1732 Operators Manual
Contents
1. Ambient RH 5 to 95 Carbon dioxide 0 to 40 0 Combustibles 0 to 2 0 Oxygen deficiency 10 0 to 20 0 Burner efficiency 0 to 100 0 The oxygen deficiency output can be used in the same way as a combustibles analyser to signal the extent of reducing conditions of combustion processes 3 3 Heater Interlock Relays CAUTION Explosion protection when using heated probes is achieved by switching the power to the probe heater off whenever the main fuel valve is closed The principle of safety is that if the main fuel valve is open then main flame has been established With this primary source of ignition on the probe heater can be safely switched on The most dangerous situation is if fuel leaks into the combustion appliance when the fuel valve is closed When power is removed from the main fuel valve the heater should also be switched off To achieve this protection connect a main fuel valve voltage free contact to the BURNER ON SWITCH terminals 10 amp 11 When the main fuel valve is open the voltage free contact should be closed For installations where there is no risk of explosion connect a link between terminals number 10 amp 11 Heater Supply Interlock Connection for Heated Probes ieh ae 10 For safety contacts must be open BURNER INPUT if the main fuel valve is closed O11 If a safety interlock is not required a wire must be connected between terminals 10 amp 11 to enable e The heaters on heated probes2. Operational iia mise A di 9 Units OXygen diSpaly clinic EEE E 18 Voltages MAINS SUPPLY conoci ia 9 Wannsee 5 Etech 28 CONTROLS mr ua 1732 Oxygen Transmitter
3. e Process alarms e Auto purge and auto cal checking Etech 10 CONTROLS m 1732 Oxygen Transmitter 4 DISPLAY AND KEYPAD The 1732 transmitter has a graphic display 8 keys that are accessed from the outside of the cabinet and 5 LED indicators to show the status of the transmitter All the keys have a dual function The black text on the key is the function while the transmitter is in the RUN mode and the white text on the key is the function in the SETUP mode The SETUP mode is accessed by pressing the SETUP key The transmitter will return to the RUN mode when the SETUP key is pressed again or one minute after the last key is pressed UTE tech CONTROLS The front panel of the model 1732 oxygen transmitter 4 1 Display The 1732 display is used to show the oxygen in a large font and the secondary functions in a smaller font The default display is shown below with probe 1 oxygen on the top line and the probe 1 temperature on the lower line Heartbeat Fs dr OXYGEN TRANSMITTER deler indicator Oxygen measurement probe 1 N A Not Available will be shown when probe 1 is below 550 1022F Probe 1 TC 720 3 C ivity indi Lower line Activity indicator 5h i see below for B 14 20 36 secondary measurements details Current time In addition to displaying the current oxygen and the various secondary values the display is also to used show the current and active alarm conditions and to configure the tran
4. gas to probe 1 for as long as the key is pressed Pressing the GAS 2 PURGE 2 key will turn on solenoid 2 to pass calibration gas to probe 1 for as long as the key is pressed Pressing the GAS 1 PURGE 1 key will turn on solenoid 1 to purge probe 1 for as long as the key is pressed Pressing the GAS 2 PURGE 2 key will turn on solenoid 2 to purge probe 2 for as long as the key is pressed Pressing the GAS 1 PURGE 1 key will turn on solenoid 1 to pass calibration gas to probe 1 for as long as the key is pressed Pressing the GAS 2 PURGE 2 key will turn on solenoid 2 to pass calibration gas to probe 2 for as long as the key is pressed Refer to the person responsible for the commissioning to find out how the transmitter has been configured 26 Pa tech CONTROLS mr ut 1732 Oxygen Transmitter 8 UPDATING THE SOFTWARE The programme for 1732 transmitter is run from memory that is inside the main microprocessor The programme is inserted at the time of manufacture If the software needs to be updated to a later version the factory can supply an EEROM electrically erasable read only memory containing the update The following procedure should be used Turn the power off to the transmitter Carefully remove the update EEROM from the packaging NOTE The EEROM is static sensitive Avoid static discharges trough the pins of the EEROM by earthing yourself before picking up the EEROM Remove the shie
5. manual are given by Novatech in good faith However it is acknowledged that there may be errors or omissions in this manual A list of details of any amendments or revisions to this manual can be obtained upon request from Novatech Controls Technical Enquiries Novatech Controls welcome comments and suggestions relating to the product and this manual All correspondence should be addressed to Technical Enquiries Novatech Controls Pty Ltd 309 Reserve Road Tel 61 3 9585 2833 Cheltenham Fax 61 3 9585 2844 Victoria 3192 Email info novatech com au Australia Web site http www novatech com au Novatech Controls or their authorised dealers should carry out all maintenance and service on the product Novatech Controls can accept no liability whatsoever for any loss or damage caused by service or maintenance by unauthorised personnel This manual is intended only to assist the reader in the use of the product and therefore Novatech Controls shall not be liable for any loss or damage whatsoever arising from the use of any information or particulars in or any error or omission in this manual or any incorrect use of the product Etech 4 CONTROLS m 1732 Oxygen Transmitter 1 USING THIS MANUAL This manual is intended to be used by the operator It is not intended to describe how the 1732 oxygen transmitter should be connected configured or serviced If more detailed information is required than is shown in this manual the 1732 T
