB NO YES PERFORM WATER VAPOUR SPAN CALIBRATION NO WATER VAPOUR CONC End of the set up section of the calibration task PRESS ENTER TO CHANGE VALUE using zero gas containing an accurately known concentration PERFORM PRACTICAL CALIBRATION TASK x of water vapour NO YES 900165_le BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 174 of 191 Chapter 12 12 11 BE6028 14 1 Press Measure S3 3 Sl then the following text will be displayed PERFORM ZERO POINT CALIBRATION NO YES 2 Follow the set up of a combined zero point and humidity interference calibration by following the black arrows in the schematic diagram shown in Fig 12 18 The following text will appear ZERO POINT CALIB CONNECT CLEAN DRY AIR AND PRESS ENTER WHEN READY 3 Refer to section 12 6 2 for the practical details of a zero point calibration task When the zero point calibration task is complete the following text appears on the screen HUM INTERFERENCE CONNECT CLEAN DRY AIR AND PRESS ENTER WHEN READY 4 Refer to Section 12 7 2 for the practical details of a humidity interference calibration task Setting up any Combined Calibration Stand alone Use Although we have separated the various calibration tasks and described how to set them up and perform them alone it
11. E ae D _ E Water Vapour 4 556E 00 Tdev Warning and Errors 2 6 Setting up user Levels 2 6 1 BE6028 14 Press the function push button on the front of the Monitor This enables setting up 3 different user levels Level 1 Level 2 and Level 3 These user levels are password protected Level 1 is the Operator level which enables start stop and reading of measurement results Partial Reset is possible Level 2 is the Expert level which in addition to Level 1 access enables set up of parameters Full Reset is possible Level 3 is the Super User level which allows all possible operations including calibration Default settings for User Level and Password Before dispatch from the factory the User Level and the Password are set to the following default setting User Level 3 And the default setting for the Password is Password 5 times 3434i SF6 Leak Detector LumaSense Technologies A S Page 23 of 191 Chapter 2 2 6 2 2 6 3 BE6028 14 These settings are to be used to change user level or password the first time Changing the Password In order to change the Password Press the function push button on the front of the Monitor The following text is displayed CURRENT USER LEVEL IS X CHANGE USER LEVEL CHANGE PASSWORD Press S3 CHANGE PASSWORD The following text appears ENTER PASSWORD PRESS ENTER TO CHANGE VALUE 1 Press to
12. A 5s B s C s D s E s A Sulphur hexafluoride B _________ Crewe eee D E W WATER VAP DATA IN DISPLAY MEMORY RECORDED FROM 2014 01 16 09 50 TO 2014 01 16 10 04 Note that the screen showing the overview of gas concentrations measured during any particular measurement cycle is no longer shown when the monitoring task has been stopped 2 Pressu This causes the following text to appear on the screen FILTER A USED TO MEASURE Sulphur hexafluoride 3 Press q to scroll through the following data displays GAS A MAX 14 5E 00 8 03 00 ALARM 1 MIN 7 42E 00 2 36E 00 BE6028 14 34341 SF6 Leak Detector sid LumaSense Technologies A S Page 53 of 191 Chapter 4 A Sulphur hexafluoride 972 06 mBar 2014 01 16 09 50 32 7 42 mg m3 A Sulphur hexafluoride 972 06 mBar 2014 01 16 09 51 33 7 43 mg m3 Press u so you can scroll through the list showing water vapour s results If you do not wish to view the results anymore press this acts as a go to head function 4 3 10 Changing Gas concentration Units after a Monitoring Task The unit mg m was chosen for gas concentrations in the monitoring task which was set up in section 4 3 4 As long as mg m is the active concentration unit that is the unit selected while operating in Set Up mode this is the unit which will be used to express gas concentrations on the display screens of the PC and the Mo
13. GAS N and or Air Pressure SELECT TEXT LINE TERMINATOR CR LF CR LF CR LF If one chooses to PRINT EACH GAS then all gases which have been measured will be printed out If one does not choose to PRINT EACH GAS then the user is given the chance to choose which of the gases A and water W should be printed out PRINT GAS A and SO on BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 123 of 191 Chapter 10 SELECT TEXT LINE TERMINATOR The user chooses which character the Monitor should use as end of text line when data is transmitted from the Monitor 10 5 Data Logging Function Setting up the Monitor to Print a Data Log If the Monitor is connected up to a printer and it is set up to transmit data to the printer this function enables measurement data to be printed out automatically as soon as it becomes available during a measurement or calibration The procedure is as follows 1 Press the following sequence SET UP Is3 S1 sil and the following text is displayed SELECT GENERAL SET UP BRANCH CLOCK SOUND TESTS 2 Press 3 q S3 SET UP This activates the data logging function 10 6 Error Logging Function Setting up the Monitor to Print an Error Log If the Monitor is connected up to a printer and it is set up to transmit data to the printer this function enables any warning or error messages that are displayed to be recorded in the printed
14. Gas supply tubing cylinder Attachment point no 3 Monitor 893264_1e Attaching a gas flow meter serves two vital functions see Fig 12 5 Fig 12 5 Schematic diagram of a flow meter gt gt To atmosphere to flow meter Y piece en from gas cylinder N To the monitor It allows you to have a visually check that there is a net flow of gas out of the Teflon tube attached to it during the whole calibration procedure The flow ball can be seen to be bouncing on the upward flow of air out of the meter If the pressure of the gas from the cylinder is too low at any time then the flow ball will just remain seated at the bottom of its 893266_1e BE6028 14 3434iSF6 Leak Detector Ss LumaSense Technologies A S Page 145 of 191 Chapter 12 12 4 1 BE6028 14 tube This condition must be avoided because atmospheric air will be drawn into the Teflon tube system via the flow meter and cause dilution of the calibration gas This will affect the accuracy of your calibration It functions as an escape valve When the pressure of the gas in the tubing becomes greater than atmospheric pressure gas flows out to the atmosphere via the flow meter This ensures that the gas entering the analysis cell is as close to atmospheric pressure as possible and this prevents damage to the very sensitive microphones in the analysis cell WARNING The analysis cell of the monitor is equipped with sensitive microphones
15. NO YES 2 Follow the set up of a zero point calibration of the water vapour filter by following the black arrows in the schematic diagram shown in Fig 12 16 The following text will appear ZERO POI NT CALIB CONNECT CLEAN WET AIR AND PRESS ENTER WHEN READY BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 168 of 191 Chapter 12 Fig 12 16 Schematic diagram showing how to set up a zero point calibration task for the water vapour filter follow the arrows PERFORM ZERO POINT CALIBRATION NO YES using dry zero gas PERFORM HUM INTERFERENCE CALIBRATION NO YES using wet zero gas If only ONE filter A B D E is installed in the carousel this display does not appear in the calibration set up PERFORM CROSS INTERFERENCE CALIBRATION NO YES using span gases of known concentration PERFORM GAS SPAN CALIBRATION NO YES CALIBRATE A WITH gas name appears here NO SINGLE POINT TWO POINT using span gas of known concentration GAS CONC PRESS ENTER TO CHANGE VALUE HIGH GAS CONC PRESS ENTER TO CHANGE VALUE This display ONLY appears if you have selected to perform zero point calibration of filters installed in positions A to E CALIBRATE WATER VAPOUR FILTER NO YES PERFORM WATER VAPOUR ZERO POINT CALIB NO YES PERFORM WATER VAPOUR SPAN CALIBRATION NO WATER VAPOUR CONC PRESS ENTER TO CHANGE VALUE End of the set up section of the calibration task using zer
16. Slow blow T fuse with a rating of 2 5 A 250 VAC 5x20 mm UL approved LumaSense order number VF0102A BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 16 of 191 Chapter 2 8 Install the fuse holder and re assemble the 3434i again The figure below shows the inside of the top cover of the 3434i Note that the front side of the cover has square flanges Place the top cover back in its correct position on top of the 3434i and screw in the all screws 2 3 Setting the USB Communication Parameters The LumaSoft Gas 7810 application with USB communication is able to communicate with the 3434i gas monitor through a USB cable BZ7002 and BZ7003 applications with USB communication are able to communicate with the 3434i gas monitor through a USB cable No setup on the 3434i gas monitor is necessary in order to be able to communicate with the 3434i gas monitor through an USB connection BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 17 of 191 Chapter 2 2 4 Setting the RS 232 Communication Parameters 2 4 1 2 4 2 BE6028 14 Default RS 232 Communication Parameters The Default RS 232 Communication parameters are shown in the table below Baud rate 9600 Stop bits 1 Data bits 7 Parity Even Hardwire mode Leased line Handshake type Hardwire Text Line CR LF Terminator Performing a full reset will set all parameters to the default settings Checking
17. ensure that the wet zero gas is not contaminated by atmospheric air The following text appears on the screen RESULTS NOT YET AVAI LABLE PLEASE WAIT The Monitor draws in the clean wet air and measures the signal in the cell with the water vapour filter as well as with all the other installed filters Once the first measurement result is available the screen text illustrated above is replaced by a screen displaying signal measured using the water vapour filter for example the following W p 340 V o V 1 39 3 C PRESS ENTER WHEN RESULTS ARE STABLE As soon as measurement results are available they do not only appear on the display but are automatically printed out on the printer if the monitor is set up to print a data log Remember to turn off the data log when the calibration is complete Each time a sample of gas is drawn into the analysis cell the signal is measured using all the installed optical filters and the water vapour filter W but due to lack of space on the display the Monitor first only displays the signal measured using the water vapour filter The data log print out however shows the signal measured using all installed filters as well as the water vapour filter A maximum of 6 measurements are stored in the Monitor during any calibration The number n indicates how many measurements are stored When 7 measurements have been performed the number n will show the number 6 because the ver
18. see section 10 5 Remember to turn off the data log when the calibration is complete Fig 12 11 Example of data displayed during a calibration the text below the display describes the displayed data W f 1 This is the This is the standard temperature in deviation of the analysis n measurements cell during the measurement This is position of the optical filter whose results are displayed This is the number of measurements stored by the monitor This is the average of the last n measurements made during this calibration Each time a sample of gas is drawn into the analysis cell the signal is measured using all the installed optical filters and the water vapour filter W but due to lack of space on the display the Monitor only displays the signal measured using the water vapour filter You cannot scroll through the measurements The data log print out however shows the signal measured using all installed filters as well as the water vapour filter A maximum of 6 measurements are stored in the Monitor during any calibration The number n indicates how many measurements are stored When 7 measurements have been performed the number n will show the number 6 because the very first measurement is overwritten by the 7 measurement so that only 6 measurements are still stored When 8 measurements 3434i SF6 Leak Detector LumaSense Technologies A S Page 154 of 191 Chapter 12 12 7 BE6028 14 hav
19. system tubes and or analysis cell is too high The Monitor has measured a concentration of gas greater than the alarm limit concentration entered The Monitor cannot determine the position of its filter carousel Air Filter DS0759 blocked The motor that drives the filter carousel is not working The optical detector that checks the movement of the carousel is not working The filter carousel has not been properly mounted BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 187 of 191 Chapter 14 CLOCK SET TO DEFAULT ERROR DETECTED IN CLOCK SETTINGS The Monitor s internal clock was found to be incorrectly set so these values have been set to their default values A new battery has been installed FACTORS SET TO DEFAULT ERROR DETECTED IN CALIBRATION FACTORS An error has been found in the data stored in the Calibration Factor part of the Monitor s memory so these factors have been set to their default values 1 A defective back up battery 2 A defective Working Memory RAM or Source Memory EEPROM 3 A Software fault MEMORY SET TO DEFAULT ERROR DETECTED IN BACKGROUND MEMORY MEMORY SET TO DEFAULT ERROR DETECTED IN DISPLAY MEMORY An error has been detected in the Monitor s Background Memory so the Monitor automatically deletes all data stored in An error has been detected in the Monitor s Display Memory so the Monitor automatically delet
20. 08 57 TO 2011 06 10 09 18 Identification of monitored gases MATERNA ROTT VEA URED Statistical analysis of WATER MAX 12 0E 00 p 8 15E 00 measurement results for ALARM MIN 11 7E 00 o 79 5E 03 each individual gas List of measurement results We WESTER VARGUR 4013 0mB See OmBar for each individual gas 2011 06 10 08 57 35 1 11 9Tdew W WATER VAPOUR 1013 0mBar 2011 06 10 08 58 11 2 11 9Tdew Overview of monitoring task MONITORING TASK STARTED 2011 06 10 08 57 EB Length of monitoring task MEASUREMENT CHAMBER TEMPERATURE 38 6 C SAMPLE INTEGRATION TIME A 5s B Cc W WATER VAP Y DATA IN DISPLAY MEMORY RECORDED FROM 2011 06 10 08 57 TO 2011 06 10 09 18 891815_1e BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 93 of 191 Chapter 8 8 1 1 8 1 2 BE6028 14 u amp t Using these push buttons users can scroll horizontally through any vertical level of data For example if the statistical analysis of the measurement results for water vapour are displayed on the screen then by using u you can read the statistical analysis of the measurement results for gas A W and then go back to the original display see Fig 8 1 EVENT This push button can be used pressed to mark the measurement being performed at the time at which a special event occurred during a monitoring task Any such measurement will appear on the display with an asterisk alongside it By pressing INFO
21. 1 3434i SF6 Leak Detector LumaSense Technologies A S Page 101 of 191 Chapter 9 Block 1 contains calibration factors and 3 optical filter parameters Block 2 contains 3 of the 6 set up parameters found under the Filters branch of the set up tree Block 3 contains all other parameters in the Set Up Tree Block 1 Calibration Factors and 3 Optical filter Parameters BE6028 14 There are six different data files in this block Each data file is denoted by a letter which indicates the position a particular optical filter occupies in the Monitor s carousel Each file A to E is divided into five sections called Filter Banks which are numbered from 1 to 5 The water vapour filter is only capable of measuring water vapour and therefore its data file W is not divided into different filter banks Each Filter Bank contains the following data 1 The name of the gas used during span calibration of the filter 2 The molecular weight of the gas used during span calibration 3 The alarm limits for the gas High Alarm Limit 1 High Alarm Limit 2 4 A Concentration offset factor obtained during zero point calibration of the filter 5 A Humidity gain factor obtained during an humidity interference calibration of the filter 6 A Conversion factor obtained during the span calibration of the filter with the gas named in point 1 above 7 Cross interference calibration factors obtained dur
22. 10 1 The available choices and the default values for each RS 232 communication parameter Display Text Acceptable Default Values Value SELECT BAUD RATE 300 600 1200 9600 2400 4800 9600 SELECT NUMBER OF STOP BITS 1 BIT 2 BITS 1 BIT SELECT NUMBER OF DATA BITS 7 BITS 8 BITS 7 BITS SELECT PARITY CHECK NONE EVEN EVEN ODD SELECT HARDWIRE MODE Three wire Leased line Switched line Leased line SELECT HANDSHAKE TYPE None Hard wired X ON X OFF Hard wired REMEMBER to partially reset your Monitor if any of the above parameters are changed See the WARNING at the beginning of section 10 3 From the top of the Communication branch of the Setup Tree SELECT COMMUNICATION SET UP BRANCH RS 232 C ADDRESSABLE CONNECTIONS 1 Press S1 RS 232 C 2 Use the direction and select push buttons to select the correct values for the parameters If you are in doubt about any of the settings refer to your printer manual 3434i SF6 Leak Detector LumaSense Technologies A S Page 119 of 191 Chapter 10 10 3 2 BE6028 14 3 When you have been through all the parameters the monitor returns to the top of the Communication branch of the Set Up Tree 4 Press 53 s1 and then SET UP This selects the RS 232 port as the communication port for the printer 5 Press RESET and S1 to partially reset your Monitor Ethernet I nterface From the top of the Communication branch of the
23. 12 1 Press SET UP 53 53 The following text appears on the screen display CHECK AND OR CHANGE SET UP FOR FILTER A NO YES 2 Press S3 and the following text appears on the screen display SELECT UA NUMBER FOR FILTER A 0988 PRESS ENTER TO CHANGE VALUE The UA number of the filter installed in position A should have already been checked see section 12 3 2 WARNING If this number is changed all calibration data for this filter in all 5 filter banks will be deleted i e lost and the filter will have to be fully calibrated again before it can be used If the incorrect filter is selected press and use p and q to scroll through the UA numbers until the correct UA number is displayed The procedure divides here PC users go to step 3 and Stand alone users go to step 4 3 Only the Filter UA number need to be checked changed using the monitor s push buttons All the other parameters are set when setting up the calibration using the Calibration program Then exit the Calibration Set up by pressing SET UP 4 Press The following text appears on the screen FILTER BANK NUMBER 1 PRESS ENTER TO CHANGE VALUE 5 Press and use p and q to display the number of the filter bank 1 5 where you wish the Monitor to store the calibration factors calculated during the span calibration of this filter using this particular gas
24. 2 4 1 3 BE6028 14 cycle to another due to the cleanliness of the filters and the degree of fluctuation in the concentration of the various gases Table 4 1 Approximate measurement times Monitor Setup Volume of Air Response Times S I T Normal 5s One gas 27s One gas water 40s SIT Low Noise 20s 140 cm sample One gas water 70s Flushing Auto tube 1m S I T Fast 1s One gas 13s Flushing 20cm sample Chamber 4s Tube One gas water OFF 22s Monitoring Task A monitoring task consists of a series of similar measurement cycles These cycles can either be repeated at regular intervals or be continuous Sampling I nterval The sampling interval is a measure of the time between the start of one measurement cycle and the start of the following measurement cycle When the Monitor is not sampling continuously the sampling interval has to be defined by the user and is a fixed period of time see Fig 4 1 3434i SF6 Leak Detector LumaSense Technologies A S Page 32 of 191 Chapter 4 4 1 4 4 1 5 BE6028 14 Fig 4 1 An illustration of the fixed sampling intervals of the monitor when it is not sampling continuously Sampling Interval a constant Ts Start 1 Start 2 Start 3 Start 4 Start 5 Measurement Cycle Finish 1 Finish 2 Finish 3 Finish 4 Continuous Sampling The Monitor is said to be sampling continuously when
25. 6 Press The following text appears on the screen GAS AIS _ u PRESS ENTER TO CHANGE VALUE BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 142 of 191 Chapter 12 7 Press and use the direction push buttons to enter the desired name 8 Press to accept the name you have entered on the display screen The following text then appears MOLECULAR WEIGHT OF GAS A 1 000 PRESS ENTER TO CHANGE VALUE 9 Press and use the direction push buttons to enter the molecular weight of the gas to be measured by filter A 10 Press p to accept the molecular weight you have entered on the display screen The following text appears on the screen FILTER A SAMPLE I NTEGRATION TIME 5s PRESS ENTER TO CHANGE VALUE 11 Press and use p and q to display the desired Sample Integration Time There are seven to choose from 0 5s 1s 2s 5s 10s 20s and 50s 12 Press to accept the selected value The following text appears on the screen GAS A HIGH ALARM LIMIT 1 mg m PRESS ENTER TO CHANGE VALUE 13 Press and use the direction push buttons to enter the desired alarm level 14 Press to accept the entered value Following screen is displayed GAS A HIGH ALARMLIMIT2 _ ____ __ mg m PRESS ENTER TO CHANGE VALUE 15 Repeat step 13 and 14 to enter the desired alar
26. FROM 2014 01 16 09 50 TO 2014 01 16 10 04 If the Monitor has just been fully reset then the display will just show the current time and report that the monitor is ready for use The Set up parameters describing a monitoring task and the measurement data collected during the task are stored as a list in the Display Memory You can scroll through the set up parameters as well as the data collected during the task by using the direction push buttons q to scroll vertically downwards and p to scroll vertically upwards through the list Fig 8 1 illustrates how the data is organised Identification of Measurements This screen provides the date and time of the first and last measurement results which are stored in Display Memory Identification of Each Monitored Gas This display identifies the gases monitored during the task By using the u push button one can find the names of all the gases which were monitored during the displayed task Statistical Analysis of Measurement Results for Each Gas Using the individual measured gas concentration stored in Display Memory when Store Measurement History is selected a statistical analysis is performed which provides a summary of the stored measurement results The MAX maximum MIN minimum gas concentrations are displayed and the u Mean or Linear Average and o Standard Deviation values are calculated and displayed A description of these statistical terms can be fou
27. If you make a mistake in entering the correct date just press S1 and start again 8 Press to accept the time When Step 8 has been completed the display then moves to the previous head of the set up tree 9 Press p three times The screen display shows the following text SELECT SET UP BRANCH MEASUREMENT FORMAT CONFI GURATION 10 Press SET UP to exit the set up function Adjusting the Sound Level During certain operations or for example when an incorrect push button is pressed the Monitor emits a beep You choose the volume of the Monitor s beep The volume of the beep is expressed on a scale from 0 no beep to 3 loudest beep Table 5 3 provides details of the available choices and the default value of this parameter Table 5 3 The available choices and the default value of the Monitor s beep Display Text Available Choices Default Value ENTER SOUND VOLUME 0 O 1 2 3 1 To set the volume 3434i SF6 Leak Detector LumaSense Technologies A S Page 66 of 191 Chapter 5 1 Press SET UP 2 Press 3 S1 S1 S2 The following screen picture appears SOUND VOLUME 1 PRESS ENTER TO CHANGE VALUE 3 To change the volume press p 4 Use the direction push buttons to enter the correct volume If you make a mistake press S1 to revert back to the original volume
28. Leak Detector LumaSense Technologies A S Page 130 of 191 Chapter 11 Fig 11 7 Refitting the retaining disc 7 11 1 2 Changing the Filter paper in the External Air filtration Unit While you do this we recommend that you wear clean rubber gloves Tools and equipment required Acetone analytically pure Spare fine filter paper DS 0759 Tweezers with Teflon coating Cotton buds Clean rubber gloves To change the filter paper Switch off the Monitor Put a rubber glove on the hand which is to hold the parts of the unit Pull the external fine air filtration unit off the end of the Teflon sampling tube Hold the stub end of the external air filter unit between your thumb and fingers and unscrew the coarse air filter from the end of the unit Refer to Fig 11 3 Remove the used old filter paper and the retaining disc from the unit using the tweezers Refer to Fig 11 8 Fig 11 8 The parts of the external air filtration unit UD 5023 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 131 of 191 Chapter 11 11 2 BE6028 14 Moisten a cotton bud with pure acetone and use it to clean the surfaces of the unit the retaining disc and the coarse air filter Refer to Fig 11 8 Place the stub end of the unit downwards on a clean dry surface the coarse air filter with its screw end downwards on a clean dry surface and rest the retaining disc against it Caution Make sure that no cotton fibres remai
29. Setup Tree SELECT COMMUNICATION SET UP BRANCH RS 232 C ADDRESSABLE CONNECTIONS 1 Press 52 ADDRESSABLE 2 Please refer to section 2 5 how to setup the Ethernet parameters 3 When you have been through all the Ethernet parameters press and then 53 S1 S3 3 53 and finally SET UP This selects the Ethernet port as the communication port for the printer Press RESET and S1 to partially reset your Monitor On the remote PC you can now prepare an Ethernet terminal program like HyperTerminal to be able to receive the printed output from the gas monitor HyperTerminal is a terminal program able to receive Ethernet communication send from the gas monitor 3434i SF6 Leak Detector LumaSense Technologies A S Page 120 of 191 Chapter 10 1 After starting the HyperTerminal program please select a name for the connection Connection Description ETE ieoa Enter a name and choose an icon for the connection Name Ethemet 3602 gt Icon g Lok f ca 2 Press OK to continue Location Information x Before you can make any phone or modem connections Windows needs the following information about your current location What country region are you in now What area code or city code are you in now If you need to specify a carrier code what is it If you dial a number to access an outside line what is it The phone system at th
30. This is done by operating the Monitor in Memory mode and selecting to RECALL data see section 9 3 2 When data is recalled to Display Memory it is not transferred from Background Memory to Display Memory it is only copied into Display Memory so there is no risk of losing it In Display Memory the user can scroll through the data Data stored in Background Memory can be deleted by operating the Monitor in Memory mode and selecting to DELETE data see section 9 3 3 Effect of a Calibration Task on the Monitor s Memory Before calibration of the optical filters in the Monitor the UA number of the installed filter is entered into the active set up of the Monitor This enables the Monitor to find a set of numerical parameters which describe the optical filter this information is found in the Read Only Memory of the Monitor These numerical parameters are called Optical Filter Factors During a CALIBRATION TASK the Monitor uses the Optical Filter Factors to calculate the calibration factors for the installed optical filter As explained in section 9 1 2 by entering a Filter Bank No in the active set up before calibration of the particular filter with the particular gas each filter can be calibrated to measure up to five different gases and the filter bank number tells the Monitor exactly 3434i SF6 Leak Detector LumaSense Technologies A S Page 106 of 191 Chapter 9 where in the Source Memory to store the calibrati
31. and therefore NO direct connection between the Monitor s air inlet and the pressure valve on a gas cylinder is allowed Under NO circumstances should the pressure of the air in the analysis cell be allowed to exceed 0 1 bar above the ambient pressure 1 Attach the Teflon tubing to the Air Inlet Filter at the back of the monitor This is described in detail in section 4 2 a Connect the free end of the length of tubing attached to the air inlet to one of the branches of the Y piece see attachment point no 1 in Fig 12 4 b Cut off another 1m length of Teflon tubing and connect one of its ends to attachment point no 2 of the Y piece see Fig 12 4 and its other end to a flow meter 3 Connect a 1m length of tubing to attachment point no 3 of the Y piece see Fig 12 4 Producing a Supply of Clean Wet Air When humidity interference calibrations are performed clean wet air is required This can be produced in the following manner We suggest that you bubble zero gas e g pure nitrogen through a thermostatically controlled water bath to produce a supply of clean wet air to the Monitor during humidity interference calibration of the filters see Fig 12 6 Notice that the thermostatically controlled water bath is linked up to an extra empty flask This is to prevent a situation where the level of water in the controlled water bath rises and covers the outlet tube A and draws water via the Y p
32. are interested in finding out whether the 8 hour Time Weighted Average concentration of gases are in compliance with National Occupational Exposure Limits or alternatively the averaging period could be 15 minute Time Weighted Average if you are interested in finding out whether the Short Term Exposure Limit STEL of the gases complies with National Occupational Exposure Limits 3 Press SET UP and then AVERAGE When steps 1 to 3 are complete scroll through the measurement results displayed on the screen Display Memory Notice that all measurements have been averaged over the chosen averaging period A detailed example is given in section 7 2 How Time weighted Averages are Calculated In order to explain how the 3434i averages gas measurements over a fixed user defined averaging period let us suppose that a particular gas has been monitored continuously and that its measured concentration was C during the first sampling interval T min C2 during the second sampling interval T2 min Cn during the n sampling interval Ta min see Fig 8 2 Suppose that you wished the 3434i to calculate the Time weighted average TWA over a period of time T min Fig 8 2 Illustration of a monitoring task Sampling Interval a constant Ts Start 1 Start 2 Start 4 Start 5 Start 3 Measurement Cycle Finish 1 Finish 2 Finish 3 Finish 4 The Time weighted average of these measurements over the avera
