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PureAire Monitoring Systems, Inc.

16

5: Universal Gas Detector Programming

The Universal Gas Detector is supplied with user selectable settings to adjust the alarm settings,
4 and 20mA output and minor sensor adjustments. The settings are arranged in menus that are
accessed by moving the joystick. To access the menus a factory set password is used.

NOTE:

The Universal Gas Detector will continuously monitor gas while accessing the menus.

The alarm, fault relays and mA output are all active and on line while making any changes
to the menus.

5.1 Joystick Operation

The Universal Gas Detector uses a 4-position joystick with a center pushbutton for selecting
menus and changing values. The joystick is programmed to standard protocol as follows:

NOTE: The joystick has a built-in delay to prevent accidental tampering of the menus.

Deliberate entries are required.

CAUTION:

Only qualified personnel should perform programming, maintenance and sensor

verification.

+

Plus

-

Minus

Previous
s

Next

Plus

–

Pushing the joystick in this direction increases the value

Minus

–

Pushing the joystick in this direction decreases the value

Next

–

Pushing the joystick in this direction moves you to the next level of the menu hierarchy.

Previous

–

Pushing the joystick in this direction takes you out to the last level of menu hierarchy.

Enter

–

Pushing the joystick directly in the center enters the information into the microprocessor

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Содержание Universal Gas Detector

Страница 1: ...Universal Gas Detector Instruction Manual PureAire Monitoring Systems Inc 1140 Ensell Road Lake Zurich Illinois 60047 Phone 847 726 6000 Fax 847 726 6051 Toll Free 888 788 8050 pureairemonitoring com ...

Страница 2: ...e products and commitment to service will satisfy your specific monitoring needs now and in the future Our growth is a result of our total commitment to supporting our customers We re available 24 hours a day 7 days a week to help you when you need us Our 24 hour Emergency phone number is 1 847 420 3814 We can provide field service preventative maintenance programs and training to your technicians...

Страница 3: ...ring the sensor cell never store the sensor cell horizontal with the pressure compensation screw positioned down or store the sensor cell upside down This can cause the electrolyte to leak from the sensor cell pressure compensation screw PureAire Renewable sensor cell has a 7 pin connector that connects to the transmitter and remote sensor cable NEVER twist the sensor when connected to the transmi...

Страница 4: ... Gas Detector Programming 16 5 1 Joystick Operation 16 5 2 Program Flowchart 17 5 3 Entering the Password 21 5 4 Changing the User Password 22 5 5 Entering the Menus 25 5 5 1 Set 4 20mA Loop 25 5 5 2 Set Formats 27 5 5 3 Set Alarm Threshold Polarity 29 5 5 4 Set Latching 31 5 5 5 Resetting a Latching Alarm 33 5 5 6 Set Alarm Delay 33 5 5 7 Set Zero Suppression 34 5 5 8 Set Alarm Thresholds 34 5 5 ...

Страница 5: ...te up to 30 feet from the transmitter Quick simple remote sensor gas calibration the sensor span stays with the sensor Digital display and built in audible horn User selectable dual level alarm and system fault relays Renewable long life electrochemical sensor cell 24 VDC operation 4 20 mA output Supervised electronics monitors electronics with separate fault relay C UL listed Measuring Equipment ...

Страница 6: ...mitter operation This smart circuitry alerts the user to sensor faults and other electrical problems that may interrupt surveillance through the standard mA signal output signal and through the fault relay 1 1 3 Calibration The PureAire Gas Sensor used with the Universal Gas Detector has a dedicated microcontroller built directly into the sensor electronics which allows you to remove from it the t...

Страница 7: ...transmitter case as shown If the optional 30 foot remote sensor cable is used it is connected into a second cable port See photo below 5 Mounting Feet There are 4 feet used to mount the Universal Gas Detector to a wall or other flat surface 6 Transmitter Cover A removable cover that protects the interior of the transmitter 7 Transmitter Cover Fasteners There are 4ea captive plastic screws secure t...

Страница 8: ...vate when the alarm levels go above the selected alarm thresholds The audio alarm is non latching and will automatically turn off when the gas levels go below the alarm thresholds NOTE The audio alarm is an immediate alarm Gas concentration levels must Recover below the alarm thresholds before the horn turns off There is no alarm delay function available 11 ...