6. to the probe when it is dispatched The offset value must be entered into this setup function to achieve the most accurate measurements The value is usually between 1 0 to 1 0mV RANGE 6 0 to 6 0mV 0 0mV is set after a COLD START NOTE An error of 1mV in the probe offset will change the oxygen reading by about 1 oxygen when the probe is in ambient air However the reading is changed by much less when the probe is in a process Ata process gas oxygen concentration of 2 the 1mV offset error will only change the reading by 0 1 If in any doubt about the correct offset value set it to 0 0mV The function 02 Probe 2 Offset will only appear if the transmitter has been configured for 2 probes 5 2 2 Lower Line Items OXYGEN TRANSMITTER 03 Lower Line ltems Probe 1 EMF Enabled Setup Menu This function allows the operator to change the items that are available to be displayed on the lower line of the transmitter when it is in the RUN mode If the word Enabled appears on the display for a selected lower line measurement option the measurement will be available to be shown on the display in the RUN more by scrolling through the list using the DISPLAY up and DISPLAY down keys A lower line selection can be Enabled or disabled by pressing the ENTER key OPTIONS Temperature probe 1 Temperature probe 2 Sensor EMF probe 1 Sensor EMF probe 2 Sensor impedance probe 1 Sensor impedance probe 2 Oxygen
7. 0mA field selectable Active outputs Do NOT loop power these outputs 1000 ohm max 4 2Amp 240VAC 2A 30VDC 85 to 265VAC 50 60 Hz 3Watts for controller plus probe power 100W max Operating Temperature 250 to 558 Relative Humidity 5 to 95 non condensing IP65 IP54 with internal reference air pump 260mm 10 2 wide 160mm 6 3 high 90mm 3 5 deep 3 Kg 6 6 Ibs 3 2 Operational Specifications Range of outputs Function Linear oxygen 1 Linear oxygen 2 Average oxygen Log oxygen Reducing oxygen Oxygen deficiency Aux temperature Combustibles Burner efficiency No output Range of local indication 1732 Oxygen Transmitter Field selectable from the following Minimum Range Maximum Range 1 0 to 100 1 0 to 100 1 0 to 100 0 1 to 20 Fixed 2 decades 1x103 to 100 10 to 0 10 to 20 100 C 0 to 1600 C 0 5 0 to 2 0 20 0 0 to 100 0 1 0x 10 to 100 0 01 to 10 000ppm automatically defaults to range above 10 000ppm 1 EZ tech CONTROLS m us 9 Local display secondary functions Range Oxygen probe 2 1x10 to 100 Average oxygen of both probes 1x10 to 100 Probe 1 temperature Up to 1760 C 3200 F Probe 2 temperature Up to 1760 C 3200 F Probe 1 probe EMF 30 to 1350mV Probe 2 probe EMF 30 to 1350mV Probe 1 probe impedance 0 to 300k Q Probe 2 probe impedance 0 to 300k Q Aux temperature Up to 1760 C 3200F Ambient temperature 0 to 70 C 158 F
8. 14 show the alarm trip points that have been set in the transmitter OPTIONS Enabled Disabled 2 5 2 6 Very Low Oxygen Alarm and Delay NOTE These menu functions are read only To change these settings see the Technical Manual OXYGEN TRANSMITTER OXYGEN TRANSMITTER 07 Very Low O2 Alarm 08 Very Low O2 Al Delay 0 500 2 seconds Locked Locked Setup Menu Setup Menu If the transmitter has been selected to run a single probe it will show a very low oxygen alarm when the oxygen measurement of probe 1 goes below the trip level for longer than the delay time If the transmitter has been selected to run dual probes it will show a very low oxygen alarm when the average of the two oxygen measurements is below the trip level for longer than the delay time If either one of the probes has a failure alarm High sensor impedance thermocouple open circuit heater failure the alarm will then trip on the oxygen measurement from the remaining working probe RANGE 0 001 to 2 000 0 500 is set after a COLD START RANGE 0 to 200 seconds 2 seconds is set after a COLD START 5 2 7 Low Oxygen Alarm and Delay NOTE These menu functions are read only To change these settings see the Technical Manual OXYGEN TRANSMITTER OXYGEN TRANSMITTER 09 Low O2 Alarm 1 0 Low O2 Alarm Delay 2 5 10 seconds Locked Locked Setup Menu Setup Menu If the transmitter has been selected to run a single probe it will show a low oxygen alarm w
9. Etech CONTROLS pr trp Oxygen Transmitter Model 1732 Operators Manual April 2007 TABLE OF CONTENTS TABLE OF CONTENTS iii aclarado dida 3 1 USING THIS MANUAL 42 242242 Hessen sans ninia reali dean fudderecepeeacasteteeyetecee 5 TAN GAUTIONS nie aS 5 1 2 HEATER WARNING cuca dadas 6 2 INTRODUCTION adan ideal cascnads 7 3 SPECIFICATIONS 0 id 9 3 1 HARDWARE SPEGIFICATIONS uuursaaunnsnnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnnnnnnnnnnannnnnnnnannnnnannnnnnnnnnnnnnnannnnnnnnnnen 9 3 2 OPERATIONAL SPECIFICATIONS coocoonocconcccnnnccnnnnccnnnnn nn 9 3 3 HEATER INTERLOCK RELAYS hue 10 4 DISPLAY AND KEYPAD Lane 11 41 DISPEAV NN 11 4 2 OXYGEN DISP LAYr uetiske 12 4 3 KEYPAD nar ae eee reke eee 13 4 3 1 Keypad in RUN MOIE aaar r eaaa nora rr 13 4 3 2 Keypad in SETUP M de nn ne ti dades 14 Se SETUP MODE ainia 15 5 1 SETUP MODE FUNCTION SUMMARY coccion RL Ruin 15 5 2 SETUP MODE DETAILS ci A A AEE 15 5 2 0 To change an option in the SETUP MONUlioconcccnicicinccoconononncnnnccccconncnnnnn nacer 15 5 2 1 Probe ON SO ad das 16 5 2 2 LOWEPLINOSIOMINIS musa arne A eb He DE 16 5 2 3 Oxygen Display Units costa a za 17 5 24 Damping F ctohu r a EE a O O E 17 5 2 5 Process Alar MS ds DIA A Ea a AIEE dan 17 5 2 6 Very Low Oxygen Alarm and Delay sr aeara a Eaa rca 18 5 2 7 E0W OXygen Alarm nd D lays coi aaa 18 5 2 8 High Oxygen Al rm and Delay iii re Ran 19 5 2 9 High Deviation Alarm and Delay oooooonicccccnnanici