33. away to the open air or to an extraction and or filtration unit 3434i SF6 Leak Detector LumaSense Technologies A S Page 5 of 191 Safety Considerations Environmental Conditions for transport and storage Temperature 25 to 552C Relative Humidity 0 to 80 RH Atmospheric Pressure 800 to 1060 hPa Warnings BE6028 14 Avoid water condensation in the instrument Switch off all equipment before connecting or disconnecting their digital interface Failure to do so could damage the equipment Whenever it is likely that correct function or operating safety of the apparatus has been impaired the apparatus must be made inoperative and secured against unintended operation Any adjustment maintenance and repair of the open apparatus under voltage must be avoided as far as possible and if unavoidable must be carried out only by trained personnel If a fault is reported by the monitor that indicates correct function of the instrument may be impaired consult your local LumaSense Technologies representative Under no circumstances should repair be attempted by persons not qualified in service of electronic instrumentation 3434i SF6 Leak Detector LumaSense Technologies A S Page 6 of 191 Safety Considerations Applying Power BE6028 14 Before using the 3434i check that the available mains voltage match the specified voltage and frequency for the instrument SAFETY SYMBOLS A The apparatus will be marked with this sy
34. being measured as well as the frequency with which measurements are performed that is the sampling interval Section 8 3 provides information about how you can roughly calculate the length of time the data from a particular monitoring task can be stored in the Display Memory It is important to realise that once the Display Memory has been filled up by the results of a particular monitoring task the results of any further measurements in the same monitoring task will start to overwrite the data already stored in the memory 8 Use the select push buttons to define if you want to compensate for water vapour interference 9 Use the select push buttons to select the filters gases you want to measure 10 Use the select push buttons to define if you want to measure water vapour 11 Use the select push button to define if you want to store the measurement history When step 11 is completed the display returns to the top of the branch SELECT MEASUREMENT SET UP BRANCH MONITORING TASK ENVIRONMENT BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 83 of 191 Chapter 7 Environment branch 12 13 14 15 16 17 Press 53 to enter the Environment branch Use the select push buttons to select the desired flushing mode If you select Auto go to step 16 If you select Fixed Time go to step 14 Use the direction push buttons to define the Chamber Flushing Time Use the select push b
35. can find out what the asterisk indicates by pressing the INFO button The following display appears for a short period of time GAS X COMMON MARK PEOW GAS MARK BFA EVENT NO xxxx TIME hh mm BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 97 of 191 Chapter 8 EVENT NO will appear on the screen only if the Event Mark button was used during the monitoring task In this case the letter E will also appear as a Common Mark The symbols which can appear after the text COMMON MARK and GAS MARK are listed below with a short explanation of what they mean Common Marks p 1 The Monitor stopped measuring due to a power failure but has automatically re started the monitoring task again after regaining power 2 The Monitor has been reset either because of a detected fault or because RESET was pressed E The measurement has been marked by the User o This symbol indicates that an operational error was detected during this measurement The accuracy of such a measurement cannot always be guaranteed W This symbol indicates that a warning was detected during this measurement The accuracy of such a measurement cannot always be guaranteed Gas Marks 8 2 3 BE6028 14 B The Monitor was incapable of calculating this gas concentration pP After this measurement the filter carousel was found to be out of alignment If the carousel was
36. change value The following text appears ENTER PASSWORD CANCEL DEFAULT 2 Enter the old Password using the A and keys 3 Press The following text appears PASSWORD IS PRESS ENTER TO CHANGE VALUE 4 Type in the new Password using the A and Y keys 5 Press Changing the User Level In order to change the User Level Press the function push button on the front of the Monitor 3434i SF6 Leak Detector LumaSense Technologies A S Page 24 of 191 Chapter 2 The following text is displayed CURRENT USER LEVEL IS X CHANGE USER LEVEL CHANGE PASSWORD 1 Press S1 CHANGE USER LEVEL The following text appears ENTER PASSWORD PRESS ENTER TO CHANGE VALUE 2 Press 3 Enter the current Password using the A and Y keys 4 Press The following text appears CURRENT USER LEVEL IS X PRESS ENTER TO CHANGE VALUE Press Ol Oo Use the A and VW keys to change the User level N Press Press the Lock function push button to exit 2 7 Restoring of calibration data BE6028 14 If you have ordered a calibration from our calibration laboratory you will receive a CD with a backup of the calibration data It is very important that you store these data in your Calibration Software BZ7002 Please store the data before using the Gas Monitor Please refer to the User Manual BE6034 re
37. described in section 12 7 2 In both calibration tasks the signal in the cell is measured when a supply of zero gas containing a constant concentration of water vapour is attached to the Monitor There are however two differences 1 During a humidity interference calibration the signal is measured using the installed filter including the water vapour filter whereas during the span calibration of the water vapour filter the Signal is only measured with the water vapour filter 2 During a humidity interference calibration it is not necessary to know the concentration of water vapour supplied to the cell as it is only necessary to measure the size of each signal with filter A relative to the size of the signal measured with the water vapour filter However during a span calibration of the water vapour filter it is necessary to know the exact concentration of water vapour supplied to the cell because during this calibration the conversion factor is calculated This factor relates the measured signal to the concentration of water vapour in the cell Follow the procedure described in section 12 7 2 Setting up a Combined Zero point and Humidity interference Calibration Stand alone Use We have explained in previous sections of this chapter section 12 6 and section 12 7 1 that a zero point calibration can only be performed alone if a humidity gain factor is already stored in the filter bank which are active during the zero p
38. each measurement cycle is followed immediately by another similar measurement cycle see Fig 4 2 Fig 4 2 An illustration of continuous sampling Measurement Yy A Cycle Sampling T Intervals Finish 1 Finish 2 Finish 3 Finish 4 Monitoring Period The monitoring period is the time between the start of the first measurement cycle in a monitoring task and the finish of the final measurement cycle in a monitoring task The monitoring period can either be pre set by the user in which case the Monitor automatically stops monitoring after the monitoring period is over or not pre set in which case the Monitor will continue to monitor until the user stops the monitoring task manually see section 4 3 8 3434i SF6 Leak Detector LumaSense Technologies A S Page 33 of 191 Chapter 4 The maximum time you can set a pre set monitoring period to be is 7 days If you try to enter a greater number of days the Monitor will automatically change the period to 7 days However if you do not set a pre defined monitoring period the Monitor will just store as much data as possible before starting to overwrite the oldest stored measurement results 4 2 Attaching the Sampling Tube and External Filter 1 Cut a short section of sampling tube of Poly Tetra Fluoro Ethylene Teflon tubing optional accessory Using Fig 4 3 and the instructions below attach one end of this tube to the air inlet stub on the back panel
39. filtration unit is changed before you calibrate The fine filter paper in the internal air filtration unit must be changed at least twice a year and more frequently if the environment in which the monitor is working contains large quantities of particulate material suspended in the air When the monitor is making measurements we recommend that a length of Teflon tubing of up to 50 metres in length is always attached to the stub of the air inlet see Fig 11 1 and that the special external air filtration unit UD 5023 optional accessory shown in Fig 11 3 is always attached to the free end of the sampling tube by means of the small stub An external coarse metal air filter prevents large particles insects etc being drawn into the unit while inside the unit is a fine 10um filter paper which prevents any finer particles from entering the Teflon sampling tube The fine filter paper in this unit must also be changed regularly at least as frequently as the fine filter paper in the internal fine air filter Fig 11 3 The external air filtration unit UD5023 used with the Monitor optional accessory Changing the fine filter paper in both the internal and external air filtration units is explained step by step in the following two sub sections Changing the Filter paper in the Internal Air filtration Unit While you do this we recommend that you wear clean rubber gloves Tools and equipment required 3434i SF6 Leak De
40. for each individual gas Overview of monitoring task Length of monitoring task DATA IN DISPLAY MEMORY RECORDED FROM 2014 06 10 08 57 TO 2014 06 10 09 18 MAX 12 0E 00 u 8 15E 00 ALARM MIN 11 7E 00 W WATER VAPOUR 1013 0mBar 2014 06 10 08 57 35 1 11 9Tdew W WATER VAPOUR 1013 0mBar 2014 06 10 08 58 11 2 11 9Tdew SAMPLING IS CONTINUOUS MONITORING PERIOD IS NOT PRE SET COMPENSATED FOR WATER VAP INTERFERENCE MONITORING TASK STARTED 2004 06 10 08 57 MEASUREMENT CHAMBER TEMPERATURE 38 6 C SAMPLE INTEGRATION TIME A 5s B __s C __s A CARBON MO B TVOC REF C D E W WATER VAP v DATA IN DISPLAY MEMORY RECORDED FROM 2014 06 10 08 57 TO 2014 06 10 09 18 891815_1f BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 51 of 191 Chapter 4 BE6028 14 1 Pressq andu The following text appears on the display WATER VAPOUR MEASURED The displays which follow indicate the type of text which appears each time q is pressed WATER MAX 8 55E 00 8 15 00 ALARM 1 MIN 7 01E 00 816E 03 This is the statistical report of the monitored gases vapours displayed when the monitoring task is complete In this case where MAX maximum concentration of water vapour measured during the whole monitoring task minimum concentration of water measured during the whole monitoring task ALARM1 the user defined concentration of water vapour which if measured by the M
41. important to use water vapour whose concentration is below the saturated vapour pressure of water vapour at the temperature of the room where calibration is to be performed otherwise water vapour will condense out in the analysis cell and damage it Before setting up the span calibration of the water vapour filter go into Set Up mode and select Tdew as a humidity unit Then when you have to enter the concentration of the water vapour you will use during calibration Always use water concentrations at least 2 C below the ambient room temperature For example if the ambient room temperature is 20 C then you can ENTER WATER VAPOUR CONC as 18 Tdew The procedure for setting up a span calibration of the water vapour filter is as follows 1 Press Measure S3 S3 S1 then the following text will be displayed PERFORM ZERO POINT CALIBRATION NO YES 2 Follow the set up of a span calibration of the water vapour filter by following the black arrows in the schematic diagram shown in Fig 12 17 The following text will appear CONNECT WATER VAPOUR 18 0 Tdew AND PRESS ENTER WHEN READY 3434i SF6 Leak Detector LumaSense Technologies A S Page 171 of 191 Chapter 12 Fig 12 17 Schematic diagram showing how to set up a span calibration task for the water vapour filter follow the arrows PERFORM ZERO POINT CALIBRATION NO YES using dry zero gas PERFORM HUM INTERFERENCE CALIBRATION NO YES
42. information If any of the above listed parameters are changed in the active set up they are also automatically changed in the Source Memory Block 3 Other Set Up Parameters 9 1 3 BE6028 14 This block of data contains all set up parameters except the optical filter parameters Before leaving the factory the parameters in this block are given factory set values These are the values obtained for a parameter when the Default button is pressed Working Memory RAM The Working Memory is a volatile memory that is data will be lost from it if electric power is removed from the Monitor When the Monitor is not connected to a mains power supply a lithium battery in the Monitor provides a back up power supply to protect the data in this memory When this battery is no longer providing enough power a warning BACK UP BATTERY TOO LOW will appear on the Monitor s display to indicate that the battery needs to be replaced by a new one There are four different blocks of data in the Working Memory see Fig 9 1 Block 1 contains only calibration factors and 3 optical filter parameters from the active Filter Bank 3434i SF6 Leak Detector LumaSense Technologies A S Page 104 of 191 Chapter 9 Block 2 contains 2 of the 5 optical filter parameters with values which are the same as those found in Block 2 of the Source Memory Block 3 contains all other set up parameters i e excluding the optical filte
43. is of course possible to set up any combination of calibration tasks for example that combining the zero point and humidity interference calibration tasks described in Section 12 11 After setting up any combined calibration task the Monitor responds by telling you about which gas supply is required for each calibration task When the combined calibration task is complete the text CALCULATING PLEASE WAIT appears on the screen If any calibration data is uncertain or unacceptable an error message marked by an asterisk will appear on the screen after the calibration factors have been calculated Whenever an asterisk is 3434i SF6 Leak Detector LumaSense Technologies A S Page 175 of 191 Chapter 12 shown on the screen further information about the condition of the Monitor can be obtained by pressing INFO Chapter 13 lists all the error messages connected with uncertain calibration results and gives an explanation of their significance so that the user can ascertain what action to take if such messages are displayed after calibration BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 176 of 191 Chapter 13 Chapter 13 Messages Related to Calibration July 2014 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 177 of 191 Chapter 13 13 1 13 2 BE6028 14 All the possible error messages connected with calibration results are discussed in this chapter Messages fall in
44. more detailed information about the condition of the Monitor at any particular moment of time if such information exists By pressing this push button measurement results in the Display memory of the Monitor can be printed out The lamp above this push button is lit while measurements are being printed and the display will show PRINTING MEASUREMENT DATA until all data has been printed out In this mode you are able to enter the Set Up Tree of the Monitor In set up mode the user is able to program the Monitor to perform almost any kind of measurement and amongst other things enter data about the optical filter s which are installed in the Monitor select different measurement parameters choose how measurement re sults should be formatted in print outs choose the interface and communication codes which are necessary to print data set the internal clock of the Monitor and choose the self tests the Monitor should perform When the Talk Listen LED is lit this means that there is activity on one of the interfaces BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 60 of 191 Chapter 5 5 3 Starting up or Restarting the Monitor 5 3 1 5 3 2 BE6028 14 Introduction When the monitor is started up in the normal way that is by switching on the AC Mains power switch on the back panel the monitor responds by performing a partial reset A partial reset is also performed if during operation the monitor is s
45. per million units ppm to mg m For a gas at 20 C and at 1 atmosphere pressure Concentration in mg m concen in ppm x Molecular Weight in l 24 04 12 8 2 BE6028 14 Performing a Span Calibration Stand alone Use The general equipment necessary to perform a calibration task is described in section 12 4 Follow the procedure from step 1 to step 3 inclusive and then continue as follows 1 a Connect the free end of the Teflon tubing mentioned in step 3 to the pressure valve on a cylinder of calibration gas b Press c Gently open the pressure valve on the gas cylinder and regulate the flow of gas so that when the Monitor s pump is 3434i SF6 Leak Detector LumaSense Technologies A S Page 165 of 191 Chapter 12 BE6028 14 running there is a positive flow of gas out of the flow meter This will ensure that the calibration gas is not diluted by atmospheric air The following text appears on the screen RESULTS NOT YET AVAILABLE PLEASE WAIT 3 Press Once the first measurement result is available the screen text illustrated above is replaced by a screen displaying the measurement results for example the following W p 5 34 V o 212 nV 3 40 4 C PRESS ENTER WHEN RESULTS ARE STABLE As soon as measurement results are available they not only appear on the display see Fig 12 11 but are automatically printed out on the printer if the Monitor has been set up to print a dat
46. text is displayed LOCATION NUMBER 1 RECALLED ACCEPT If you want to Stop press 3 this returns you to the original display showing SELECT MEMORY FUNCTION so that you can STORE any data which is stored in Display Memory as explained in section 9 3 1 Press S2 If data has not been stored in the chosen location a message will appear on the Monitor s display to inform the user Otherwise the data from the chosen location in Background Memory will be copied into Display Memory 5 Press MEMORY to exit BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 113 of 191 Chapter 9 9 3 4 BE6028 14 Deleting Data from Background Memory To delete data which has been stored in Background Memory Press MEMORY 53 LOCATION NUMBER 1 PRESS ENTER TO CHANGE VALUE Use the direction keys to select the location number After selecting the chosen location number the display will show the starting time of the oldest data stored in the Background Memory If the starting time of the oldest stored data to be deleted corresponds with the starting time shown on the display screen then press S1 and then S2 to accept that the data will be deleted from Background Memory Obtaining Information in Memory Mode It is not necessary for the user to remember the numbers of the locations in Background Memory which have been used to store data When the Monitor is ope
47. text to the following SELECT TASK MONITORING TASK CALI BRATION TASK 3 Press Sl This causes the following text to appear on the display MONITORING TASK SET UP NUMBER 1 PRESS ENTER TO CHANGE VALUES The number appearing on the screen will be a number from 1 to 10 4 Press and use the direction keys to change the monitoring task number to the desired value Then press again to accept the task number The following text appears on the display screen BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 87 of 191 Chapter 7 ACTIVE TASK MONITORING TASK NUMBER 1 START TASK DELAYED TASK CHANGE TASK 5 To start the measurement immediately press S1 To delay the start press S2 The following warning then appears on the display WARNING DISPLAY MEMORY WILL BE DELETED PROCEED STOP 1 Press S1 Delayed Start If you selected a delayed start the following text is displayed START TIME 1 00 00 PRESS ENTER TO CHANGE VALUE Use the direction push buttons to enter the desired date and start time e g 10 16 25 The following text is displayed ACTIVE TASK MONITORING TASK NUMBER 1 TASK WILL START AT 10 16 25 TIME 16 00 When the monitoring task starts the screen will change and display the same messages as those displayed when a monitoring task starts immediately BE6028 14 3434i SF6 Leak Detector
48. the Monitor s Display Memory is removed cleared The Display Memory is where the Monitor stores the results of all measurements while it is performing a monitoring task However the data in Display Memory can be copied into and stored in the Monitor s Background Memory This operation is described in section 9 2 When you start a new monitoring task the following warning is displayed WARNING DISPLAY MEMORY WILL BE DELETED to remind you to store any data that is presently stored in the Display Memory If a monitoring task is stopped any data already stored in Display Memory will be deleted when a monitoring task is started 1 Press MEASURE The following text appears on the screen 3434i SF6 Leak Detector LumaSense Technologies A S Page 86 of 191 Chapter 7 ACTIVE TASK MONITORING TASK NUMBER 1 START TASK DELAYED TASK CHANGE TASK Please note if you do not use one of the select keys within a Short time after the above text appears the Monitor will automatically stop operating in Measure mode the light emitting diode in the MEASURE key switches off If this happens just press MEASURE again The active monitoring task number is the number of the monitoring task you wish the Monitor to perform 2 If the monitoring task number displayed is correct then go to step 5 If the number on the display is not correct then press S3 to change the task number This changes the display
49. the absolute concentration of water vapour in air samples If you only wish to use the water vapour filter to compensate for water vapour interference then it only has to be zero point calibrated If you wish to use it to measure the absolute concentration of water vapour in air samples then it has to be zero point calibrated and span calibrated It is vitally important to accurately zero point calibrate the water vapour filter as this influences the Monitor s ability to compensate for interference from water vapour This demands that the zero gas you use during the zero point calibration of the filter must be perfectly dry 3434i SF6 Leak Detector LumaSense Technologies A S Page 167 of 191 Chapter 12 12 9 1 Setting up a Zero point Calibration of the Water vapour Filter If you wish to zero point calibrate the water vapour filter you must zero point calibrate all installed optical filters The concentration offset factors calculated during zero point calibration of the filter A will be stored in the filter banks the active during calibration Check therefore that you make the relevant filter bank active for the filter before calibrating it This is discussed in more detail in section 12 3 3 The procedure for setting up a zero point calibration of the water vapour filter is as follows 1 Press Measure S3 3 1 then the following text will be displayed PERFORM ZERO POINT CALIBRATION
50. the set up is automatically deleted from both the Source Memory and the Working Memory as it is no longer valid BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 107 of 191 Chapter 9 9 1 6 BE6028 14 Source Memory 1 Calibration Factors 2 Optical filter 3 Other Set Up Parameters Set Up Parameters 3 oT oT New active values factory set values All Calibration Change UA no factors deleted of Filter in in A files position A 1 Calibrgtion Factors from Active Filter Banks 2 Optical filter 3 Other Set Up Parameters Set Up Parameters 4 Background Memory 5 Display Memory data copied from storage of a p g Display Memory measurement results Working Memory For example if the UA number of the filter installed in position A of the filter carousel is changed in the active set up then calibration factors are deleted from the active file A in the Working Memory and from files A 1 A 2 A3 A 4 and A 5 in the Source Memory of the monitor see Fig 9 3 The Monitor will not be able to measure any gas with filter A until it has been fully calibrated see Chapter 12 for details Effect of a Full Reset on the Monitor s Memory A FULL RESET of the Monitor changes the data stored in its Working Memory as follows 1 All data stored in Display Memory and Background Memory is deleted 2 Values of the Optical Filter Set up Parameters in Block 2 of The Source Memory are
51. to be used for Online monitoring PC use please follow the instructions in the BE6027 User Manual for online monitoring and set up 1 3 PC Use BZ7002 Calibration Software The BZ7002 Calibration Software is used for calibration of the gas monitor from a PC Please refer to the BZ7002 User Manual BE6034 and Chapter 12 of this Manual 1 4 PC Use BZ7003 Offline Software Data from the display memory can be copied to the background memory after a measurement task is performed The BZ7003 Offline Software is used for upload of these measurement data from the monitor to the PC in either excel format or text format files Please refer to the User Manual BE6035 and Chapter 9 of this manual for further instructions 1 5 Stand alone Use In some situations it may be necessary to set up without connecting it to a PC The procedure to do this are covered in this manual under the Stand alone use headings The way these instructions are presented is shown below BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 9 of 191 Chapter 1 SELECT SET UP BRANCH MEASUREMENT FORMAT CONFI GURATI ON The display above is used continuously through out this manual It assists you displaying the text on screen and by indicating which of the push buttons can and should be pressed In general the push buttons shown above are used to navigate through the various modes possible within the 3434i but are described in more detail below S1 S
52. 04 4 Pressu This causes the following text to appear on the screen WATER VAPOUR MEASURED Use q to scroll through the following screen displays MONITORING PERIOD IS NOT PRE SET BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 48 of 191 Chapter 4 4 3 8 BE6028 14 WATER MAX 8 55E 00 8 15 00 MIN 7 01E 00 816E 03 W WATER VAPOUR 971 88mBar 2014 01 16 09 50 32 7 39Tdew W WATER VAPOUR 971 88mBar 2014 01 16 09 51 33 7 49Tdew 5 Pressu This causes the display to jump over to the list of measurement results for gas A The following text appears A Sulphur hexafluoride 972 06 mBar 2014 01 16 09 51 33 7 43 mg m3 By using p and q you can now scroll through the list of measurement results for gas A If you do not wish to view the results anymore press H this acts as a go to head function The following text appears A 7 42E 00 D Stopping a Monitoring Task 1 Let the Monitor monitor for a total period of about 30 minutes and then press MEASURE The following text will appear on the screen STOP MONITORING TASK YES If you pressed MEASURE accidentally this screen enables you to cancel the request to stop the monitoring task in progress by pressing S1 2 Press S3 to stop the task 3434i SF6 Leak Detector LumaSense Technologies A S Page 49 of 191 Ch
53. 12 10 The following text will appear on the display ZERO POINT CALIB CONNECT CLEAN DRY AIR AND PRESS ENTER WHEN READY Performing a Zero point Calibration Stand alone Use The general equipment necessary to perform a calibration task is described in section 12 4 Follow the procedure from step 1 to step 3 inclusive and then continue as follows 1 a Connect the free end of the Teflon tubing mentioned in step 3 to the pressure valve on a cylinder of zero gas e g pure nitrogen b Gently open the pressure valve on the gas cylinder c Press p d Use the pressure valve on the gas cylinder to regulate the flow of gas so that when the Monitor s pump is running there is a positive flow of gas out of the flow meter This will ensure that the zero gas is not contaminated by atmospheric air The following text appears on the screen 3434i SF6 Leak Detector LumaSense Technologies A S Page 153 of 191 Chapter 12 BE6028 14 RESULTS NOT YET AVAILABLE PLEASE WAIT Once the first measurement result is available the screen text illustrated above is replaced by a screen displaying the measurement results for example the following W u 11 3HV o V 1 38 6 C PRESS ENTER WHEN RESULTS ARE STABLE As soon as measurement results are available they not only appear on the display see Fig 12 11 but are automatically printed out on the printer if the Monitor has been set up to print a data log
54. 2 Press MEASURE S3 3 S1 then the following text will be displayed PERFORM ZERO POINT CALIBRATION NO YES 3 Follow the set up of a humidity interference calibration task by following the black arrows in the schematic diagram shown in Fig id 2 12 The following text will appear on the display HUM INTERFERENCE CONNECT CLEAN WET AIR AND PRESS ENTER WHEN READY Performing a Humidity interference Calibration The general equipment necessary to perform a calibration task is described in section 12 4 and illustrated in Fig 12 5 The gas supply required during a humidity interference calibration is a supply of clean air containing a constant concentration of water vapour 1 Follow the procedure explained in section 12 4 from steps 1 to 3 inclusive and the continue as follows a Connect the outer end of the extra empty flask s outlet tube B to the Teflon tubing which is connected to attachment point 3 of the Y piece see Fig 12 6 Caution the inner end of the empty flask s outlet tube B must NEVER be covered by water b Gently open the pressure valve on the zero gas cylinder 3434i SF6 Leak Detector LumaSense Technologies A S Page 157 of 191 Chapter 12 BE6028 14 c Press p d Use the pressure valve on the zero gas cylinder to regulate the flow of gas so that when the Monitor s pump is running there is a positive flow of gas out of the flow meter This will
55. 2 S3 These push buttons are illustrated as S1 S2 and S3 On the 3434i they correspond to the key and their position on the instrument These select push buttons enable you to select one of the options displayed This group of 5 push buttons are referred to in this manual collectively as the direction keys The symbols below are used to simplify the instruction in this manual A amp V enable you to increase amp decrease numbers respectively or to go to the Previous amp Next Displays respectively lt amp gt enable you to move across number fields or go to the Previous amp Next gases respectively p depending on the situations acts as an Enter or Go To Head key Memory Function push buttons are always represented with the name BE6028 14 of the push button enclosed in a box which is shaded in 3434i SF6 Leak Detector LumaSense Technologies A S Page 10 of 191 Chapter 1 SYSTEM FORMAT BE6028 14 Text that appears on the display screen is shown in an open shaded box using UPPER case letters System General Clock When referring to any part of the Set up tree the text is shown in open shaded boxes with the same typeface as that used in the tree 3434i SF6 Leak Detector LumaSense Technologies A S Page 11 of 191 Chapter 2 Chapter 2 Preliminary Tasks July 2014 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 12 of 191 Chapter 2 W
