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User Manual - Analox Military Systems

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1. 10 Select the Driver tab and click Update Driver File Action Help 3 a I BAR FRB 2 PC109 gt AM Computer b ca Disk drives gt My Display adapters b DVD CD ROM drives Gs Human Interface Devices gt lt q IDE ATA ATAPI controllers gt A Imaging devices gt lt 2 Keyboards Unknown Not available Not available Not digitally signed b n Mice and other pointing devices A Monitors amp W Network adapters l Other devices i ig YELLOW gt IR Processors a Sound vide JM System dev W Universal Se To view details about the driver files Update Driver Software Disable Uninstall To update the driver software for this device If the device fails after updating the driver roll back to the previously installed driver Scan for hardware changes Properties Disables the selected device To uninstall the driver Advanced Opens property sheet for the current selection 11 Click Browse my computer for driver software CJ L Update Driver Software YELLOW How do you want to search for driver software gt Search automatically for updated driver software Windows will search your computer and the Internet for the latest driver software for your device unless you ve disabled this feature in your device installation 12 Click Browse and locate the SDA driver folder This will be the folder named Drivers on t
2. SDA User Manual Br Sensor warm up High Alarm Low Alarm Figure 22 Example of a sensor that is in a warm up state 34 Alarms Each SDA comes with two alarms defined for each sensor attached Each alarm is defined by a set point and a direction The name set point and direction of both alarms are shown on the main display screen as shown in Figure 17 and Figure 18 Every second as the sensor reading is updated each alarm is checked against the current reading For high going direction alarms an alarm condition will be triggered if the sensor reading is greater than the alarm set point Conversely for low going direction alarms an alarm condition will be triggered if the sensor reading is less than the alarm set point High Alarm Alarm Low Alarm Figure 23 A low going alarm that has been triggered When an alarm condition is identified the horn will immediately sound and the system status indicator will flash coloured red showing the word alarm In addition the sensor reading will be displayed coloured red and the set point for the alarm that has been triggered will be highlighted Figure 23 shows an example of a low going alarm that has been triggered by a low oxygen reading Document Ref XK0 801 08 November 2012 N A LO Page 34 SDA User Manual 2055 2083 ppm CO2 ppm CO2 HiHi Alarm 2500 ppm HiHi Alarm Alarm Hi Alarm Hi Alarm Alarm Figure 24 Example of two
3. Bridge distribution zone Document Ref XK0 801 08 November 2012 N A LO Page 14 SDA User Manual 1 3 Monitor Controls Overview Figure 6 shows an overview of the controls located on the front panel of an SDA Figure 9 SDA front panel overview 1 Colour TFT LCD display 2 Adjustment knob 3 Calibration adjustment toggle switch 4 Set button 5 Alarm adjustment toggle switch 6 Mute button Document Ref XK0 801 08 November 2012 Page 15 NALO SDA User Manual 2 Installation Please observe the safety information in section 9 before installation 21 Mounting 2 1 1 Rack Mounting Rack versions are designed to be mounted onto standard 19 mounting rails The systems are 3U high and 21hp wide so 4 modules will occupy the full width of the standard 84hp wide 19 rail 2 1 2 Panel Mounting Panel versions are suitable for direct mounting into instrument panels and they will fit the same apertures used by the older series of Analox 1000 and 5001 analysers The cut out aperture should measure as follows e Height 112mm e Width 102mm Mounting centres for panel mount variants should be as follows e Holes 4 x 6mm e Height 122 5mm e Width 91 4mm e Centred On cut out 91 4 45 7 45 7 112 61 25 122 5 61 25 102 Figure 10 Panel mounting holes Document Ref XK0 801 08 November 2012 N AZ LO Page 16 SDA User M
4. SDA User Manual Replace cell High Alarm v Low Alarm Figure 31 The main menu The highlighted menu option can be changed by rotating the adjustment knob Clockwise moves the cursor downwards and anti clockwise moves it upwards An arrow at the top or bottom of a menu indicates that there are more menu options above or below those currently shown To select a menu item highlight it and press the set button Depending on the menu item selected the selected action will be performed or a sub menu will be displayed Figure 31 shows the main menu with the backlight menu item highlighted Pressing set displays the backlight sub menu as shown in Figure 32 which shows that a backlight value of 40 has been selected Pressing the set button will set the display backlight to 40 The backlight menu will remain on screen and can be closed by selecting exit or by pressing the mute button 20 88 SH 5DADDOOI Ver D 2l Set backlight Wn 40 20 High Alarm Low Alarm Figure 32 The backlight sub menu Selecting the back option from a sub menu will return to the previous menu level The mute button can be pressed at any time whilst using the menu to return to the main screen NALO Document Ref XK0 801 08 November 2012 Page 41 SDA User Manual 3 7 Adjusting the backlight The brightness of the SDA display can be changed to suit the lighting conditions of its location by adjusting the backligh
5. Dimensions 65 x 50 x 35 mm Weights 99 A L0 2 years for the electrochemical cell in atmospheric air Remote sensor 0 2 to 1 0 litres minute gas flow rate Note that if the sensor is to be stored below 10 C then the electrochemical cell should be removed from the unit and stored in a warmer environment so as to prevent the electrolyte from freezing and causing damage to the cell 8 3 MEC carbon monoxide sensor SV DC 4500mV Operating Maximum 20mA at 5V DC supply Current Detection Mode Electrochemical Range and 20ppm CO 1ppm CO 5 of reading 0 5ppm of reading C Accuracies Communication RS485 serial data 9600bps no parity 1 stop bit Link Distance up to 500m Environmental Rating IP65 Conditions Operating temperature 5 to 55C Storage temperature 10 to 70 C Operating pressure 700 to 1300 mbar absolute Humidity O to 99 RH at 55 C non condensing Dimensions 65x50x35 mm Weights 2 99 9 O Sensor Life 2 years for the electrochemical cell in atmospheric air Sensor Life sensor 0 2 to 1 0 litres minute gas flow rate Note that if the sensor is to be stored below 10 C then the electrochemical cell should be removed from the unit and stored in a warmer environment so as to prevent the electrolyte from freezing and causing damage to the cell Document Ref XK0 801 08 November 2012 N A LO Page 66 SDA
6. SDA User Manual Analox Ltd 15 Ellerbeck Court Stokesley Business Park North Yorkshire TS9 5PT UK T 44 0 1642 711400 F 44 0 1642 713900 W www analox net E info analox net SDA User Manual List of Contents 1 REO TION ren ee 2 1 1 Packing OV SM VIC Wo een ren 3 1 2 System OV rVISWS E 5 1 3 Monitor Controls Overview uenseessssenssnnenunnenennnnenennonennnnnnennnnenennonennnnnnennnnenennenennnnnn 15 Ec uoq 16 2 1 MOUNINO 16 2 2 Monitor and Sensor Wiring esssssssssssssssseee eee nnne nnn nnn nnne nis 19 2 3 Output Module Wiring 0222022200020000000 00000 nnnnnnnne nenne nenne nnnnnnnnn nnis 23 2 4 BE Li T 25 2 5 mie 29 2G 0 0 dec ee 30 3 1 jcaruom 30 3 2 Bo RYN ee 31 3 3 SECHSOF tc AUS ee ee ONE YY RS YN E 33 3 4 P TID 34 3 5 CANN AMON ACS UNM MN RETO 38 3 6 ASS DT 0 EE c NWYF 40 3 7 FROIUIS UIC Ne D ACKHO HL ee ee 42 3 8 Viewing device information 222z022200000000000 00000 LLALL LARLL LA AAA anne nenne nenne nnns 42 3 9 ris 0901 Gans 42 3 1
7. 8 4 Carbon dioxide SONS OV u ae anal 67 8 5 Temperature amp Humidity probe seessesssesssssssseeeneee nennen nnne nnns 67 8 6 SDA Output IOC Met 68 SE uc WaMING NETTE 69 9 1 Electrochemical Sensors O2 CO Caustic Electrolyte 69 9 2 Prossunsed GaS PERENNE 70 9 3 FA MOM IMG SS ee E ee een een 70 9 4 ESD and Electric SHOCK een 70 9 5 BTN LN 9 FWD FE CYNT NF FFA TAN FN CNW A FN FFWR FANNA FN NN NN NAF 70 9 6 IP Rating and General Care ssssssssssssssssssseee nennen nennen nennen nnns 70 9 7 DISPOSA ND FNAN A FRAU FA EA ART EY ee 71 10 Warranty Information u ee SC dAn ORCA 72 11 Declarations of Conformity uu2220002400nennenennnnnnnnnnne LLE nennen nennen nsn nennen nnns 14 Document Ref XK0 801 08 November 2012 Page 1 NALO SDA User Manual 1 Introduction The SDA range is composed of a family of atmospheric analysis systems which are suitable for applications where continuous monitoring of atmospheres is reguired Each type of system in the range will provide independent measurement and display of atmospheric variables with clear audible and visual alarms to warn when potentially dangerous levels are reached The SDA range is designed to be highly modular and flexible so that it can be easily integrated into custom atmospheric monitoring solutions The core of each analyser is a compact monitor unit which
8. 24VDC panel mounted power supply unit PSU 2 MEC Oxygen sensor only mounting plate 3 Combined mounting plate PSU SDA Output module and MEC Oxygen sensor 4 SDA Output module bracket panel mount 5 SDA Flow meter plate rack or panel mount Document Ref XK0 801 08 November 2012 N AZ LO Page 4 SDA User Manual 1 2 System Overviews 1 2 1 SDA O There are two types of oxygen monitoring system arrangement based on a SDA Monitor and MEC O sensor depending on which monitoring application is required The MEC O sensor is designed to operate in either atmospheric or hyperbaric environments to depths of 350 msw The atmospheric version of the sensor is ranged to 100 Os and has inbuilt pressure compensation which will automatically adjust to changes in the ambient atmospheric pressure This enables accurate measurement and adjustment when operating in atmospheres between 700 mbara and 1300 mbara When fitted with a flow adaptor as shown in the figure below the 100 O version of the sensor can monitor a sample line from a remote source or chamber refer to section 2 5 for pipe work detail When used without a flow adaptor the MEC Os sensor will measure oxygen in the surrounding ambient atmosphere diffusing across the sensor membrane Warning Ensure that when used with a flow adaptor that sample pressure is reduced down to almost atmospheric pressure before passing to the sensor This will prevent potential damage to the s
9. 6 1 the cell replacement reminder will continue to be shown and needs to be manually reset For SDAs which use electrochemical sensors this warning can be reset from the SDA menu To do this open the main menu and select Replace cell Select the sensor to reset and confirm the action Upon confirmation this will store the current date as the date on which the cell was last replaced Document Ref XK0 801 08 November 2012 N AZ LO Page 46 SDA User Manual 4 Configuration In order to set options on an SDA the SDA software is provided to allow a device to be configured using a USB connection The SDA software is designed to run on Microsoft Windows 4 1 Software installation Note Before connecting an SDA to a computer the appropriate software should be installed 4 1 1 Software requirements The SDA software is designed to run on Microsoft Windows and has the following prereguisites 4 1 2 Microsoft Windows XP Windows Vista or Windows 7 amp Microsoft NET Framework 3 5 SP1 or later Microsoft ActiveSync 4 5 or later Windows XP only Microsoft Windows Mobile Device Centre 6 1 or later Windows Vista amp Windows 7 amp only Windows XP Installation To install the SDA software on Windows XP6 perform the following steps 1 2 3 4 o 6 7 8 Unplug all unnecessary USB devices from the computer If not already installed install Microsoft ActiveSync 4 5 or later This
10. November 2012 N A LO Page 20 SDA User Manual To power two SDA monitors from one power supply the following steps should be followed Cut a suitable length of Remove the 2 way connector Twist the red wire with the 7 0 2mm red black and bootlace ferrules from the white wire and then the two twisted wire cable and strip back 7mm black wires together as shown and crimp with red and black 1 5mm bootlace ferrules as shown Crimp the free end of the Connect the linked end The PSU is now ready red black twisted wires with red to the remaining two and can be connected and black 1 5mm bootlace way connector as to two SDA monitors as ferrules and connect to the two shown described in section way connector supplied with 2 2 2 step 5 the SDA 2 2 3 Protective Earth Warning The M4 stud next to the power connection must be connected to the local protective earth to provide ESD and surge protection This stud also provides the shield connection to the sensor and data port cables and is required to maintain EMC performance 2 2 4 Sensor and Data Wiring The Sensor connector provides the power and communication link to any SDA sensor attached The Data connector will automatically control the SDA Output module if attached otherwise this port will revert to a continuous data output stream that can be utilised by other third party equipment for data logging purposes See section 3 10 for detail on connection baud rate and data formats Docu