10. ROLS m 1732 Oxygen Transmitter 4 3 Keypad There are 8 keys built into the decal on the outside of the door of the 1732 transmitter The key function is written in BLACK and WHITE to identify the function of the key in either RUN mode or SETUP mode Key text RUN mode BLACK text SETUP mode WHITE text SETUP RUN Enter SETUP mode Return to RUN mode DISPLAY FUNCTION A Display scroll up Function scroll up DISPLAY FUNCTION V Display scroll down Function scroll down ALARM OPTION A Alarm scroll up Option scroll up ALARM OPTION V Alarm scroll down Option scroll down ALARM ACCEPT ENTER Alarm accept Enter GAS 1 PURGE 1 SENS IMP Gas 1 Purge 1 manual activate Probe impedance GAS 2 PURGE 2 AUTO CAL Gas 2 Purge 2 manual activate Auto calibrate 4 3 1 Keypad in RUN mode When the transmitter is turned on and has gone through the start up procedure it will go to the RUN mode In this mode the top line of the display will show the oxygen measurement from probe 1 The other key functions are SETUP RUN key Pressing this key once will put the transmitter into the SETUP mode The function of all the keys will then change to the functions that they have in the SETUP mode Pressing the SETUP RUN key again will return the transmitter to the RUN mode or it will return automatically one minute after the last key press DISPLAY up down keys The display keys are used to scroll the lower line up and down through the variety of measur
11. ared The alarms are stored in the alarm log in chronological order However it may be seen that the current alarm number will skip some numbers These numbers have been reserved for alarm events that are still current When the alarm cause has been removed these alarm events will be transferred to the alarm log 6 2 Alarm Relays The common alarm relay is used to monitor faults within the transmitter and the probe The list of events that will cause the common alarm relay to be activated is shown in chapter 6 3 Common Alarms The relay contacts will be open circuit if there is a current alarm condition The other three alarm relays are user defined and are used to monitor the process The function of the process alarm relays is user selectable See chapter 6 4 Selectable Process Alarms and the Technical Manual for further information WEMbiech 22 CONTROLS m 1732 Oxygen Transmitter 6 3 Common Alarms The events that drive the common alarm relay are 1 Probe 1 High Impedance 2 Probe 2 High Impedance Oxygen probe or electrode failure high impedance This alarm is inhibited when the probe temperature is under 650 1200F 3 Probe 1 Heater Fail 4 Probe 2 Heater Fail In the first 20 minutes of power being applied to the heater after being switched on this alarm will not occur but a Probe 1 2 Low Temp display will be shown and the common alarm relay will be activated If an ADC alarm oc
12. ay mode Next Alarm ALARM OPTION down Enter ALARM log mode Previous Alarm ALARM ACCEPT ENTER Accept alarm When the alarm mode has been entered the SETUP light flashes once a second All relays have fail safe alarm contacts That is When the transmitter is off the contacts are open circuit When the transmitter is on but there are no alarms the contacts are closed When there is a current alarm event the contacts are open circuit All alarms drive the alarm light on the front door The light will be off if there are no alarms current The light will flash if there is a current alarm that has not been accepted The light will be on steady if there are current alarm s that have been accepted The light will flash faster as more alarms occur 6 1 Checking and Accepting an Alarm When a new alarm occurs either a process alarm or an alarm that will appear in the common alarm list the ALARM light will flash The more new alarms there are the faster the light will flash To check the cause of the alarm 1 Press the ALARM up key This will put the transmitter into the current alarm mode The SETUP light will flash 2 The alarm screen will appear displaying the cause of the alarm on the top line Cause of the alarm OXYGEN TRANSMITTER Time title Time Activated Probe 1 TC Open Ct Time Accepted Time Activated Time Cleared 13 Apr 2006 13 05 28 T en i ime of the Alarm status Active Accepted Self cleared 3 Pres
13. cononcccnononccccnnoncccnnnorn cnn E n anne c nan nnrnnnnnnnns 19 GL ALAR INS unnsetning 21 6 1 CHECKING AND ACCEPTING AN ALARM ccccecceeseeseeeeeceaeeeeaaeeeeeeeceaeeeeeaaeeeeeeeseaeessaaeeseaeeseeeeeseaeessaaeeeeneeeeas 21 Be Tal Current ALANS siciliana iii sand E AA bi ici 22 6 1 2 Alarm LOG nn Ben Bee en Pe ne seen 22 62 ALARM RELAYS uka 22 6 3 GOMMONALARMS keren 23 6 4 SELECTABLE PROCESS ALARMS uunnnaunssennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnsnnnnnnnnnnnnnnnnsnnnnnnnnnnnnnnnnnnnnnsnnnnnnnnnnnnnnnnnnnn 24 6 5 WARNING MESSAGES O 24 7 GAS CALIBRATE AND PURGE rnnnnnnannnnnnnnnnnnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnenn 25 7 1 ACTIONS THAT OCCUR WHEN THE GAS SOLENOID KEYS ARE PRESSED ccecceceeeeeeeeeeeeeeseteeeseaeeteneeseaas 26 38 UPDATING THE SOFTWARE tad 27 o Copyright NOVATECH CONTROLS PTY LTD 2007 Edition April 2007 This manual describes the transmitter firmware version 1 00 April 2007 Neither the whole nor any part of the information contained in or the product described in this manual may be adapted or reproduced in any material form except with the prior written approval of Novatech Controls Pty Ltd Novatech The product described in this manual and products for use with it are subject to continuous developments and improvement All information of a technical nature and particulars of the product and its use including the information in this