56. 20 0 C Sample Integration Time Filter A 2S Filter W 4 amp General Information Start Time 2014 02 28 08 43 Stop Time 2014 02 28 09 13 Results Not Averaged Number of Event Marks g 0 Number of Recorded Samples 1 Alarm 1 Alarm 2 Max Mean Min Std Dev Gas A 6 69E 03 3 00E 03 2 2E 03 Water 4 98E 80 4 38E 00 4 32E 00 aes 3434i SF6 Leak Detector LumaSense Technologies A S Page 96 of 191 Chapter 8 8 2 1 Statistical Analysis Terms In the statistical analysis of the measurement results for each gas see j in Fig 8 1 the following statistics appear The Mean Value u this is the linear average of all measurements of a gas taken during the total monitoring period The calculation of the mean value can be expressed mathematically as follows n N C The Mean Value 2 _ N mene measurement cycles performed during the monitoring period T between the cursors Ch gas concentrations where n 1 to N The Standard Deviation o this is the standard deviation of a particular gas s measurements from the mean value u of this gas Standard deviation can be expressed mathematically as follows The Standard Deviation Where u the mean value Ch individual gas concentrations N total number of measurements 8 2 2 Symbols used in Displayed Measurement Data If an asterisk appears on the display alongside any gas concentration it indicates that something happened during the measurement You
57. 4 a Press S1 and the following display appears LENGTH OF SAMPLING TUBE 0 00 m PRESS ENTER TO CHANGE VALUE b Press c Use the direction keys to define the tube length A and to increase and decrease the numbers respectively t and u to move the cursor across the fields Change the length of the sampling tube shown on the screen to the length of the tube you attached to the Monitor in section 4 2 Note the range of acceptable values for the sampling tube ranges from 00 00m to 99 00m d Press to select displayed length The following display appears NORMALIZATION TEMPERATURE 20 0 2 C PRESS ENTER TO CHANGE VALUE The Monitor measures gas concentrations in the absolute unit of mg m a unit which is dependent on temperature Alternatively the Monitor can calculate gas concentrations in parts per million ppm by volume this unit is independent of the temperature of the gas If mg m is chosen as the gas concentration unit it is therefore necessary to define the temperature at which you wish the Monitor to calculate gas concentrations This pre defined temperature is termed the NORMALI ZATION TEMPERATURE e Press to change value 3434i SF6 Leak Detector LumaSense Technologies A S Page 39 of 191 Chapter 4 f Use the direction keys to define the normalization temperature A and W to increase and decrease the numbers respectively t and u to move the cursor across the fields
58. 6 of 191 Chapter 12 12 9 BE6028 14 A p 123 8 V o 617 nV 6 40 4 C PRESS ENTER WHEN RESULTS ARE STABLE These results have been shown on the data log print out If they have stabilised continue to the next Step 4 Press The text CALCULATING CALIBRATION FACTORS PLEASE WAIT appears on the screen The Monitor only uses the last six measurement results when calculating any calibration factor The conversion factor in mg m3 per volt which is calculated during a span calibration is the factor which allows the Monitor to relate the signal produced by the gas to the concentration of gas in the cell If any calibration data is doubtful or unacceptable an error message marked by an asterisk will appear on the screen after the calibration factors have been calculated Whenever an asterisk is shown on the screen further information about the condition of the Monitor can be obtained by pressing the NFO button Chapter 13 lists all the error messages connected with doubtful calibration results and gives an explanation of their significance so that the user can ascertain what action to take if such messages are displayed after calibration Calibration of the Water vapour Filter Stand alone Use The water vapour filter has two different functions Its most important function is to enable any measured signal to be compensated for water vapour interference Its other function is to measure
59. 6027 for the 7810 application is available for reference Using the online mode 7810 Application Software provides you with a variety of Software Alarm options Not only are the alarm trigger levels definable but the action resulting from an alarm being triggered can also be defined here This enables you to connect external warning systems to the monitoring system The philosophy behind the 7810 Application Software is common to almost all Windows programs Access to the various levels of the program is gained by use of the MENU BAR PULL DOWN MENUS NEW WINDOW options and INDEX CARD separators These familiar procedures together with the simple software structure make the instructions in the On line sections of this manual understandable and easy to implement 3434i SF6 Leak Detector LumaSense Technologies A S Page 27 of 191 Chapter 3 3 2 Stand alone Use BE6028 14 This method of operation is available to those of you who wish to use the monitor without connection it to a PC The monitor is set up and the results are displayed via the monitor s front panel The structure of the monitor set up can be viewed like an inverted tree The main branches divide and separate into minor branches These in turn divide again and again To move through the tree the branches are selected using the select push buttons see section 1 5 Use the Set up Tree supplied with the monitor and the example steps below to see how the ins
60. Changing the RS 232 Communication Parameters The communication parameters for the serial interface must be set using the push buttons on the front of the monitor 1 Press SET UP S3 S1 s3 S1 following text SELECT BAUD RATE 9600 PRESS ENTER TO CHANGE VALUE If the baud rate displayed is incorrect press and use A and YW to display the correct value Press The screen display now shows the again to store the selection If the baud rate displayed is correct then press W to continue to the next parameter Press Press Press Press Press Press S1 to select 1 STOP BIT IS1 to select 7 DATA BITS IS2 to select EVEN PARITY IS3 to select LEASED LINE S3 to select HARD WIRED HANDSHAKE SET UP to exit the set up mode Press RESET and S1 in order that the new settings are enabled 3434i SF6 Leak Detector LumaSense Technologies A S Page 18 of 191 Chapter 2 2 4 3 Checking Changing the Text line Terminator The Text line Terminator must be set using the push buttons on the front of the monitor Press SET UP S2 v v v S3 Press SET UP to exit the set up mode 2 4 4 Checking Changing the Data Log and Error Log Options The Data Log and Error Log must be set using the push buttons on the front of the monitor Press SET UP S3 S1 S1 S3 VS1 S1 Press SET UP to exi
61. D IP ADDRESS 000 000 000 000 CANCEL DEFAULT Here you can change the 4 individual numbers in the protected IP address by using the A and VW keys Each of the 4 individual numbers can be set in the range from 000 to 255 You can step between the 4 individual numbers in the protected IP address by using the lt and gt keys In case you want to return to the start values of the protected IP address press the S1 CANCEL key In case you want to return to BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 21 of 191 Chapter 2 2 5 2 BE6028 14 the default stored value of the protected IP address press the S3 DEFAULT key When you have set the protected IP address press the key If you previously selected that the IP address was NOT to be set by the DHCP server you will proceed to the below step 11 If you instead selected that the IP address to be set by the DHCP server the screen display now shows the following text CURRENT DHCP ADDRESS 192 168 000 062 ACCEPT 10 Here the IP address of the 3434i which has been assigned by the DHCP server is displayed This IP address can be used to manually set Ethernet communication in a PC application which accesses the 3434i gas monitor Press the S2 ACCEPT key to accept 11 This concludes the setup of the Ethernet parameters of the 3434i gas monitor Press the SET UP key to leave the setup Display th
62. Description of Fault Possible Cause ABORTED CHOPPER FAILED AIR SHUNT BLOCKED SAMPLE The pressure of air in the analysis cell is too high The microphones risk being damaged by The chopper wheel is not running The air shunt valve is either defective or blocked exposed to such pressure 1 The chopper motor is not working 2 The optical sensor which checks the chopper s movement is not working RANGE INTERNAL TEMPERATURE OUT OF The temperature in the analysis cell is either too high or too low As the Monitor is operating out side its temperature specifications accurate measurements cannot be guaranteed 1 The ventilation fan is defective 2 The ambient air temperature is either too high or too low 3 The temperature sensor is defective RANGE IR SOURCE TEMPERATURE OUT OF The temperature of the infrared light source is either too high or too low As the R source is oper ating outside its temperature specifications accurate measurements cannot be guaranteed The infra red light source is defective MICROPHONE TEST FAILED The signal received from the microphone during the self testing procedure is out of range 1 The analogue card is defective 2 A microphone s is defective The pump cannot build up 1 The pump is the necessary pressure defective PUMP TEST FAILED during the self testing 2 The internal procedure pneumat
63. LUMASENSE TECHNOLOGIES Instruction Manual 34341 SF6 Leak Detector BE6028 14 Index Tas 1E SRE try erate res eee ae an ene en ee nec eC fe peor en A Oe iv ee ey en 2 3434i SF6 Leak Detector eona a a E daha hee netics ov eae nie need ae ne else ete 4 Safety Considerations a aa sees diss bindu hee aie aca eek ow unseen ahineh ee E EAEE AR EARE EEA 5 Applying POWer antenie a eho eal ohh a A a E a ohn bie Se bie nate GM eae aul Ss 7 Chapter Using this M n l iiser cece cect eee see Raed cece nen tae Pate aes eet Seale a ae Sea eee eee 8 LT olntroducti n iaaa arson eee Ab ailaia ea a A aa Ape eA ee eae eA 9 1 2 ONNE MONITORIN aaaea a a cineeai dren aa eden noe a ae i 9 1 3 PC Use BZ7002 Calibration Software 0 ccc eee eee eee rate teeta teeta eee 9 1 4 PC Use BZ7003 Offline Software ec eee nee nena e neta ene ea eee 9 1 5 Stand a NA US Cre aii Gaertn need haat ee A ed 9 Chapter 2 Preliminary TaSKS iwini gece tb reece a Ta eae ee ee eae eee eee eae ie ree eerie eae 12 2 1 Connecting the Monitor to the PC cece eee ene eaten e nena ene a teen a eee 13 2 2 Checking changing the Fuses in the Monitor cceceee eee ee ee eee ee eee eee ee eae ee ea ene eae 14 2 3 Setting the USB Communication Parameters 0 cceeeee eee eee eee eee ee eee eae ee eaten 17 2 4 Setting the RS 232 Communication Parameters ccccceee cece eee ee eee eee ee teens ea eee ea enes 18 2 5 Setting
64. LumaSense Technologies A S Page 88 of 191 Chapter 7 Immediate Start If you selected an immediate start the following text appears on the screen MEASUREMENT IN PROGRESS RESULTS NOT YET AVAILABLE 2 When the first measurement cycle is complete the Monitor will automatically display the results and update them every time a new measurement cycle is completed An example is shown below A 452E OL This display gives the overview of the gas vapour concentrations last measured in this case the concentration of gas A and humidity of the water vapour are in the units that were selected that is mg m for gas A and Tdew for water vapour see section 4 3 2 If no pre set monitorin eriod is defined then to stop the monitoring task press MEASURE and 53l BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 89 of 191 Chapter 8 Chapter 8 Viewing Measurement Data Using the Monitor July 2014 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 90 of 191 Chapter 8 8 1 Displayed Monitoring Task Data BE6028 14 When the Monitor is switched on but not being operated in any mode the screen display text identifies the data stored in its Display Memory by displaying the day and time of the first stored measurement cycle of the monitoring task as well as the day and time of the last measurement cycle of the monitoring task For example DATA IN DISPLAY MEMORY RECORDED
65. Monitor s memory before being uploaded to the PC 9 1 Types of Memory in the Monitor 9 1 1 9 1 2 BE6028 14 The Monitor has three types of memory 1 A Read Only Memory ROM 2 An Electrically Erasable Programmable Read Only Memory EEPROM which we have named the Source Memory 3 A Random Access Memory RAM which we have named the Working Memory Read Only Memory ROM Data stored in this memory cannot be changed by the user The Optical Filter Factors which describe each of the optical filters which are available for installation in the Monitor are stored in this memory These factors are listed in a print out of the Calibration Data Block see section 10 7 When optical filters are installed in the carousel wheel the Monitor must be informed about Which filters have been installed in its carousel UA numbers of the filters and Where they have been installed position A E of the carousel see section 12 3 3 This information allows the Monitor to read the correct optical filter factors from its ROM memory when the filter is installed As these factors are used in the calculation of calibration factors it is vitally important that this information is correctly entered before calibration is performed Source Memory EEPROM The data stored in Source Memory is not lost if A C mains power is removed from the Monitor There are three blocks of data in the Source Memory see Fig 9
66. Monitoring Task branch of the Monitor s set up tree and has automatically given these parameters default values 1 A defective back up battery 2 A defective Working Memory RAM 3 A software fault BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 188 of 191 Chapter 14 X ON X OFF HANDSHAKE CONFLICT The Monitor receives the handshake signal from the RS232 CTS clear to send line but it has not been set up to use this CTS line The Monitor and RS232 device printer do not agree about which handshake signal they should use Perhaps the wrong interface cable has been used TIMEOUT DEVICE NOT CONNECTED Monitor wishes to send data data log or error log via the IEEE interface but there is no response from the device with the address entered in the Monitor set up 1 No device is con nected to the Monitor 2 The device address has been entered in correctly in the Monitor s set up TIMEOUT DEVICE NOT READY Monitor wishes to send data print data log or error log but after the start of data transmission the device stops receiving data 1 The device is off line it cannot receive data 2 The device is not able to receive data fast enough 3 The device is no longer connected to Monitor BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 189 of 191 Chapter 14 Error Messages
67. NTER TO CHANGE VALUE This display ONLY appears if you have selected to perform CALIBRATE WATER VAPOUR FILTER zero point calibration of filters installed in positions A to E NO YES PERFORM WATER VAPOUR ZERO POINT CALIB NO YES using perfectly dry zero gas PERFORM WATER VAPOUR SPAN CALIBRATION NO WATER VAPOUR CONC End of the set up section of the calibration task PRESS ENTER TO CHANGE VALUE PERFORM PRACTICAL CALIBRATION TASK using zero gas containing an accurately known concentration NO YES of water vapour 900166_le To calculate the humidity gain factor for a filter during a humidity interference calibration it is necessary to have a BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 156 of 191 Chapter 12 12 7 2 BE6028 14 concentration offset factor for the filter and vice versa Note If a concentration offset factor is not stored in each of the filter banks which are active during a zero point calibration then it is necessary to perform a combined zero point and humidity interference calibration task The set up of this combined task is discussed in section 12 11 If you only wish to set up a humidity interference calibration task the procedure is as follows 1 For the installed filter enter the no of the filter bank where you wish the Monitor to store the humidity gain factors which will be calculated during the humidity interference calibration task
68. O CHANGE VALUE HIGH GAS CONC PRESS ENTER TO CHANGE VALUE This display ONLY appears if you have selected to perform CALIBRATE WATER VAPOUR FILTER zero point calibration of filters installed in positions A to E NO YES PERFORM WATER VAPOUR ZERO POINT CALIB NO YES using perfectly dry zero gas PERFORM WATER VAPOUR SPAN CALIBRATION NO WATER VAPOUR CONC End of the set up section of the calibration task PRESS ENTER TO CHANGE VALUE PERFORM PRACTICAL CALIBRATION TASK using zero gas containing an accurately known concentration NO YES of water vapour 900170_le BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 152 of 191 Chapter 12 12 6 2 BE6028 14 Use the Set up Tree in Fig 12 10 to help you navigate through the different screen displays Note before starting a calibration S I T see section 12 3 3 and Flushing Type see section 7 2 need to be set so that they are the Same as those values used when monitoring 1 For each installed filter enter the no of the filter bank where you wish the Monitor to store the concentration offset factors which will be calculated during the zero point calibration task 2 Press MEASURE S3 S3 S1 The following text will be displayed PERFORM ZERO POINT CALIBRATION NO YES 3 Follow the set up of a zero point calibration task by following the black arrows in the schematic diagram shown in Fig
69. OHERENCE This message will be given in the status display if V lies between the values Vin 0 and Vin 0 This indicates that the two gas concentrations you have chosen lie in the linear region of the calibration curve If the high concentration of gas you used Chigh is equal to or greater than the highest concentration you expect to measure then it is not necessary to use a two point span calibration a single point span calibration using Crign as the concentration of span gas used will be sufficient to give you a good calibration result However if the high concentration of gas you used is less than the highest gas concentration you expect to measure the two point span calibration task should be repeated using a high concentration which is equal to or greater than the highest concentration you expect to measure There will therefore be a better chance to find a point in the non linear region of the span calibration curve so that any non linearity can be plotted GAS X MEAS DOES NOT FIT NON LINEAR CURVE This message will be given in the status display if Vi is less than Viin 0 This message indicates that a two point span calibration cannot be performed If Vi is found to be greater than Vin 6 then the Monitor will try to fit the two measured points onto a curve whose shape has been pre determined by LumaSense by an iterative process The iterative process involves scaling on the concentration and signal axes until the two p
70. P port numbers does not need to be changed press the W key and you will proceed to the below step 8 If you selected to change the IP port number the screen display now shows the following text 3434i S IP PORT NUMBER 23 CANCEL DEFAULT Here you can change the IP port number by using the A and V keys The port number can be set in the range from 0 to 32767 In case you want to return to the start value of the IP port number press the 1 CANCEL key In case you want to return to the default stored value of the IP port number press the S3 DEFAULT key When you have set the IP port number press the M key The screen display now shows the following text PROTECTED IP ADDRESS 000 000 000 000 PRESS ENTER TO CHANGE VALUE 8 9 In case you want the 3434i gas monitor to be able to communicate only with a certain PC on the local network you can set the IP address of this PC as the protected IP address This can be desired due to security reasons so no other PC is able to communicate with the 3434i gas monitor If no protection is desired the protected IP address should be set to a value of 000 000 000 000 If you want to change the protected IP address press the key If the protected IP address does not need to be changed press the WV key and you will proceed to the below step 10 If you selected to change the protected IP address the screen display now shows the following text PROTECTE
71. Pressure unit has been changed to mmHg 3434i SF6 Leak Detector LumaSense Technologies A S Page 55 of 191 Chapter 5 Chapter 5 The Monitor July 2014 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 56 of 191 Chapter 5 5 1 Introduction This chapter is primarily for those users who want to use the monitor as a stand alone instrument But the start up and alarm relay sections are also of interest for the PC user 5 2 Front Panel BE6028 14 The front panel of the monitor is dominated by a 2 x 40 character fluorescent display screen 3 Select push buttons located beneath it and 5 direction push buttons see Fig 5 1 The rest of the push buttons situated in a line along the bottom are function push buttons Small light emitting diodes LEDs are mounted above some of the front panel push buttons Their function is to inform you of the operating state of the monitor For example if the LED above the MEASURE push button is lit it indicates that the Monitor is either busy performing measurements or has been set up to start measurements at a pre defined time Fig 5 1 The front panel of the 3434i 3434i SF6 Leak Detector LumaSense Technologies A S Page 57 of 191 Chapter 5 BE6028 14 Direction Push buttons This group of 5 push buttons is referred to in this manual as the direction push buttons A amp V have two uses to increase amp decrease numbers respectively or to go to the Pr
72. RS 232 at the back of the Monitor Push the connector at the other end of the RS 232 cable on to this socket and secure it firmly using the securing screws Turn on the PC Wait for Windows to start up The instruments can be turned on at the mains now Fitting the USB Cable The gas monitor can be connected to an USB port on the PC in order to make measurements using the LumaSoft Gas Single Point 7810 PC application which communicates using the USB interface communication protocol 3434i SF6 Leak Detector LumaSense Technologies A S Page 13 of 191 Chapter 2 2 2 3 The USB interface cable can be connected while the gas monitor is switched on Fitting the Ethernet Cable The gas monitor can be connected to a local Ethernet network in order to make measurements using the LumaSoft Gas Single Point 7810 PC application which communicates using the TCP IP network interface protocol or to view the homepage of the gas monitor in a standard PC internet browser The Ethernet network cable can be connected while the gas monitor is switched on Connect a standard Ethernet network cable to the Ethernet socket connector on the back of the gas monitor Connect the other end of the Ethernet network cable to your local network The yellow LED on the Ethernet socket connector will lit if a local network connection is detected 2 2 Checking changing the Fuses in the Monitor 2 2 1 BE6028 14 Unplug the Monitor from the mains
73. TICAL FILTER FACTORS Back temp factor 1 184 7E 3 Conc temp factor 4 7101E 3 Hum temp 1 factor 3 819E 03 Hum temp 2 factor 27 08E 03 Hum temp 3 factor 8 BBOBE OB Hum sqr factor 3 8020E 03 Hum cub factor 8 BBOBE 80 ACTIVE CALIBRATION DATA Gas name SF6 Molecular weight 146 05E 00 High Alarm Limit 1 ppm High Alarm Limit 2 ppm Span Calibration performed 2014 01 19 Type of Span Calibration Single Point Conversion factor 105 71E 03 Concentration 3 90 2 mg m3 Microphone Signal 785 u Zero Point Calibration performed 2014 01 19 Concentration offset factor 3 9163E 06 Microphone Signal 3 98 uy Hum Interference Calibration performed 2014 01 19 Humidity gain factor 9 936 7E 03 Microphone Signal 6 90 uy Cross Interference Calibration performed SF6 interference on Filter B Filter C Filter D Filter E Checking and Changing Optical Filter Parameters Before starting calibration it is always wise to check that information about the installed optical filter has been entered correctly in the active set up of the Monitor If the incorrect UA number is entered for the optical filter the incorrect optical filter factors will be used in the calculation of the calibration factors and calibration will therefore be useless The UA number can only be changed using the push buttons on the front panel of the monitor 3434i SF6 Leak Detector LumaSense Technologies A S Page 141 of 191 Chapter
74. Warning and Error Messages 0 6 c cece e eee eee eee eee netted 185 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 3 of 191 Safety Considerations 3434i SF6 Leak Detector July 2014 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 4 of 191 Safety Considerations Safety Considerations Throughout this manual Monitor is used for The 3434i SF6 Leak Detector BE6028 14 The Monitor complies with EN IEC 61010 1 2 Edition Safety requirements for electrical equipment for measurement control and laboratory use SP C US Can CSA C22 2 No 61010 1 04 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use UL Std No 61010A 1 2 Edition Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use To ensure safe operation and retain the Monitor in safe condition note the following EXPLOSION HAZARD TO AVOID THE POSSIBILITY OF AN EXPLOSION MONITORING OF FLAMMABLE GASES IN EXPLOSIVE CONCENTRATIONS MUST NEVER BE ATTEMPTED Never operate the 3434i SF6 Leak Detector in potentially explosive environments When monitoring potentially flammable or toxic gases it is essential that The instrument itself is placed in a well ventilated area outside the potentially hazardous zone A sufficiently long tube is connected to the air outlet on the back panel so that the sampled gas is carried
75. a log see section 10 5 Remember to turn off the data log when the calibration is complete Each time a sample of gas is drawn into the analysis cell the Signal is measured using both optical filter A and the water vapour filter W but due to lack of space on the display the Monitor only displays the signal measured using the water vapour filter The data log print out however shows the signal measured using both the water vapour filter and filter A A maximum of 6 measurements are stored in the Monitor during any calibration The number n indicates how many measurements are stored When 7 measurements have been performed the number n will show the number 6 because the very first measurement is overwritten by the 7 measurement so that only 6 measurements are still stored When 8 measurements have been completed the number n will also show 6 because the results of the first and second measurements have been overwritten by the 7 and 8 measurement results and so on 2 Let the Monitor continue measuring the span gas A until the temperature is stable Look at the print put of the average and standard deviation measurements for 1 the water vapour and 2 the filter A When these values have stabilised for both filters span calibration measurements do not need to continue This causes the following text to appear on the screen 3434i SF6 Leak Detector LumaSense Technologies A S Page 16
76. actor for the particular filter to be calculated During the humidity interference calibration task the signal in the cell when a particular optical filter is used is measured when wet zero gas is in the cell this signal is compared with the signal measured with the water vapour filter to give the humidity gain factor The above message is given if the humidity gain factor is found to be less than zero This could indicate that the zero gas you used during the zero point calibration was not dry or alternatively that the concentration of water vapour you used during the humidity interference calibration was too low GAS X CALIBRATION FACTOR LESS THAN 0 This message is associated with a single point span calibration task The gas conversion factor calculated during the single point span calibration task is found to be less than zero This could indicate that the concentration of gas used during the calibration was too low GAS X LOW MEAS gt HIGH MEAS GAS X MEAS INDICATES LINEAR COHERENCE GAS X MEAS DOES NOT FIT NON LINEAR CURVE GAS X CALIBRATION IMPOSSIBLE MAX ITER All these messages are associated with a two point span calibration task During a two point span calibration the signal Vhigh is measured when the gas concentration Chigh is in the cell and the signal Viow is measured when the gas concentration Ciow is in the cell see section 12 8 3434i SF6 Leak Detector LumaSense Technologies A S Page 180 of 191 Ch
77. alibration should be used when you wish to measure in the linear range We define the linear range as the dynamic concentration range in which you can measure with an error of 5 of the real concentration this is illustrated in Fig 12 14b For the most common gases the linear range is from its detection limit and up to 10 000 times its detection limit Two point calibration is recommended to be used when you wish to measure in the non linear range and when you wish to measure over a dynamic range of 100 OOO Gas Concentrations Single point Calibration BE6028 14 If a single point span calibration is performed then the span gas should have a concentration which is at least 100 times its detection limit and preferable not more than the highest concentration you expect to measure For certain gases it can be inexpedient to use a concentration of at least 100 times its detection limit e g if you wish to measure a poisonous gas with a high detection limit it would be natural to use a lower concentration However this means that the noise and vibration will have a larger influence on the calibration This must therefore be taken into account when considering using a lower concentration 3434i SF6 Leak Detector LumaSense Technologies A S Page 162 of 191 Chapter 12 Gas Concentrations Two point Calibration During a two point span calibration the total signal in the cell Viow is measured first with a low concentration Ciow o
78. apter 13 BE6028 14 Fig 13 1 Curve illustrating the two points measured during a two point span calibration task V lies on this line Gas Concentration 90017 le GAS X LOW MEAS gt HIGH MEAS This message indicates that the signal measured in the cell when the gas concentration was low is found to be greater than the signal when the gas concentration was high The above message could indicate that the span gas concentrations were incorrectly entered when the task was set up that is the entered low gas concentration was actually greater than the entered high gas concentration Alternatively it could indicate that the concentration of the gas supplied to the Monitor during the measurement of Viow was actually the high concentration Chigh and vice versa The signals Vnign and Viw have to be corrected for water vapour interference and cell noise that is Vhigh Vottset VH20 Vh and Viow Voffset Vu20 Vi These two points Vn Ch and Vj C can then be plotted on a graph see Fig 13 1 3434i SF6 Leak Detector LumaSense Technologies A S Page 181 of 191 Chapter 13 BE6028 14 When the two signals have been measured the Monitor then finds the value 0 1 of Vn and finds out the relationship between the measured values If there is a perfectly linear relationship between the points Cow Viow and Chigh Vhigh then Viin Ch Ci VI GAS X MEAS INDI CATES LI NEAR C