11. PC port on the rear panel and connect the other end of the cable to a free USB port on the computer Power the SDA device and allow it to start up Once connected and powered Windows should detect the device and display an information bubble confirming the connection On the first time connecting an SDA to the computer message bubbles may be shown explaining that device drivers are being installed This should take a few moments When the device connects on Window XP systems the ActiveSync window will pop up This window should be closed On Window 76 systems the Windows Mobile Device Center window will be shown This window should be closed If not already open run the SDA software The SDA software will recognise the device and read the current settings form the device Once fully connected the window shown in Figure 3 will be displayed 4 2 1 Connection troubleshooting If the SDA fails to connect please try the following e Disconnect the SDA from the computer e Fo to the folder C Program Files Microsoft ActiveSync Drivers and look for the file called wceusbsh sys e Select this fie copy it and paste it into the following folder C Windows System32 drivers e Restart the computer e When restarted connect the powered up SDA to the computer e Follow the user manual instructions for installation of the device drivers This time the installer should locate the correct file and install correctly NALO Document Ref XK
12. be entered is limited to zero as a minimum value and the maximum range of the sensor plus 10 for the maximum calibration value For certain sensors e g carbon dioxide the low calibration must be performed with zero concentration of the target gas In these cases the calibration adjustment value cannot be changed by rotating the adjustment knob and the display will show the word zero To begin the calibration adjustment process press the set button If the calibration toggle switch is released at any time before the set button is pressed then the adjustment will be aborted Once an adjustment has begun the sensor will take a moment to process the adjustment reguest Figure 29 2 and will decide whether the value supplied is reasonable See troubleshooting Section 5 for possible invalid calibration conditions If a calibration adjustment is accepted then a Calibration OK message will be shown Figure 29 3 Should an adjustment reguest be rejected then a Calibration failed message will be shown instead Figure 29 4 Both of these messages can be cleared by pressing the mute button After any calibration adjustment reguest is processed the sensor may enter a warm up state for a few seconds during which time the sensor reading will not be available Document Ref XK0 801 08 November 2012 Page 39 NALO SDA User Manual Note The calibration adjustment window can also be accessed from the main menu For dual sensor systems w
13. equipment will be free from defects in workmanship and materials The warranty does not extend to and we will not be liable for defects caused by the effects of normal wear and tear erosion corrosion fire explosion misuse use in any context or application for which the equipment is not designed or recommended or unauthorised modification Following a valid warranty claim in accordance with the above the equipment upon return to us would be repaired or replaced without cost or charge but in our discretion we may elect instead to provide to you which ever is the lesser of the cost of replacement or a refund of net purchase price paid as per our Invoice on initial purchase from us We shall have no liability for losses damages costs or delays whatsoever We shall have no liability for any incidental or consequential losses or damages _ All express or implied warranties as to satisfactory or merchantable quality fitness for a particular or general purpose or otherwise are excluded and no such Warranties are made or provided save as set out in this clause In order to effectively notify a warranty claim the claim with all relevant information and documentation should be sent in writing to Analox Ltd 15 Ellerbeck Court Or by e mail to info analox net Stokesley Business Park Or by Fax to 44 1642 713900 otokesley North Yorkshire TS9 5PT We reserve the right to require from you proof of dispatch to us of the notification of wa
14. flow adaptor removed to fit the tubing onto the spigots 1 Connect pipe work to 2 Connect flow adaptor to the inlet of the MEC O2 flow adaptor sensor The MEC sensor sample input line can also be piped to a dedicated SDA flow adaptor unit or connected to the exhaust of the SDA CO sensor module 2 5 2 Carbon dioxide sensor module pipe work The CO sensor module should be connected as per the following steps 3 Fit Gas Input and Exhaust 4 Secure pipe work in 5 Finished connections pipe work to bulkheads place with securing nuts Document Ref XK0 801 08 November 2012 Page 29 NALO SDA User Manual 3 Operation 3 1 Start up An SDA will automatically start up when power is supplied to it Initially the SDA will display a splash screen which will be displayed for a few seconds after which the display will go blank for up to 15 seconds The SDA will then show the main display as described in section 3 2 1 Upon start up an attached sensor may require a short time to warm up as described in section 3 3 2 SOA l NALO f 7 Figure 16 Start up splash screen Document Ref XK0 801 08 November 2012 N AZ LO Page 30 SDA User Manual 3 2 Display 3 2 1 Main display screen Under normal operation the SDA will display its main display screen Figure 17 explains the elements of the main screen for a single sensor SDA Figure 18 explains the elements of a dual sensor SDA o High Alarm v Low A
15. software to display a custom identification label This can be used to help identify individual units in a large panel Figure 21 shows an example of a custom identification label For instructions on how to configure the identification label see section 4 3 1 Oxygen Figure 20 Default device identification label for an SDA O2 Custom Chamber 1 Figure 21 Example of a custom identification label 3 3 Sensor readings 3 3 1 Sensor reading update When a sensor is attached to an SDA a live reading from the sensor will be displayed in the centre of the main display This reading will be updated on the display once per second If no valid sensor reading is currently available then three dashes will be shown instead 3 3 2 Sensor warm up Under certain circumstances when the digital sensor attached to the SDA cannot display a valid reading then the display will show that the sensor is in a warm up state Warm up occurs when the SDA is initially powered up and may last 10 to 60 seconds depending on the sensor type attached Under certain circumstances the sensor may enter a warm up state whilst it processes information such as after a calibration adjustment has been attempted or when a sensor is re connected after being disconnected Whilst in a warm up state the display reading is shown as three dashes and a warm up processing animation is displayed Figure 22 N AZ LO Document Ref XK0 801 08 November 2012 Page 33
16. the lock ring 6 Using a terminal screwdriver push down the clamp release button to release the clamp Push the ferrule of the cell wire in to the clamp and remove the screwdriver from the clamp release button Gently pull on the wire to ensure that the wire is held by the clamp Repeat this for both the red and black wires taking note of the correct polarity as shown below i m e P j o S o A o o Lie gt E yr Red ve Black ve Figure 46 Connecting a new cell T Fit the enclosure lid and secure in place using the corner screws 8 Following an oxygen cell replacement a full calibration MUST be performed as described in section 3 5 9 If the cell replacement reminder option is in use then the reminder must be manually reset after replacing the cell as described in section 3 13 1 Document Ref XK0 801 08 November 2012 Page 59 NALO SDA User Manual 6 2 Carbon monoxide cell replacement The part number for your sensor s replacement cell is 9100 2030 When a replacement cell is received check that the cell has not leaked The cells are themselves sealed and do not under normal circumstances present a health hazard however if leakage of the electrolyte has occurred use rubber gloves and wear chemical splash goggles to handle and clean up Rinse contaminated surfaces with water If contact is made with the electrolyte please refer to section 9 1 for safety and handling guideline
17. 0 Send Data OM TU een ee ee ne 43 3 11 l iie unes e 43 3 2 FONE OS ses re secs ee ee ee ee Y TN 45 3 13 Cell replacement reminder s024200200002000000n0n0nnnnnn HAR LLA nennen nnne nnns 45 A erue ee ee ee ee ee RH CH ea AT 4 1 Software gur g EFF _ PN YU FN CR RR ER ee 47 4 2 Making a COMME CUO IN NN ETT 51 4 3 Changing OD eg nee Ny RE ee ee ee ee GAED 52 4 4 Downloading data logs sesssssssssssesssseneee nennen nennen nnn nnn nnne nnns 54 4 5 ciui pre LIT MENOR TTE nee en EE 55 oM Ie eiae erento ernennen Ne lee 56 5 1 FAUR CONONIONS S o6 5 2 milies PC ake Y EFO AY YF EUO FY E R EF E E YT NN Y 56 5 3 Problems and acllOMlS een nennen e ny Sn Gn LY io NU DG 57 DB GIRL O ee ee een ee DU 58 6 1 Oxygen cell replacement 2z022200200000000 00000 nnnno ennemis 58 6 2 Carbon monoxide cell replacement 002400024000en0 nenn LL LL nenne nenne nennenenennen 60 6 3 RECOHNGUFING A UNI sea 62 1 Spares and ACCeSSOFLIOS nn inneren re CMC Add y y fei Gn MUR KDE 63 8 DC INC aT Onl mmm 65 9 1 SDA eis enable nee ea sects aston al reis ek RE Soc moron CANY NN 65 8 2 MEC Oxygen SENSO Ele ee ee ne ke nse ed 66 8 3 MEC carbon monoxide sensor 222u02240020000nnno nenne nenn nnnn nenne nenne LL LE LL FR nenne nenne nennen 66
18. 0 801 08 November 2012 Page 51 SDA User Manual 4 2 2 Disconnecting To disconnect an SDA from the computer first wait until all settings have been saved correctly and that any file downloads have completed then remove the USB cable from the computer 4 3 Changing options On connection to an SDA a copy of all of the device s options is created in the SDA software The options are presented over a set of tabs To view the options tabs click the Options button Using these tabs the options can be viewed and modified as reguired No changes are made to the device s options until the changes are applied to the device To apply any changes made click the Apply Changes button shown in Figure 37 This will upload the new options to the device The SDA will confirm that the options have been saved by playing a confirmation sound Any changes made to options can be discarded as long as they have not yet been applied to the device To re download the current device settings form an SDA click the Read Options button shown in Figure 37 General options 7 Custom label Alarm options Date and time Latching alarms Repeating alarms fe Set Time Figure 37 SDA software with device connected showing general options 4 3 1 General options The general device options are displayed by clicking on the General tab Figure 37 shows the general options Custom label A custom label can be enabled by checking
19. 012 N A LO Page 18 SDA User Manual 2 2 Monitor and Sensor Wiring Warning Long signal and power cables can increase EMC emissions and be more susceptible to EMC interference For power and signal cable lengths greater than 1 5 metres signal ferrites are recommended to be clipped onto the cable see section 1 2 1 2 2 1 Monitor Connectors Overview The SDA Monitor provides the connectors for all the system interconnections at the rear of the unit as shown in the figure below Network Data Sensor Protective DC Earth 12 32V e E Figure 12 SDA monitor rear connectors PC Communication Connector Description Tech USB Type A socket Reserved PC USB Type B socket USB connection to a PC Used for configuration and downloading historic data optional Network RJ45 socket Reserved Sensor and Peripheral Connectors Connector Pin Function Comments Monitor Data 1 V 5V DC supply output used to power the SDA Phoenix MVC 5 Output Module max 390mA way RS485 A Differential TxD RxD aka inverting pin 3 5mm pitch a RS485 B Differential TxD RxD aka non inverting pin RS485 Ref Common reference signal to connect to remote RS485 device If not required it should be looped back to pin 5 OV Spy OV DC connection for the supply output Monitor Sensor 5V DC supply output used to power an SDA Phoenix MVC 5 sensor max 390m4A way RS485 A Differential TxD RxD aka inverting pin 3 5mm pit