14. curacy of the probe to be checked This chapter describes the operation of this gas checking system For further details see the 1732 Technical Manual The 1732 has a timer and solenoid driving system that can be configured to admit a certified calibration gas into the probe or an air supply to purge the probe filters through the gas connection Both the calibration gas and the filter purge gas must be piped to the port on the probe labeled CAL PURGE There are two solenoids drivers in the 1732 transmitter They can be used for a variety of combinations of gas checking and probe purging functions The available options depend on the way that the transmitter has been configured Single probe Configuration Gas 1 amp Purge 2 Solenoid 1 should be connected to calibration gas and Solenoid 2 should be connected to the purge gas Gas 1 8 Gas 2 Solenoid 1 should be connected to calibration gas 1 and Solenoid 2 should be connected to calibration gas 2 Dual probe Configuration Purge 1 amp Purge 2 Solenoid 1 should be connected to the purge gas on probe 1 and Solenoid 2 should be connected to the purge gas on probe 2 Gas 1 8 Gas 2 Solenoid 1 should be connected to calibration gas 1 and Solenoid 2 should be connected to calibration gas 2 The transmitter can also be configured to be in a MANUAL or AUTOMATIC purge and gas check mode The information on configuring the transmitter is contained in
15. current back into the transmitter input The transmitter will then calculate a zero and a span calibration factor for each of the output channels The output calibration will only happen if the channel is not set to manual output calibration see Technical Manual for more details tech 14 CONTROLS mn 1732 Oxygen Transmitter 5 SETUP MoDE This chapter describes the functions available when the SETUP mode is selected on the transmitter The SETUP mode is accessed by pressing the SETUP key The transmitter will return to the RUN mode when the SETUP key is pressed again or 1 minute after the last key is pressed 5 1 SETUP mode function summary When the transmitter is in the SETUP mode the SETUP light will be on The following table shows the SETUP menu functions Menu Function name top line Range Default value 01 Probe 1 offset 6 0 to 6 0mV 0 0mV 02 Probe 2 offset 6 0 to 6 0mV 0 0mV 03 Lower line items See SETUP function 43 for details chapter 5 2 2 04 Oxygen display units Oxygen Oxygen ppm Oxygen 05 Damping factor No damping to 5 samples averaged 10 samples averaged 06 Process alarms Enabled Disabled Disabled 07 Very low oxygen alarm 0 001 to 2 000 0 500 08 Very low oxygen alarm delay 0 to 200 seconds 2 seconds 09 Low oxygen alarm 0 1 to 100 0 2 5 10 Low oxygen alarm delay 0 to 200 seconds 10 seconds 11 High oxygen alarm 0 1 to 100 0 10 0 12 High oxygen alarm delay 0 to 200 seconds 60 seconds 13 Oxygen Deviat
16. curs the heaters will automatically be turned off If the probe has not reached 650 1200 F in 20 minutes the Probe 1 2 Heater Fail alarm will be raised 5 Probe 1 TC Open Circuit 6 Probe 2 TC Open Circuit Probe thermocouple is open circuit The heater in heated probes will switch off 7 Auxiliary TC Open Circuit Stack thermocouple is open circuit If the thermocouple is not needed select NO T C for Aux TC Type or place a short circuit between terminals 7 amp 8 8 Reference Air Pump Fail The reference air pump in the transmitter has failed 9 ADC Calibration Fail The analog to digital converter has been found to fall outside the normal calibration specifications In this case the probe heater will automatically be turned off 10 Output 1 Failure 11 Output 2 Failure The digital to analog and voltage isolator circuit has been found to fall outside the normal calibration specifications This check is only performed when the AUTO CAL button is pressed Refer to chapter 4 2 2 12 BBRAM Fail All of the setup options are held in the battery backed memory BBRAM This is the battery shaped device at the bottom centre of the 1730 1 PCB labeled MEM1 This alarm will occur when this device fails and will need to be replaced 13 Heater 1 SSR Failure 14 Heater 2 SSR Failure 15 Heater SSR Leakage The 1732 has the ability to monitor th
17. d the temperature is less than 650 C 1200 F a Probe 1 2 Heater Fail alarm will occur There will be a flashing T symbol on the bottom left hand corner of the display until the temperature of the probe s is over 650 12004 NOTE The Probe 1 2 Temperature Low function is also used with unheated probes to show that the probe temperature is below 6500 1200 F when the proces s temperature falls below this level With heated probes this relay will be de energised while the probe is heating up from ambient making the contacts open circuit 28 Cal 1 in Progress 29 Cal 2 in Progress A calibration check is occurring either manual or automatic mode The 1 symbol will be shown in the bottom left hand corner of the display and it will flash during the post purge freeze time 30 Purge 1 in Progress 31 Purge 2 in Progress A probe purge is occurring either manual or automatic mode The 2 symbol will be shown in the bottom left hand corner of the display and it will flash during the post purge freeze time 24 CONTROLS mi 1732 Oxygen Transmitter 7 GAS CALIBRATE AND PURGE The Novatech oxygen sensor that is used in the Novatech oxygen probe is extremely predictable stable and reliable For this reason the calibration of a Novatech oxygen system does not require the use of calibration gases However all Novatech oxygen probes have a built in gas connection that does allow the ac