79. apter 4 4 3 9 BE6028 14 The text which appears briefly on the screen indicates that the Monitor is aborting the monitoring task and a summary of the monitoring task will appear on the display as soon as the Monitor has aborted the task For example DATA IN DISPLAY MEMORY RECORDED FROM 2014 01 16 09 50 TO 2014 01 16 10 04 Scrolling through Measurement Results after Completion of a Monitoring Task All measurement data collected during a monitoring task is stored in Display Memory together with the parameters which describe the task a description of the task is given in section 4 3 4 Using the direction push buttons you can scroll through the set up parameters as well as the individual gas concentration measurements results as explained in section 4 3 7 The organisation of data collected during a monitoring task is illustrated in Fig 4 4 This illustration also shows the function of the various direction keys For example u enables you to move from the measurement results of one gas to the measurement results of another 3434i SF6 Leak Detector LumaSense Technologies A S Page 50 of 191 Chapter 4 Fig 4 4 Organisation of the data displayed on the Monitors screen after completion of a monitoring task B identification of measurements stored in Display Memory ldentification of monitored gases Statistical analysis of measurement results for each individual gas B List of measurement results
80. as When this concentration is measured the Monitor breaks the connection between pins 1 amp 2 or 4 amp 5 The monitor will furthermore activate the internal beeper and write the following message on the display WARNING ALARM LI MIT EXCEEDED The user can switch off the beeper and the message by pressing I NFO or RESET push button on the front panel of the Monitor The alarm relays will continue being activated until either 1 all measured gas concentrations fall below their user defined alarm level s or 2 the monitoring task is stopped this automatically closes the alarm relays Alarm Relay 1 Alarm Relay 1 correspond to High Alarm Limit 1 Whenever one or more gases exceed their alarm level s for high alarm limit 1 the Monitor breaks the electrical connection between pins 1 amp 2 and this activates the attached alarm system Alarm Relay 2 BE6028 14 Alarm Relay 2 correspond to High Alarm Limit 2 Whenever one or more gases exceed their alarm level s for high alarm limit 2 the Monitor breaks the electrical connection between pins 4 amp 5 and this activates the attached alarm system LumaSense supplies a 6 pin DIN plug male with a locking collar JPO600 for connecting external alarm devices to the alarm relay Caution The DC voltage across the relay contacts must not exceed 25V The potential on the relay contacts must not be more than 25VDC above chassis potential as this
81. as DI Gas interference on Gas interference on Gas interference on Gas interference on filters B to E filters A and C filters A B D filters A to C and 1 E 3434i SF6 Leak Detector LumaSense Technologies A S Page 150 of 191 Chapter 12 Fig 12 9 Illustration of the calibration data stored in the filter banks of filters A to E after a zero point calibration task Concentration D offset factor Humidity gain factor Gas conversion factor Gas interference on filters A B D and E Concentration offset factor Humidity gain factor Gas conversion factor Gas interference on filters A B D and E Concentration Concentration Concentration Concentration offset factor offset factor offset factor offset factor Concentration offset factor Humidity gain factor Gas conversion factor for gas A2 Gas interference on filters B to E Concentration Concentration Concentration Concentration offset factor offset factor offset factor offset factor Humidity gain factor Humidity gain factor Humidity gain factor Humidity gain factor Gas conversion Gas conversion Gas conversion Gas conversion factor for gas Al factor for gas B1 factor for gas C1 factor for gas D1 Gas interference on Gas interference on Gas interference on Gas interference on filters B to E filters A and C filters A B and filters A to C and 1 to E 1 E 1 E 1 12 6 Zero point Calibration To calcula
82. ave the necessary data to calculate absolutely valid calibration factors This situation could for example be caused by too much noise in the analysis chamber The calibration task will have to be repeated WATER VAPOUR MEASUREMENT lt OFFSET This message is associated with either 1 a span calibration of the water vapour filter or 2 a humidity interference calibration This message indicates that the signal measured with a particular filter when water vapour of Known concentration is in the analysis cell is less than the signal measured in the cell when zero gas is in the cell This could indicate either That the gas used during the zero point calibration of the filter was not dry or That the water vapour used during either the span calibration of the water vapour filter or the humidity interference calibration was not wet enough 3434i SF6 Leak Detector LumaSense Technologies A S Page 179 of 191 Chapter 13 BE6028 14 WET MEAS lt DRY MEAS FOR WATER FILTER and HUMIDITY INTERFERENCE FACTOR lt 0 Both these messages are associated with a combined zero point and humidity interference calibration task WET MEAS lt DRY MEAS FOR WATER FILTER HUMIDITY INTERFERENCE FACTOR lt 0 During the zero point calibration task the signal is measured when dry zero gas is in the cell this is a measure of the noise in the cell when a particular optical filter is used This measurement allows the concentration offset f
83. bration of this filter was correctly performed then this message could indicate 1 That you have entered the wrong concentration for the span gas in the span calibration set up 2 That the concentration of your span gas is not correctly quoted on its Analysis Certificate 3 That there is a leak in the tubing fittings in your calibration equipment which alters the concentration of the span gas reaching the cell HIGH CONC SPAN MEASUREMENT TOO LOW This message is associated with a two point span calibration task The above message indicates that the signal measured during span calibration when the high concentration of span gas is in the cell is less than 15uV This means that the high concentration of span gas is too low LOW CONC SPAN MEASUREMENT TOO LOW This message is associated with a two point span calibration task The above message indicates that the signal measured during span calibration when the low concentration of span gas is in the cell is less than 3uV This means that the low concentration of span gas is too low 3434i SF6 Leak Detector LumaSense Technologies A S Page 184 of 191 Chapter 14 Chapter 14 Warning and Error Messages July 2014 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 185 of 191 Chapter 14 BE6028 14 When the Monitor is switched on and while it is being operated the Monitor regularly performs a series of self tests which check t
84. copied into Block 2 of the Working Memory 3 The active values of the other set up parameters in Block 3 of the Working Memory are replaced by the factory set values defined in Block 3 of the Source Memory 3434i SF6 Leak Detector LumaSense Technologies A S Page 108 of 191 Chapter 9 4 The active values of the Optical Filter Parameters in Block 2 of the Working Memory are replaced by the values of the optical filter parameters in Block 2 of the Source Memory Note that under normal circumstances the data in these blocks is the same However to ensure that the data in these blocks is the same data is read from Source memory into the Working Memory during a FULL RESET of the Monitor 5 Those Filter Bank Nos which have been made active determine the calibration factors which will be found in Block 1 of the Working Memory after a FULL RESET of the Monitor If for example the active Filter Bank No chosen for all the filter A is no 1 then only the calibration data in files A 1 and W will be found in the Monitor s Working Memory after a FULL RESET This example is illustrated in Fig 9 4 Fig 9 4 The state of the Working Memory after a FULL RESET Source Memory 1 Calibration Factors 2 Optical filter 3 Other Set Up Parameters Set Up Parameters factory set values A B Cc D E 1 Calibration Factors from Active Filter Banks 2 Optical filter 3 Other Set Up Parameters Set Up Parameters A B C D E a factory set val
85. d there will be deleted To reduce the risk of accidental losing data from Display Memory a warning WARNING DISPLAY MEMORY WILL BE DELETED is displayed whenever a user attempts to perform an operation with the Monitor which will result in the deletion of data from Display Memory Data in Display Memory can be copied into the Monitor s Background Memory see Block 5 below to protect it against accidental deletion 3434i SF6 Leak Detector LumaSense Technologies A S Page 105 of 191 Chapter 9 Alternatively the data in Display Memory can be printed out by connecting a printer to the Monitor and transmitting data via the RS 232 interface port of the Monitor see Chapter 10 The storage space in Display Memory is finite Once this memory has been filled by data from a monitoring task any additional data collected will start to overwrite some of the data already stored there Block 5 Stored Measurement Data 9 1 4 BE6028 14 By selecting to STORE data when the Monitor is operating in Memory mode the user can copy data from Display Memory into Background Memory to protect data against accidental deletion from the Display Memory see section 9 3 1 for further details The storage space in Background Memory is finite and is exactly the same size as the storage space available in Display Memory see section 8 3 for further details Data which has been stored in Background Memory can be recalled to the Display Memory
86. d up to 7 times depending on the number of filters installed 22 Use the select push buttons to select the Text line Terminator 23 The text screen returns to the top of the set up tree Press SET UP to exit the set up tree If you want to set Alarm limits for the measured gases go to section 7 3 7 3 Setting up the Monitor s Alarm Levels BE6028 14 The alarm limits of a gas are those concentrations of gas which should activate any alarm relay connected to the Monitor via its back panel Alarm Relay socket There are two different alarm relays which function slightly differently Details of these relays and the way in which they function is described fully in section 5 5 The alarm level parameters are found in the Filters branch of the Set Up Tree Warning If the UA number for any filter is changed here then all the calibration data for that filter will be lost and the filter will need to be recalibrated 1 Press SET UP s3 53l The following text is displayed CHECK AND OR CHANGE SET UP FOR FILTER A NO YES 2 Use the select push buttons to ignore this filter or to select this filter if alarms are to be set 3 Press q 5 times until the following text is displayed GAS A HIGH ALARM LIMIT 1 mg m PRESS ENTER TO CHANGE VALUE 4 Use the direction push buttons to set the alarm concentration If you do not wish to activate the alarm function for a particular gas select
87. d with filter A can be compensated for any signal produced by water vapour s absorption of light from filter A VH20 during the span calibration task This means that your span gas does not have to be perfectly dry As the filter has already been zero point calibrated the cell noise Voffse when filter A is used is known and therefore the span calibration curve can be drawn see Fig 12 13 Fig 12 13 Curve showing a linear span calibration curve Single point Span Calibration of Filter A using span gas A Se V V total Ho Total signal in the cell V offset Gas Concentration 892010e Choosing a filter bank BE6028 14 If a filter e g A has already been calibrated to measure a gas e g Al and you wish to calibrate with gas Al again then select the filter bank containing the gas conversion factor for gas A1 Online users can do this when downloading the calibration factors Stand alone users should do this before setting up and performing the span calibration task The gas conversion factor calculated during the span calibration will then just overwrite the gas conversion factor calculated during the previous span calibration of the filter with this gas If you wish to span calibrate a filter to measure more than one gas then select a new filter bank each time you span calibrate with a 3434i SF6 Leak Detector LumaSense Technologies A S Page 160 of 191 Chapter 12 differe
88. e may in many instances be a range in which your values must lie These ranges can be found in the relevant sections of this manual Text you are able to type user defined text for example the names of the gases you are measuring and when using the PC the names of your databases The characters available to you when using the monitor on its own are shown in the table below Fig 6 1 The characters which are available for gas names Characters available for Gas Names A AaBbCcDdEeFfGgHhl iJ j KkKLIMmMNnOoPpQgRrSs TtUuVvXxYyZz_ amp 4 0 lt gt 123456789 AaBbCc etc Pre defined you are able to select a parameter using the select push buttons when there are three or less options or by scrolling through a pre defined list using the direction push keys The parameters in the lists are given in more detail in the relevant sec tions of this manual Current Time in the monitor is synchronized to match the time and date of the internal clock in the PC when the two are connected together However it is possible to adjust the monitors date and time using the front panel push buttons This is described in full in section 5 4 1 Stand alone Use Whenever you are choosing parameters and or entering parameter values via the front panel push keys two options are available SELECT HUMIDITY UNIT Tdew CANCEL DEFAULT BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Pa
89. e Homepage of the Monitor The homepage of the 3434i gas monitor can be displayed if the gas monitor is connected to a Ethernet network In section 2 5 1 it is explained how to set up the Ethernet parameters in the 3434i gas monitor Any web browser can be used to display the homepage of the gas monitor The IP address obtained from the Ethernet set up of the 3434i gas monitor can be entered in the address field of the web browser in order to display the homepage The last measured gas values are displayed together with information about the gas monitor like the device serial number if water and cross compensation is performed Error and warning messages see Chapter 14 for further details will also be displayed on the homepage The grey Update Measurements link can be used to update the homepage with the last measurement results 3434i SF6 Leak Detector LumaSense Technologies A S Page 22 of 191 Chapter 2 Fig 2 1 The 3434i gas monitor homepage Lumasense Photoacoustic Gas Monitor Windows Internet Explorer a oy x JS E htip 192 O F LUMASENSE TECHNOLOGIES Photoacoustic SF6 Leak Detector INNOVA 3434i Bal 9 x tumasense Photoacoustic Ga X ti Wg 23 Update Measurements Measurements Photoacoustic SF6 Leak Detector INNOVA 3434i Serial No 951 002 Humidity Compensation Yes Cross Compensation No Last measured values Time 08 43 58 A SF6 3 173E 03 ppm B _ es
90. e been completed the number n will also show 6 because the results of the first and second measurements have been overwritten by the 7 and 8 measurement results and so on 2 Let the Monitor continue measuring the zero gas until the temperature in the cell is stable Look at the print out of the average and standard deviation measurements for 1 the water vapour and 2 all the other filters When all these values have stabilised calibration measurements do not need to continue Continue to the next step 3 Press p This causes the following text to appear on the screen A p 5 28 V o 94 nV 6 38 4 C PRESS ENTER WHEN RESULTS ARE STABLE These results have been shown on the data log print out If they have stabilised continue to the next Step 4 Repeat step 3 until the signals measured with all the filters have been displayed stabilised and been accepted The text CALCULATI ON PLEASE WAIT appears on the screen The Monitor only uses the last six measurement results when calculating any calibration factor The concentration offset factors calculated during zero point calibration of the filters are related to the cell noise measured in the cell when each of the filters is being used If any calibration data is uncertain or unacceptable an error message marked by an asterisk will appear on the screen after the calibration factors have been calculated Whenever an asterisk is shown on the screen furthe
91. e eee eee eee eee eee eee tenet netted 116 TOL INtROGUCEION iig a e tees Ged ieee a e a a a a oada a aa 117 1072 Printerm Gables a a a A cee hit ohn te on E acl e E one a 117 10 3 Setting up Communication Parameters cc cece cece eee eee eee eee eee e teen e tates 118 10 4 Additional Parameters REqQUIred cc cece cece eee e rene eee eee tate eaten eee 123 10 5 Data LOGGING FUNCTION sis vevecteiainselsh toting a a ote stin a beak otic igak r Eo E SEEEN ETAG 124 10 6 Error Logging FUN CEON srra onurei a a a deeded aatinaaceceend acer 124 10 7 Printing out Data from the Monitor cc ccece cece eee eee eee neta teeta ene eae 125 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 2 of 191 Chapter 11 Maintenance of the 3434 cece eee een eee ened 126 11 1 Changing the Fine Air filters 2 0 0 0 ccc eee eee a ene eae e eats ate ea eee 127 11 2 Cleaning the Filter in the Ventilation Unit cece eee eee eee eens eae ee ea ene eae 132 11 3 Cleaning the Instruments zaari ncaa stink Pease aaa Sia ee ai eu lage Gea ee ed 133 Chapter 12 Calibration of the Optical Filters 0c cece eee teeta eee eae teeta ed 134 12 1 About the Installed Optical Filters cece eee eee eee eee eee eee eats eaten 135 12 2 What is Calibration and Why is it Necessary c cece cece e cence eee ee eee etna eae ee eae ne tani 136 12 3 Tasks Before Starting Any Calibrati
92. e following filter banks must be made active Filter bank no 3 4 or 5 for filter A Filter bank no 2 3 or 5 for filter B Filter bank no 2 3 or 4 for filter C Filter bank no 2 3 4 or 5 for filter D Suppose you make filter bank no 3 active for all the above filters and filter bank no 1 active for filter E Then after a zero point calibration the calibration data block would contain the information shown in Fig 12 9 None of the original calibration data has been overwritten by the newly calculated calibration factors Note 3434i only have an optical filter in position A Fig 12 8 Illustration of the calibration data stored in the filter banks of filters A to D before a zero point calibration task Concentration offset factor Humidity gain factor Gas conversion factor for gas CS Gas interference on filters A B D and E Concentration offset factor Humidity gain factor for gas B4 Gas conversion factor Gas interference on filters A and C Concentration offset factor Humidity gain factor Gas conversion factor for gas A2 Gas interference on ts B to E Concentration Concentration Concentration Concentration offset factor 5i offset factor Humidity gain factor Humidity gain factor Humidity gain factor Humidity gain factor Gas conversion Gas conversion Gas conversion Gas conversion factor for gas Al factor for gas BI factor for gas C1 factor for g
93. e select push buttons to define if you want to sample continuously _ _ If you select No S1 go to step 5 If you select Yes S3 go to step 6 The sampling interval is displayed Use the direction push buttons to change it to the correct value Use the select push buttons to define if you want to monitor for a pre set period If you select Yes go to step 7 If you select No go to step 8 The monitoring period is displayed Use the direction push buttons to change it to the correct value The MONITORING PERIOD is entered as Days Hours Minutes For example if this particular measurement cycle needs to be performed during 5 days 14 hours and 30 minutes the monitoring period should be entered as 5 14 30 The Monitor 3434i SF6 Leak Detector LumaSense Technologies A S Page 82 of 191 Chapter 7 will then automatically stop monitoring 5 days 14 hours and 30 minutes after the measurement cycle with this particular set up number is started The range of acceptable values and the default value of the monitoring period is shown in Table 7 8 Table 7 8 The range of acceptable values and the default value of the monitoring period Display Text Acceptable Values Default Value ENTER MONITORING days days PERIOD hours minutes hours minutes 0 00 01 to 7 00 00 0 01 00 The Monitor s Display Memory has finite storage capacity The data storage time available depends upon the number of gases
94. e to measure accurately Each filter in the carousel has to be fully calibrated before the Monitor can perform accurate gas measurements The practical calibration procedure is fairly simple it involves performing measurements with the Monitor while various gas supplies are at tached to its air inlet A full calibration of the water vapour filter SB 0527 involves Zero point calibration using a zero gas Span calibration using a known concentration of water vapour A full calibration of the optical filter in position A involves Zero point calibration using a zero gas Humidity interference calibration using water vapour Span calibration using a known concentration of the gas SF6 this filter is to measure The following sections explain what a calibration is and why it is necessary Some of the expressions used in this chapter are also explained to help you understand the process A zero gas is a gas which does not absorb infra red light e g pure Nitrogen BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 135 of 191 Chapter 12 What is Calibration and Why is it Necessary In order to understand calibration it is necessary to look at what happens inside the analysis cell during a gas concentration measurement A sample of air is drawn into the cell The cell is then sealed off and light is sent from the infra red source via a chopper to pulsate it through an optical filter The opt
95. ed as the time on the 24 hour clock for example 14 05 is five minutes after two in the afternoon Table 5 2 details the range of acceptable values and the default value of the date and time Table 5 2 The range of acceptable values and the default value of the date and time Display Text Acceptable Values Default Value ENTER CURRENT DATE 0000 01 01 0000 01 01 to 9999 12 31 2013 01 01 ENTER CURRENT TIME 12 47 00 00 to 23 59 12 00 If the Monitor is to be used as a stand alone instrument then the clock can be adjusted to your local time using the following instructions 1 Press SET UP Refer to the Set Up Tree diagram so that you can follow your progress through the various branches of this set up 2 Press S3 S1 SI S1 The following screen picture appears CURRENT DATE 2014 06 13 PRESS ENTER TO CHANGE VALUE 3 To change the date press 4 Use the direction push buttons to enter the correct date If you make a mistake press S1 to revert back to the original date 5 Press to accept the date This causes the text on the display screen to change to the following BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 65 of 191 Chapter 5 5 4 2 BE6028 14 CURRENT TIME 12 00 PRESS ENTER TO CHANGE VALUE 6 To change the time press p 7 Use the direction push buttons to enter the correct time
96. ed during the period of time the monitoring task has been performed MIN minimum concentration of gas A measured during the period of time the monitoring task has been performed ALARM 1 the user defined concentration of gas A which if measured by the Monitor will trigger a switch in the Monitor and activate an external alarm relay connected to it linear average or mean value of all the gas A concentrations measured during the period of time the monitoring task has been performed standard deviation of gas A s concentrations from the mean value m described above see section 8 1 for further details All numbers are written in the exponential form for example 14 5E 00 14 5 x 10 14 5 The concentration unit in this case is mg m3 as this was chosen in the active set up see section 4 3 2 3 Pressq A Sulphur Hexafluoride 972 06 mBar 2014 01 16 09 50 32 7 42 mg m3 A Sulphur Hexafluoride 972 06 mBar 2014 01 16 09 51 33 7 42 mg m3 As you can see the display provides the date and time at which the measurement was made and the concentration of gas A is given in the units mg m because this was the unit chosen for gas concentration in the active set up The dashed lines which appear after the time will be replaced by a number as soon as the monitoring task has been stopped see section 4 3 8 After scrolling through the list of individual measurement results for gas A the following text is displayed
97. ed in the MEASUREMENT set up branch see section 4 3 5 all measurement data collected during a monitoring task is stored in Display Memory together with the parameters which describe the task see section 4 3 4 Using the direction keys you can scroll through this data 1 After the monitoring task has been running for 10 15 minutes press q An example of the text which appears on the screen is shown below DATA IN DISPLAY MEMORY RECORDED FROM 2014 01 16 09 50 TO 2014 01 16 10 04 This screen text allows you to find out how long the monitoring task has been running here from 9 50 to 10 04 on the same day The date on the right hand side of the display indicates the time at which the last measurement cycle was completed while a monitoring task is in progress this date is of course constantly updated 2 Press q and then uset amp u until the following text appears on the display FILTER A USED TO MEASURE the name of the gas will appear here The displays which follow indicate the type of text which appears each time q is pressed ALARM 1 MIN 7 42E 00 s 2 36E 00 GAS A MAX 14 5E 00 8 03 00 While a monitoring task is being performed a running statistical analysis of the monitored gases vapours is made and the results are displayed as shown above where BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 46 of 191 Chapter 4 BE6028 14 MAX maximum concentration of gas A measur
98. eed prior to recalibrating For those of you who want to use the monitor as a stand alone instrument this chapter enables you to print out measurement data error logs and data logs If any error occurs during any of these operations a warning will be displayed All possible errors of this kind are listed in Chapter 14 The Monitor has four interface ports on its back panel the RS 232 port can be used for printing or the Ethernet port can be used to print to a terminal program like HyperTerminal This means that any standard text printer with a RS232 interface can be used to print out data from the Monitor Data can be printed out while the Monitor is operating using the Data logging facility This means that during a monitoring task or during a calibration task the Monitor will automatically send measurement results to the printer as soon as they are available Any operational errors or warnings that occur during a monitoring task can also be automatically printed out using the Error logging facility Alternatively when the Monitor is not being operated in any mode data can be printed out using the PRINT button Data can be printed out in three different blocks 1 Measurement this block contains the measurement data displayed on the Monitor screen during the printing operation it also provides the set up parameters for the displayed monitoring task see section 8 2 2 Set Up this block contains active set up parameters
99. emory In such a situation the date and time appearing after MONI TORI NG TASK STARTED will not be the same as the first date and time displayed on the screen labelled f in Fig 8 1 Using the direction push buttons and the average push button users can scroll through each page of stored data and in addition average gas concentrations over a pre defined averaging period The functions of the push buttons are described fully in Chapter 5 and can be summarized as follows AVERAGE When this push button is pressed the 3434i will average the measurement results which are stored in its Display Memory over the period of time Averaging Period specified in the FORMAT branch of the Set up tree see section 7 2 When the averaging function is operative the LED above the push button is lit only averaged measurement results are shown on the 3434i s display These averaged measurements may also be printed out while the averaging function is operative It is important to realise that when the averaging function is switched off the original measurement results will be shown again on the display An example of averaged measurements is given in section 7 2 3434i SF6 Leak Detector LumaSense Technologies A S Page 92 of 191 Chapter 8 Fig 8 1 Organisation of monitoring task data displayed on the monitor s screen EB identification of measurements DATA IN DISPLAY MEMORY RECORDED FROM stored in Display Memory 2011 06 10
100. en eee 69 Chapter 6 Keying in Parameters cc een t nent nena e nena 70 6 1 Ty pessof Parameters risora e aa a a a a EE aa aia a a A 71 Chapter 7 Setting up and Starting a Monitoring Task cceceec eect eee eee eee teen e eee na eee 74 ZE The Parameters Units on oc cccee eg soci ee bun ea oe abe adie eee oe Pace de ev bok de de eae decd a Ea 75 7 2 The Measurement Parameters c cece eee ene eaten teeta e nett neta eee 77 7 3 Setting up the Monitor s Alarm Levels ccecce eects eee eee eee e neta teeta ene eenes 85 7 4 Starting a Monitoring TaSk cece een ee tenet T EE 86 Chapter 8 Viewing Measurement Data Using the Monitor ccececeee eee ee ee cette eee ee teen eae 90 8 1 Displayed Monitoring Task Data cic eee eee rene etna teen t nena eee 91 8 2 Printed Monitoring Task Data c cic ener ene teeta e nent neta teeta nies 96 8 3 Storage Space in the Display Memory cece eee eee eee eae eae tae ne tate tates 99 Chapter 9 Storage of Data in the Monitor s Memory cceee eect e eee eee eee eee eee eee ened 100 9 1 Types of Memory in the Monitor c cece eee eee eterna ene naeee 101 9 2 Storage of Measurement Results ccc eee ener e nents 109 9 3 Management of Data in Background Memory ceceeeee eee eee eee eee teen e neta nae e nates 112 Chapter 10 Using a Printer with the MOonitor ccccccce cec
101. en on page 2 of the Product Data Sheet see boxed in text and schematic diagram of the measurement system of the Monitor Measurement Cycle is the term used to describe everything that takes place in the Monitor from the time the pump starts to flush out the old gas sample in its analysis cell until the signal in the measurement chamber has been measured using the last relevant optical filter The time taken to complete a measurement cycle is dependent upon the following factors The sample integration time selected longer measurement times provide greater accuracy The flushing times selected for the measurement chamber and the tube as well as the length of the sampling tube attached to the Monitor s air inlet the longer the tube the more time is needed to flush it out between measurement cycles The cleanliness of air filters which filter the air drawn into the cell this affects the pumping time required to draw a fresh air sample into the analysis cell The degree of fluctuation in the concentration of the gas measured in consecutive measurement cycles this affects the time required to adjust the gain of the amplifier attached to the microphones Table 4 1 gives some indication to the measurement times depending on the number of gases measured and the measurement times selected However these times may vary from one measurement 3434i SF6 Leak Detector LumaSense Technologies A S Page 31 of 191 Chapter 4 4 1