20. 11 NALO SDA User Manual Sensor characteristics and helium effect The carbon monoxide cell is a capillary type sensor These types of sensors are affected by the presence of Helium He and in such cases give higher than anticipated outputs For a detailed explanation of what the helium effect is and how it affects the measurements of carbon monoxide please refer to document ACO MISC01 00 Helium sensitivity effect available from Analox The basic effect of He in the sample gas is to increase the carbon monoxide sensitivity This means that as the amount of He increases the sensitivity of the CO cell increases by what we call the compensation factor see Table 1 For example if an SDA CO measured 3ppm CO in a tank containing 99 He the actual CO content would be 2 1ppm 3 x 0 7 2 1ppm The look up table below Table 1 shows a simplified representation of the helium effect to guickly identify the compensation factor to be applied to your gas measurement NOTE The compensation factors in Table 1 are based on a SDA CO calibrated with a mix containing 79 He balance Helium Compensation in mix factor 79 to 83 83to89 3 09 891094 08 94 to 99 Table 1 The helium effect increases as the He content in the sample gas increases so it is important that the correct calibration gases are used For this reason the instrument MUST be calibrated using 21 O2 in He balance calibration gas This ensures that
21. 12 Page 55 SDA User Manual 5 Troubleshooting 5 1 Fault conditions An instrument constantly monitors itself for fault conditions Any fault conditions that are identified will trigger a fault alarm When a fault alarm is raised the horn will sound immediately Faults will be indicated on the display by flashing the system status indicator in yellow as shown in Figure 42 Fault alarms can be muted in the same way as standard alarms by pressing the mute button When pressed the horn will deactivate and the system status indicator will be shown as solid yellow to indicate that the fault has been acknowledged All fault alarms are latching so if an intermittent fault is indentified and subsequently cleared the alarm will continue to be displayed and sounded until the mute button is pressed to acknowledge the fault Information about the fault condition identified is displayed below the sensor reading as shown in Figure 42 in which a sensor communication fault is shown In cases where a fault prevents a valid reading from being obtained from a sensor then the reading will not be shown on the display and will instead be replaced by r F Sensor comms fault High Alarm Fault v Low Alarm Figure 42 Asystem showing a fault condition 5 2 Fault logging All instances of fault conditions that are identified will be logged to the instrument s diagnostics log Both the point at which the fault is indentified and the point
22. A unit If the problem persists contact your supplier please please please Document Ref XK0 801 08 November 2012 Page 57 SDA User Manual 6 Maintenance 6 1 Oxygen cell replacement Replacement part number for your cell is 9100 9212 9HM When a replacement cell is received check that the sensor has not leaked The sensors are themselves sealed and do not under normal circumstances present a health hazard however if leakage of the electrolyte has occurred use rubber gloves and wear chemical splash goggles to handle and clean up Rinse contaminated surfaces with water If anybody comes into contact with the electrolyte please refer to section 9 1 for safety and handling guidelines 1 Ensure all electrical connections between the MEC and monitor equipment are disconnected 2 Loosen the corner screws of the enclosure and remove the lid 600398 0017 Figure 43 Removing the MEC lid 3 Using a terminal screwdriver push down the clamp release button to release the clamp and gently pull the cell wire from the clamp Repeat this for both the red and black wires Figure 44 Disconnecting the cell Document Ref XK0 801 08 November 2012 N AZ LO Page 58 SDA User Manual 4 Unscrew the green lock ring from the chimney of the cell housing and remove from the enclosure lid gt x Figure 45 Removing the cell from the lid 5 Fit the new cell in to the enclosure lid and secure in place using
23. User Manual 8 4 Carbon dioxide sensor 5V DC 500mV Operating CO Sensor Maximum 390mA at 5V DC supply Current 5000ppm CO 25ppm CO 1 of reading 22 5ppm CO C Accuracies 10000ppm 1 COz 50ppm CO 1 of reading 25ppm CO C Communication RS485 serial data 9600bps no parity 1 stop bit Link Distance up to 500m Environmental Rating IP22 Conditions Operating temperature 5 to 55 C Storage temperature 10 to 70 C Operating pressure 700 to 1300 mbar absolute Humidity O to 95 RH at 55 C non condensing aul ED Panel 120 x 133 x 194mm Panel 2081g 5 years in operation Remote sensor 0 2 to 1 0 litres minute gas flow rate Maximum sample input pressure 6bara 8 5 Temperature amp humidity probe 5V DC 500mV Range and 0 to 100 C 32 to 212 F and O to 100 RH Accuracies 3 C temperature 10 RH humidity 163 3 to 12 seconds Communication RS485 serial data 19200bps no parity 1 stop bit Link Distance up to 500m Environmental Rating IP22 Conditions Operating temperature 5 to 55 C Storage temperature 10 to 70 C Operating pressure Chamber version 35 bar absolute Operating pressure In line version 100 bar absolute Humidity O to 95 RH at 55 C non condensing 5 years in operation Document Ref XK0 801 08 November 2012 Page 67 NALO SDA User Manual 8 6 SDA Output Module 5V DC 500mV Current resolution Link Distan
24. ame sample line See section 2 5 2 for fitting details Document Ref XK0 801 08 November 2012 Page 6 TOP VIEW CO Signal Cable Sample Lines DC Power 12V to 32VDC Carbon Dioxide Module Sample Exhaust Flow 0 2 l min to 1 0 l min j E os Sample In lt 6 bara Carbon Dioxide Carbon Dioxide Monitor Module FRONT VIEW NALO SDA User Manual Figure 2 SDA carbon dioxide system overview 1 2 4 SDA CO The SDA CO is composed of a SDA Monitor and MEC CO module with a 150mm signal cable The sensor is ranged to 20ppm CO and has inbuilt pressure compensation which will automatically adjust to changes in the ambient atmospheric pressure This enables accurate measurement and adjustment when operating in atmospheres between 700 mbara and 1300 mbara When fitted with a flow adaptor as shown in the figure below the 20ppm CO version of the sensor can monitor a sample line from a remote source or chamber refer to section 2 5 for pipe work detail When used without a flow adaptor the MEC CO sensor will measure carbon monoxide in the surrounding ambient atmosphere diffusing across the sensor membrane Warning Ensure that when used with a flow adaptor that sample pressure is reduced down to almost atmospheric pressure before passing to the sensor This will prevent potential damage to the sensor and affects that can cause elevated sensor readings A flow rate between 0 2 and 1 0 l min is acceptable 0 5 l min is reco
25. anual 2 1 3 Panel Mounting Procedure 1 To mount the panel variant instrument take the two supplied brackets and remove the backing from the adhesive foam 2 Place the brackets behind the panel and align the M5 holes with the 6mm holes in the panel adhere the brackets to the rear of the panel with the adhesive foam 3 Align the instrument up to the panel and secure in place with the four provided M5x25mm Pozi Pan screws Document Ref XK0 801 08 November 2012 Page 17 NALO SDA User Manual 2 1 4 The Combined Panel Adaptor Mounting Procedure A combined panel mount adaptor plate kit XK0 445K is also available as an accessory to mount a rack mount CO variant into an existing combined panel cut out This can be mounted to the panel as per the steps below 1 Remove the rack mount fixings from the monitor and CO module 2 Place the monitor into the adaptor plate left hand side and align with the four tapped M3 holes 3 Secure the monitor in place with four of the provided M3x8mm Pozi Pan screws and M3 Nordlock washers 4 Place the CO module through the remaining space and align with the remaining four tapped M3 holes 5 Secure in place with the remaining four M3x8mm Pozi Pan screws and M3 Nordlock washers 7 Finally secure the assembly into your panel using the provided M5x25mm Pozi Pan screws and M5 captive nuts Figure 11 Building the combined panel Document Ref XK0 801 08 November 2
26. any measurement errors due to the helium effect are fail safe Document Ref XK0 801 08 November 2012 N AZ LO Page 12 SDA User Manual 1 2 7 Mounting Plate Accessories Two brackets may be used to mount the MEC sensor to SDA Monitor If a power supply or SDA Output Module is reguired the combined bracket can be fitted Refer to section 2 4 for more detail Sample Input Flow 0 2 l min to 1 0 l min Sample _ _ _ Flow Adapter Exhaust DC Power i 12V to 32VDC Sensor Bracket TOP VIEW Sample Input Flow Flow Adapter 0 2 l min to 1 0 l min Sample Exhaust MEC Sensor To a Ju gt mg u ipii u s Qu TH HE DC Power aa toe 12V to 32VDC ee sis Universal Bracket TOP VIEW Figure 7 Mounting plates and accessories overview NALO Page 13 Document Ref XK0 801 08 November 2012 SDA User Manual 1 2 8 Operation in the Bridge Zone The SDA systems meets EMC reguirements for the general power distribution zones defined in type approval specifications for Lloyd s Register DNV and ABS classification societies To fit into the bridge zone a filter must be fitted to comply with rules on radio interference as shown below to the DC supply Refer to section 2 for detailed system wiring SDA Monitor REAR VIEW MEC Sensor Signal Cable Oxygen Sensor Optional Bridge Zone Filter AST 2533 1005 DC Power 12V to 32VDC Figure 8
27. at which the fault is cleared will be logged The diagnostics log can be downloaded using the SDA software To download the log connect to the device as described in section 4 Access the Advanced tab and click Download diagnostics log This will give the option to specify a save location for the log file Document Ref XK0 801 08 November 2012 N A LO Page 56 5 3 Problems and actions Sensor comms fault shown on the display Sensor range fault shown on the display Sensor fault shown on the display Sensor fatal error shown on the display NALO SDA User Manual A serial communication link has been lost with the sensor Check that the sensor connector is firmly connected to the sensor port at the rear of the unit Check that all screw terminal connections and cable crimps are securely fitted to the sensor connector and that the wires are connected to the correct terminals Check that the cable that connects to the sensor is not damaged The sensor is detecting a condition outside of its effective range Check that the sensor is not being exposed to conditions outside of its effective range Re calibrate the unit Restart the SDA device If the problem persists contact your supplier The sensor has detected a fault in its operation Restart the SDA unit If the problem persists contact your supplier The sensor has detected a fault in its operation Restart the SD
28. ators optional volt free contacts for individual alarms with SDA Output Module Operator 2 x momentary action toggle switches for alarm and calibration functions Controls 2 x momentary action push buttons for mute and function selection 1 x rotary encoder for value adjustment and menu navigation Environmental Rating IP22 Conditions Operating temperature 5 to 55C Storage temperature 10 to 70 C Operating pressure 700 to 1300 mbar absolute Humidity O to 95 RH at 55 C non condensing du i c NNNM Panel 120 x 133 x 31mm Mar A O O Panel 665g Speaker 1W used for user interface navigation Buzzer 88dB at 10cm frequency 2400 400Hz alarm and fault indication Operational life The product is expected to achieve an operational life of at least 10 years with anticipated continuous usage for periods of 30 days in typical applications Document Ref XK0 801 08 November 2012 Page 65 NALO SDA User Manual 8 2 MEC oxygen sensor 5V DC 500mV Current Range and 100 O2 0 035 O2 1 of reading 0 15 of reading C Accuracies 3000mbar ppO 0 35mbar ppO 1 of reading 0 15 of reading C Communication RS485 serial data 9600bps no parity 1 stop bit Link Distance up to 500m Environmental Rating IP65 Conditions Operating temperature 5 to 55 C Storage temperature 10 to 70 C Operating pressure 700 to 1300 mbar absolute Humidity O to 99 RH at 55 C non condensing
29. ce up to 500m Environmental Conditions 2 x relays 1 per alarm volts free changeover contacts maximum ratings VAC 60 VDC 1 A 62 5 VA 30 W 1 x 4 to 20mA Isolated output short circuit protected maximum load resistance 5000 standard 1k O high compliance 1 x status LED Rating IP22 Operating temperature 5 to 55 C Storage temperature 10 to 70 C Operating pressure 700 to 1300 mbar absolute Humidity 0 to 95 RH at 55 C non condensing Dimensions 98 x 64 x 38 mm Weights 118g without cables Document Ref XK0 801 08 November 2012 N A LO Page 68 SDA User Manual 9 Safety warnings 9 1 Electrochemical Sensors O CO Caustic Electrolyte Electrochemical sensors contain caustic compounds Under normal conditions the sensor will be safely sealed To prevent leakage the unit must not be exposed to temperatures outside the specified range or be exposed to organic vapours which may cause physical damage to the body of the sensor The unit must not be stored in areas containing organic solvents or in flammable liguid stores When the life of the sensor has expired or it is leaking or otherwise damaged it must be disposed of safely in accordance with local regulations The carbon monoxide cell contains an acidic electrolyte sulphuric acid whilst the oxygen cell contains alkaline electrolyte potassium hydroxide In the event of an accident use the following first aid procedures B