18. e operation of the heater current As a result the transmitter will give an alarm within 1 second of a heater power control switch Solid State Relay failure If either of the SSR s are found to be faulty both heaters will be turned off immediately and the alarm will be raised The SSR must be replaced The SSR Leakage alarm will occur if one of the heater SSR s are partly shorted If probe 1 SSR has failed and only one probe is being used the 1732 Technical Manual describes how the SSR for probe 2 can be selected instead If 2 probes are being used but neither of the solenoid outputs are being used consult the Technical Manual 16 Probe 1 Filter Blocked 17 Probe 2 Filter Blocked Blocked probe filter This test is only performed when automatic purging of the probe is selected Refer to the Technical Manual for further details This alarm will not reset until the next purge cycle that can be initiated manually or automatically or the power to the transmitter is turned off and back on 1732 Oxygen Transmitter CONTROLS mu 23 18 Gas 1 Calibration Error 19 Gas 2 Calibration Error This alarm will only be raised if the oxygen measurement during an automatic gas calibration check falls outside the set gas limits This alarm will not reset until the next purge cycle that can be initiated manually or automatically or the power to the transmitter is turned off and back on 6 4 Selectable Process Alarms T
19. echnical Manual should be used This is supplied with each transmitter and is also available on the Novatech web site at www novatech com au It is assumed in this manual that the transmitter has been installed by competent personal and that the wiring to the main power supply the oxygen probe and all the associated signal devices complies with the local safety codes and regulations 1 1 Cautions Please read the safety information below before connecting power to the transmitter CAUTION 1 The probe heater is supplied with mains voltage This supply has electrical shock danger to maintenance personnel Always isolate the transmitter before working with the probe The EARTH wire green from a heated probe must ALWAYS be connected to earth CAUTION 2 Combustion or atmosphere control systems can be dangerous Burners must be mechanically set up so that in the worst case of equipment failure the system cannot generate explosive atmospheres This danger is normally avoided with flue gas trim systems by adjustment so that in the case of failure the appliance will not generate CO in excess of 400 ppm in the flue The CO level in the flue should be measured with a separate CO instrument normally an infrared or fuel cell type CAUTION 3 The oxygen probe is heated to over 700 1300F a nd is a source of ignition Since raw fuel leaks can occur during burner shutdown the transmitter has an interlocking relay that removes p
20. ements that are available on the lower line display The list can be changed to suit the operator by using SETUP function 4 ALARM up key If there is either a new alarm or an active alarm the ALARM UP key can be pressed to examine the alarm status The alarm light will be flashing if there is a new alarm or steady if there is an existing alarm see chapter 6 Alarms ALARM down key When the transmitter is in the run mode or the alarm mode the ALARM UP key has been pressed the ALARM DOWN key and the ALARM UP key allow the operator to examine the alarm log The date time of last 1000 alarms can be scrolled through Each alarm record consists of the alarm name and the date time that the alarm was initiated accepted and cleared see chapter 6 Alarms ALARM accept key The ALARM ACCEPT key is used to accept a new alarm see chapter 6 Alarms GAS 1 PURGE 1 and GAS 2 PURGE 2 keys These two keys are used to turn on the gas purge solenoids When the transmitter is in the manual cal purge mode Commissioning function 420 the solenoid will be activated for as long as the key is pressed When the transmitter is in the auto cal purge mode the automatic cal purge cycle is started The cycle can be stopped by pressing any key See chapter 7 Gas Calibrate and Purge 1732 Oxygen Transmitter CONTROLS m 13 4 3 2 Keypad in SETUP mode When the SETUP RUN key is pressed once the transmitter will go into the SETUP mode For inf
21. hen the oxygen measurement of probe 1 goes below the trip level for longer than the delay time If the transmitter has been selected to run dual probes it will show a low oxygen alarm when the average of the two oxygen measurements is below the trip level for longer than the delay time If either one of the probes has a failure alarm High sensor impedance thermocouple open circuit heater failure the alarm will then trip on the oxygen measurement from the remaining working probe RANGE 0 1 to 100 2 5 is set after a COLD START RANGE 0 to 200 seconds 10 seconds is set after a COLD START NETA tech 18 1732 Oxygen Transmitter 5 2 8 High Oxygen Alarm and Delay NOTE This menu function is read only To change this setting see the Technical Manual OXYGEN TRANSMITTER OXYGEN TRANSMITTER 11 High 02 Alarm 12 High 02 Alarm Delay 10 0 60 seconds Locked Locked Setup Menu Setup Menu If the transmitter has been selected to run a single probe it will show a high oxygen alarm when the oxygen measurement of probe 1 goes above the trip level for longer than the delay time If the transmitter has been selected to run dual probes it will show a high oxygen alarm when the average of the two oxygen measurements is above the trip level for longer than the delay time If either one of the probes has a failure alarm High sensor impedance thermocouple open circuit heater failure the alarm will then trip on the oxygen measuremen