102. ense Technologies A S Page 44 of 191 Chapter 4 ACTIVE TASK MONITORING TASK NUMBER 1 START TASK DELAYED TASK CHANGE TASK 5 Press S1 to start the monitoring task The following warning then appears on the display WARNING DISPLAY MEMORY WILL BE DELETED PROCEED STOP Display Memory is where the Monitor stores the results of all measurements while it is performing a monitoring task If the monitoring task is stopped and then started again all the data already collected will be deleted from Display Memory However the data in Display Memory can be copied into and stored in the Monitor s Background Memory This operation is described in section 9 2 6 Press s1 The following text then appears on the screen MEASUREMENT IN PROGRESS RESULTS NOT YET AVAILABLE 7 When the first measurement cycle is complete the Monitor will automatically display the results and update them every time a new measurement cycle is completed An example is shown below BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 45 of 191 Chapter 4 This display gives the overview of the gas vapour concentrations last measured in this case the concentration of gas A and humidity of the water vapour are in the units that were selected that is mg m for gas A and Tdew for water vapour see section 4 3 2 4 3 7 Displaying Measurement Results while a Monitoring Task is in Progress If store measurement history is select
103. error log automatically The procedure is as follows 1 Press the following sequence SET UP S3 1 S1 and the following text is displayed SELECT GENERAL SET UP BRANCH CLOCK SOUND TESTS 2 Press S3 q q S3 SET UP This activates the error logging function BE6028 14 34341 SF6 Leak Detector LumaSense Technologies A S Page 124 of 191 Chapter 10 10 7 Printing out Data from the Monitor Before data can be printed out from the Monitor the communication parameters must be checked changed This is explained in section 10 3 1 for RS 232 communication and in section 10 3 2 for the Ethernet communication The text line terminator must be set see section 10 4 before printing can proceed It is also necessary to define the averaging period if the AVERAGE option is selected Setting the Data Logging function is described in section 10 5 10 7 1 Starting a Print out Press PRINT and then one of select push buttons 1 2 or 53 depending on which data block you wish to print out 10 7 2 Stopping a Print out which is in Progress If a print out is in progress and you wish to stop it then the following steps need to be followed 1 Press the PRINT button on the Monitor s front panel The following text will appear on the display PRINT ABORTING PLEASE WAIT The printer will stop printing data
104. es all data stored in this memory 1 A defective back up battery 2 A defective Working memory RAM this Memory 3 A software fault 1 A defective back up battery 2 A defective Working Memory RAM 3 A software fault MEMORY SET TO DEFAULT ERROR DETECTED IN INTERNAL MEMORY An error has been found in the data stored in the Monitor s internal memory data stored in this memory cannot be read or altered by the user so the Monitor automatically corrects any errors found in this memory 1 A defective back up battery 2 A defective Working Memory RAM 3 A software fault MEMORY SET TO DEFAULT ERROR DETECTED IN SOURCE MEMORY An error has been found in the data stored in the Monitor s source memory so the Monitor automatically gives stored parameters default values 1 A defective back up battery 2 A defective Source Memory EEPROM 3 A software fault PARAMETERS SET TO DEFAULT ERROR DETECTED IN CONFIG FORMAT PARAMETER An error has been found in the value parameters stored in the Configuration and or Format branches of the Monitor s set up tree and therefore the Monitor has automatically given these parameters default values 1 A defective back up battery 2 A defective Working Memory RAM 3 A software fault PARAMETERS SET TO DEFAULT ERROR DETECTED IN THE TASK SET_UP PARAMETER An error has been found in the value parameter stored in the
105. et up a monitoring task using the optical filters which has been installed In the 3434i gas A that is to measure gas A s concentration using the UA0988 optical filter installed in position A of the filter carousel and water vapour The parameters which describe the monitoring task we shall set up are listed below 3434i SF6 Leak Detector LumaSense Technologies A S Page 41 of 191 Chapter 4 1 Press Monitoring Task Set up Number 1 Sampling Continuous Monitor for pre set period No Compensate for Water Vapour Interference Yes Compensate for cross interference No Measure Gas A XXXXXX Yes Measure Water Vapour Yes Note flushing is set in Environmental Parameters section 4 3 3 and the S I T s are set up in the Filters setup section 12 3 3 Stand alone Settings SET UP S1 and then SI This brings you into the Monitoring Task branch of the Set Up Tree where the following text is displayed MONITORING TASK SET UP NUMBER 1 PRESS ENTER TO CHANGE VALUE Up to 10 different monitoring tasks can be set up while operating the Monitor in Set up mode The parameters describing these tasks are automatically stored in the memory of the Monitor 2 If the number on the display is already 1 then press q to accept the value If the number is not 1 a b Press Press and use the direction keys to change its value to
106. evious amp Next Displays respectively The number increase and decrease functions are used whenever values which can be changed manually are displayed on screen for example changing a parameter such as the length of sampling tube The Previous Display and Next Display functions are used when you want to view the previous or next screen texts This can be useful when setting up the monitor By using these push buttons you can scroll quickly through a branch of the Set Up Tree These push buttons can also be useful when viewing measurement data for example if you are looking at gas A s measurement result no 3 by pressing A gas A s measurement result no 2 will be shown on the screen By pressing WV gas A s measurement result no 4 will appear on the display screen lt amp gt enable you to move across number fields or go to the Previous amp Next gases respectively When you are entering values or names in the monitor for example when setting up the monitor you can use these push buttons to move the cursor across the entry fields Previous Gas amp Next Gas functions are used primarily when viewing measurement data The display screen only displays the measurement data for one gas at a time These push buttons allow you to look at the measurement data for the gas and water vapour see Fig 4 4 and section 4 3 9 Depending on the situation this push button acts as either an Enter
107. f span gas and then the total signal in the cell Vhigh is measured with a high concentration Chigh Of span gas This enables the Monitor to compensate for any un linearity in the relationship between the signal measured in the cell and the concentration of the gas in the cell this is illustrated for a gas Al in Fig 12 14a Here are some guidelines about the concentration of gas you should use during a two point span calibration The Low Concentration should be 10 to 30 of the highest concentration you expect to measure If the desired measurement range is mainly within the linear range then the low concentration should be between 1000 and 10 000 times the detection limit If the desired measurement range is mainly above the linear range then the low concentration should be more than 10 000 times the detection limit The High Concentration should be 75 to 100 of the highest concentration you expect to measure but no higher than this Simple Test to Determine the Linearity BE6028 14 Let us assume that you wish to measure a gas over a dynamic range from 100 ppm and 3000 ppm of a gas that has a detection limit of 0 3 ppm In this case the range in which you want to measure is from 333 times to 10 000 times the detection limit With our general guidelines you re not able to decide whether you have to perform a single or two point calibration Therefore we advise you to perform the following test 1 Perform a single
108. f the blocks of data stored in the Working Memory the Monitor will automatically set the parameters in the relevant compartment s to their default values and the Monitor will send the following message on its display screen WARNING MEMORY SET TO DEFAULT ERROR DETECTED IN XXXXX MEMORY Where XXXXX denotes the part of the memory that has been affected When such a message is received users must check the contents of the relevant memory to find out which data has been affected before continuing to operate the Monitor 3434i SF6 Leak Detector LumaSense Technologies A S Page 62 of 191 Chapter 5 5 3 3 Response of the Monitor after a Partial Reset The way in which the Monitor responds after a partial reset is dependent upon the way it was being operated at the time of the partial reset see Table 5 1 For example if the Monitor was busy taking a measurement when it was partially reset it will complete the interrupted measurement after the partial reset continue its monitoring task and make a special mark alongside the first complete measurement cycle it performs after the reset These marks are described in section 8 2 2 and section 8 2 3 Table 5 1 Dependence of Monitor s response after a partial reset to its operating condition at the time of the partial reset Monitor last Task being Task started after a used while in performed PARTIAL RESET Measurement A gas measurement Completes the monito
109. factor You can find out why there is uncertainty about the validity of the calibration factor by pressing INFO The messages displayed when I NF is used are discussed in section 13 4 ZERO POINT CALIBRATION SUCCESSFUL HUM INTERFERENCE CALIBRATION SUCCESSFUL ZERO POINT HUM INTERF CALIB SUCCESSFUL GAS X SINGLE POINT CALIB SUCCESSFUL GAS X TWO POINT CALIBRATION SUCCESSFUL 3434i SF6 Leak Detector LumaSense Technologies A S Page 178 of 191 Chapter 13 13 4 13 4 1 BE6028 14 Invalid Calibration Messages The messages listed below indicate 1 that the calibration factor calculated during the calibration task you have just performed is not valid and therefore has not been stored in any filter bank and 2 that the calibration task must therefore be repeated ZERO POINT CALIBRATION INVALID HUM INTERFERENCE CALIBRATION INVALID ZERO POINT HUM INTERF CALIB INVALI D GAS X SINGLE POINT CALIB INVALID GAS X TWO POINT CALIBRATION INVALID Error Messages Displayed when the INFO button is used All successful or invalid calibration messages are marked with an asterisk which tells you that more detailed information about the calibration can be obtained by pressing INFO The messages displayed when is pressed are listed and explained below Invalid Error Messages MISSING MEASUREMENT DATA This message indicates that the Monitor does not h
110. from this task in the Background Memory let us say it is stored in location 4 Background Memory is now 100 full see Fig 9 5 The Background Memory has now been filled up by the data from the four monitoring tasks described above even though location nos 5 10 inclusive has not been used The user will not be able to STORE any more data in Background Memory because there is no space available for it Data in Background Memory can however be deleted to make space for the storage of new measurement results see section 9 3 3 Fig 9 5 Storing data from 4 different consecutive measurement tasks in the Background Memory Monitoring Task No 1 20 DISPLAY MEMORY Monitoring Task No 2 30 Monitoring Task No 3 40 Monitoring Task No 4 STORE BACKGROUND MEMORY LOCATIONS S USED 20 OF MEMORY USED TIME 10 14 LOCATIONS S USED 50 OF MEMORY USED TIME 12 16 LOCATIONS S USED 1 2 3 90 OF MEMORY USED TIME 16 18 LOCATIONS S USED 1 2 3 4 100 OF MEMORY USED TIME 08 20 3434i SF6 Leak Detector LumaSense Technologies A S Page 111 of 191 Chapter 9 Whenever the Monitor is operating in Memory mode the user can by pressing the INFO push button find out what percentage of the Background Memory is occupied and which location numbers have been used to store data Fig 9 5 illustrates the status information one can obtain from the Monitor during various stages of the four monitoring tasks described above Fu
111. garding this procedure 3434i SF6 Leak Detector LumaSense Technologies A S Page 25 of 191 Chapter 3 Chapter 3 Philosophy of Operation July 2014 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 26 of 191 Chapter 3 The monitor has several essential operational features which enable you to operate it without undue reference to this Instruction Manual The main features of the monitor which ensure its simple and easy operation are listed below The fully comprehensive Software BZ7002 and BZ7003 The LumaSoft Gas Single Point 7810 application software The short self explanatory texts which appear in the monitor display when the monitor is being used give operational guidance to the user The small light emitting diodes at some of the push buttons allow the user to identify how the monitor is operating at any particular time Audible warnings beep if any push buttons are used in the wrong way 3 1 PC Use Online BE6028 14 A monitoring system where you use the PC environment to set up the monitor prior to measuring display measurement data on the PC screen while monitoring and store the measurement results directly on the PC s hard disc The LumaSoft Gas Single Point 7810 application software is used for making online measurements The measurement results can be used by other programs that fetch data from the SQL Server Express database server featured by the 7810 application A manual BE
112. gas name appears here NO YES NO SINGLE POINT TWO POINT using span gas of known concentration GAS CONC PRESS ENTER TO CHANGE VALUE HIGH GAS CONC PRESS ENTER TO CHANGE VALUE This display ONLY appears if you have selected to perform zero point calibration of filters installed in positions A to E CALIBRATE WATER VAPOUR FILTER NO YES PERFORM WATER VAPOUR ZERO POINT CALIB NO YES using perfectly dry zero gas PERFORM WATER VAPOUR SPAN CALIBRATION NO YES WATER VAPOUR CONC PERFORM PRACTICAL CALIBRATION TASK PRESS ENTER TO CHANGE VALUE NO YES using zero gas containing an accurately known concentration of water vapour Before setting up a calibration task make sure that the filter bank you make active for the filter which have already been calibrated only contain calibration factors which need to be up dated In this way you can prevent your original calibration factors being overwritten by the new ones To illustrate this imagine that filter 3434i SF6 Leak Detector LumaSense Technologies A S Page 149 of 191 Chapter 12 BE6028 14 A is installed in your Monitor and have been calibrated Suppose the calibration data block of your Monitor contains the information shown in Fig 12 8 notice no filter is installed in position E Suppose You now install an optical filter in position E This filter has to be fully calibrated Before performing a zero point and humidity interference task one of th
113. ge 71 of 191 Chapter 6 BE6028 14 CANCEL This option appears over the S1 select push button If you change the value of a parameter on the display screen and then decide that the new value is not correct the original parameter can be brought back to the screen by pressing S1 Default This option appears over the 53 select push button If you wish the parameter appearing on the display screen to be the same as the factory defined value you can press 53 Some parameters do not have pre defined default values so that when Default is used a blank line will appear instead of a number The default value of such a parameter is said to be blank For example GAS A S HIGH ALARM LIMIT 1 ppm CANCEL DEFAULT If the value of a chosen parameter lies outside the pre defined minimum and maximum values the value will be corrected and at the same time a beep will sound You will then have to enter the correct value by pressing and repeating the process When you have to choose or change a parameter and the text PRESS ENTER TO CHANGE VALUE is displayed use the direction push buttons and follow the procedure below Details about the direction keys are provided in section 5 2 1 Press A cursor will blink under one of the parameter s numbers or letters and the bottom line will display the soft keys Cancel and Default 2 Use p and q to change the entry above
114. ging period of T min is calculated using the following mathematical equation 3434i SF6 Leak Detector LumaSense Technologies A S Page 95 of 191 Chapter 8 Cry 2 linear average of all the measurements made during N the averaging period Where Cn constant concentration measured at time Tn N the total number of measurements performed during the averaging period T min In the situation where the total monitoring period is the same as the averaging period then the averaged value of the last performed measurement will be the same as the Mean Value u shown on the display screen see in Fig 8 1 8 2 Printed Monitoring Task Data BE6028 14 Fig 8 1 illustrates how data from a monitoring task is displayed on the Monitor s screen When monitoring task data appearing in Display Memory is printed out the same information appears but it is presented in a different format An example of a monitoring task data print out is shown in Fig 8 3 Chapter 10 describes how this is done Fig 8 3 Print out of monitoring task data 34341 Measurement Data 951 00279441 2014 02 28 09 22 Page 1 34341 Settings Compensate for Water Yap Interference YES Compensate for Cross Interference NO Sample Continuously YES Pre set Monitoring Period NO Store Measurement History NO Measure Gas A SF6 5 YES Water Vapour YES Flushing Mode AUTO Sampling Tube Length 0 00 m Normalization Temperature Q
115. gnal of 8uV when Filter A is used Measurements made during humidity interference calibration of the installed filters therefore enable the Monitor to compensate any measured signal for water vapour s interference Tasks Before Starting Any Calibration Before starting any kind of calibration task there are several operations which need to be performed Obtaining a Print out of Calibration Data in the Monitor Whether the Monitor is to be used online or as a stand alone instrument the Calibration Software BZ7002 can be used to check the Monitor s existing calibration Please refer to User manual BE6034 Stand alone Use 12 3 2 BE6028 14 With the monitor connected to a printer details are given in Chapter 10 Press PRI NT and then S3 To stop printing press PRI NT again Checking the Calibration of Each Installed Optical Filter A print out of the calibration data in the Monitor s memory is useful to have for reference It also enables you to find out how old 3434i SF6 Leak Detector LumaSense Technologies A S Page 138 of 191 Chapter 12 BE6028 14 calibration factors compare with the new calibration factors calculated during re calibration tasks see section 12 3 1 Fig 12 3 illustrates only part of a typical calibration data print out Note that there are five different filter banks which contain calibration data These banks are numbered from 1 to 5 This enables eac
116. h filter to be calibrated to measure up to 5 different gases Before the filter is calibrated to measure any one particular gas you have to inform the Monitor about where you wish to store the calibration data for this gas The number of the filter bank chosen when operating in Set Up mode is called the active filter bank see Chapter 9 When checking the optical filter using the front panel push buttons Chapter 10 provides details of how to obtain a print out of calibration data using a printer with an RS 232 interface Note that calibration data in the active filter bank is always printed out directly after the optical filter factors data and this data is also shown under the heading CALIBRATION DATA IN FILTER BANK X where X is the number of the filter bank Note all calibration factors are expressed as exponential numbers For example 104 05E 3 this is the same as the number 104 05 x 10 3 0 10405 1 Refer to your calibration data print out and check the following information a Under the heading GENERAL CALI BRATION INFORMATION FOR FILTER A check that the UA number of the installed optical filter is UA0988 the same as the UA number appearing on the Calibration Chart for the optical filter in position A Under the headings CALIBRATION DATA IN FILTER BANK 1 CALIBRATION DATA IN FILTER BANK 2 CALIBRATION DATA IN FILTER BANK 3 CALIBRATION DATA IN FILTER BANK 4 and CALIBRATION DATA IN FILTER BANK 5 check the fol
117. hat the various mechanical electrical and electronic components of the Monitor are functioning correctly These self tests are described in more detail in Chapter 5 You can select to disable the regular self tests if desired see section 5 4 3 If any component is found to be functioning outside of its specifications either a Warning or a Operating error message will appear on the gas monitor s screen Please note A Warning and or Operating error message will only be displayed once If the fault is still found to be present during the next regular self test the message will not be displayed again Messages are only displayed when a fault is first detected If the fault corrects itself and then is later found to be faulty the message will be displayed again It is therefore important to note the message before pressing the I NFO button which will cause the error message to be removed from the display Although the message is removed from the screen any gas measurements performed while the fault is still present will be marked with an asterisk By pressing INFO when such a measurement is displayed the Common mark O and or W and in some cases the Gas Mark F and Gas Mark A will be shown on the display On the following pages all possible Warning messages are listed all possible Operating errors messages are listed and all possible Interface error message
118. hen taking delivery of the 3434i SF6 Leak Detector five very important and preliminary tasks must be completed before starting to operate it Install the BZ7002 Calibration Software to enable operation Back up of the calibration file supplied with the instrument if calibrations are performed by LumaSense Technologies A S Connect the Monitor to a PC see section 2 1 Check Change the fuses in the monitor see section 2 2 Set the Communication parameters USB see section 2 3 RS232 see section 2 4 Ethernet see section 2 5 Set up the password protected user levels see section 2 6 2 1 Connecting the Monitor to the PC 2 1 1 2 1 2 BE6028 14 The monitor comes complete with a USB interface cable The maximum length of an USB cable is 5 meters USB extension kits can be used to extend the USB connection to 30 meters The gas monitor can also be connected to a PC using a 9 pin to 9 pin null modem RS 232 interface cable optional accessory WL950 003 Finally the monitor can be connected to a PC using the Ethernet network connection Fitting the RS 232 Cable Ensure that both the monitor and the PC are switched off at the mains Failure to do so may result in your equipment being damaged Locate the serial port at the back of the PC refer to your PC manual if in doubt Push the connector on the RS 232 cable on to the serial port socket and secure it firmly using the securing screws Locate the output labelled
119. ic system is not airtight 1 Module hardware error 2 Fault in MODULE STATUS ERROR DETECTED At least one of the communication modules is not functioning cable as expected 3 Wrong module version 4 Fault in the data configuration of the module BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 190 of 191 34341 LumaSense Technologies A S Tel 45 44 20 01 00 L UMASENSE Energivej 30 Fax 45 44 20 01 01 TECHNOLOGIES DK 2750 Ballerup Denmark http www lumasenseinc com
120. ical calibration task If you answer YES to PERFORM GAS SPAN CALIBRATION then you can choose 1 whether this calibration should be a single point or a two point span calibration The concentration conversion factor calculated during span calibration for a par ticular gas using a particular filter is stored in the filter bank no which is active during the calibration procedure Retaining Existing Calibration Factors In some case you may wish to keep the calibration factors already present in your monitor If this is the case use the following instructions BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 148 of 191 Chapter 12 BE6028 14 Fig 12 7 Schematic diagram showing the calibration task Set Up Tree general PERFORM ZERO POINT CALIBRATION All installed filters A to E will be zero point calibrated NO using dry zero gas PERFORM HUM INTERFERENCE CALIBRATION All installed filters A to E will be calibrated for interference from water vapour NO YES using wet zero gas If only ONE filter A B C D E is installed in the carousel this display does not appear in the calibration set up PERFORM CROSS INTERFERENCE CALIBRATION All installed filters A to E will be calibrated for cross interference from the other span gases used during span NO YES calibration using span gases of known concentration PERFORM GAS SPAN CALIBRATION CALIBRATE A WITH
121. ical filter only transmits light in a defined wavelength range and this light enters the cell If there is a gas in the cell which absorbs light of this wavelength a pressure wave is created and this is measured by the microphones mounted within the cell The greater the concentration of the absorbing gas in the cell the greater the pressure Sound wave it creates How do we measure the relationship between the measured sound signal and the concentration of the absorbing gas in the cell We calibrate the optical filter Our description of what happens in the cell is however a little too simplified In reality we have to take three other factors into consideration namely 1 cell noise 2 the presence of water vapour in the sample humidity interference Fig 12 1 High resolution absorption spectrum of water vapour 2 5 2 9 3 3 4 0 5 0 6 7 10 wavelength um absorption 4000 3500 3000 2500 2000 1500 1000 cm wavenumber Cell Noise BE6028 14 When there is zero gas in the cell that is a gas which does not absorb any infra red light a signal is measured in the cell This signal is due to what is termed cell noise Cell noise is created by the imperfect reflection of infra red light from the cell walls It is dependent upon the properties of the cell itself for example its dimensions and the reflectivity of its walls as well as the wavelength and thus energy of the infra red light which is incident on
122. iece directly into the Monitor s analysis cell Water will seriously damage the cell To avoid such a situation we suggest that the wet air from the water bath outlet tube is fed into an extra empty flask before being fed to the air inlet of the Monitor Note the length of the 3434i SF6 Leak Detector LumaSense Technologies A S Page 146 of 191 Chapter 12 respective tubes in the flasks It is vitally important that any water which collects in the extra flask does not cover the short outlet tube B It is very important that the concentration of water vapour used is below the saturated water vapour pressure of the air in the room where calibration is being performed otherwise water vapour will condense out in the analysis cell In practical terms this means that The Monitor must have time to reach the ambient temperature of the room before a calibration task is performed The temperature of the water bath you use should be at least 2 C below the ambient temperature of the room where calibration is to be performed So if your ambient temperature is 20 C make sure that the temperature of the water bath you use is set at a maximum of 18 C Fig 12 6 Schematic diagram of the equipment necessary to produce a supply of clean wet air ke gt outlet tube B A To flow vapour meter from zero gas supply Y piece 12 5 BE6028 14 A outlet tube A To the Cf Be AP monitor water at a empty A constant flas
123. in the fashion described in Table 5 1 FULL Reset If this level of reset is chosen the Monitor responds by changing the text on the display so that you have a chance to confirm that you wish the Monitor to perform a FULL reset PERFORM FULL RESET si 53 By pressing this push button the user can come out of reset mode without performing any kind of reset The Monitor just goes back to operating the same way it was operating before RESET was pressed By pressing this push button the user confirms that a FULL reset is required During a FULL reset the Monitor performs the following two tasks Clearing emptying all data from its Working Memory This means all data in Display Memory and Background Memory will be lost Copying data from its Source Memory into its Working Memory This means that set up parameters in block 3 of Working Memory Other Set up Parameters will be given their default values and the values of the optical filter set up parameters in Working Memory will be the same as those found in Source Memory 5 4 Configuring the Monitor 5 4 1 Setting the Clock Before dispatch from the factory the internal clock of the Monitor is set to the correct local Danish time BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 64 of 191 Chapter 5 The current date is entered as Year Month Day for example the 24 of July 2014 is entered as 2014 07 24 The current time is enter
124. ing cross interference calibration not valid for 3434i only one optical filter is installed 3434i SF6 Leak Detector LumaSense Technologies A S Page 102 of 191 Chapter 9 BE6028 14 Fig 9 1 Schematic diagram showing the structure of the Monitor s memory Source Memory 1 Calibration Factors 2 Optical filter 3 Other Set Up Parameters Set Up Parameters is Os 1 E e E Er Lap LS LS py 2 GH SH New active values factory set values A B RE Cc 1 D E Set Up of CALIBRATION TASK Optical Filter Parameters 1 Calibration Factors from Active Filter Banks 2 Optical filter 3 Other Set Up Parameters Set Up Parameters oo amp oo New active values active values 7 of other Set Up Parameters 4 Background Memory i 5 Display Memory data copied from storage of Display Memory measurement results Working Memory Before calibrating a particular filter one of the filter s banks is made active by operating the Monitor in Set Up mode and entering the chosen filter bank number for the filter being calibrated The filter bank No which is made active before the filter is calibrated is the filter bank where the Monitor will store calibration factors calculated during calibration This means that the user is able to calibrate any particular optical filter to measure up to five different gases If a particular filter is to measure more than one gas it is therefore necessary to span calibrate it