30. ch 4 RS485 Ref Common reference signal to connect to remote RS485 device If not required it should be looped back to pin 5 OV 5 V OV DC connection for the supply output Protective Earth M4 Chassis Connects the system casework to the local Stud Earth protective earth Sensor cable shields are also connected here Phoenix MVC 2 15 W maximum 3 W typical File o 3 5mm pitch Document Ref XK0 801 08 November 2012 NALO enit Page 19 SDA User Manual 2 2 2 The Power Connection The monitor can be directly powered from a DC source using the supplied two way Phoenix connector as shown in the steps below 1 Supplied DC connector 4 Secure using a terminal driver 5 Connect to the DC input on the rear of the monitor The monitor can also be powered from an AC source The AC adaptor XK0 662 can be purchased as an accessory from Analox this is only suitable for UK 230VAC mains power this will connect directly into the DC input on the rear of the monitor This can be mounted in a location of your choice or to the combined mounting bracket XK0 472K as detailed in section 2 4 A universal plug in PSU XK0 667 is also available this can be purchased as an accessory from Analox To change plug type on this PSU follow the steps below Select the correct plug type and insert into PSU as shown This can now be connected directly into the SDA as shown in section 2 2 2 step 5 Document Ref XK0 801 08
31. connected to protective earth The stud on the rear of the case provides the main connection to protective earth which must be connected to maintain EMC performance 9 5 Servicing Only the electrolytic cell of the MEC oxygen sensor is designed to be user replaceable Please consult Analox if any other parts from a SDA module require replacement 9 6 IP Rating and General Care The SDA Monitor is designed to provide an IP22 rating for the front panel of the SDA Monitor The Monitor should be fitted into a suitable rack or panel to cover the rear of the unit to provide protection over the rear connectors to at least IP22 Although designed to be water resistant the MEC oxygen sensors should not be intentionally immersed in liquid or left outside unprotected To clean any of the SDA equipment use a damp soft cloth Document Ref XK0 801 08 November 2012 N AZ LO Page 70 SDA User Manual 9 7 Disposal en According to WEEE regulation this electronic product can not be placed in household waste bins Please check local regulations for information on the disposal of electronic products in your area Document Ref XK0 801 08 November 2012 Page 71 NALO SDA User Manual 10 Warranty Information We provide the following Warranties for the SDA and associated accessories A 1 year electronics warranty A 2 year graded sensor warranty In both cases the warranty period runs from the date of our invoice We warrant that the
32. d Accessories Spares Service Replacement Description Part Number Intervals O MEC sensor module 0 100 O O MEC sensor module 0 3000mbar ppO O Monitor Rack 96O CO Monitor Rack 5000ppm CO CO Monitor Rack 10000ppm CO3 CO Module Panel 0 10000ppm in He Data logging option is available with all monitors please enquire Only the 9212 9HM electrochemical cell replaced sensor electronics and case are reused Only the 9100 2030 electrochemical cell replaced sensor electronics and case are reused Accessories Description Part Number O amp PSU Bracket Kit XK0 472K Flow Meter Panel Panel Mount Flow Meter Panel Rack Mount Document Ref XK0 801 08 November 2012 Page 63 ANALOX SDA User Manual Recommended calibration gases Oxygen tem Description Patnoe O O y O 0 5LPM 110L bottle regulator SA7L705XFLIND Zero calibration gas 100 nitrogen SA7L10308 Span calibration gas 100 oxygen SA7L110160 Carbon dioxide N2 variants 0 5LPM 110L bottle regulator SA7L705XFLIND 2 _ Zero calibration gas 100 nitrogen SA7L10308 m Span calibration gas 0 5 CO2 SA7L10303 balance N2 5000ppm Pid Span calibration gas 1 CO2 SA7L110108 balance N2 10000ppm A Carbon dioxide He variants tem Description _ _ _ Partno o O S 0 5LPM 110L bottle regulator SA7L705XFLIND 2 Zero calibration gas E helium SA7L110120 Span calib
33. d relay output for one sensor If attached to a dual sensor unit the output module will provide outputs for the first sensor only NALO Document Ref XK0 801 08 November 2012 Page 43 SDA User Manual 3 11 1 Connecting an output module To connect an output module the SDA should first be disconnected from the DC power supply The output module communication cable should be connected to the Data port on the rear of the SDA see section 2 2 4 for instructions on connecting to the Data port When power is applied to an SDA with an output module is connected it will automatically recognise that the module is connected A few seconds after the main screen is shown on start up the output module will begin to reflect the sensor reading and alarm status The connection status of an output module can be viewed on the information screen see section 3 8 3 11 2 Relays An output module provides two relays Each relay is mapped to one of the SDA alarms Relay 1 is mapped to the lower alarm and Relay 2 is mapped to the higher alarm Figure 34 If an alarm is not active then its corresponding relay will be in the energised state connection between Com and NO is made If an alarm is triggered then the corresponding relay will switch to the de energised state connection between Com and NC is made pe Relay 2 High Alarm Low Alarm Figure 34 Alarm relay mapping If any system fault is detected then both relays will switch
34. d the amount of log data inside each file This process may take several minutes It s should also be noted that downloading a full data log may download up to 50MB of log data Please ensure that there is enough storage space on the target disk before beginning a download Options 2011 03 23 csv Al Refresh T Figure 40 Downloading data logs from an SDA Although the internal data logging operates a rolling log with automatic cleanup of older data the data logs on the device can be managed manually using the SDA software To delete unwanted files from a device select the files for deletion and click the Delete button 4 5 Setting the time The SDA s internal date and time is used for data logging and for issuing various reminders The internal clock can be set to the appropriate date and time using the SDA software With an SDA connected to the SDA software select the General tab Click the Set Time button This we display the window shown in Figure 41 The default time shown will be the system date and time of the computer running the software This date and time can be changed if reguired To set the date amp time on the device click OK The SDA will play a sound to acknowledge that the date and time have been set successfully Select date amp time Device date and time 14 20 23 March 2011 0K Caned Figure 41 Setting the date and time on an SDA NALO Document Ref XK0 801 08 November 20
35. der Call replacement reminder Figure 38 Reminder options Calibration reminder N AZ LO Document Ref XK0 801 08 November 2012 Page 53 SDA User Manual The Calibration adjust reminder checkbox enables or disables the calibration adjust reminder as described in section 3 5 2 If the calibration adjust reminder feature is enabled a reminder interval should be set This defines the time in hours since the last full calibration adjust before a calibration adjust reminder will be displayed on the SDA Setting this value to zero will automatically disable the feature Cell replacement reminder The Cell replacement reminder checkbox enables or disables the cell replacement reminder as described in section 3 13 If the cell replacement reminder feature is enabled a reminder interval should be set This defines the time in days since the cell was last replaced before a cell replacement reminder will be displayed on the SDA Setting this value to zero will automatically disable the feature Note For sensors where there is no cell to replace such as carbon dioxide this feature will not be available and cell replacement reminders will not be shown on the SDA This feature applies only to sensors with electrochemical cells which deplete over time 4 4 Downloading data logs If an SDA is enabled with internal data logging then the data stored on the device can be downloaded using the SDA software To view the data log management cont
36. efore the high calibration gas in such a case is likely to be chosen between 3 and 5 oxygen in helium which ensures that the analyser is calibrated close to the point of interest It is vital that at shallower depths the analyser is recalibrated since any errors at this calibration point will be magnified at shallower depths when the oxygen content is higher Note that the MEC and the SDA CO sensor modules contain an atmospheric pressure sensor which will automatically compensate for pressure effects on the gas during calibration observe safety warnings on helium ingress see section 9 3 To calibrate the partial pressure oxygen sensor MECO2ABAP the operator must enter the correct partial pressure gas value at the SDA Monitor If the sensor is in a hyperbaric atmosphere for example in a Saturation Dive Chamber this value may be derived from other sensors monitoring the chamber If the sensor is at atmospheric pressure and bottled calibration gas is used then the certified partial pressure value of the calibration gas must be calculated by the operator when the calibration step is performed Note that the partial pressure MEC Os sensor does not include automatic atmospheric pressure compensation A gas containing 50 O would be equivalent to 500mbar at the sensor under exactly 1bara atmosphere The operator must adjust the calibration value according to the current atmospheric pressure so for this gas if the pressure is 1017mbara 1 017bara
37. ensor and affects that can cause elevated sensor readings A flow rate between 0 2 and 1 0 l min is acceptable 0 5 l min is recommended DC Power TOP VIEW 12V to 32V DC Oxygen Signal Cable MEC Oxygen Sensor Flow Adaptor Sample Input Sample Exhaust Sample Input Flow 0 2 l min to 1 0 l min Oxygen Monitor MEC Oxygen Sensor FRONT VIEW Figure 1 SDA oxygen system overview NALO Document Ref XK0 801 08 November 2012 Page 5 SDA User Manual 1 2 2 The SDA CO is composed of a SDA Monitor and a CO module with a 220mm signal cable The module contains the carbon dioxide sensor and is designed to fit alongside the monitor in a rack or panel depending on which type is supplied Where longer distances are required between the CO module and the monitor the cable connection can be extended with the use SDA CO of a terminal block with a cable of 2 twisted pairs with an outer shield The sample lines are compatible with 6mm OD 4mm ID flexible tubing The input sample passes through the flow meter first and can take a maximum input pressure of 6 bara Warning The flow must be regulated on the flow meter to be greater than 0 2 l min and less than 1 0 l min a flow of 0 5 l min is recommended When both SDA O and SDA CO systems are fitted in the same rack or panel the exhaust line from the CO system may be connected to input of the O flow adaptor to if it is required to monitor the s
38. ews and Nordlock washers sensor earth to earth stud Document Ref XK0 801 08 November 2012 Page 25 NALO SDA User Manual 2 4 2 Fitting the combined MEC and power supply mounting bracket The combined MEC and power supply bracket XK0 472K can be used to mount the optional AC power supply MEC sensor and or an output module Mount the bracket to the monitor follow the steps below 1 Remove 2 x M3 x 6mm Pozi Pan Screws 2 Align mounting hole with standoff and Nordlock washers from rear of monitor 3 Secure in place with the 2 x M3 x 6mm Pozi Pan Screws and Nordlock washers from rear of monitor 2 4 3 Fitting the MEC sensor to the rear of the bracket 1 Remove lid from 2 Insert the supplied M4 cap screws into each 3 Replace MEC lid MEC mounting hole 4 Align M4 cap Screws 5 Tighten the M4 cap Screws with a 3mm hex key with standoffs 6 Connect the MEC 7 Connect MEC sensor sensor earth to earth stud Document Ref XK0 801 08 November 2012 N A LO Page 26 SDA User Manual 2 4 4 Fitting the SDA output module to the bracket 1 Remove lid from 2 Insert the supplied M4 x 8mm Pozi Pan 3 Align screws with output module Screws into each mounting hole standoffs AES 4 Tighten the M4 Pozi 5 Replace lid on Pan screws output module 6 Connect output module cable 7 Connect output module earth to earth 2 4 5 Fitting the external UK DC adaptor XK0 662 only 1 Al