Страница 9: ...log output connection is made 2 Sensor Cell Connector This connector is where the gas sensor is connected 1 2 5 Alarm Relay Board 1 Power Analog output Terminal Block Fuse Field replaceable Common Common mA output 24 VDC 24 VDC Relay 2 Relay 1 Fault Relay Remote NC C NO NC C NO NC C NO Reset Horn Connector Gas sensor connector 2 Sensor cell connector ...

Страница 10: ... oriented in any direction Feet can also be removed for mounting the monitor flush with a wall or other surface Universal Gas Detector with remote cable connected to a duct Max cable length 30 feet Universal Gas Detector with remote cable connected to the wall Max cable length 30 feet ...

Страница 11: ...t E363306 Enclosure Polycarbonate UL listed designed for indoor use Optional NEMA 4X IP65 water resistant without built in horn 2 2 Gas Detection System Universal Microprocessor electronics with built in 3 digit backlit LCD display Transmitter Two alarm relays one fault relay and 4 20mA analog output Joystick operated menus 2 3 Signal Outputs Local Display Digital display set for the proper gas an...

Страница 12: ...Threshold Polarity Alarm 1 Normal Alarm 2 Normal Audio Normal Do you want to alarm at a level higher normal or lower inverted than the alarm threshold Set Latching Alarm 1 Non latching Alarm 2 Non latching Audio Non latching Do you want the alarm to automatically reset non latching or do you want to manually reset the alarm latching Alarm Delay Alarm 5 seconds How long do you want to wait until th...

Страница 13: ...or wall mounting and should be installed at a height convenient for operation maintenance and viewing of the instrument display The following is a drawing of the mounting dimensions 3 2 2 Universal Gas Detector The transmitter and sensor should be installed in a location where gas leaks are likely to occur or where released gases may accumulate It should be mounted no closer than 12 inches above f...

Страница 14: ...ut and VDC power in connections are made on the terminal block inside the transmitter housing These connections are made as follows Pin Connection Description Common Signal Ground 0V Common Signal Ground 0V MA Signal Out DC 4 20mA Output Power DC 24V Input Power DC 24V Input NOTE PureAire has added additional contacts for 24VDC power and Common to accommodate additional wiring for remote horns and...

Страница 15: ... 1 Unpack the sensor cell from the plastic packing 2 Remove the shorting jumper from the sensor cell connector located on the top of the sensor IMPORTANT Failure to remove the shorting jumper before connecting the sensor cell to the transmitter will damage the sensor cell and void your warranty 3 Insert the sensor cell into the cell holder on the universal transmitter Carefully rotate the sensor t...

Страница 16: ...t a 2 mA signal and illuminate the fault LED The LED will turn off at the end of the warm up NOTE After power up it is necessary to reset the zero Refer to Section 6 2 4 NOTE At initial power up the internal relays and horn will activate momentarily If you have external horns and alarms connected to the detectors internal relays they will also activate Gas Name 30 WARM Universal transmitter Cell H...

Страница 17: ... Range Fault code 16 Analog output drops to 2 mA Sensor cell cable cut Analog output drops to 2 mA Communications Error with Sensor Cell Missing Fault Code 01 Analog output drops to 2 mA 0 mA on request Fault Relay activates System Warm Up Analog output drops to 2 mA Fault Relay activates and turns off when system is in the measurement mode NOTE If a Fault condition clears itself Yellow LED is no ...

Страница 18: ...nths 4 4 Loss of Power Indicator In the event the Universal Gas Detector loses 24VDC power the 4 20 mA analog output signal drops to 0mA The LCD display will also display a blank screen 4 5 Alarm Reset Whenever the detector alarms are activated the built in alarm relays panel mounted LED s and audio horn will also activate When the relay settings are non latching the alarm relays LED s and horn wi...

Страница 19: ...sition joystick with a center pushbutton for selecting menus and changing values The joystick is programmed to standard protocol as follows NOTE The joystick has a built in delay to prevent accidental tampering of the menus Deliberate entries are required CAUTION Only qualified personnel should perform programming maintenance and sensor verification Plus Minus Previous s Next Plus Pushing the joys...

Страница 20: ...t 4 20mA loop Set 4mA Zero 126 Set 20mA Span 075 Enter Password A Test Loop Alarms Testing Set Formats Format Relay 2 Format Relay 1 Normal Invert Normal Invert Format Fault Relay Normal Invert NOTE All numerical values shown are only examples and are not Factory Defaults Gas 0 0 ppm ...