125. is location uses Tone dialing Pulse dialing Lox oe BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 121 of 191 Chapter 10 4 Press Yes to continue HyperTerminal Before HyperTerminal can dial or make connections you must 5 Press OK to continue Connect using TCP IP Winsock and enter the IP Address of the gas monitor as the Host address Press OK to continue Connect To 192 168 0 85 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 122 of 191 Chapter 10 6 You are now able receive printed output from the gas monitor in the terminal window that you have just created Below is shown a measuring task session of oix Edit View Call Transfer Help File O Data Logger Measurement Started 01 11 32 34 81 0E 03 952E 03 117E 03 10E 03 105E 03 2 4E 03 01 11 33 09 423E 3 1 01E 00 112E 03 9 9E 83 95E 03 2 4E 03 Data Logger Measurement Finished SCROLL CAPS NUM Capture Print echo 10 4 Additional Parameters Required The other output parameters which determine the format of print outs are shown in Table 10 2 together with available choices and factory default values Table 10 2 Parameters which determine the format of print outs from the monitor Display Text Acceptable Default Values Value PRINT EACH GAS No Yes Yes if print each gas is no PRINT No Yes No
126. its walls 3434i SF6 Leak Detector LumaSense Technologies A S Page 136 of 191 Chapter 12 As it is the optical filter which determines the wavelength of light cell noise will depend upon the optical filter being used The cell noise signal is measured during the Zero point Calibration of each filter A supply of dry zero gas is attached to the air inlet of the Monitor and the signal in the cell is measured with the installed optical filter A This signal is called the concentration offset factor for the filter Whenever the filter is used this signal is subtracted from the total measured signal as it is not related to the concentration of any gas Presence of Water Vapour BE6028 14 Water vapour is nearly always present in ambient air and it absorbs infra red light to a greater or lesser extent at nearly all wavelengths see Fig 12 1 This means that no matter which optical filter is transmitting light into the cell the water vapour in the cell will absorb some of this light and create a signal This signal is said to interfere with the signal produced by the gas we wish to measure with this filter Fig 12 2 Schematic diagram showing the relative absorption of water vapour by different optical filters Wave number cm 3500 2000 1500 1000 Water vapour filter a vo Q S Z ra lt Filter A FilterC Filter D 2 3 4 5 6 7 8 9 10 11 12 13 Wavelength m 893309e How is this interference measu
127. k temperature to act as a safety valve 893265_le General Settings Stand alone Use Before a practical calibration task can be started the monitor has to be informed about the kind of calibration task you wish it to perform This is done using the push buttons on the front panel of the Monitor The Calibration Task Set Up Tree is illustrated in Fig 12 7 It should be used to help you follow the path through the different levels of the 3434i SF6 Leak Detector LumaSense Technologies A S Page 147 of 191 Chapter 12 12 5 1 calibration set up The calibration tasks are set up while operating in Measure mode Notice the following 1 Before starting to set up a calibration task you must make sure that you choose the correct FILTER BANK NO to store the calibration factors which will be calculated during calibration see section 12 3 3 If you answer YES to PERFORM ZERO POINT CALI BRATI ON then the installed optical filters A will be zero point calibrated and the concentration offset factor for the filter will be stored in the filter bank no which is active for that filter during the practical calibration task If you answer YES to PERFORM HUM INTERFERENCE CALI BRATION then the installed optical filters A will be calibrated for humidity interference and the humidity gain factor for the filter will be stored in the filter bank no which is active for that filter during the pract
128. l available storage space Therefore it will not be possible to store any data from any new monitoring task in Background Memory unless the data already stored there is first deleted see section 9 3 3 To illustrate the variable size of each location let us suppose that the following monitoring tasks are performed Task No 1 The data collected in Display Memory occupies 20 of the total capacity of the Display Memory The data can be stored in Background Memory provided that the data already stored there occupies less than 80 of the total capacity of the Background Memory However let us suppose that the Background Memory is empty and that we STORE the data from this monitoring task in location 1 of Background Memory This means that Background Memory is now 20 full see Fig 9 5 Task No 2 The collected data occupies 30 of the total capacity of the Display Memory Let us suppose that we STORE the data in location 2 of Background Memory This means that Background Memory is now 50 full see Fig 9 5 Task No 3 The data occupies 40 of the total capacity of the Display Memory Let us suppose that we STORE the data from this task in location 3 of Background Memory Background Memory is now 90 full see Fig 9 5 3434i SF6 Leak Detector LumaSense Technologies A S Page 110 of 191 Chapter 9 BE6028 14 Task No 4 The data occupies 10 of the total capacity of the Display Memory Let us suppose that we STORE the data
129. lowing information b Zero point calibration performed if a date appears here year month day this is the last time the zero point calibration data in this filter bank was updated c Concentration offset factor if a number appears here this means that this filter bank contains calibration data obtained during a zero point calibration of filter A d Hum Interference Calibration performed if a date appears here year month day this is the last time the 3434i SF6 Leak Detector LumaSense Technologies A S Page 139 of 191 Chapter 12 BE6028 14 humidity interference calibration data in this filter bank was updated e Humidity gain factor if a number appears here this means that this filter bank contains calibration data obtained during the humidity interference calibration of filter A f If the following three conditions are found in any filter bank Gas name if the name which appears here is the same as the name of the gas you intend to measure with filter A Span Calibration performed if a date appears here and Conversion factor a number appears here Then this filter has been properly span calibrated with the named gas The filter bank containing this calibration data is the filter bank which has to be made active when filter A is to measure this named gas g However if the Gas name is given as Gas UA number then the filter has only been checked to see that it is functioning correct
130. ly it has not been span calibrated to measure the gas you wish to measure 2 Under the heading GENERAL INFORMATION FOR WATER FILTER ACTIVE CALIBRATION DATA check the following information a Zero point Calibration performed if a date appears here this is the last time the water vapour filter was zero point calibrated b Concentration offset factor if a number appears here this means that the water vapour filter has been zero point calibrated C Span Calibration performed if a date year month day appears here this is the last time span calibration of the water vapour filter was performed d Conversion Factor if a number appears here this means that the water vapour filter has been span calibrated When the water vapour filter has been zero point calibrated and span calibrated it is able to measure the absolute concentration of water vapour in any gas sample in the analysis cell of the Monitor and it requires no further calibration 3434i SF6 Leak Detector LumaSense Technologies A S Page 140 of 191 Chapter 12 12 3 3 BE6028 14 When the installed optical filter has been zero point humidity interference and span calibrated then the Monitor is able to perform accurate measurements Fig 12 3 Part of a calibration data print out 34341 Calibration Data 951 002 9441 2014 02 28 09 31 Page 1 GENERAL CALIBRATION INFORMATION FOR FILTER A Installed Optical Filter UAG988 Active Filter Bank Number OP
131. m level 16 All the parameters for Filter W are fixed except for the Sample Integration Time and the two high Alarm limits BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 143 of 191 Chapter 12 12 3 4 12 3 5 12 4 BE6028 14 17 Press and use p and q to display the desired Sample Integration Time 18 Repeat step 13 and 14 to enter the desired alarm levels 19 Press this returns you to the top of the Configuration Set up Tree Setting up the Monitor to Print a Data Log This is only necessary for those of you who do not use the Calibration Software BZ7002 to calibrate the Monitor During calibration the calibration gas is drawn into the cell and the microphones measure the signal produced by the gas s absorption of light from the infra red light source As soon as a measurement is made it is displayed on the Monitor s screen Measurement results are constantly updated on the display but only one set of meas urement results are displayed at a time and no scrolling facility is available to look at previously displayed results Therefore your Monitor should be set up to print a Data log This is described fully in section 10 5 Warming Up the Monitor The infra red light source is very hot and the temperature in the analysis cell thus increases as calibration measurements proceed Conditions within the cell tend to stabilise more quickly once the temperature in
132. mbol when it is important that the user refers to the associated warning statement given in the User Guide A Frame or Chassis A Dangerous voltage D Protective earth Copyright 2014 LumaSense Technologies A S All rights reserved No part of this publication may be reproduced or distributed in any form or by any means without prior consent in writing from LumaSense Technologies A S Denmark 3434i SF6 Leak Detector LumaSense Technologies A S Page 7 of 191 Chapter 1 Chapter 1 Using this Manual July 2014 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 8 of 191 Chapter 1 1 1 Introduction This manual can be used in several ways The first time users can work their way through the examples in order to get to know this monitoring system The more experienced users can jump directly to the relevant chapters in order to gain assistance and experts can use this manual as a reference book by using the index The monitor can be operated in different ways Online Monitoring using LumaSoft Gas Single point 7810 Online Calibration and back up using the Calibration Software BZ7002 Offline using the Offline Software BZ7003 and as a Stand alone instrument This manual focuses on the Stand alone use For instruction in the use of BZ7002 and BZ7003 please refer to the User Manuals BE6034 and BE6035 respectively 1 2 Online Monitoring LumaSoft Gas Single Point 7810 is supplied with the instrument This is
133. measure of the sensitivity of each filter to water vapour in terference If any calibration data is uncertain or unacceptable an error message marked by an asterisk will appear on the screen after the calibration factors have been calculated Whenever an asterisk is shown on the screen further information about the condition of the Monitor can be obtained by pressing INFO Chapter 13 lists all the error messages connected with uncertain calibration results and gives an explanation of their significance so that you can ascertain what action to take if such messages are displayed after calibration Span Calibration Before calculating the conversion factor for a filter during span calibration a concentration offset factor and a humidity gain factor must be in the filter bank which is selected for the filter during span calibration Span calibration of a filter can therefore only be done after the filter has already been zero point and humidity interference calibrated 3434i SF6 Leak Detector LumaSense Technologies A S Page 159 of 191 Chapter 12 During span calibration a supply of a particular gas e g gas Al of known concentration is attached to the air inlet of the Monitor and the total signal in the cell is measured using the water vapour filter and the filter which is being span calibrated for example A As filter A has already been calibrated for humidity interference the total signal Viota Measure
134. ments taken in the 10 min period ending at 12 12 00 The range of acceptable values and the default value of the averaging period are shown in Table 7 6 3434i SF6 Leak Detector LumaSense Technologies A S Page 79 of 191 Chapter 7 Gas Table 7 6 The range of acceptable values and the default value of the averaging period Display Text Acceptable Default Value Values ENTER AVERAGING PERIOD hours minutes hours minutes 00 10 00 10 to 12 00 00 10 Stand alone Use When the averaging function is active it will not only affect the results displayed on the screen but also the measurement results which are being printed out from the Display Memory see Chapter 10 However when the averaging function is deactivated by pressing AVERAGE again the LED will switch off the original results un shaded will replace the averaged results on the screen Gas Setup there are up to six selections here A B C D E and W These represent the filter positions in the monitor s filter carousel When setting up a new monitoring task you can choose freely between the gases available for the filter names entered when calibrating the filter see sections 12 3 and 12 5 Once a gas has been selected for the filter and the measurement task started you can no longer change the gas for this filter in this measurement task However you can still select gases for filters which have not previously been used in the measurement ta
135. n of the named gas in this sample Other Marks Used aaam This symbol indicates either 1 that this gas was not measured or 2 that this gas was not selected to be printed out see section 10 5 8 3 Storage Space in the Display Memory BE6028 14 The total space available in the Display Memory to store data is 131072 measurement cycles Depending on the time for one measurement cycle the capacity will be as follows If a measurement cycle in which gas A and water vapour are measured with continuous sampling takes 15s then the Display memory space will be 546 hours 22 days The Monitor will overwrite the oldest stored measurement data when the Display memory is full This is done by deleting data in blocks of 2048 measurement cycles For further information regarding measurement cycles see chapter 4 3434i SF6 Leak Detector LumaSense Technologies A S Page 99 of 191 Chapter 9 Chapter 9 Storage of Data in the Monitor s Memory July 2014 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 100 of 191 Chapter 9 In order to fully understand the functioning of the Monitor it is necessary to know something about the different types of memory the Monitor uses the kind of data stored in each type of memory and how this data is affected by the various operations performed by the Monitor Offline users may find the information in this chapter of interest as their measurement data is stored in the
136. n on the mesh of the retaining disc otherwise they could be sucked up into and block the measurement system when the analyzer is operated Notes Only proceed to the next step when the acetone has completely evaporated from the cleaned surfaces Each of the fine filter papers DS 0759 are packed between two pieces of packing paper The fine filter paper is always white in colour Hold the stub end of the unit between your thumb and fingers Lift the retaining disc with the tweezers and place it back into position in the unit Refer to Fig 11 8 Remove a new fine filter paper from its packaging using the tweezers Hold it by its edge Carefully place the filter paper over the top of the retaining disc so that it is held in position by the small lip on the rim of the unit Screw the coarse air filter over the end of the external air filtration unit Make sure that the fine filter paper remains in its correct position directly over the retaining disc Cleaning the Filter in the Ventilation Unit A small ventilation unit is mounted on the back panel of the Monitor see in Fig 11 9 The ventilating fan in this unit circulates air through the Monitor to keep it cool To ensure that the air being drawn into the Monitor is free of particles a filter pad is placed be tween the fan and grid which covers it This filter needs to be periodically taken out and cleaned We recommend that this task is done at least as often as calibration and mo
137. n task PERFORM PRACTICAL CALIBRATION TASK NO YES BE6028 14 3434i SF6 Leak Detector CALIBRATE A WITH gas name appears here NO SINGLE POINT TWO POINT HIGH GAS CONC PRESS ENTER TO CHANGE VALUE This display ONLY appears if you have selected to perform zero point calibration of filters installed in positions A to E PERFORM WATER VAPOUR ZERO POINT CALIB NO YES using perfectly dry zero gas PERFORM WATER VAPOUR SPAN CALIBRATION NO WATER VAPOUR CONC PRESS ENTER TO CHANGE VALUE using zero gas containing an accurately known concentration of water vapour 900234_le LumaSense Technologies A S Page 164 of 191 Chapter 12 1 For each filter being span calibrated enter the No of the filter bank where you wish the Monitor to store the conversion factors which will be calculated during the span calibration task 2 Press MEASURE S3 3 S1 then the following text will be displayed PERFORM ZERO POINT CALI BRATION NO YES 3 If you only wish to span calibrate filters follow the set up of a span calibration task by following the black arrows in the schematic diagram shown in Fig 12 15 The following text will appear on the display CON N ECT the name of the gas appears here XXXXXXmg m AND PRESS ENTER WHEN READY Note if the gas concentration on the Analysis Certificate is given in ppm then the following formula can be used to convert from parts
138. nd in section 8 2 1 During the performance of a monitoring task the statistical analysis is updated constantly List of Individual Measurement Results Each of these displays provide the date and time each measurement cycle was performed and the concentration of the gas whose name appears on the screen In some cases an asterisk will be shown alongside the gas vapour concentration When such an asterisk is 3434i SF6 Leak Detector LumaSense Technologies A S Page 91 of 191 Chapter 8 BE6028 14 shown press the INFO button Text will appear on the screen to indicate why this particular measurement has been marked The number which is shown on the display between time and concentration is only filled in after completion of a monitoring task The number indicates the order in which the measurements were made The oldest stored measurement is always given the number 1 and the following measurements are numbered se quentially Overview of the Monitoring Task These displays provide an overview of the monitoring task set up parameters Start of the Monitoring Task The Display Memory has a finite size and therefore if a monitoring task runs for a long period of time it will fill up all available memory Space and data collected after the memory has been filled up will start to overwrite the data collected during the start of the monitoring task Some measurement results will therefore be lost from the m
139. ning parameters is covered in section 6 1 The procedures in the example above are common to all the situations where the select push buttons can be used to access the different levels in the monitor BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 29 of 191 Chapter 4 Chapter 4 Introduction to and Familiarization with the Monitor July 2014 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 30 of 191 Chapter 4 The Monitor is an extremely versatile measuring instrument which can be used to perform almost any kind of monitoring task Its versatility may appear overwhelming at first but to avoid such a reaction we suggest that you read this chapter thoroughly and follow the practical exercises which are included These exercises give you a guided tour through a number of different practical procedures monitoring task performance of a monitoring task scrolling through data after completion of a monitoring task By following these different procedures the Monitor operating philosophy will become apparent and you will be able to quickly familiarise yourself with its operation and control 4 1 Special Terminology 4 1 1 BE6028 14 Certain terms are used to describe the operation of the Monitor and it is necessary to fully understand what these terms mean before you start any practical exercise with the Monitor Measurement Cycle A description of a measurement cycle is giv
140. nitor It is also the unit when print outs of monitoring task data are made from the Monitor However the user can express the measured gas concentrations in ppm 1 Press SET UP S3 S2 S3 and then SET UP 2 Use q to scroll through the results of the monitoring task no 1 displayed on the screen Notice that the gas concentration units have been changed to ppm In a similar way the humidity unit for water vapour and the pressure unit can be changed 4 3 11 Changing the Humidity Unit after a Monitoring Task 1 Press SET UP 53l 52 and then q to reach the following display HUMIDITY UNIT Tdew PRESS ENTER TO CHANGE VALUE 2 Press and use the direction keys to display ppm 3 Press to accept the unit of ppm BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 54 of 191 Chapter 4 4 3 12 BE6028 14 4 Press SET UP Use q to scroll through the results of the monitoring task no 1 displayed on the screen Notice that the water vapour unit has been changed to ppm Changing the Pressure Unit after a Monitoring Task 1 Press SET UP 3 S2 and then q to reach the following display SELECT PRESSURE UNIT kPa mBar mmHg 2 Press 53 to accept the unit of mmHg 3 Press SET UP Use q to scroll through the results of the monitoring task no 1 displayed on the screen Notice that the
141. nitors screen If average values are desired then the example below illustrates how the values are calculated and displayed Let us suppose that the Monitor has been taking measurements every 2 5 min over a period of 30 min of gas A Sulphur hexafluoride and the following results un shaded area were obtained and recorded in the display memory for stand alone users A Sulphur hexafluoride Averaged Values 0 11 42 30 1 66 72 mg m 66 72 mg m 0 11 45 00 2 154 90 mg m 110 9 mg m 0 11 47 30 3 271 30 mg m 164 3 mg m 0 11 50 00 4 415 90 mg m 227 2 mg m 0 11 52 30 5 588 70 mg m 299 5 mg m 0 11 55 00 6 789 70 mg m 444 1 mg m 0 11 57 30 7 1 019 g m 616 9 mg m 0 12 00 00 8 1 276 g m 817 9 mg m 0 12 02 30 9 1 562 g m 1 047 g m 0 12 05 00 10 1 876 g m 1 304 g m 0 12 07 30 11 2 218 g m 1 159 g m 0 12 10 00 12 2 589 g m 1 904 g m Let us suppose that the averaging period was set to 10 min When the above measurement results are displayed on the screen and the averaging function is activated then each measurement will be averaged over the previous 10 min and the averaged measurement results will replace the individual measurement results averaged results are shown in the shaded area in the list above For example measurement number 7 would be 616 9 mg m This is the average of the 5 measurements taken in the 10 min period ending at 11 57 30 Measurement number 12 would be 1 904 g m which is the average of the 5 measure
142. nt gas In this way the conversion factor for each gas is stored in separate filter banks for stand alone use see Fig 12 8 The gas conversion factor stored in the selected filter bank during a span calibration task will be overwritten by the new gas conversion factor calculated during the span calibration of the filter Gas to be Used During Span Calibration The gas you need to use during span calibration must be the gas you wish to measure with the filter Type of Span Calibration Single point or Two point Fig 12 14a Graph showing a non linear span calibration curve which can be plotted using the signals measured during a two point span calibration task Two point Span Calibration of Filter A using span gas A Vien Vito Total signal in the cell compensated for water vapour s signal contribution V low Vofiset Gas Concentration 89201 le BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 161 of 191 Chapter 12 Measured concentration 2700 3000 Concentration of gas 920005e The question about whether to perform a single or a two point span calibration is difficult to answer as it is dependent on how linear the relationship is between a gas s concentration and the signal it produces in the cell see Fig 12 13 Fig 12 14a and Fig 12 14b However we can give you some guidelines on whether you have to perform a single or a two point span calibration Single point c
143. o gas containing an accurately known concentration PERFORM PRACTICAL CALIBRATION TASK ane i of water vapour NO YES 900168_1e BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 169 of 191 Chapter 12 12 9 2 12 9 3 BE6028 14 Performing a Zero point Calibration of the Water vapour Filter As explained in the previous section a zero point calibration of the water vapour filter has to be done together with the zero point calibration of the other installed optical filters The latter task has been fully described in section 12 6 It is worth while to emphasise again that it is vitally important to use perfectly dry zero gas that is zero gas which contains 0 water vapour during this calibration Note that during the zero point calibration of filter A task 1 shown below and during the combined zero point calibration of filter A and the water vapour filter task 2 shown below a zero gas supply is attached to the air inlet of the Monitor The Monitor measures the signal in the cell using the water vapour filter and the other installed optical filter Signals measured with filter A enable the concentration offset factors for filter A to be stored in the filter bank which is active during calibration However the signal measured with the water vapour filter is used differently In Task 1 The signal measured with the water vapour filter is used to compensate all measured signal
144. of the Monitor Push one end of the Teflon tubing through the non threaded end of the nut Hold the end of the tubing between the fingers and gently push the tubing over the end of the Monitor s air inlet stub as far as it will go Note if the tubing is bent broken during this procedure remove the tubing from the stub and repeat this step using an undamaged length of tubing Screw the threaded nut firmly onto the end of the air inlet stub Fig 4 3 Attaching tubing to the air inlet stub and the external filter BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 34 of 191 Chapter 4 3 Attach the other end of the sampling tube to the external air filter which is provided as an optional accessory 4 3 Familiarization with the Monitor using the Front Panel 4 3 1 BE6028 14 Setting the I nternal Clock Before dispatch from the factory the internal clock of the Monitor is set to the correct local Danish time If the monitor is to be used as a stand alone instrument then the clock can be adjusted to your local time using the following instructions 1 Switch on the AC Mains power switch on the back panel of the Monitor 2 Press SET UP Refer to the Set Up Tree supplied with the Monitor so that you can follow your movement through the various branches of this tree in the following sequence of button presses 3 Press 53 5151 S11 3434i SF6 Leak Detecto
145. oint calibration task Likewise a humidity interference calibration can only be performed alone if a concentration offset factor is already stored in the filter bank which is active during the humidity interference calibration task If the necessary calibration factors are not stored in the Monitor s memory a zero point calibration task has to be performed together with a humidity interference calibration task 3434i SF6 Leak Detector LumaSense Technologies A S Page 173 of 191 Chapter 12 The procedure for setting up a combined zero point and humidity interference calibration task is as follows Fig 12 18 Schematic diagram showing how to set up a combined zero point and humidity interference calibration task follow the arrows PERFORM ZERO POINT CALIBRATION NO YES using dry zero gas PERFORM HUM INTERFERENCE CALIBRATION NO YES using wet zero gas If only ONE filter A B C D is installed in the carousel this display does not appear in the calibration set up PERFORM CROSS INTERFERENCE CALIBRATION NO YES using span gases of known concentration PERFORM GAS SPAN CALIBRATION NO YES CALIBRATE A WITH gas name appears here NO SINGLE POINT TWO POINT using span gas of known concentration GAS CONC PRESS ENTER TO CHANGE VALUE HIGH GAS CONC PRESS ENTER TO CHANGE VALUE This display ONLY appears if you have selected to perform zero point calibration of filters installed in positions A to E
146. oints fit the curve within certain tolerances GAS X CALIBRATION IMPOSSIBLE MAX ITER If after 255 iterative processes the two points cannot be fitted onto the curve within tolerance limits this message is displayed This could indicate that the wrong concentration has been entered in the set up of the span calibration task which does not relate to the measured signal Alternatively it could indicate that there is a linear 3434i SF6 Leak Detector LumaSense Technologies A S Page 182 of 191 Chapter 13 13 4 2 BE6028 14 relationship between the gas signal in the cell and the concentration of the gas in which case only a single point span calibration is required SPAN CALI BRATION IMPOSSIBLE This message is associated with the span calibration of the water vapour filter The above message indicates that the Monitor cannot calculate the gas conversion factor This could indicate that the concentration of water vapour used during the calibration was too low this could either be due to an incorrectly entered water vapour concentration in the set up of the span calibration or that the concentration of water vapour used was not the same as that which was entered in the set up Successful Error Messages WATER VAP MEAS lt OFFSET MEAS This message is associated with one or more of the following calibration tasks 1 the one or two point span calibration of an optical filter 2 the zero
147. on ccccccce cece e eee eee eee etna eee eta teen een e eae 138 12 4 The Basic Calibration Set up 0 cece cece eee een rene eae e eaten deena neta een tetas 144 12 5 General Settings Stand alone USC 0 cece eee eae eee eae e eae ee eae 147 12 6 ZeEro point Calibrations issi eee hana neti e ae a aaa ea beaded adenine ann 151 12 7 Humidity interference Calibrations Stand alone USe cccece cece e cence eee eee e neta ens 155 12 8 Span Calibration A rA E A A AAE eased btins atin eet tied ages EAA Ea ETEN 159 12 9 Calibration of the Water vapour Filter Stand alone USe ssssssssssssserssrrrrsrrrrsrrrrere 167 12 10 Setting up a Combined Zero point and Humidity interference Calibration Stand alone Uses sca niet aveaaah E aaaan pices Sait es eae aa eens ea arene ce eee ale ee 173 12 11 Setting up any Combined Calibration Stand alone US c cece cece eee e eee 175 Chapter 13 Messages Related to Calibration ccccc cece cece eee e eee eneed 177 13 1 Successful Calibration Messages 0 cece eee eee eee eee eee eee eee etna teen e eae ne nates 178 13 2 Successful Calibration M SSAQES cece cece eee ee eee eee etna tae ne een ea eee 178 13 3 Invalid Calibration Messages cece cece ee eee eee eee eater e tates 179 13 4 Error Messages Displayed when the INFO button iS used cecc eee eceee eee eeeeeeeeaeeaees 179 Chapter 14