39. g terminated by a carriage return character ODh and a line feed character 0Ah A terminated character string is output once per second This stream is designed to be read and displayed by a terminal program written to a text file for data logging or captured by a third party software to be interpreted and used in external applications The comma delimited nature of the string allows it to be easily logged to a CSV file for simple import into popular spreadsheet applications The content of each terminated string consists of the following Date YYYY MM DD Time HH MM SS System status OK or Fault The units type of the sensor data to follow 9o ppm etc The average sensor reading The minimum sensor reading since the last data string The maximum sensor reading since the last data string The following shows two examples of typical data strings The second shows a fault condition in which case the sensor readings are not shown 2011 03 23 09 49 31 0K ppm 625 625 625 2011 03 24 10 36 12 Fault p J Note For a dual sensor device the output message is extended with the second sensor s data appended For example 2011 03 23 09 409 1 ORK C 25 4 25 3 7B5 5 5 35 25 30 2011 03 24 102360 12 Fault S5 p a el 3 11 Output module To expand a single sensor SDA to provide relays and an analogue output an optional Analox output module can be connected to the system Note The output module can only provide analogue an
40. he SDA software disc Click Next NALO Document Ref XK0 801 08 November 2012 Page 49 SDA User Manual mc o j Update Driver Software YELLOW Browse for driver software on your computer Search for driver software in this location D Drivers Y Browse 4 Include subfolders gt Let me pick from a list of device drivers on my computer This list will show installed driver software compatible with the device and all driver software in the same category as the device Crea 13 Click Install this driver software anyway when prompted i Windows Security amp Windows can t verify the publisher of this driver software gt Don t install this driver software You should check your manufacturer s website for updated driver software for your device Install this driver software anyway Only install driver software obtained from your manufacturer s website or disc Unsigned software from other sources may harm your computer or steal information W See details 14 The SDA driver will then install 15 When complete the Windows Mobile Device Centre main window may pop up This window can be closed Accept the Windows Mobile Device Centre user agreement if prompted 16 From the SDA software disk run the installer file called Setup 17 The SDA installer wizard will be displayed Follow the on screen instructions to install the SDA software 4 1 4 Installation troubleshooting If the SDA d
41. hen the sensor returns in the opposite direction through the same set point it must go an amount beyond the set point before the alarm will clear This extra amount required to clear an alarm is the alarm s hysteresis Figure 26 shows an example of a hysteresis band on a high going alarm NALO Document Ref XK0 801 08 November 2012 Page 35 SDA User Manual The hysteresis applied to an alarm is adjusted automatically based on the value of the alarm set point Hysteresis for each sensor range is defined by a percentage of set point and a maximum hysteresis value The hysteresis applied to the alarm is the smaller of the two values for a particular set point DM ie Alarm activ ated Alarm de activ ated 22 0 Tees eegee eeaeee 0 5 Hysteresis s Alarm Setpoint Alarm active region Hysteresis point Figure 26 Hysteresis band on a high going oxygen alarm 3 4 3 Latching alarms Alarms can operate in either latching or non latching mode With latching alarms disabled if an alarm is triggered and sensor reading subsequently returns to a level that would not trigger the alarm the visual and audio indicators will be cancelled as soon as the reading passes the hysteresis point see section 3 4 2 With latching alarms enabled if an alarm is triggered and the sensor reading subsequently returns to a level that would not trigger the alarm the visual and audio indicators will continue until the mute button is pres
42. high going alarms In cases where two alarms with the same direction are defined the horn and alarm status will be triggered when the first alarm condition is met If the sensor reading continues in the same direction and the second alarm condition is met then both alarm conditions will be shown as triggered Figure 24 shows an example of two high going carbon dioxide alarms If the first alarm is triggered and the horn is subseguently muted the horn will be re activated if the second alarm is triggered Temperature and Humidity Temperature and Humidity Alarms 30 0 Cl a 20 0 C Alarms yn 20 0 C Figure 25 Example of active alarms on dual sensor system 3 4 1 Muting alarms When an alarm condition is triggered and the horn sounds the horn can be muted by pressing the red mute button This will mute the horn in all occasions where the horn is activated In addition when an alarm is muted the system status indicator on the display will stop flashing and will instead be shown in solid red to indicate that the alarm has been acknowledged 3 4 2 Clearing alarms and hysteresis To avoid nuisance re triggering of alarms when a sensor reading is fluctuating around an alarm set point each alarm has a hysteresis band applied to it This hysteresis applies to the clearing of an already triggered alarm An alarm will always trigger immediately when the sensor reading passes the set point in the correct direction However w
43. ign the PSU mounting holes with the four outer M4 threaded inserts on the bracket S qu 2 Secure in place with the supplied M4 x 8mm 3 Connect to the DC input on the rear of the Pozi Pan screws monitor Document Ref XK0 801 08 November 2012 Page 27 NALO SDA User Manual 2 4 6 Completed assembly of combined MEC and power supply mounting bracket Figure 15 shows an overview of the combined bracket fitted with the MEC sensor AC power supply and SDA output module Figure 15 Assembly with the combined mounting bracket 1 MEC sensor 2 Bracket 3 Optional UK AC power supply 4 Optional output module Document Ref XK0 801 08 November 2012 N A LO Page 28 SDA User Manual 2 5 Pipe work Warning Exhaust lines can produce back pressure at the sensor which will affect the sensor reading Keep this line as short as possible e g less than 150 mm It is acceptable to use no exhaust tube if it is appropriate for the type of sample gas The pressure of the sample gas must be close to the ambient pressure otherwise damage may occur to the sensors and sensor accuracies will be affected The inlet flow rate to the sensors must be between 0 2 to 1 0 l min 0 5 l min is recommended When SDA flow meters are used the input pressures to the meter must not exceed 6 bara 2 5 1 MEC sensor pipe work The MEC sensor is supplied with a two port flow adaptor The tubing should be trimmed to the correct length then the
44. it is performed by using XML configuration files You may need to contact your supplier to be provided with a set of configuration files Re configuration is performed using the SDA software In order for the configuration files to be available to the SDA software they should be placed in a folder named config within the folder from which the SDA software runs This will usually be at the location C Program Files Analox SDA Setup config but may vary depending on the location chosen on installation of the software The SDA software should be closed and re opened once the configuration files are correctly located Once the configuration files are available to the software connect a device and access the Advanced tab Figure 47 From the drop down menu under Device configuration select the appropriate configuration file and click Configure A warning will be shown explaining the implications of re configuring a device Click OK to start the re configuration About Version 0 5 4085 29821 Device configuration Diagnostics Select contig file Download diagnostics log Configure Figure 47 Advanced options The new configuration shall be uploaded to the device and a sound will be played by the SDA when the upload is complete Note Following a re configuration the device should be powered down and re powered before use Document Ref XK0 801 08 November 2012 N AZ LO Page 62 SDA User Manual 7 Spares an
45. ith sensors that can be user calibrated this is the only way to access the calibration adjustment feature 3 9 2 Calibration adjustment reminders For situations where regular calibration adjustments are performed a useful reminder can be enabled using the SDA software For instructions on how to enable and configure the calibration adjust reminder feature see section 4 3 2 When enabled the SDA will show a flashing reminder below the sensor reading when a calibration adjustment is due Figure 30 The reminder is displayed when the time since the last full high and low calibration adjustment was performed exceeds the reminder period specified when the feature is enabled If the feature is disabled no reminder will be displayed A calibration adjustment reminder will only be cleared once a both a high and low calibration adjustment have been performed Both adjustments should be performed with as little time between as possible If not performed together the calibration adjustment reminder will be shown based on the time of the earlier of the two adjustments 20 8 EA Calibration due High Alarm v Low Alarm Figure 30 A calibration adjustment reminder 3 6 Menu The device main menu can be accessed from the main screen by pressing the set button The sensor reading shall remain in screen whilst the menu is display as show in Figure 31 Document Ref XK0 801 08 November 2012 N AZ LO Page 40 SH SDA00001 Ver 0 271
46. larm Figure 17 Main display overview Device identification label Live sensor reading Sensor type and display units System status indicator Alarm direction indicators Alarm names Alarm set points 1 2 3 4 5 6 7 Document Ref XK0 801 08 November 2012 Page 31 NALO SDA User Manual Figure 18 Main display overview Device identification label Live sensor reading Sensor type and display units System status indicator Alarm direction indicators Sensor 1 alarm values Sensor 2 alarm values NOOR WD N Dt N St St Document Ref XK0 801 08 November 2012 N A LO Page 32 SDA User Manual 3 2 2 System status indicator The system status indicator shows the current status of the SDA system If any alarm condition has been identified then the system status indicator will turn red and display the word Alarm If any system fault is identified then the status indicator will turn yellow and display the word Fault In no current alarm or fault conditions have been identified then the system status indicator will turn green and display the word OK Figure 19 shows the different system status indicator states a Figure 19 System status indicator 3 2 3 Device identification label At the top of the main display screen is the device identification label By default this label indicates the type of SDA as shown in Figure 20 An SDA can be configured using the SDA
47. least 550R greater than 12V compliance voltage 2 3 3 Relay Outputs There are two identical controllable relay outputs with a single change over contact each with the COM common line connected to either NO normally open or NC normally closed For true failsafe the NO COM contact pair can be used to indicate an OK state when closed so that disconnections or open circuit cable faults will provide the fault state For details of the operational states of the relays when connected to an SDA see section 3 11 2 Document Ref XK0 801 08 November 2012 N AZ LO Page 24 SDA User Manual 2 4 Brackets There are two brackets available for the SDA one for only mounting the MEC oxygen sensor the other will fit the sensor power supply and output module as required 2 4 1 Fitting the MEC only bracket The MEC only bracket XK0 473K is suitable for mounting the MEC sensor to the rear of the monitor The MEC sensor must be fitted to the bracket before fitting the bracket to the rear of the monitor This is detailed in the steps below 1 Bracket kit XIKO 2 Remove MEC lid 4 Replace MEC lid 5 Secure with 3mm Hex key amp M4 Nyloc nuts 6 Finished assembly The bracket and the MEC sensor can then be attached to the rear of the monitor as per the steps below 7 Remove 2 x M3 x 6mm Pozi Pan Screws and Nordlock washers from rear of monitor r z vy LI LI MS ne 10 Connect MEC 11 Connect MEC sensor Scr