Страница 21: ...nvert Alarm Delay 005 Set Audio Alarm Polarity Normal PassCode OK Nonlatch Set Latching Relay 2 Set Latching Set Latching Relay 1 Nonlatch Latch Nonlatch Latch Set Latching Audio NOTE All numerical values shown are only examples and are not Factory Defaults NOTE Zero suppression function is not available for Oxygen Invert Latch ...

Страница 22: ...on 0 2 ppm Set Relay 1 Alarm 5 ppm Set Relay 2 Alarm 10 ppm Set Audio Alarm 5 ppm Set Alarm Thresholds PassCode OK Set Alarm 1 Hysteresis ppm or Set Alarm 2 Hysteresis ppm or Set Audio Alarm Hysteresis ppm or Set Alarm Hysteresis NOTE All numerical values shown are only examples and are Not Factory Defaults ...

Страница 23: ...PureAire Monitoring Systems Inc 20 PassCode OK Manage Passwords Enter New User Password Enter minimum of 2 characters Enable User Password Enabled Disabled Reset User Password Reset to Factory Default ...

Страница 24: ...ric display and toggles from A through Z followed by 0 to 9 The character to be entered will flash 4 Push the joystick again to the right to select the second entry Push the joystick up or down to select the second digit The character being entered will flash and the first character entered will remain lit 5 Push the joystick again to the right to select the third entry Push the joystick up or dow...

Страница 25: ... New User Password will scroll on the first line of the digital display 3 Push the joystick to the right to enter the input screen The letter A will appear and flash NOTE The display has characters that start with A through Z and 0 through 9 Pushing the joystick up or down will permit you to scroll through the alphanumeric characters 4 Push the joystick up or down to enter the first digit The disp...

Страница 26: ...d toggles from A through Z followed by 0 to 9 The character to be entered will flash 10 Push the joystick again to the right to select the second entry Push the joystick up or down to select the second digit The character being entered will flash and the first character entered will remain lit 11 Push the joystick again to the right to select the third entry Push the joystick up or down to select ...

Страница 27: ... If enabled it will display Enabled Push the joystick up or down to change the status Once enabled or disabled is selected Push the joystick in the center to enter the new status If entered correctly the display will scroll Enable User Password 5 4 2 Reset User Password This menu permits you to reset the password back to 557 as set at the factory Push the joystick right to display the menu Reset t...

Страница 28: ...ureAire for more information From this main menu pushing the joystick to the right will select the sub menu and the digital display will scroll the following This is the menu at which to adjust the 4mA output being sent from the Universal Gas Detector To change the 4 mA output push the joystick right to display the 4 mA Zero setting The display will indicate a value between 0 and 255 counts Pushin...

Страница 29: ...hich to test the entire 4 and 20mA output range being sent from the Universal Gas Detector To enter the menu push the joystick right The display will indicate Testing The display will indicate a value between 0 0 ppm and full scale ppm reading Pushing the joystick up slowly increases the ppm value From a 0 0ppm indication pushing the joystick down will immediately display a full scale ppm reading ...

Страница 30: ...l select the sub menu and the digital display will scroll the following This is the menu at which to adjust the first level alarm relay state on the Universal Gas Detector To change this value push the joystick right to display the relay state The display will indicate NORMAL Pushing the joystick down will change the relay state from NORMAL to INVERT NOTE If inverted the Alarm 1 LED will illuminat...

Страница 31: ...te by pushing the joystick left the display will default back to the Set Formats Relay 2 menu The display will scroll the following Push the joystick down to access the next menu Format Fault Relay The display will scroll the following This is the menu at which to adjust the fault alarm relay state on the Universal Gas Detector To change this value push the joystick right to display the relay stat...

Страница 32: ...Set Formats menu push the joystick down to display the Set Alarm Threshold Polarity menu The display will scroll the following Push the joystick right to access the first sub menu Set Alarm 1 Polarity will scroll on the display This is the menu at which to adjust the first level alarm polarity state on the Universal Gas Detector To change this value push the joystick right to display the relay sta...

Страница 33: ...ng the joystick left the display will default back to the Set Alarm 2 Polarity menu The display will scroll the following Push the joystick down to access the next sub menu Set Audio Alarm Polarity will scroll on the display This is the menu at which to adjust the second level alarm polarity state on the Universal Gas Detector To change this value push the joystick right to display the relay state...