22. here are three user configurable alarm relays Any or all of the following functions can be selected for each relay The description of how the trip levels and the delay times are set is in the 1732 Technical Manual NOTE The process alarms will only be activated if they are enabled in SETUP menu function 06 19 Oxygen 1 Very Low 20 Oxygen 2 Very Low The measured oxygen level on the indicated probe has been below the trip level shown in setup function 07 for longer than the delay time shown in setup function 08 21 Oxygen 1 Low 22 Oxygen 2 Low The measured oxygen level on the indicated probe has been below the trip level shown in setup function 09 for longer than the delay time shown in setup function 10 23 Oxygen 1 High 24 Oxygen 2 High The measured oxygen level on the indicated probe has been above the trip level shown in setup function 11 for longer than the delay time shown in setup function 12 25 Oxygen Deviation The difference between the oxygen level measured on probe 1 and the oxygen level measured on probe 2 is greater than the trip level shown in setup function 13 and the time delay shown in setup function 14 has expired 6 5 Warning Messages 26 Probe 1 Temperature Low 27 Probe 2 Temperature Low The probe temperature is under 650 C 1200F The oxygen reading is therefore invalid If the probe heater has been on for more than 20 minutes an
23. ion alarm 0 1 to 21 0 2 0 14 Oxygen deviation alarm delay 0 to 200 seconds 30 seconds 5 2 SETUP mode details Function Power on e _ OXYGEN TRANSMITTER Function number Selected option Verification that the selected option has been saved Menu name Activity Indicator AorZ See chapter 4 1 5 2 0 To change an option in the SETUP menu 1 Select the SETUP mode by pressing the SETUP RUN key once The SETUP light will come on and the display will have the format shown above The operations of the keys are now the operations written in white on the keypad The menu name is written at the bottom of the display 2 When the SETUP mode has been selected the required function can be found by using the FUNCTION UP and FUNCTION DOWN keys 3 The options available for that function can be seen by using the OPTION UP and OPTION DOWN keys 4 When the required option is on the display the ENTER key is used to save that option 5 Press the SETUP RUN key to return to the RUN mode The details of each function are given below NOTE An asterisk on the end of the line identifies the default option that is set during a COLD START Atech 1732 Oxygen Transmitter 15 5 2 1 Probe 1 offset OXYGEN TRANSMITTER OXYGEN TRANSMITTER 01 Probe 1 Offset 02 Probe 2 Offset 0 0 mV 0 0 mV Saved Saved Setup Menu Setup Menu Each Novatech probe has an offset calibration value printed on a tag that is attached
24. ions Computer RS 232 C or RS 485 for connection of a computer terminal or printer for diagnostics of the transmitter probe or combustion process This connection is suitable for network connection to a computer DCS or PLC using MODBUS protocol Display Multi font graphical display Large font characters for the oxygen on the top line Multiple lower line items for the secondary functions ie Probe temperature Oxygen for the second probe Alarm display mode that shows the time the alarm occurred and the acceptance time Alarm log mode that keeps the time the alarm occurred the acceptance time and the time the alarm was cleared for the last 4 000 alarms Power Universal mains supply voltage 85 to 265VAC Automatically detects the mains voltage and frequency and set the power control accordingly 1732 Oxygen Transmitter CONTROLS m u 7 This page has been intentionally left blank Etech CONTROLS mr urs 1732 Oxygen Transmitter 3 SPECIFICATIONS 3 1 Hardware Specifications Number of oxygen probes Oxygen range Oxygen accuracy Thermocouple types Temperature accuracy Analog outputs Output load Alarm relays Alarm relay contacts Mains voltage supply Power Environmental Rating Degree of Protection Case Size Case Weight 1or2 1x 10 to 100 1 of actual measured oxygen value with a repeatability of 0 5 of the measured value Type K J Rand S 2 C 0 20mA or 4 2
25. ld by undoing the 2 M4 screws OXYGEN TRANSMITTER Flash Update Firmware Description of the Model 1732 update software in the Version 1 01 EEROM Flash Cancel Press the DISPLAY UP key to Flash the update and run the new software version Press the Gas Purge 1 key to Cancel the update and run the previous software version 1732 Oxygen Transmitter CONTROLS mv 27 9 INDEX PE an ra 22 B LSAMO oa iia 22 EIA 22 2 143 22 ee a ed eee anse 24 Alarms Process enabling orinal liinda anal 18 Alarms Selectable ui IE OEL ER REES EEDEEUREL HEN ETUEEUHRLDEERN ERSEEUNTREBECHETEEEUNELERERN EIUEEUNELE EEE TEE OHELEREEN Eae REES 25 Alarms Warning messag8s t 2 uam a 25 Calibration Gas check ccccccccccccssssscececeeccssessseeeccescesaseeeeeecceseesseeeseescseseeseeeseceseceesseeeeeeeesceesesaeseeeeeceeaseeeeeeceeeeseaeseeeeess 26 COMPUS O 7 BET GE 10 FEE EEE EEE EE ETE EE EE EE EEE 18 Display run mode ass anvende kube 11 Display S tup Mode ENE EE EE e saute dae A al o ai a 15 Heater Interlock Relays iii ii rare 10 TER EE EE EE EE EE NE EE EE EE NE ea 7 O ME 10 Key Auto Calibrate ss cies ccs tesskacced mennene ee He een eben aaa eos 14 Key Probe imped nce ur er ia 14 KEN EEE EE te 13 Lower Ine Changes ua cdi aE 17 Output rang S sinen oaos aiid intestate iaa 9 QUIPUES EE to sacan 7 Probe OMS eteNtIY iii A ME 17 Sep md 15 Specificalons Hardware 2 SN 9 Specifications