48. leep mode which will allow the device to remain powered but silent No alarms will be raised whilst in sleep mode Also in sleep mode the display will be powered down and any data logging enabled will be paused The unit and sensors will remain powered to allow for a quick wake up from sleep mode All buttons except for the set button will be disabled whilst in sleep mode To switch the device into sleep mode access the main menu see 3 6 and select Power followed by Sleep To wake the device from sleep mode press the set button The display will be switched on monitoring for alarms will begin again and data logging will re commence 3 12 2 Restarting To prompt a full reboot of an SDA device access the main menu see 3 6 and select Power followed by the Restart option This option will ask for confirmation Selecting yes will force the system to restart 3 13 Cell replacement reminder For SDA sensors which use electrochemical technology such as the MEC sensor the electrochemical cell part of the sensor needs to be periodically replaced as the cell depletes To aid with the timely replacement of cells the SDA provides a cell replacement reminder feature This feature is only available for sensors which require cell replacement e g oxygen Sensors which do not use electrochemical technology e g carbon dioxide do not use this feature The cell replacement reminder feature can be enabled or disabled usi
49. ll be the folder named Drivers on the SDA software disc Click Next to begin installation 11 The SDA drivers will be installed This may take a few moments When the installation is complete click Finish 12 The device should automatically connect to ActiveSync and may pop up the ActiveSync window This window can be closed N AZ LO Document Ref XK0 801 08 November 2012 Page 47 SDA User Manual Found New Hardware Wizard Found New Hardware Wizard Please choose your search and installation options N Please wait while the wizard installs the software S Search for the best driver in these locations Llse the check boxes below to limit or expand the default search which includes local r paths and removable media The best driver found will be installed cm FEHEFIN ie C Search removable media floppy CD ROM Include this location in the search ER wj Don t search will choose the driver to install B B Choose this option to select the device driver from a list Windows does not guarantee that the driver you choose will be the best match for your hardware Setting a system restore point and backing up old files in case your system needs to be restored in the future 13 From the SDA software disk run the installer file called Setup 14 The installer will check that the NET Framework 3 5 SP 1 is installed If not you will be prompted to allow the framework to be i
50. ment Ref XK0 801 08 November 2012 Page 21 NALO SDA User Manual The wiring for both sensor and output module should follow the arrangement in the figure below Shield Yellow Green Core Colour Function Red V Yellow RS485 A Green RS485 B Dark Blue RS485 Ref Blue V Figure 13 Sensor wiring Note For Temperature amp Humidity probe wiring wire colours are different as shown below but the functions are the same Core Colour Function 1 Green V 2 Red RS485 A 3 Blue RS485 B 4 Grey White Bootlace RS485 REF 5 Grey Blue Bootlace V Document Ref XK0 801 08 November 2012 N A LO Page 22 SDA User Manual 2 3 Output Module Wiring The SDA output module can be connected to the Data port on the SDA Monitor to provide an analogue output of the sensor reading and the status of the alarms on the volt free contact relays 2 3 1 Output Module Connections Overview Relay 2 Relay 1 Analogue Communications 654321 321 94321 Figure 14 SDA output module connectors Connector Pin Function Comments Communications 1 V 5V DC supply input used to power the SDA Phoenix 5 way Output Module max 300mA 3 5mm pitch RS485 A Differential TxD RxD aka inverting pin a RS485 B Differential TxD RxD aka non inverting pin RS485 Ref Common reference signal to connect to SDA Monitor not used Analogue So A Phoenix 3 way 3 5mm pitch Relays Relay 1 Normally Closed NC c
51. mmended TOP VIEW DC Power 12V to 32V DC CO Signal Cable MEC CO Sensor Sample Exhaust lt gt Flow Adaptor Sample Input A Sample Exhaust Sample Input Flow 0 2 l min to 1 0 l min CO Monitor MEC CO Sensor FRONT VIEW Figure 3 SDA carbon monoxide system overview NALO Document Ref XK0 801 08 November 2012 Page 7 SDA User Manual Warning Ensure that when used with a flow adaptor that sample pressure is reduced down to almost atmospheric pressure before passing to the sensor This will prevent potential damage to the sensor and affects that can cause elevated sensor readings A flow rate between 0 2 and 1 0 l min is acceptable 0 5 l min is recommended The sensor comes with a 150mm cable and will fit the either of the two mounting bracket accessories see section 1 2 7 These can be used on both rack and panel mounting versions of the system Where longer cable distances are reguired the connection can be extended replacing the connector on the short cable with a terminal block or by replacing the cable from the internal MEC connector block A cable of 2 twisted pairs with an outer shield is reguired to maintain communication integrity enabling distances up to 500m to be achieved between the monitor and sensor REAR VIEW Chamber Penetrator Ferrite V Wurth 74271633 S y Ferrites Chamber Wall 0 to 20ppm DC Power MEC carbon 12V to 32VDC monoxide sensor Warni
52. ng Long signal and power cables can increase EMC emissions and be more susceptible to EMC interference For power and signal cable lengths greater than 1 5 metres signal ferrites are recommended to be fitted see above Document Ref XK0 801 08 November 2012 N A LO Page 8 SDA User Manual 1 2 5 SDA Temperature amp Humidity The SDA T amp H is composed of a SDA Monitor and a Temperature amp Humidity probe which can be used either in a chamber or in line The probe is ranged to O to 100 C 32 to 212 F and O to 100 RH When fitted in a chamber the probe will measure temperature and relative humidity in the surrounding ambient atmosphere As shown in the Figure 4 below up to pressures of 35bara when fitted in line the probe will measure temperature and relative humidity in the piped air supply As shown in the Figure 5 below up to a maximum pressure of 100bara connection can be made to the in line probe using a G female fitting REAR VIEW Chamber Penetrator N T amp H Signal Cable Chamber Wall u DC Power T amp H Probe 12V to 32VDC Chamber type Figure 4 SDA Temperature amp Humidity chamber system overview Document Ref XK0 801 08 November 2012 Page 9 NALO SDA User Manual REAR VIEW Air line system To diver pd G1 2 Fitting T amp H Signal Cable T amp H Probe In line type DC Power 12V to 32VDC Figure 5 SDA Temperature amp Humidity In line sys
53. ng the SDA software as described in section 4 3 2 If the cell replacement feature is enabled and the sensor is an electrochemical type the SDA will show an onscreen warning when the cell is due to be replaced as shown in Figure 35 The cell replacement reminder is shown once the number of days that have elapsed since the cell was last replaced exceeds the cell replacement reminder period defined using the SDA software Document Ref XK0 801 08 November 2012 Page 45 NALO SDA User Manual C _ Sensor change due High Alarm Low Alarm Figure 35 Sensor change reminder The cell reminder period can be adjusted using the SDA software to suit expected sensor usage For example some oxygen cells are expected to last for 2 years in atmospheric levels of oxygen However oxygen cells will deplete faster if they are exposed to higher levels of oxygen so if the sensor is expected to be exposed to higher levels of oxygen over its service then the reminder period can be shortened in order to serve as a reminder that the cell is expected to age more quickly Note The cell replacement feature is intended to be used only as a guide and cannot accurately determine the lifespan of a cell If a sensor becomes difficult to calibrate after a period of time in service then it should be replaced regardless of the reminder status 3 13 1 Replacing a cell and resetting the reminder Once an electrochemical cell has been replaced see section
54. nstalled Alternatively the NET Framework is available as a free download from the Microsoft Download Centre 15 Once the installer is satisfied that the NET Framework is installed the SDA installer wizard will be displayed Follow the on screen instructions to install the SDA software 4 1 3 Windows6 Vista amp Windows 7 Installation To install the SDA software on Windows Vista or Windows perform the following steps 1 Unplug all unnecessary USB devices from the computer 2 If not already installed install Microsoft Windows Mobile Device Centre 6 1 or later for the appropriate version of Windows This software is available as a free download from the Microsoft Download Centre Ensure that the appropriate 32bit or 64bit download is selected for your version of Windows 3 Ifinstalling from the SDA software CD insert the disc into the CD drive Connect the SDA to the computer using the USB cable and switch on the SDA Windows will pop up a message box stating that it is attempting to install drivers Windows wlill fail to find drivers for the device Installing device driver software Click here for status 6 Access the system properties window by clicking on the Windows start menu right clicking on Computer and selecting properties 7 On the system properties window click Advanced system settings 8 Select the Hardware tab and click Device Manager Document Ref XK0 801 08 No
55. ody Part First Aid Procedures Inhalation NALO Contact could result in a chemical burn Persons with pre existing skin disorders may be more susceptible to the effects of the substance Corrosive May cause sore throat abdominal pain nausea and severe burns of the mouth throat and stomach and may be fatal Persons with pre existing eye problems may be more susceptible to the effects of the substance Corrosive May cause redness pain blurred vision and eye burns Contact can result in the permanent loss of sight Persons with pre existing impaired respiratory function may be more susceptible to the effects of the substance Inhalation is not an expected hazard unless heated to high temperatures Mist or vapour inhalation can cause irritation to the nose throat and upper respiratory tract Immediately flush the skin thoroughly with water for at least 15 minutes Remove contaminated clothing and wash before re use Obtain medical advice if continued irritation lf swallowed DO NOT INDUCE VOMITING Wash out mouth thoroughly with water and give plenty of water to drink Obtain medical advice immediately Irrigate thoroughly with water for at least 15 minutes Obtain medical advice immediately Remove to fresh air Rest and keep warm Obtain medical advice if applicable Document Ref XK0 801 08 November 2012 Page 69 SDA User Manual 9 2 Pressurised gas 1 Do not exceed the s
56. ontact Phoenix 6 way Relay 1 common 3 5mm pitch Relay 1 Normally Open NO contact Relay 2 Normally Closed NC contact 5 Relay 2 common 6 NO Relay 2 Normally Open NO contact Document Ref XK0 801 08 November 2012 Page 23 NALO SDA User Manual 2 3 2 Analogue Output The analogue output may be configured by wiring to either the current sink passive or to the current source active When configured as an active source the default drive voltage is nominally 13V DC By use of a suitable load resistor with the active source connection the unit may provide a voltage output with full scale output configurable to over 12V DC depending on the value of the resistor used For 0 1V output the resistor would be 50R for 0 2V use 100R etc If an external current source is used the unit should be wired as a current sink using pins 1 and 2 with the negative of the external source connected to pin 1 The drive voltage of the external source should be no more than 48V due to the overvoltage protection diodes but the unit only reguires a compliance voltage of less than 1V to properly control the output current If an external current sink is used e g a simple analogue meter the unit should be wired as a current source using pins 2 and 3 In this case the positive of the source is on pin 3 The resistance of the external sink must be considered as standard the unit is configured to drive an external resistance up to at