Страница 34: ...ion has returned to below the alarm threshold To access this menu push the joystick down to display the Set Latching menu The display will scroll the following Push the joystick right to access the first sub menu Set Latching Relay 1 will scroll on the display This is the menu at which to adjust the first level alarm latching state on the Universal Gas Detector To change this state push the joysti...

Страница 35: ...ng the joystick left the display will default back to the Set Latching Relay 2 menu The display will scroll the following Push the joystick down to access the next sub menu Set Latching Audio Alarm will scroll on the display This is the menu at which to adjust the Audio alarm relay state on the Universal Gas Detector This is the menu at which to adjust the Audio alarm relay state on the Universal ...

Страница 36: ...instrument s gas concentration alarm s will be activated This menu will permit setting a user selected time delay for activating alarm relays 1 and 2 You can select from 0 seconds up to 255 seconds after an alarm level has been exceeded before the alarm relays will activate To change this value push the joystick right to display the Alarm Delay screen The display will indicate a value between 0 an...

Страница 37: ...isplay will indicate a value between 0 and 255 seconds Pushing the joystick up increases the value and pushing the joystick down decreases the value After entering the zero suppression ppm pushing the joystick left the display will default back to the Zero Suppression menu The display will scroll the following 5 5 8 Set Alarm Thresholds This main menu will permit adjusting the gas ppm concentratio...

Страница 38: ...d will scroll on the digital display This is the gas concentration at which the instrument s second level alarm will be activated To change the displayed value push the joystick to the right to display the second level alarm setting The display will indicate a value between 0 0 ppm and full scale of the monitor Pushing the joystick up increases the value and pushing the joystick down decreases the...

Страница 39: ...ed as a control system When used to regulate gas levels the need of a dead band hysteresis may be required for the alarm relays This menu will permit the setting of the alarm hysteresis to a desired gas concentration When using hysteresis the alarm set point now becomes an average alarm setting for an action to occur When adding the hysteresis value to the alarm set point this then defines the ala...

Страница 40: ...the joystick up increases the percentage up to a maximum value of the full range for the monitor Adjust the digital display until the desired hysteresis value is selected After entering the alarm 2 hysteresis pushing the joystick left the display will default back to the Set Alarm 2 Hysteresis menu The display will scroll the following Push the joystick down to access the next sub menu Set Alarm A...

Страница 41: ...al Gas Detector to a known span gas concentration It is recommended to calibrate the detector every six months or anytime the sensor cell electrolyte is replaced For a complete explanation of the sensor cell calibration procedure refer to Section 6 2 5 5 11 Main Operation Mode To select the main menu from any sub menu push the joystick left until the Main Menu appears The digital display will indi...

Страница 42: ...r to section 6 1 2 for sensor spare parts Box Nut Membrane Retainer Ring Membrane O ring Sensing Electrode Silicon Sheet 4 Place the sensor over the beaker as shown and pour the old electrolyte into the beaker Pressure Compensation Screw Beaker for Old Electrolyte NOTE The sensor has a breather plug on the side of the sensor It is covered with a white membrane the Miliseal p n SC2009 DO NOT REMOVE...

Страница 43: ...ctrolyte into the sensor and rinse Discard into the beaker Sensing Electrode Nozzled Electrolyte Bottle Pressure Compensation Port Electrolyte 6 Place the sensor over the beaker as shown and pour the rinsed electrolyte into the beaker Pressure Compensation Screw Beaker for Old Electrolyte E e c t r o l y t e P N EL 160 1 ...

Страница 44: ...l it reaches the MAX mark Sensing Electrode Nozzled Electrolyte Bottle Pressure Compensation Port Electrolyte 7 Wipe the sensing electrode and the surrounding area with a dry paper tissue Make sure that the area is dry of electrolyte Sensing Electrode Paper Tissue Fill level the MAX mark ...

Страница 45: ... membrane Enlarged View Mmebrane Electrolyte Bead Sensing Electrode Mmebrane Membrane Caution Different sensors use membranes with either a Green or Blue tinted paper separating each membrane DO NOT USE THIS PAPER NOTE If reusing the old O ring and Silicon sheet please dry them thoroughly before reinstalling Membrane Color is White NOTE Never touch the center of the membrane with bare fingers Memb...

Страница 46: ...ore reinstalling the Box nut and Membrane retainer ring dry thoroughly with a paper towel Membrane Retainer Ring 12 Turn the cell to the proper monitoring direction Box Nut is facing down and confirm that the level of electrolyte is at the MAX mark It is OK if the level is slightly above or below the MAX mark Example of proper membrane Example of wrinkled membrane NOTE When storing the sensor cell...