26. obe must always be connected to earth The heater is supplied from the mains power directly and the temperature is controlled at 720 1300 F The outside of the process end of the probe can get to temperatures that are dangerous to touch Wear insulating gloves when handling a probe that has been on eA tech Atech 1732 Oxygen Transmitter CONTROLS mr r 2 INTRODUCTION The Novatech 1732 oxygen transmitter is based on the well known model 1632 transmitter It includes a number of hardware and software improvements such as a graphic display larger characters faster microprocessor simplified set up menu alarm logging faster probe heater control and more calculated values such as burner efficiency The 1732 Oxygen Transmitter has a variety of user selectable functions They are simple to use because each selection is menu driven For options you are not sure about read the manual on that particular item in chapter 5 SETUP mode Features include Inputs Two zirconia oxygen probe heated or unheated Oxygen range from 1 x 10 to 100 Furnace kiln or flue thermocouple field selectable as type K J Ror S Main flame established safety interlock for heated probes only Purge pressure or flow switch Outputs Two linearised 4 20mA or 0 20mA DC isolated outputs max load 10002 12 bit resolution The output function and the range are field selectable Common alarm relay Three other alarm relays with selectable funct
27. ormation about the additional user selectable options see the 1732 Technical Manual The following key functions are then available in the SETUP mode SETUP RUN key Pressing this key once will put the transmitter into the SETUP mode The function of all the keys will then change to the functions that they have in the SETUP mode Pressing the SETUP RUN key again will return the transmitter to the RUN mode or it will return automatically one minute after the last key press FUNCTION up and FUNCTION down keys These two keys allow the selection of the required setup function from the list shown at the start of chapter 5 1 SETUP mode OPTION up and OPTION down keys These two keys allow for the selection of the options that are available in the selected function See the details of these in chapter 5 2 Setup mode details ENTER key The ENTER key saves the selected option If the ENTER key is not pressed when a new option is chosen the previous option will be retained Probe impedance key When this key is pressed the transmitter will measure the impedance of the sensor in the probe s This will only happen if the burner is enabled terminals 10 and 11 and the probe temperature is over 700 1290F Auto calibrate key When this key is pressed the transmitter will calibrate the analog output channels This is done by directing the output current away from the output terminals terminals 12 amp 13 and 14 amp 15 and directing the
28. ower from the probe heater when the main fuel shut off valve power is off If this configuration does not suit or if it is possible for raw fuel to come into contact with a hot oxygen probe then the Model 1732 transmitter with a heated probe will not be safe in your application An unheated probe can be utilised in such applications however the oxygen readings are valid only above 650 12004 CAUTION 4 The reducing oxygen signal from the transmitter and the associated alarm relay can be used as an explosive warning or trip This measurement assumes complete combustion If incomplete combustion is possible then this signal will read less reducing and should not be used as an alarm or trip A true excess combustibles analyser normally incorporating a catalyst or thermal conductivity bridge would be more appropriate where incomplete combustion is possible Also read the probe electrical shock caution in the probe heater interlock caution in chapter 4 7 of the Model 1732 Technical Manual CAUTION 5 FIL 3 filter Ifthe optional FIL 3 has been fitted to the 1231 probe in this installation please read the Important Notice in the Technical Manual 1732 Oxygen Transmitter CONTROLS m 5 1 2 Heater Warning The probe heater is supplied with mains voltage This supply has electrical shock danger to maintenance personnel Always isolate the transmitter before working with the probe The EARTH wire green from the pr
29. probe 2 Oxygen Average probe 1 and probe 2 Aux temperature Ambient temperature Oxygen deficiency probe 1 Oxygen deficiency probe 2 Combustibles probe 1 Atech 16 1732 Oxygen Transmitter Combustibles probe 2 Carbon dioxide maximum dry probe 1 Carbon dioxide maximum dry probe 2 Boiler efficiency requires Single probe and Aux TC Type to be set Burner run time Service date 5 2 3 Oxygen Display Units e OXYGEN TRANSMITTER 04 Oxygen Display Units Oxygen Saved Setup Menu The top line of the display that shows the oxygen measurement can be displayed in either or ppm see chapter 4 1 Display OPTIONS Oxygen Oxygen ppm 5 2 4 Damping Factor 5 OXYGEN TRANSMITTER 05 Damping Factor 5 x Sampling Saved Setup Menu The oxygen measurement can be damped if there are annoying fluctuations in the process gas Of course any damping will slow down the reaction time of the transmitter The larger the number selected here the steadier the measurement will be The damped oxygen value is also used in the calculation of all other parameters that are based on the oxygen value RANGE No Damping to 10 5x Samples is set after a COLD START 5 2 5 Process Alarms o OXYGEN TRANSMITTER 06 Process Alarms Disabled Saved Setup Menu Atech 1732 Oxygen Transmitter 17 This function allows the operator to Disable process alarms Setup functions 7 to