57. oxide sensor module rack or panel mount 2 way Phoenix connector DC power 5 way Phoenix connector sensor communications amp power 5 way Phoenix connector output module communications amp power User manual Test certificate NOOB WN N Sf Sf Sf Sf N Carbon dioxide system combined panel mount Combined carbon dioxide monitor and sensor module 2 way Phoenix connector DC power 5 way Phoenix connector sensor communications amp power 5 way Phoenix connector output module communications amp power User manual Test certificate oo BReOmM u as SS Carbon monoxide system Carbon monoxide monitor rack or panel mount MEC carbon monoxide sensor Push in flow adaptor 2 way Phoenix connector DC power 5 way Phoenix connector sensor communications amp power 5 way Phoenix connector output module communications amp power User manual Test certificate CONDOR WDN N N Sf Sf Temperature amp Humidity system Temperature amp Humidity monitor rack or panel mount Temperature amp Humidity probe Chamber or In line variant 2 way Phoenix connector DC power 5 way Phoenix connector sensor communications amp power 5 way Phoenix connector output module communications amp power User manual Test certificate oSNOOVOPD N Nut ee Document Ref XK0 801 08 November 2012 Page 3 NALO SDA User Manual Accessories optional 1 AC DC
58. pecified maximum pressures Failure to do so may result in damage to the eguipment and to personnel 2 Users of this eguipment MUST be familiar with the handling of pressurised gas 3 Take particular care when handling toxic or flammable gases In such cases ensure that all exhaust is vented into well ventilated areas 4 _ For systems with exhaust outlets do not block the exhaust outlet 9 3 Helium Ingress Care must be taken when choosing the location for the SDA sensor modules that include atmospheric pressure compensation These include the MEC O MECO2ABB and SDA CO modules Helium can diffuse into the pressure sensing components in the sensor housing and affect the overall sensor accuracy To avoid helium ingress issue with the sensor modules they should be fitted into well ventilated panels or racks where the content in the atmosphere is ideally less than 196 helium Levels exceeding this will degrade sensor performance and levels greater than 596 will reduce sensor life expectancy Note that this does not effect the MEC O partial pressure sensor MECO2ABAP as this is does not include automatic pressure compensation 9 4 ESD and Electric Shock To prevent damage to the SDA units they must not be operated with any casework removed to prevent the likelihood of damage to the electronic components and accidental electric shock The rear USB and Ethernet connectors are shielded to and internal electronic ground and should not be
59. provides the display and user interface for the system A full colour 3 5 TFT display gives clear reading and status information and is suitable for a wide range of lighting and mounting positions The controls present guick and simple access to the most common system functions such as calibration and alarm adjustment with more detailed setup and diagnostic information accessed through an easy to use menu system The RS485 communication ports on the rear of a monitor provide connections to a range of Analox gas and environmental sensors and peripherals These provide the flexibility to mount sensors and peripherals alongside the monitor or up to hundreds of metres away without affecting performance The SDA range is compliant with the type approval specifications from the major classification societies in the marine industry for both the general power distribution and bridge zones refer to section 11 for more details Document Ref XK0 801 08 November 2012 N AZ LO Page 2 SDA User Manual 1 1 Packing Overview Oxygen system Oxygen monitor rack or panel mount MEC oxygen sensor Push in flow adaptor 2 way Phoenix connector DC power 5 way Phoenix connector Sensor communications amp power 5 way Phoenix connector output module communications amp power User manual Test certificate CONDOR WN ft Sf Sf N M Carbon dioxide system separates Carbon dioxide monitor rack or panel mount Carbon di
60. ration gas 0 590 CO2 SA7L110110 balance He 5000ppm esed Span calibration gas 1 CO2 SA7L110109 balance He 10000ppm RE Carbon monoxide N2 variants tem Description Prtn NN 0 5LPM 110L bottle regulator SA7L705XFLIND 2 Zero calibration gas 20 990 oxygen SA7L110179 balance nitrogen 3 opan calibration gas 18ppm carbon SA7L110176 monoxide balance air Carbon monoxide He variants tem Description jPartno O O 1 O 0 5LPM 110L bottle regulator SA7L705XFLIND 2 Zero calibration gas 20 990 oxygen SA7L110178 balance helium 3 Span calibration gas 18ppm carbon SA7L110175 monoxide 20 990 oxygen balance helium Document Ref XK0 801 08 November 2012 N A LO Page 64 SDA User Manual 8 Specifications 8 1 SDA Monitor External stabilised 12 32V DC supply regulation lt 2300mV External 110 230V AC supply option only Operating SDA Monitor Maximum 640mA at 24V DC supply Current SDA O System Average 200mA at 24V DC supply SDA CO System Average 200mA at 24V DC supply SDA CO System Average 300mA at 24V DC supply NEN o neste boa Sensor and data ports 400mA shutdown protection on 5V DC supply Display Panel 320 x 240 TFT colour graphic display with 10 brightness levels Displays current values of measured parameters using 14mm high large characters Alarm Onscreen visual indication of faults and 2 fully adjustable alarm levels Indic
61. rivers fail to install please try the following Disconnect any USB devices from the computer that are not required e Ensure that ActiveSync or Windows Mobile Device Centre are installed before attempting to install drivers e Sometimes users can experience problems connecting a device on Windows XP When this happens ActiveSync does not recognise a connection to the device To correct this select Add or Remove Programs from the Windows control panel Choose to remove Microsoft ActiveSync After this is removed browse to C Program Files and delete the ActiveSync folder Restart the computer and reinstall ActiveSync using the installer Document Ref XK0 801 08 November 2012 N AZ LO Page 50 SDA User Manual 4 1 5 Running the software To run the SDA software select the program from the Windows start menu Analox folder When the software runs without a device connected the window shown in Figure 36 will be displayed Disconnected Connect device to continue Disconnected Figure 36 SDA software without device connected 4 2 Making a connection Note The SDA software uses Microsoft ActiveSync to communicate with an SDA Before connecting to an SDA ensure that any other windows mobile devices or devices which make use of ActiveSync are disconnected from the computer Always connect only one SDA to the computer at a time To connect an SDA to the computer connect one end of the USB cable provided to the SDA
62. rols click the Logs button Figure 39 If data logging is enabled on the device a list of the data log files available on the device will be shown This list will be empty if data logging is not enabled The data log files are stored by date Each date s file contains all of the data logged whilst the device was running during a particular day This list can be refreshed by pressing the Refresh button ptions Data log files on device 7 2011 02 17 csv 1 2011 03 23 csv 7 2011 02 18 csv E 2011 02 21 csv E 2011 02 22 csv 7 2011 02 23 csv 7 2011 02 24 csv M 2011 02 28 csv 2011 03 01 cav a 2011 03 02 csv E 2011 03 03 csv 7 2011 03 D4 csv 7 0011 02 08 csv E 2011 02 09 csv 7 2011 03 14 csv 2 one Ei Rm Grm Bonnosi Figure 39 The data logs available on a connected SDA Data log files can be downloaded individually or in batches To select the files that are to be downloaded click on the checkbox next to each of the files of interest The All and None buttons can be used to select or deselect all of the files respectively Once a selection has been made the log file download can be started by clicking the Download button Figure 40 shows a selection of files being downloaded Document Ref XK0 801 08 November 2012 N AZ LO Page 54 SDA User Manual Note The time taken to download data logs will vary depending on the number of log files selected an
63. rranty claim by any of the above alternative means The equipment should not be sent to us without our prior written authority All shipping and Insurance costs of returned equipment are to be born by you and at your risk All returned items must be properly and sufficiently packed Document Ref XK0 801 08 November 2012 N AZ LO Page 72 SDA User Manual Fault Reporting To Analox Dae Customer Details Customer Contact Sr SSS SEE System Operating Voltage Customer s Description of Fault To be completed by Analox Date Manufactured Monitor SW Version Monitor BSP Version Design Change Note Ref if applicable Comments Document Ref XK0 801 08 November 2012 Page 73 SDA User Manual 11 Declarations of Conformity The SDA system complies with the consolidated Environmental reguirements of IACS E10 2006 EN 60945 2002 and the major maritime class society reguirements This SDA system complies with the consolidated Electromagnetic Compatibility EMC reguirements of IACS E10 2006 and the major maritime class society reguirements The SDA system complies to IMCA DO23 2000 and DO24 2001 design guidance notes This SDA system complies with the reguirements of the Electromagnetic Compatibility EMC Directive 2004 108 EC Document Ref XK0 801 08 November 2012 N A LO Page 74
64. s 1 Ensure all electrical connections between the MEC and monitor equipment are disconnected 2 Use a flat blade screwdriver to pop out the cell holder from the sensor bulkhead fitting 3 4 Disconnect the cell from the PCB connector Document Ref XK0 801 08 November 2012 N AZ LO Page 60 SDA User Manual 9 Connect the new cell to the PCB connector Note that it will only connect in one orientation 6 Fitthe cell in to the housing and rotate anti clockwise to lock in place 7 Refit the cell holder in to the sensor bulkhead 8 Following an carbon monoxide cell replacement a full calibration MUST be performed as described in section 3 5 9 If the cell replacement reminder option is in use then the reminder must be manually reset after replacing the cell as described in section 3 13 1 NALO Document Ref XK0 801 08 November 2012 Page 61 SDA User Manual 6 3 Reconfiguring a unit Warning The procedure for reconfiguring a unit should be performed under the understanding that it will remove all current settings from a unit and write default settings for a new configuration to the device Only perform this procedure if you are certain you wish to re configure a device It may occasionally be necessary to change the configuration of a unit to operate with a different sensor or range for example when configuring a spare SDA to be swapped out for another unit Re configuration of a un
65. sed to acknowledge the alarm Once acknowledged the visual and audio indicators will be cancelled Whilst latching is enabled if an alarm is acknowledged by pressing the mute button prior to the sensor reading passing back through the alarm set point then the visual and audio indicators will be cancelled as soon as the reading passes the hysteresis point see section 3 4 2 For instructions on how to set the latching alarms option see section 4 3 1 3 4 4 Alarm reminders In situations where it is important that alarm conditions are not missed the alarm reminder feature can be enabled Reminders will re trigger the horn for an alarm condition if the condition is not cleared after a specified time The horn will be re triggered even if it has previously been muted The horn will not be retriggered once the sensor reading reaches a level that no longer triggers the alarm Document Ref XK0 801 08 November 2012 N AZ LO Page 36 SDA User Manual For instructions on how to set the alarm reminder option and reminder timeout see section 4 3 2 3 4 5 Adjusting alarm set points Each of the SDA s alarm set points can be individually adjusted to suit the monitoring application To adjust a set point first select the alarm to adjust by pushing and holding the alarm adjust toggle switch in the direction of the chosen alarm up for higher alarm down for lower alarm Figure 27 Note For dual sensor devices the left toggle switch is used
66. software is available as a free download from the Microsoft Download Centre If installing from the SDA software CD insert the disc into the CD drive Connect the SDA to the computer using the USB cable and switch on the SDA Windows will pop up a message stating that it has found new hardware The Found New Hardware Wizard window will be shown Select No not this time and click Next On the next screen select Install from a list or specified location Advanced and click next Found New Hardware Wizard Found New Hardware Wizard 9 Welcome to the Found New Hardware Wizard Windows will search for current and updated software by This wizard helps you install software for looking on your computer on the hardware installation CD or on the Wi ite wi issi ws Update Web site with your permission DSP YELLOW1210CE USB Sync Read our privacy policy an Windows connect to Windows Update to search for 9 If your hardware coms with an installation CD ft lt 6 or floppy disk insert it O Yes this time only O Yes now and every time I connect a device w hat do you want the wizard to do O Install the software automatically Recommended Click Next to continue Click Next to continue On the next screen select Search for the best drivers in these locations uncheck Search removable media and check Include this location in the search 10 Click Browse and locate the SDA driver folder This wi