148. on bud with pure acetone and use it to clean the surfaces of the unit Refer to Fig 11 5 Place the unit with its handle end downwards on a clean dry surface 3434i SF6 Leak Detector LumaSense Technologies A S Page 129 of 191 Chapter 11 BE6028 14 Fig 11 5 Cleaning the surfaces of the internal air filtration unit Notes Only proceed to the next step when the acetone has completely evaporated from the air filter retaining disc and filtration unit Each of the fine filter papers DS 0759 are packed between two pieces of packing paper The fine filter paper is always white in colour Remove a new fine filter paper from its packaging using the tweezers Hold it by its edge Refer to Fig 11 6 Lift the filter up and place it inside the unit Fig 11 6 Placing a new filter paper in the unit Holding the handle end of the unit between your thumb and fingers pick up the dry retaining disc and place it over the new filter paper Refer to Fig 11 7 Gently press the disc down over the filter paper making sure that the disc s locking tabs fit properly into the groove in the unit and that the filter paper stays in position and is not damaged in any way Holding the handle end of the re assembled unit between your thumb and fingers place it back into position in the air inlet of the Monitor Screw it back into its mounting To do this turn the unit clockwise with your fingers to tighten until it is in position 3434i SF6
149. on factors calculated during the calibration task Fig 9 2 The state of the Source Memory after completion of a CALI BRATION TASK Source Memory 1 Calibration Factors 2 Optical filter 3 Other Set Up Parameters Set Up Parameters 71 7 Calibration data is stored in CALIBRATION TASK the Filter Bank which is active during calibration 1 Calibration Factors from Active Filter Banks 2 Optical filter 3 Other Set Up Parameters Set Up Parameters oo oo A B c D E i 4 Background Memory 5 Display Memory data copied from storage of Display Memory measurement results Working Memory After completion of a calibration task the calibration factors which are found in the Working Memory are entirely dependent upon the Filter Bank No which is active for the optical filter If Filter Bank No 1 is active for the filter in positions A then calibration factors from files A 1 W will be found in Working Memory see Fig 9 2 9 1 5 Effect of Changing the UA number in the Active Set up WARNING Changing the UA number of the filter in the Monitor s active set up will destroy all calibration data for the filter As explained in section 9 1 1 the UA No determines the set of Optical Filter Factors used during the calculation of calibration factors and therefore if the UA number of the filter is changed in the active set up of the Monitor all calibration data related to the optical filter has been removed from
150. onitor will trigger a switch in the Monitor and activate an external alarm relay connected to it linear average or mean value of all the water vapour concentrations measured during the whole monitoring task standard deviation of water vapour s concentrations from the mean value m described above see section 8 2 1 for further details MIN The humidity unit in this case is Tdew because this is the unit chosen in the active set up see section 4 3 2 W WATER VAPOUR 971 88mBar 2014 01 16 09 50 32 1 7 49Tdew W WATER VAPOUR 971 88mBar 2014 01 16 09 51 33 2 7 49Tdew As you can see the measurement cycles are numbered sequentially as soon as the monitoring task has been stopped for example the above measurement was made at 09 51 33 on the 16 of January and it was the second measurement cycle of the monitoring task The concentration of water vapour is given in the units of Tdew because this was the unit chosen for humidity in the active set up 3434i SF6 Leak Detector LumaSense Technologies A S Page 52 of 191 Chapter 4 After scrolling through the list of individual measurement results for water vapour the following screen displays appear SAMPLING IS CONTINUOUS MONITORING PERIOD IS NOT PRE SET COMPENSATION FOR WATER VAP INTERFERENCE MONITORING TASK STARTED 2014 01 16 09 50 MEASUREMENT CHAMBER TEMPERATURE 39 6 C SAMPLE I NTEGRATION TI ME W 5s
151. only slightly out of alignment then the accuracy of the measurement has not been affected The ac curacy of such a measurement cannot always be guaranteed A The gas concentration measured during this measurement cycle was found to exceed the user defined alarm limit for this gas Symbols Used in Print outs of Measurement Data Displayed measurements marked with the COMMON MARKS O and W and the GAS MARKS A and F are printed out with an X symbol However any displayed measurements marked with the COMMON MARKS P and or E and the GAS MARK B are not printed out with these symbols These measurements are marked in a different way 3434i SF6 Leak Detector LumaSense Technologies A S Page 98 of 191 Chapter 8 Common Marks The symbol P is replaced by the text 3434i Restarted This indicates that the Monitor stopped and then started up again sometime between the previous sample time and the time which appears alongside this message The symbol E is replaced by the text User Event NumberxX This indicates that the EVENT button was pressed while this measurement cycle was being performed The number indicates the total number of events which have been marked during this monitoring task at the time this sample was taken Gas Marks The symbol B is replaced by a straight line _ which indicates that the Monitor was unable to calculate the concentratio
152. or Go To Top of Measurements function The Enter function is used whenever measurement units are selected or any text for example filter names or gas names are being entered The Monitor display will typically display a text similar to PRESS ENTER TO CHANGE VALUE The Go To Top of Measurements function is used in the following situations 3434i SF6 Leak Detector LumaSense Technologies A S Page 58 of 191 Chapter 5 5 2 2 5 2 3 BE6028 14 If you are viewing measurement data when is pressed the display will move to the screen showing the text DATA IN DISPLAY MEMORY RECORDED FROM which gives the period of time data was recorded see Fig 4 4 for details If the Monitor is performing measurements when is pressed the Monitor will display the last measured concentrations of all the gases The Select Push buttons Located below the text display screen these three push buttons allow you to select from the pre defined options appearing on the display screen The following example illustrates the use of the select push buttons If the text on the screen appeared as follows SELECT CONCENTRATION UNIT mg m ppm a By pressing S1 the gas concentrations which appear in the measurement results will be quoted in mg m b By pressing 53 the gas concentrations which appear in the measurement results will be quoted in ppm Function Push buttons The order of these push b
153. period of time The averaging time is defined in minutes The acceptable values are 1 to 999 mins and the default value is 10 mins Action this provides you with 3 ways to trigger the alarm One or more of the options can be selected simultaneously Monitor Beep when an alarm is triggered the monitor makes a beeping noise Monitor Relay 1 amp Monitor Relay 2 selecting these options enable you to connect the alarms to a variety of either audio for example a siren and or visual for example a flashing light alarm systems Active Alarms only the gases which you have selected and activated are shown in this field Measurement Set up Stand alone Use The philosophy of the instructions is described in Chapter 3 To enter the Set Up Tree press SET UP and the monitor displays the following screen text 3434i SF6 Leak Detector LumaSense Technologies A S Page 81 of 191 Chapter 7 SELECT SET_UP BRANCH MEASUREMENT FORMAT CONFIGURATION 1 Press Sl to enter the MEASUREMENT branch The new text displays two branches Monitoring Task branch 2 Press S1 to enter the Monitoring Task branch The following text is displayed MONITORING TASK SET UP NUMBER 1 PRESS ENTER TO CHANGE VALUE BE6028 14 Up to 10 different monitoring tasks can be defined here These are labelled from 1 to 10 Use the direction push buttons to select the desired set up number and move on to the next display Use th
154. point calibration of all the installed optical filter A During all the above listed calibration tasks the signal in the cell is measured using the water vapour filter this enables the Monitor to compensate for any interference signal produced by the presence of any water vapour in the span gas being used If the signal in the cell using the water vapour filter is found to be less than the concen tration offset factor for the water vapour filter the above message is sent This could indicate that the zero gas you used during the zero point calibration of the water vapour filter was not perfectly dry SPAN MEASUREMENT TOO LOW This message is associated with the span calibration of one or more of the filters The above message indicates that the signal measured in the cell during span calibration is less than 3uV and therefore cannot be used to obtain a good calibration This means that the concentration of your span gas is too low 3434i SF6 Leak Detector LumaSense Technologies A S Page 183 of 191 Chapter 13 BE6028 14 SIGNIFICANT CHANGE IN CALIB FACTORS This message is associated with the span calibration of one or more of the filters The above message indicates that the Conversion factor calculated during span calibration of a particular filter deviates more than 15 from the Conversion factor calculated during the last span calibration of this filter If you are absolutely sure that the previous Span cali
155. point calibration with a low concentration of the gas Use 10 of the highest expected concentration level In this case use 300 ppm 1000 times the detection limit 2 Perform a measurement with a high concentration of the gas Use for example 90 of the highest expected concentration level In this case use 2700 ppm If the measured gas concentration differs by more than 5 from the real concentration then a two point calibration with 2 gas concentrations is recommended 3434i SF6 Leak Detector LumaSense Technologies A S Page 163 of 191 Chapter 12 In the example in Fig 12 14b we have measured 2400 ppm with 2700 ppm gas This gives an error of 11 and an even greater error at the highest concentration level 12 8 1 Setting up a Span Calibration Stand alone Use Fig 12 15 Schematic diagram showing how to set up a span calibration task follow the arrows PERFORM ZERO POINT CALIBRATION NO YES using dry zero gas PERFORM HUM INTERFERENCE CALIBRATION NO YES using wet zero gas If only ONE filter A B C D E is installed in the carousel this display does not appear in the calibration set up PERFORM CROSS INTERFERENCE CALIBRATION NO YES using span gases of known concentration PERFORM GAS SPAN CALIBRATION NO YES using span gas of known concentration EITHER GAS CONC PRESS ENTER TO CHANGE VALUE CALIBRATE WATER VAPOUR FILTER NO YES End of the set up section of the calibratio
156. power supply and pull out the plug in the AC Mains socket of the Monitor If the fuses in the Monitor are blown it can indicate a serious fault in the instrument therefore it is advisable to contact your LumaSense service representative before changing the fuse Checking changing the Fuses in the 3434i 1 Turn the 3434i so that it stands on its back panel and remove the rubber shoes mounted on the four feet of its base plate 2 Using Pozidrive screwdriver No 1 undo and completely remove the screws located under the rubber shoes which have just been removed Note these screws hold the upper and lower covers of the 3434i together If the screws are not completely undone you will not be able to remove the upper cover as explained in step 5 3434i SF6 Leak Detector LumaSense Technologies A S Page 14 of 191 Chapter 2 3 Undo the upper four screws holding the frame over the back panel of the 3434i using Pozidrive screwdriver No 0 4 Using the Pozidrive screwdriver No 0 undo the upper four screws which hold the frame over the front panel of the 3434i BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 15 of 191 Chapter 2 5 Gently lift off the upper cover of the 3434i by pulling it firmly upward 6 Use a screwdriver to remove the fuse holder 7 Remove the old fuse from the holder and replace it with a new Check that the fuse has the correct rating The fuse must be
157. ptimum flushing time This time can vary as this option takes into account the cleanliness of the external air filters and the length of the sampling tube Therefore the sample tube length must be defined Table 7 4 The acceptable values and the default values of the length of the sampling tube Monitor Display Text Acceptable Values Default Value LENGTH OF SAMPLING 0 99 metres 0 00 TUBE LENGTH OF SAMPLING 0 324 90 feet 0 00 TUBE Fixed Time there are two selections here Chamber which is always selected with this option and Tube See Table 7 5 for the acceptable values Table 7 5 The range of acceptable values and the default values for the chamber and sample tube flushing times Acceptable Values Interval Default Value Chamber 2 to 60s ls 8s Tube O off 3 to 120 s 1s 35 Water Interference the Monitor is capable of measuring water s contribution to the signal measured in its analysis cell The user can decide whether or not the signal should be compensated for water s contribution It is suggested that water should be compensated for in all measuring situations except where extremely dry gases are being measure BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 78 of 191 Chapter 7 BE6028 14 Gas Monitor Display Averaging Period 3434i stand alone use this enables you to decide if instantaneous values or averaged values are displayed on the gas mo
158. r LumaSense Technologies A S Page 35 of 191 Chapter 4 The following screen picture appears CURRENT DATE 2014 04 19 PRESS ENTER TO CHANGE VALUE Dates are entered as the Year Month Day for example the 19 April 2014 has to be entered as 2014 04 19 4 To change the date press 5 Use the direction keys to enter the correct date Note press S1 to revert back to the original date 6 Press to accept date This causes the text on the display screen to change to the following CURRENT TIME 12 00 PRESS ENTER TO CHANGE VALUE BE6028 14 7 To change the time press 8 Use the direction keys to enter the correct time If you make a mistake in entering the correct date just press S1 and start again The current time is entered as the time read on a 24 hour digital clock For example 13 45 is 15 minutes to 2 o clock in the afternoon 9 Press to accept time When this step is completed the display then moves to the previous head of the Set Up Tree 10 Press A three times and follow the path you take en route through the Set Up Tree The screen display shows the following text 3434i SF6 Leak Detector LumaSense Technologies A S Page 36 of 191 Chapter 4 4 3 2 BE6028 14 SELECT SET UP BRANCH MEASUREMENT FORMAT CONFIGURATION 11 Press SET UP to exit Setting Units All data in the Monitor is stored as raw data The different units
159. r information about the condition of the Monitor can be obtained by pressing Chapter 13 lists all the error messages connected with uncertain calibration results and gives an explanation of their significance so that the user can ascertain what action to take if such messages are displayed after calibration Humidity interference Calibrations Stand alone Use If it is only a newly installed optical filter which needs to be humidity interference calibrated then the same procedure used for a zero point calibration of the filter must be used see section 12 5 1 In this way you can protect your original humidity gain factors 3434i SF6 Leak Detector LumaSense Technologies A S Page 155 of 191 Chapter 12 12 7 1 Setting up a Humidity interference Calibration Task Fig 12 12 Schematic diagram showing how to set up a humidity interference calibration task follow the arrows PERFORM ZERO POINT CALIBRATION NO YES using dry zero gas PERFORM HUM INTERFERENCE CALIBRATION NO YES using wet zero gas If only ONE filter A B C D E is installed in the carousel this display does not appear in the calibration set up PERFORM CROSS INTERFERENCE CALIBRATION NO YES using span gases of known concentration PERFORM GAS SPAN CALIBRATION NO YES CALIBRATE A WITH gas name appears here NO SINGLE POINT TWO POINT using span gas of known concentration GAS CONC PRESS ENTER TO CHANGE VALUE HIGH GAS CONC PRESS E
160. r parameters with active set up values Block 4 contains data collected during the performance of a monitoring task This data block is named the Display Memory because this data is displayed on the Monitor s screen while a monitoring task is being performed Block 5 this block contains measurement data which was copied into it from the Display Memory This block is called Background Memory because the data stored in it cannot be accidentally deleted Block 1 Calibration Factors and 3 Optical filter Parameters from the Active Filter Bank If one optical filters are installed in the Monitor and the UA0988 have been entered in the active set up and Filter Bank No 1 has been selected for filter A then only calibration factors from filter banks Al and W will be stored in this block of data see Fig 9 1 The name molecular weight and alarm limits of each gas will also be stored in this block Block 2 Optical Filter Set up Parameters Whenever the optical filter s active Filter Bank Number is changed the same values are automatically read into Block 2 of the Source Memory Block 3 Other Set up Parameters The active set up values are those values which are underlined by a cursor on the display screen of the Monitor when it is operated in Set Up mode Block 4 Measurement Data BE6028 14 Whenever the Monitor performs any operation which results in data occupying the Display Memory the data already store
161. rated in Memory mode users can at any time find out which locations are used and what percentage of the Background Memory s total data capacity has been used by Pressing the push button LOCATION S USED 1 3 4 5 7 9 10 53 OF MEMORY USED TIME 10 26 The numbers appearing on the above display are those which contain stored data The Monitor will show the above Information text display for a short period of time and then automatically change back to the text which was showing on the display before the push button was pressed 3434i SF6 Leak Detector LumaSense Technologies A S Page 114 of 191 Chapter 9 9 3 5 Upload Memory data using the BZ7003 Offline Software After recalling data stored in any of the background memories to the display memory see section 9 3 2 The data now stored in the display memory can be uploaded using the BZ7003 Offline Software and stored in excel or text format files Regarding the use of BZ7003 please refer to the user manual BE6035 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 115 of 191 Chapter 10 Chapter 10 Using a Printer with the Monitor July 2014 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 116 of 191 Chapter 10 10 1 10 2 BE6028 14 Introduction This chapter informs you on how to obtain hard copies of data stored in the memory of the monitor This could for example be existing calibration data which you n
162. re frequently if the Monitor is working in a very dusty atmosphere or an atmosphere containing high concentrations of other particulate matter Use a pozidrive screwdriver to unscrew the screw on the grid cover Remove the filter pad from inside the grid cover Wash the filter pad in warm water containing some liquid soap Rinse all the soap out of the filter by running clean water through it and let it dry thoroughly Place the clean thoroughly dry filter pad inside the grid cover Screw the grid cover firmly back in place over the ventilation unit 3434i SF6 Leak Detector LumaSense Technologies A S Page 132 of 191 Chapter 11 Fig 11 9 Back panel of the 3434i showing the ventilation unit 11 3 Cleaning the I nstrument It is recommended to clean the instrument using a damped cloth BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 133 of 191 Chapter 12 Chapter 12 Calibration of the Optical Filters July 2014 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 134 of 191 Chapter 12 About the Installed Optical Filters The optical filter UA0988 has been installed in the position marked A of the filter carousel wheel in your Monitor A special optical filter which is selective to water vapour is always installed in position W The optical filter has to be span calibrated with the gas it is to measure If this span calibration is not performed the Monitor is unabl
163. red A water vapour optical filter which transmits light with a wavelength which is absorbed by very few gases except water vapour is always installed in position W of the filter carousel Using this filter water vapour s interference is measured during the Humidity Interference Calibration on the installed filter A supply of zero gas containing a constant concentration of water vapour is attached to the air inlet of the 3434i SF6 Leak Detector LumaSense Technologies A S Page 137 of 191 Chapter 12 12 3 12 3 1 Monitor The signal in the cell is measured with the water vapour filter and with the installed optical filters The water vapour in the cell absorbs light from the water vapour filter and from the installed filter producing signals which are related to water vapour s relative absorption of the light at the wavelengths transmitted by the optical filter see Fig 12 2 We know however that the ratio of the signal measured with any one filter e g A and the signal measured with the water vapour filter is a constant This ratio is related to the Humidity Gain Factor calculated during the humidity interference calibration of filter A For example if the signal produced by water vapour when using the water vapour filter is 160uV and using Filter A is 16uV then if the signal measured with the water vapour filter is found to be 80uUV we know that this concentration of water vapour will produce a si
164. ring task mode Looking at measurement Measurement results are Display results on the display shown on the display from the screen beginning again Set up mode Changing set up Measurement results are parameters which control shown in the display from the the operation of the beginning Monitor Memory mode Handling measurement Completes any interrupted task results which are stored and then measurement results in Display Memory and are shown in the display from Background Memory the beginning Interface Obtaining hard copies Print out is stopped and that is print outs of for measurement results are example measurement shown in the display from the data beginning 5 3 4 Full reset and or Partial Reset of the Monitor via its Front Panel There are two well defined levels of reset By pressing RESET the following text appears on the display screen SELECT RESET TYPE PARTIEL FULL BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 63 of 191 Chapter 5 If S3 is pressed you can come out of reset mode without performing any kind of reset The Monitor just goes back to operating the same way it was operating before the RESET push button was pressed S1 52 PARTI AL Reset If this level of reset is chosen the Monitor stops operating performs a partial reset as described in the previous section section 5 3 2 and then resumes operating
165. rther information about the I NFO push button can be found in section 9 3 4 9 3 Management of Data in Background Memory 9 3 1 BE6028 14 The monitor has to be operated in Memory mode by pressing the MEMORY push button The following text appears on the screen SELECT MEMORY FUNCTION RECALL DELETE Storing Data in Background Memory When data is to be copied from Display Memory into Background Memory Press s1 LOCATION NUMBER 1 PRESS ENTER TO CHANGE VALUE If some data has already been stored in the Background Memory and you cannot remember which locations have been occupied used press the INFO push button to find out which locations are occupied and what percentage of the Background Memory has been used see section 9 3 4 Use the direction keys to select the desired location number When the chosen location number is on the screen press S2 to accept the position Press Memory to exit 3434i SF6 Leak Detector LumaSense Technologies A S Page 112 of 191 Chapter 9 9 3 2 Recalling Data from Background Memory To recall data stored in Background Memory to Display Memory 1 Press Memory 52 LOCATION NUMBER 1 PRESS ENTER TO CHANGE VALUE 2 Use the direction keys to select the correct location number The following text is displayed WARNING DISPLAY MEMORY WILL BE DELETED PROCEED STOP 3 If you want to continue press S1 and the following
166. s are listed There is a description of each fault as well as the possible cause s of each fault The user must evaluate the significance of each message As long as the fault is detected all measurements will be marked by an asterisk Some faults are easily corrected 3434i SF6 Leak Detector LumaSense Technologies A S Page 186 of 191 Chapter 14 Warning and Error Messages The following table gives most of the error and warning messages contained in the test Hierarchy of the Monitor There is a description of each fault as well as the possible cause of each fault The user must evaluate the significance of each message Warning Messages Description of Fault Possible Cause AIR FLOW TOO LOW The air pressure difference created by the pump in the pneumatic airway system tubes and or analysis cell is too low This means that the tubing and or analysis cell cannot be properly flushed out and the sample in the analysis cell is therefore not necessarily new The length of the sampling tube attached to the Monitor s inlet has been incorrectly entered Either the external or internal pneumatic system is not air tight The pump is defective This might also indicate a too AIRWAY SYSTEM BLOCKED ALARM LIMIT EXCEEDED NO INDEX MARK FROM FILTER CAROUSEL high inlet pressure The air pressure difference The Air inlet is created by the pump in the blocked pneumatic airway
167. s for any interference caused by the presence of any residual water vapour in the zero gas supply In Task 2 The signal measured with the water vapour filter is used to update the concentration offset factor for the water vapour filter This means that the signals measured with filter A be compensated for the presence of any water vapour present This is why it is vitally important to use perfectly dry zero gas during this task Please refer to section 12 6 2 for details about how to perform a zero point calibration task Setting up a Span Calibration of the Water vapour Filter Remember that span calibration of the water vapour filter is only necessary if you wish to measure the absolute concentration of water vapour in air samples If the water vapour filter is not span calibrated you will not be able to measure the concentration of water vapour in gas samples during a monitoring task Before the water vapour filter can be span calibrated it has to be zero point calibrated that is a concentration offset factor for the 3434i SF6 Leak Detector LumaSense Technologies A S Page 170 of 191 Chapter 12 BE6028 14 water vapour filter must be stored in the Monitor s calibration data block During span calibration of the water vapour filter it is necessary to attach a supply of zero gas containing a known concentration of water vapour to the Monitor As explained in the Humidity interference Calibration Section 12 7 2 it is
168. side the analysis cell is 15 C above the ambient room temperature We therefore suggest that you set up the Monitor to sample continuously for a period of 30 40 min to warm up the analysis cell before a calibration task is started This will reduce the time required for calibration To warm up the Monitor you need to set up a monitoring task and make the Monitor perform the task for a period of time If you are unsure about setting up and starting a monitoring task full instructions are provided together with an example in section 4 3 for stand alone use The Continuous warm function can also be used hence the warm up starts on power on see section 5 6 The Basic Calibration Set up The general equipment required to perform the calibration is shown in Fig 12 4 Three different lengths of Teflon tubing are connected to a Y piece The tube attached to point 1 is connected to the air inlet of the Monitor the tube attached to point 2 is attached to a gas flow 3434i SF6 Leak Detector LumaSense Technologies A S Page 144 of 191 Chapter 12 meter or similar apparatus and the tube attached to point 3 is at tached to the cylinder of gas which is to be used during calibration Fig 12 4 General equipment required for a calibration task Teflon To flow meter Pressure tubing A A gauges r flow Attachment point no 2 Y piece Attachment point no 1 Teflon tubing connected to air inlet of Teflon the monitor
169. sk Note only one gas per filter can be selected at a time for measuring The W position always represents the water filter installed in the monitor Sample Integration Time this enables you to make a choice between speed and accuracy Generally the longer the integration time the more accurate the results There are several selection possibilities here Integration Type Integration Time Fast 1s Normal 5S Low Noise 20s Advanced 0 5s 1s 2s 5s 10s 20s 50s Alarm set up BE6028 14 Select Gas this option enables you to select any of the gases one per filter position already defined in the set up 3434i SF6 Leak Detector LumaSense Technologies A S Page 80 of 191 Chapter 7 7 2 1 BE6028 14 Limit enables you to define the gas concentration that will trigger the alarms The acceptable values are shown in Table 7 7 Select limits this defines the concentration level when the alarm is triggered This parameter must be defined Table 7 7 The range of acceptable values and default value of the alarm limit for the gases Display Text Acceptable Values Default Value GAS A HIGH ALARM LIMIT 1 0 1000000ppm Blank ht PPM GAS A HIGH ALARM LIMIT 1 Depends on the molecular Blank i mg m3 weight of the gas nt Ato W The Rolling Average option enables you to prevent the alarm being triggered by sudden small fluctuation in the gas concentrations by using values which are averaged over a defined