30. s the ALARM ACCEPT key to accept the alarm 4 Press the OPTION up key to see the next active alarm or the OPTION down to see the previous active alarm When all the new alarms have been ACCEPTED the ALARM light will stop flashing Accept each alarm and then press the SETUP RUN key to return to the run mode om Etech 1732 Oxygen Transmitter CONTROLS m 21 6 1 1 Current Alarms To view the alarms that are still current press the ALARM up key from the RUN mode and then use the ALARM up and down keys to view all alarms Use the DISPLAY up and down keys to view the Time Activated Time Accepted and the Time Cleared of each alarm 6 1 2 Alarm Log The alarm log keeps a record of the alarm events after the cause of the alarm has been cleared It will hold a record of up to 1000 alarm events and will be retained even with the transmitter power off To view all the alarms that have occurred in the alarm log press the ALARM down key from the RUN mode The display will look like this Cause of the alarm Time title Time Activated OXYGEN TRANSMITTER Probe 2 TC Open Ct Time Accepted Time Cleared Time Activated 08 Mar 2006 03 45 29 Alarm Log 0002 0057 Time of the event Number of the alarm being viewed Total number of alarms in the log Use the OPTION up and down to scroll through the alarm events that have been saved in the alarm log The alarm event will be transferred to the alarm log when the alarm has been cle
31. smitter This is achieved by entering the SETUP mode see chapter 5 The Activity indicators show actions that are happening in the background B The burner input has been enabled terminals 10811 A The transmitter is doing an auto calibration This happens every minute or when the AUTO CAL key is pressed in setup mode T Flashing The probe s is are below operating temperature 650 1200F Z The transmitter is doing an impedance check of the probe s Etech 1732 Oxygen Transmitter CONTROLS mu 11 4 2 Oxygen display The oxygen measurement is displayed on the top line of the transmitter It can be shown in either or ppm see chapter 5 2 3 Oxygen display units If is chosen the transmitter will maintain the best resolution available The display will show oxygen in the following format Oxygen measurement Display format 30 0 to 100 0 HH HV 10 00 to 29 99 HHH 0 200 to 9 999 HHHY lt 0 200 Scientific notation x 10 If ppm is chosen in Set up the transmitter will show the oxygen in ppm format between 10 and 9 999ppm Outside this range the oxygen will be shown in format The show oxygen in the following format Oxygen measurement Display format gt 10 000 format see above format 1 000 to 9 999ppm ppm 100 to 999 9ppm ppm 10 to 99 99ppm ppm lt 10ppm Scientific notation x 10 9 if tech 12 CONT
32. t from the remaining working probe RANGE 0 1 to 100 10 0 is set after a COLD START RANGE 0 to 200 seconds 60 seconds is set after a COLD START 5 2 9 High Deviation Alarm and Delay NOTE This menu function is read only To change this setting see the Technical Manual OXYGEN TRANSMITTER OXYGEN TRANSMITTER 1 3 High Deviation Alarm 1 4 Low O2 Alarm Delay 2 0 30 seconds Locked Locked Setup Menu Setup Menu If the transmitter has been selected to run a single probe these alarm screens will not appear If the transmitter has been selected to run dual probes it will show a high oxygen deviation alarm when the difference between the two oxygen measurements is above the trip level for longer than the delay time RANGE 0 1 to 100 2 0 is set after a COLD START RANGE 0 to 200 seconds 30 seconds is set after a COLD START NET tech 1732 Oxygen Transmitter RE CONTROLS mi 19 This page has been intentionally left blank 20 Etech CONTROLS mr ute 1732 Oxygen Transmitter 6 LARMS The 1732 has 4 alarm relays and a built in alarm annunciator and an alarm log When an alarm occurs and the ALARM up key is pressed the transmitter goes into the alarm display mode In this mode some of the keys take on a special function Key text RUN mode ALARM mode SETUP RUN Return to RUN mode DISPLAY FUNCTION up Next alarm time DISPLAY FUNCTION down Previous alarm time ALARM OPTION up Enter ALARM displ
33. the 1732 Technical Manual 1732 Oxygen Transmitter CONTROLS m u 25 7 1 Actions That Occur When the Gas Solenoid Keys Are Pressed Purge and Gas check mode Automatic Automatic Automatic Automatic Manual Manual Number of probes Gas option Gas 1 amp Gas 2 Gas 1 amp Gas 2 Gas 1 amp Gas 2 Gas 1 amp Gas 2 Pressing the GAS 1 PURGE 1 key will start the timed gas check cycle on solenoid 1 to probe 1 Pressing the GAS 2 PURGE 2 key will start the timed filter purge cycle on solenoid 2 to probe 1 Pressing the GAS 1 PURGE 1 key will start the timed gas check cycle on solenoid 1 to probe 1 Pressing the GAS 2 PURGE 2 key will start the timed gas check cycle on solenoid 2 to probe 1 Pressing the GAS 1 PURGE 1 key will start the timed filter purge cycle on solenoid 1 to probe 1 Pressing the GAS 2 PURGE 2 key will start the timed filter purge cycle on solenoid 2 to probe 2 Pressing the GAS 1 PURGE 1 key will start the timed gas check cycle on solenoid 1 to probe 1 Pressing the GAS 2 PURGE 2 key will start the timed gas check cycle on solenoid 2 to probe 2 Pressing the GAS 1 PURGE 1 key will turn on solenoid 1 to purge probe 1 for as long as the key is pressed Pressing the GAS 2 PURGE 2 key will turn on solenoid 2 to purge probe 1 for as long as the key is pressed Pressing the GAS 1 PURGE 1 key will turn on solenoid 1 to pass calibration
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