67. t intensity To adjust the backlight level enter the main menu and select Backlight Next select the desired backlight intensity level 10 100 from the menu Note Due to the nature of the display technology the maximum intensity of the display will slightly degrade over the lifespan of the product For new systems it is recommended that the backlight is set to an initial intensity level of 60 or less to maximise the lifespan of the display 3 8 Viewing device information To view a range of information about an SDA including serial number enabled options and attached peripherals access the main menu and select the Information option This will display the device information screen Figure 33 To close the information screen and return to the main screen press the mute button Version 2 0 Sensor 1 Temp Serial no 5D4 00125 Cal due n a Date 2012 11 30 Change due nja Logging Yes Sensor RH Outputs Mo Cal due n a Version 2L Sensor 1 O2 Serial no 504 00365 Cal due 29 2 hrs Date 2012 12 02 Change due 726 days Logging Yes Outputs Ma Alarm Settings Alarm Settings Change due nja Latching No Latching No Repeating Mo Repeating No Alarms 30 0 C A 20 0 C v Alarms High Alarm Low Alarm Figure 33 The device information screen single and dual sensor systems 3 9 Data logging If the data logging feature is enabled on an SDA then it will maintain a log of system and sensor data
68. tem overview Document Ref XK0 801 08 November 2012 N A LO Page 10 SDA User Manual 1 2 6 Longer signal cables The standard MEC sensor comes with a 150mm cable and will fit either of the two mounting bracket accessories see section 1 2 7 These can be used on both rack and panel mounting versions of the system Where longer cable distances are reguired the connection can be extended replacing the connector on the short cable with a terminal block or by replacing the cable from the internal MEC connector block A cable of 2 twisted pairs with an outer shield is reguired to maintain communication integrity enabling distances up to 500m to be achieved between the monitor and sensor The hyperbaric version of the O2 sensor will measure partial pressures up to 3000 mbar O and operate in pressures up to 36 bara In this application a longer cable must be fitted to provide the connection to the monitor which remains outside of the hyperbaric atmosphere see figure below REAR VIEW Chamber Penetrator Ferrite SDA Monitor N Wurth 74271633 S i Ferrites Chamber Wall Sensor DC Power 12V to 32VDC Figure 6 Sensor inside a saturation dive chamber Warning Long signal and power cables can increase EMC emissions and be more susceptible to EMC interference For power and signal cable lengths greater than 1 5 metres signal ferrites are recommended to be fitted see above Document Ref XK0 801 08 November 2012 Page
69. the Custom label checkbox If enabled a custom text label can be added to the text box This will instruct the SDA to display a custom text label on its main screen as described in section 3 2 3 If the custom label checkbox is unchecked then the device will show a default label which will be the configuration type e g Oxygen Document Ref XK0 801 08 November 2012 N AZ LO Page 52 SDA User Manual Latching alarms The latching alarms checkbox enables or disables latching alarms as described in section 3 4 3 Repeating alarms The repeating alarms checkbox enables or disables the alarm reminder feature as described in section 3 4 4 If the repeating alarms feature is enabled an alarm repeat interval should be set This defines the time in seconds before a muted alarm will be re triggered Setting this value to zero will automatically disable the feature Date and time The Set Time button can be used to set the date and time on the device as described in section 4 5 Note Any changes made to the general options will not come into effect on an SDA device until the Apply Changes button has been clicked with the exception of setting the date and time see section 4 5 4 3 2 Reminder options The reminders options are displayed by clicking on the Reminders tab Figure 38 shows the reminders options 5DA Setup Sensor 1 Calibration reminder Cell replacement reminder 7 Calibration adjust remin
70. then multiplying 500mbar by 1 017 will determine that 508 5mbar of O will be present at the sensor The operator can enter this compensated value during the calibration step see below Document Ref XK0 801 08 November 2012 N AZ LO Page 38 SDA User Manual 3 9 1 Performing an adjustment To perform a calibration adjustment first expose the sensor to the appropriate calibration gas of Known concentration The sensor should be allowed to settle for a period of time so that the sensor reading can stabilise This will depend on both the settling time of the sensor and on the length of pipe work and the flow rate of gas between the gas source and the sensor Once the sensor reading has settled for the applied calibration gas the calibration adjustment can begin by pushing and holding the Calibration toggle switch in the direction of the calibration point to be adjusted up for high calibration adjustment down for low calibration adjustment High calibration l ao Calibratin COE i Adj C Please wait Calibration m Calibration OK hu failed Figure 29 Calibration adjustment With the toggle switch held the calibration value entry panel will be shown Figure 29 1 with the value coloured blue Rotating the adjustment knob allows the calibration value to be increased or decreased The adjustment knob should be rotated until the known concentration of the calibration gas is displayed Note The calibration value that can
71. tment Whilst in use an SDA s sensor should be periodically calibrated at intervals deemed necessary for the monitoring application by exposing the sensor to gas of a known concentration Calibration adjustments of the sensor s output can be made where necessary as follows Note For certain sensors such as the temperature and humidity sensor it is not possible to perform a user calibration adjustment Where this is the case the calibration feature will not be available for the sensor Each sensor s output is defined by two calibration points one low and one high To perform a successful calibration adjustment both low and high calibration points should be adjusted Note The high and low calibrations performed on a sensor should be selected appropriately Some sensors e g carbon dioxide require that the low calibration is a true zero calibration adjustment For these sensors a gas with a known zero concentration of the target gas should be used For other sensors where the low calibration adjustment is not restricted a high and low calibration adjustment value should be selected The selected gas concentrations should best reflect the range over which the sensor is intended to be used for greater reading accuracy Typically a oxygen sensor MECO2ABBP monitoring a sample line in a saturation diving scenario at a depth of 200msw and maintaining an oxygen partial pressure of 400mbar ppO the analyser is expected to read 1 90 Ther
72. to adjust the first sensor s alarms and the right toggle switch is used to adjust the second sensor s alarms Note The alarm adjust toggle switch must be held in the chosen state until the new set point is confirmed Releasing the switch prior to confirmation will return the set point to its original value A High Alarm v Low Alarm Figure 27 Selecting an alarm to adjust When the alarm adjust toggle switch is held in the adjustment position the alarm adjustment panel will be shown in place of the alarm set points panel Figure 28 1 showing the name of the alarm to be adjusted and the current alarm set point coloured yellow Using the adjustment knob the set point can be adjusted by rotating the knob clock wise to increase the set point and anti clockwise to decrease the set point Figure 28 2 Once the desired new set point is shown press the set button to confirm the value Once confirmed the set point number displayed will turn green Figure 28 3 Once the new set point is confirmed alarm adjust toggle switch can be released The alarm set points panel will return to the screen showing the new value for the alarm set point which was adjusted Set High Alarm D Set High Alarm VEL Set High Alarm EE COLS ES OR Adj Set i Adj Set Adj Set Adjust Set Figure 28 Example of alarm set point adjustment Document Ref XK0 801 08 November 2012 Page 37 NALO SDA User Manual 3 5 Calibration adjus
73. to their de energised alarm states to correspond with the fault alarm that is raised for a system fault 3 11 3 Analogue output The output module s analogue output is used to reflect the SDA s sensor reading The nominal range of the output current is 4 20mA see section 2 3 for connection details This range corresponds to the range of the sensor attached For example for a 5000ppm ranged carbon dioxide sensor Oppm carbon dioxide measured will correspond to an output of 4mA and 5000ppm carbon dioxide measured will correspond to an output of 20mA If any system fault is detected then the analogue output will output a current beyond the 20mA upper range of the sensor range approx 22mA to correspond with the fault alarm that is raised for a system fault 3 11 4 Communication amp power faults If a faulty or intermittent connection exists between an SDA and an output module whilst the output module remains powered then the output module will assume a fault and set its relay and analogue output to their fault states as described above If power to an output module is lost the relays will return to a de energised alarm state and the analogue output will output OMA Document Ref XK0 801 08 November 2012 N AZ LO Page 44 SDA User Manual 3 12 Power modes When connected to a DC power supply and SDA device will start up automatically and remain powered whilst connected 3 12 1 Sleep mode An SDA can be switched into a s
74. vember 2012 N AZ LO Page 48 SDA User Manual OO v m a gt System and Security System Computer Name Hard Protecti Control Panel Home Simon Lunt Device Manager Remote settings Documents fg System protection Advanced system settings Pictures Music Computer Open ME Scan with AVG Map network drive Default P Disconnect network drive i v Show on Desktop Rename _ Properties See also Action Center Windows Update Performance Information and Tools 9 In the device manager window locate YELLOW under Other devices Right click this and select Properties View basic information about your Windows edition Windows 7 Professional Copyright 2009 Microsoft Corporation Service Pack 1 Get more features with a new edition of System Manufacturer Dell Model Vostro 460 Rating Processor Installed memory RAM System type Pen and Touch Dell support Website Computer name domain and workgroup set Computer name PC109 Full computer name PC109 scottis Computer description n scnttichannin Device Manager The Device Manager lists all the hardware devices installed on your computer Use the Device Manager to change the properties of any device Device Installation Settings Choose whether Windows downloads driver software for your Y devices and detailed information about them Device instalation Seti
75. whenever the device is powered up Data is logged every 10 seconds and includes the system status average minimum and maximum readings for the 10 second period An SDA operates a 90 day rolling log Once 90 days worth of data is collected the oldest day s data will be deleted so only the most recent 90 days are recorded Data can be downloaded into daily log files in CSV comma separated values format for easy import into popular spreadsheet applications For instructions on downloading data log files see section 4 4 An example of a typical data log file is shown below Date Time _ Status Units CO Average CO Max CO Min OK 28 02 2011 14 34 40 Fault pm 1 1 Document Ref XK0 801 08 November 2012 N AZ LO Page 42 SDA User Manual 3 10 Serial data output Under normal operation without an output module attached to the device see section 3 11 an SDA will continuously output information about the current system status and sensor reading via the data port The data is output via an RS485 serial stream in a readable ASCII format For details of how to make a correct physical connection to the data port in order to collect the output data see section 2 3 The set up parameters for an external system to correctly receive the output data are as follows BAUD rate 9600 Date bits 9 Parity None Stop bits 1 Flow control None The format of the data output stream is a comma delimited ASCII character strin

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