170. t the set up mode 2 5 Setting the Ethernet Communication Parameters The LumaSoft Gas 7810 application with Ethernet communication is able to communicate with the 3434i gas monitor through a local Ethernet network The homepage of the 3434i gas monitor can also be displayed in a web browser when the 3434i gas monitor is connected to a local Ethernet network 2 5 1 Checking Changing the Ethernet Communication Parameters The communication parameters for the Ethernet interface can be set by using the push buttons on the front of the monitor 1 Press SET UP S3 S1 53 S2 The screen display now shows the following text SELECT ADDRESSABLE SET UP BRANCH Ethernet IEEE 488 2 Press 51 to enter the Ethernet setup During this setup you can also use the A and W keys to go back and forth between the BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 19 of 191 Chapter 2 WW available Ethernet settings The screen display now shows the following text 1S 3434i S IP ADDRESS SET BY DHCP NO YES Here you can select whether the IP address of the 3434i gas monitor is to be assigned by a DHCP server in the local network If you want the 3434i s IP address to be assigned by the DHCP server press the 53 Yes key where after you will proceed to the below step 6 as the IP address is set by the DHCP server If you want yourself to set the IP address of the 3434i press the sl No key The screen display no
171. te the concentration offset factor for a filter during a zero point calibration it is necessary to have a humidity gain factor for the filter and vice versa If a humidity gain factor is not stored in each of the filter banks which are active during a zero point calibration then it is necessary to perform a combined zero point and humidity interference calibration task The set up of this combined task is discussed in section 12 11 If it is only a newly installed optical filter which needs to be calibrated then the same procedure used for an individual filter must be used see section 12 5 1 In this way you can protect your original concentration offset factors BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 151 of 191 Chapter 12 12 6 1 Setting up a Zero point Calibration Stand alone Use Fig 12 10 Schematic diagram showing how to set up a zero point calibration task follow the arrows PERFORM ZERO POINT CALIBRATION NO YES using dry zero gas PERFORM HUM INTERFERENCE CALIBRATION NO YES using wet zero gas If only ONE filter A B C D E is installed in the carousel this display does not appear in the calibration set u PERFORM CROSS INTERFERENCE CALIBRATION NO YES using span gases of known concentration PERFORM GAS SPAN CALIBRATION NO YES CALIBRATE A WITH gas name appears here NO SINGLE POINT TWO POINT using span gas of known concentration GAS CONC PRESS ENTER T
172. tector LumaSense Technologies A S Page 128 of 191 Chapter 11 BE6028 14 Acetone analytically pure Spare fine filter paper DS 0759 Tweezers with Teflon coating Cotton buds Clean rubber gloves To change the filter paper Switch the power to the monitor Off by using the AC mains power switch on its back panel press O and then pull out the plug connecting the monitor to the AC mains power supply Put a rubber glove on the hand which is to hold the parts of the unit Unscrew the internal air filtration unit from its mounting on the air inlet see Fig 11 1 To do this turn the unit anti clockwise with your fingers until the unit is free of the slot The unit is removed from the monitor It is shown in Fig 11 2 Use the tweezers to lift off the retaining disc and used filter paper while holding the handle of the unit between your thumb and fingers Refer to Fig 11 4 The retaining disc has two tabs which lock it to the filtration unit Fig 11 4 Removing the retaining disc and old filter paper Holding the disc with the tweezers moisten a cotton bud with pure acetone and use it to clean the surfaces of the disc Place the disc on a clean dry surface Caution Make sure that no cotton fibres remain on the mesh of the retaining disc otherwise they could be sucked up into and block the measurement system when the Monitor is operated Hold the handle end of the unit between your thumb and fingers Moisten a cott
173. the DEFAULT This will blank out the alarm level value for the gas and deactivate the alarm for that gas 3434i SF6 Leak Detector LumaSense Technologies A S Page 85 of 191 Chapter 7 GAS A HIGH ALARM LIMIT 2 mg m PRESS ENTER TO CHANGE VALUE 5 Repeat steps 2 to 4 to set the alarms for the other filters 6 Press SET UP to exit the alarm set up 7 4 Starting a Monitoring Task 7 4 1 7 4 2 BE6028 14 Monitoring tasks can be started in two ways They can be started immediately or set to start at a pre set time The duration of the monitoring sequence can also be determined A monitoring task can continue until it is stopped manually or at a pre set time When using the PC and the Online option there are no limits to the duration of a monitoring task However if the measurement results are being stored in the monitor s memory the duration of the monitoring task should be considered as there is only a finite amount of memory in the monitor See section 8 3 for full details about the storage capacity of the monitor PC Use using the Online Program7810 Application SW Please refer to user manual BE6027 for Application Software 7810 for assistance to set up start and stop a monitoring task Stand alone Use using the Front Panel Push buttons Before a monitoring task is started the set up as described in section 7 2 must be completed Before any monitoring task is started all data stored in
174. the Ethernet Communication ParameterS cceecee cece eee cece e tenet neta teeta ene 19 2 6 Setting up user Levels ccc enna eee e ean a ene nana nate tates 23 2 7 Restoring of calibration data 0 eee rene rnatina nunnan eaten eee 25 Chapter 3 Philosophy of Operation cece terete nents 26 3 1 PC Uses Online s ce seek eee eee Gaede eee ieee ete ee ea ee ee ead 27 3 2 Stand alone USC esiis uiia Secs ehh da ee eee ee eid Pe teenie ee eet dee deere ieee tinea 28 Chapter 4 Introduction to and Familiarization with the Monitor cccccceeeee eee ee eee ee teen ea eee 30 4 1 Special TERMInGlOGy e555 coke caste ceha setedoh ined e wdc a a a Lene aa aa a Si 31 4 2 Attaching the Sampling Tube and External Filter cece eee eect eee eee teeta eee ea eee 34 4 3 Familiarization with the Monitor using the Front Panel ccceeeeeee teste ee eee eee eeeaeee 35 Chapter 5 The Monitor mesne pie eet ieee a venient ed ada teed ene eee eee ea eee ee 56 5 1 IntrodUctioN i innsin i AEN E EEE E EE NAA 57 S2 ELONtRANEL ta cetas a aaa aaa a a hake bal a a a aa a 57 5 3 Starting up or Restarting the MONitor ccc eect ee eae teen e tee ne eaten ees 61 5 4 Configuring the Monitor ccc reer neta ene e etna Ennn eats 64 5 5 Alarm Relays cieesicil see uana aa reer neu edie ineesien aves rade dae aa aaa a aa e 67 5 6 Continuous Warm System sie erdan aiena eee nate eaten etna eat
175. the Monitor should calculate gas concentrations If for example you enter a normalization temperature of 25 C the measured gas concentrations which appear on the display during a monitoring task will be calculated in mg m3 units at 25 C The acceptable values and the default values of the normalization temperature are given in Table 7 2 in the different temperature units Table 7 2 The acceptable values and the default values of the normalization temperature Display Text Acceptable Values Default Value NORMALIZATION TEMPERATURE 0 C 20 C and 25 C 20 C NORMALIZATION TEMPERATURE 32 F 68 F and 68 F 77 F NORMALIZATION TEMPERATURE 273K 293K and 293K 298K 7 1 1 Stand alone Unit Set up For those of you setting up the monitor using these instructions it may be useful for you to follow the steps taken using the Set Up Tree The philosophy of the instructions is described in section 3 2 To enter at the top of the Set Up Tree press SET UP and the monitor displays the following screen text SELECT SET UP BRANCH MEASUREMENT FORMAT CONFIGURATION L Press S3 to enter the CONFIGURATION branch The new text displays three branches BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 76 of 191 Chapter 7 SELECT CONFIGURATION SET UP BRANCH SYSTEM UNIT FILTERS Units branch 2 Press 52 to enter the Units branch 3 Use the select push b
176. the Quick Set up Guide are given factory values default values When setting up the Monitor as a stand alone instrument those values with a cursor underneath them are the active values It is the active values which determine how the Monitor will operate Warning Failure to define any parameter may result in the default parameters being used This can result in the monitor measuring incorrectly or being unable to start the measurement task 7 1 The Parameters Units BE6028 14 The Monitor works internally with measurement parameters in SI units These units can be converted and displayed as a variety of other measurement units Defining the units here has two uses It enables you to set up the measurement parameters using familiar units and displays the measurement results with the desired concentration units These parameters are listed below Table 7 1 The possible parameter units and the default settings Parameters Units Default Unit Humidity mg m ppm Tdew kPa mg m Pressure mbar mmHg kPa kPa Temperature C F K C Gas Concentrations mg m ppm mg m Length m ft m The units for existing measurement results can also be changed using these instructions 3434i SF6 Leak Detector LumaSense Technologies A S Page 75 of 191 Chapter 7 Normalization Temperature If you have chosen to measure gas concentrations in the unit mg m3 you must enter the temperature at which
177. the cursor to the desired number letter For pre defined parameters these push buttons enable you to scroll through the list Display the desired parameter then go to step 5 3 Use t and u to move the cursor across the entry fields and repeat step 2 4 Repeat steps 2 and 3 until the entry fields show the desired value or text 5 Press 3434i SF6 Leak Detector LumaSense Technologies A S Page 72 of 191 Chapter 6 If the parameter you desire is already selected i e a cursor is displayed under it then using q enables you to move directly to the next display These procedures are common for all the parameters in the Monitor BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 73 of 191 Chapter 7 Chapter 7 Setting up and Starting a Monitoring Task July 2014 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 74 of 191 Chapter 7 Before a measurement task can commence there are a variety of parameters that must be defined first This is called Setting up the Monitor This chapter instructs you on how to set up the monitoring system before starting to measure As mentioned previously in this manual the parameters can be defined using the PC Use instructions i e when using a PC or the stand alone Use instructions i e when using the front panel push keys on the monitor Before leaving the factory each of the parameters found in the set up tree see
178. to three calibration categories 1 successful 2 uncertain and 3 invalid An explanation is given of each message and its significance so that the user can ascertain what action to take if such messages are displayed after calibration Successful Calibration Messages The messages listed below indicate 1 that the calibration task you have just performed has been successful and 2 that the calibration factor calculated during the calibration task has been stored in the filter bank which was selected active during the calibration task ZERO POINT CALIBRATION SUCCESSFUL HUM INTERFERENCE CALIBRATION SUCCESSFUL ZERO POINT HUM INTERF CALIB SUCCESSFUL GAS X SINGLE POINT CALIBRATION SUCCESSFUL GAS X TWO POINT CALIBRATION SUCCESSFUL Where Gas X is the gas used during the span calibration of the filter installed in position X of the filter carousel Where X A or W Successful Calibration Messages The messages listed below indicate 1 that the calibration task you have just performed is perhaps not as good as can be expected 2 that the calibration factor which has just been calculated has been stored in the filter bank which was active during the calibration task and 3 that you will have to judge the validity of the calibration If you judge it to be invalid then the task will have to be repeated so that the calibration factor stored in the filter bank can be overwritten by a new and valid
179. tructions progress Starting from the initial screen display CURRENT TIME IS 2011 06 13 17 12 MONITOR IS READY FOR USE 1 Press SET UP and the text changes to that displayed below SELECT SET UP BRANCH MEASUREMENT FORMAT CONFIGURATION 2 To select the MEASUREMENT branch press S1 Pressing either of the other select push buttons will take you along another branch of the set up tree The following text is displayed SELECT SET UP BRANCH MONITORING TASK ENVIRONMENT To select the ENVI RONMENT branch press S3 The text is displayed 3434i SF6 Leak Detector LumaSense Technologies A S Page 28 of 191 Chapter 3 SELECT FLUSHING MODE AUTO FIXED TIME 3 To select the flushing mode press S1 The following text is displayed LENGTH OF SAMPLING TUBE 00 00 m PRESS ENTER TO CHANGE VALUE This branch does not divide again At this stage you are able to define the parameters in this branch of the tree using the direction push buttons If the branch had divided again it is a simply process of using the correct select push button to continue down the desired branch Parameters that are already selected are displayed either with a cursor under the current selection or the value is displayed on the top line When the correct value or parameter is already selected you can continue on through the tree using the Wdirection push button To exit SET UP mode press SET UP Defi
180. ues 4 Background Memory 5 Display Memory empty empty Working Memory 9 2 Storage of Measurement Results While a monitoring task is being performed measurement data is stored in the Monitor s Display Memory When the monitoring task is complete the data in Display Memory is normally copied into the BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 109 of 191 Chapter 9 Monitor s Background Memory to prevent it from being overwritten and therefore lost by measurement data stored during the next monitoring task The same amount of data can be stored in both the Background Memory and the Display Memory Structure of the Background Memory BE6028 14 The data from a maximum of 10 monitoring tasks can be stored in the Background Memory provided the total amount of data from the 10 tasks does not exceed the total capacity of the Background Memory Each monitoring task stored in the Background Memory is given a location number from no 1 to no 10 The size of each location is flexible and is equal to the space required to store all the data collected during a monitoring task Each monitoring task stored will occupy at least 2 of the total Memory capacity If data from a single monitoring task totally occupies the Display Memory then this data can be stored in Background Memory provided that no data is already stored there The data will occupy only one location of Background Memory and fill al
181. uttons are the same as they are seen on the front of the monitor RESET By pressing this push button you can choose the type of reset the Monitor should perform For further details see section 5 3 LOCK This push button enables setting up three different password protected User Levels For further details see section 2 6 MEASURE in this mode you are able to choose the type of measurement the Monitor should perform and decide when the measurement should start 3434i SF6 Leak Detector LumaSense Technologies A S Page 59 of 191 Chapter 5 EVENT MEMORY PRINT SET UP This push button allows you to average measurement data The lamp in this push button is lit when measurement data is being averaged You define the averaging times using the set up mode If an unusual or interesting event occurs during a measurement period you can mark the time such an event took place by pressing this push button Each event marker is given a serial number which can be used as a reference Events are marked on print outs of measurement data In this mode you are able to store measurement data in the Background memory of the monitor as well as recall or delete data from the Background memory This push button has two functions It allows you to perform the following two functions Acknowledge any message which may appear on the display screen during operation of the Monitor Obtain
182. uttons to define the concentration unit 4 Use the select push buttons to define the length unit 5 Use the select push buttons to define the temperature unit 6 Use the select push buttons to define the pressure unit 7 The humidity unit is displayed Use the direction push buttons to change it to the correct value When step 7 is completed the display returns to the top of the Units branch Press p to go to the top of the Set Up Tree or press SET UP to exit the set up mode 7 2 The Measurement Parameters Sampling BE6028 14 Sampling mode the manner in which the gases are sampled There are two possibilities here Continuous sampling once the monitor is finished measuring it starts again making the next measurement for a full explanation see section 4 1 Interval Sampling this is the time from the start of one measurement cycle to the start of the next one for a full explanation see section 4 1 3434i SF6 Leak Detector LumaSense Technologies A S Page 77 of 191 Chapter 7 Table 7 3 The range of acceptable values and the default value for the Fixed interval sampling Acceptable Values Interval Defalut Value hours minutes hours minutes hours minutes 00 01 to 01 00 00 01 00 02 Flushing the length of time the monitor flushes the measurement chamber and the sample tubing between measurements There are two options here Auto the monitoring system controls the flushing by selecting the o
183. uttons to select Tube Flushing If you don t want tube flushing select NO and go to step 17 If you select tube flushing use the direction push buttons to define the flushing time and go to step 17 Use the direction push buttons to select the desired sample tube length and move on to the next display Use the direction push buttons to select the desired normalization temperature See section 7 1 for details about the normalization options When step 17 is completed the display returns to the top of the MEASUREMENT branch Press p to go to the top of the Set up Tree If you want measurement data presented as averaged concentration values then go to step 19 If you want your measurement data presented as sample concentration values then press SET UP to exit the set up function Format branch If you are starting here press SET UP 18 19 20 Press S2 to enter the FORMAT branch Use the direction push buttons to enter the correct averaging period Use the select push buttons to choose if you want to print each gas If you select Yes go to step 21 If you select No go to step 22 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 84 of 191 Chapter 7 21 Use the select push buttons to choose which individual parameters should be printed Each time one of the select push buttons is pressed the next parameter is displayed This step can be repeate
184. w shows the following text 3434i S IP ADDRESS 192 168 000 200 PRESS ENTER TO CHANGE VALUE D 5 Here you can change the IP address of the 3434i gas monitor in case the IP address is not set by a DHCP server in the local network If you want to change the IP address press the key If the IP address does not need to be changed press the W key and you will proceed to the below step 6 If you selected to change the IP address the screen display now shows the following text 3434i S IP ADDRESS 192 168 000 200 CANCEL DEFAULT Here you can change the 4 individual numbers in the IP address by using the A and YW keys Each of the 4 individual numbers can be set in the range from 000 to 255 You can step between the 4 individual numbers in the IP address by using the lt and gt keys In case you want to return to the start value of the IP address press the 51 CANCEL key In case you want to return to the default stored value of the IP address press the S3 DEFAULT key When you have set the IP address press the key The screen display now shows the following text 3434i S IP PORT NUMBER 23 PRESS ENTER TO CHANGE VALUE BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 20 of 191 Chapter 2 6 7 Here you can set the IP port number for the Ethernet communication This normally does not need to be changed If you want to change the IP port number press the key If the I
185. when such a display is seen you can display what the asterisk indicates Section 8 2 2 shows the display which appears when INFO is pressed and explains all the symbols used Marked events are also shown on print outs and of monitoring task data see section 8 2 3 q This push button allows the user to scroll vertically downwards through the list of measurement results See Fig 8 1 p This push button allows the user to scroll vertically upwards through the list of measurement results The measurement list is a closed loop The push buttons p and q have a repetitive function which means that if they are pressed continuously they will allow the user to scroll very quickly through a list Processing Measurement Data Gas measurement data stored in Display Memory can be processed in the following way It can be processed to produce Time weighted Average TWA concentrations of gases over any user defined period of time Obtaining Time weighted Average TWA Values By using the AVERAGE button Time weighted Average concentrations Crtwa of all the monitored gases can be obtained over any user defined period of time T hours The following steps are involved 1 Press SET UP and S2 3434i SF6 Leak Detector LumaSense Technologies A S Page 94 of 191 Chapter 8 8 1 3 BE6028 14 2 Enter the period of time required for averaging this could for example be 8 hours if you
186. which you can select here enable you to enter gas concentrations and to display temperatures lengths and pressures in units which you are comfortable with These units are also used to present measurement data in a form that is most convenient for you The Monitor can display gas concentrations either in absolute units of mg m3 unit that is dependent on a particular temperature termed the normalization temperature or in units of parts per million by volume which is independent of the temperature of the gas You can inform the monitor about the units you intend to use for example the length of the sampling tube attached to the Monitor s inlet in meters or feet atmospheric pressure kPa or mBar or mmHg and unit for humidity ppm or Tdew or kPa or mg m The measurement units can be changed using the push buttons on the front of the monitor 1 Press SET UP 2 Press S3 and then 2 The following text appears on the screen display SELECT CONCENTRATION UNIT mg m ppm The cursor appears under the unit which is presently in the active set up 3 Press S1 to select mg m 3434i SF6 Leak Detector LumaSense Technologies A S Page 37 of 191 Chapter 4 4 Select metres as the unit of length C as the temperature unit and kPa as the pressure unit by using a procedure similar to that described in the previous steps After the pressure unit has been selected the follo
187. will cause an excessive leakage current The 3434i SF6 Leak Detector LumaSense Technologies A S Page 68 of 191 Chapter 5 current through the contacts must not exceed 100mA AC voltages must not be connected to the Alarm Relay socket Fig 5 2 Configuration of the pins in the alarm relay socket Alarm relay 1 Alarm Relay 2 5 6 Continuous Warm System The Continuous Warm System ensures that the monitor is kept warm at any time that is also when the Monitor is not measuring If the Monitor is powered up at all time you can save the warm up time when starting a measurement 5 6 1 Setting up the Monitor to Continuous Warm System The procedure to enable the Continuous Warm System is as follows 1 Press the following push button sequence SET UP S3 S1 S1 and the following text is displayed SELECT GENERAL SET UP BRANCH CLOCK SOUND TESTS 2 Press S3 q three times S3 SET UP This selects the continuous warm system 3 Press RESET 51 Partial Reset in order to enable the continuous warm system BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 69 of 191 Chapter 6 Chapter 6 Keying in Parameters July 2014 BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 70 of 191 Chapter 6 6 1 Types of Parameters There are four types of parameters Numerical you are free to enter the desired values However ther
188. will explain how to perform a monitoring task for example monitoring task number 1 which was set up in section 4 3 4 1 Press MEASURE The following text appears on the screen 3434i SF6 Leak Detector LumaSense Technologies A S Page 43 of 191 Chapter 4 BE6028 14 ACTIVE TASK MONITORING TASK NUMBER 1 START TASK DELAYED TASK CHANGE TASK Please note if you do not use one of the select keys within a short time after the above text appears the Monitor will automatically stop operating in Measure mode the light emitting diode in the MEASURE key switches off If this happens just press MEASURE again The active monitoring task number is the number of the monitoring task you wish the Monitor to perform 2 If the number on the display is number 1 then go to step 5 If the number on the display is not number 1 then press s3 to change the task number to number 1 This changes the display text to the following SELECT TASK MONITORING TASK CALIBRATION TASK 3 Press Sl This causes the following text to appear on the display MONITORING TASK SET UP NUMBER 1 PRESS ENTER TO CHANGE VALUE The number appearing on the screen will be a number from 1 to 10 4 Press and use the direction keys to change the monitoring task number to 1 Then press again to accept the task number The following text appears on the display screen 3434i SF6 Leak Detector LumaS
189. wing text appears on the display SELECT HUMIDITY UNIT mg m PRESS ENTER TO CHANGE VALUE There are more than three humidity units to choose from therefore the means by which a unit is selected differs 5 Press 6 Use A amp to scroll through the options 7 When Tdew is displayed press The display automatically returns to the head of the CONFI GURATI ON setup branch 8 Press SET UP to exit 4 3 3 Setting the Environment Parameters Environmental parameters describe the factors which influence the measurement situation the length of the sampling tube attached to the Monitor and the normalization temperature These parameters are discussed more fully later on in this section 1 Press SET UP S1 and then S3 This brings you into the Environment branch of the Set Up Tree where the following text is displayed SELECT FLUSHING MODE AUTO FIXED TIME BE6028 14 3434i SF6 Leak Detector LumaSense Technologies A S Page 38 of 191 Chapter 4 The Auto option regulates the flushing time depending on the sampling tube length and the cleanliness of the air filter as the filter become dirtier the flushing time will increase The Fixed Time option is divided in to two parts chamber flushing time and sample tube flushing time Once defined these times are constant regardless of the sampling tube length and cleanliness of the filters Auto Option BE6028 1
190. witched off and is re started in any of the following ways If the Monitor stops operating due to an AC mains power failure and then re starts itself automatically when power is restored to it If the user stops operating the Monitor by switching it off using the AC mains power switch on the back panel and then re starts it by using the same switch Users can also partially reset the Monitor by using the RESET push button on the front panel see section 5 2 3 A Partial Reset of the Monitor When the Monitor performs a partial reset a number of self tests are automatically performed The types of tests performed depend only upon the time which has elapsed since the Monitor was last switched on If more than 10 mins have elapsed since the Monitor was switched on it will perform the software data integrity and hardware tests when switched on again If less than 10 mins have elapsed since the Monitor was switched on it will perform only the data integrity tests when switched on again There are essentially 3 types of self tests which can be performed during a partial reset a software test a data integrity test and a hardware test It takes the Monitor only a few seconds to perform the data integrity tests and about 3 minutes to perform both the software and hardware test The different tests are explained below Software test This test checks the information in the Monitor s software ROM Read Only Memory
191. with each of the gases it is to measure For example if you refer to the Gas Detection Limits wall chart you will see that the filter UA 0988 can be used to meas ure 1 Sulphur hexafluoride The filter UA 0988 is installed in position A of the filter carousel to measure the above gas Before this filter is calibrated the Monitor has to be told where to store the calibration factors which are calculated during the calibration procedure This is done by selecting a FILTER BANK NO in the active set up for Filter A each time the 3434i SF6 Leak Detector LumaSense Technologies A S Page 103 of 191 Chapter 9 filter is calibrated For example Filter Bank No 1 for storage of the calibration factors for Sulphur hexafluoride After calibration of the filter UA 0988 the Monitor is able to accurately monitor the gas mentioned By selecting the correct FILTER BANK NO in the set up of the Monitor before a monitoring task is started the user determines which calibration factors will be used during the task For example when Filter Bank No 1 is entered in the active set up for filter UA 0988 in position A the Monitor reads the calibration factors from file A1 into its Working Memory Block 2 Optical Filter Set up Parameters This block contains 3 of the 6 parameters which describe the optical filter installed in each position of the filter carousel UA number of the filter Filter bank number S I T
192. y first measurement is overwritten by the 7 measurement so that only 6 measurements are still stored When 8 measurements have been completed the number n will also show 6 because the results of the first and second measurements have been overwritten by the 7 and 8 measurement results and so on Let the Monitor continue measuring the clean wet air until the temperature in the cell is stable Look at the print out of the 3434i SF6 Leak Detector LumaSense Technologies A S Page 158 of 191 Chapter 12 12 8 BE6028 14 average and standard deviation measurements for 1 the water vapour and 2 all the other filters When all these values have stabilised calibration measurements do not need to continue Continue to the next Step 4 Press This will cause the results of measurements made with all the other installed filters to be displayed for example A p 19 34 V o 212 nV 6 39 3 C PRESS ENTER WHEN RESULTS ARE STABLE These results have been printed out on the data log printer If they have stabilised continue to the next Step 5 Repeat step 4 until the signals measured with all the filters have been displayed stabilised and been accepted The text CALCULATI NG PLEASE WAIT appears on the screen The Monitor only uses the last six measurement results when calculating any calibration factor The humidity gain factors calculated during humidity interference calibration of the filters are a

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