Страница 47: ...961 Br2 I2 0 3 ppm EL 960 1 M 900M White Yes GS 960 Br2 I2 3 ppm EL 960 1 M 900M White No GS 1461 F2 1 ppm EL 1460 1 M 1400M White Yes GS 1460 F2 3 ppm EL 1460 1 M 1400M White No GS 1550 H2 1 4 EL 1555 M 1502B Black No GS 1680 CH3OOH 30 ppm El 1668 M 1600M White Yes GS 1750 NO2 15 ppm El 1755 M 1700M Black No GS 1783 HNO3 6 ppm El 1768 M 1700M White Yes GS 2460 NH3 75 ppm EL 2460 5 M 2400M White N...

Страница 48: ...tion certified by a gas supplier PureAire recommends the use of specialty gas suppliers for obtaining calibration gas standards All span gases must be a blend of the target gas blended in air NOTE Span gas must be blended with air Do not blend with nitrogen The target gas concentration should be in the middle of the dynamic range of the detector i e for a 0 10ppm range use 5ppm gas In the absence ...

Страница 49: ...gas balance air 1 CZF7R000255 CalGas p n Regulator Model 715 500 cc min flow 1 83505 PureAire p n Calibration Cap 1 90054 Span gas tubing Assy 1 6 2 3 Sensor Calibration Procedure 1 If the instrument is connected to a controller set the controller to Standby mode to avoid accidental alarms 2 Remove the smoked front transmitter cover 3 Enter the password to permit access to the menus 4 Push the joy...

Страница 50: ...ng calibration gases NOTE The target gas concentration should be in the middle of the dynamic range of the detector 1 Insert the sensor cell inside the Calibration cap 83505 NOTE DO NOT twist the sensor cell inside of the calibration cap as it will cause the sensor electrolyte to leak Gently rock the sensor side to side to insert or remove the sensor cell to the calibration cap 2 Connect the Span ...

Страница 51: ...pan to the span gas cylinder by pushing the joystick UP or Down When holding the joystick in either position the numbers will automatically move one count every second Increasing or decreasing the values will increase or decrease the PPM reading on the detector 8 When the reading is set to the span gas value push the joystick left once to enter the setting and take you back to the Set Sensor Span ...

Страница 52: ... calibration cap by gently rocking the sensor from the cap 10 Allow the instrument to return to a zero reading If the instrument has not returned to zero after 5 minutes reset the zero Refer to section 6 1 4 11 Push the joystick Left three times 3 to return to the main menu Gas Name 0 0 PPM ...

Страница 53: ...ave a built in 4 20mA output The remote display alarm easily connects to the monitor s input power and mA output connection An 18 AWG three conductor shielded control and instrumentation cable Belden 8770 or equivalent is recommended for the connection The maximum permissible cable length is 250 feet You can simultaneously connect one remote display to one PureAire monitor and one programmable log...

Страница 54: ...rate the front panel from the case Mount the case to a wall or other flat surface There are 4ea through holes for fastening the case The case is designed to be flush mounted NOTE The front cover can be removed from the case by gently pulling on the plastic hinges they will stay connected to the front cover To connect the front cover just push the plastic hinge into the case ...

Страница 55: ...vate When used with our toxic gas monitors the polarity is set to Above Normally set at the factory 3 Range Auto Adjustment Switches These switches are used to adjust the zero and full scale reading on the Remote Display Alarm Indicator When sending a 4mA and 20mA signal from Max distance 250 feet CAUTION Make all wire terminations with the power OFF Failure to do so can damage the Universal Gas D...

Страница 56: ... How to Setup and Operate the Remote Display CAUTION Entering the set up menus will disable the real time gas detector readings After wiring the remote display to your monitor turn on the power to your monitor During the warm up the remote display will illuminate a yellow fault LED and the display will read FLt indicating that the Universal Gas Detector is in fault This will clear after the Univer...

Страница 57: ...r your monitor If necessary you can push the joystick up or down to fine tune the full scale reading NOTE To fine tune the reading to match the reading on the monitor use the Set 20mA Span menu Push the joystick up or down until both displays match CAUTION If the monitor is in the measuring mode and the ZERO push button is pressed an Err will be displayed on the remote display and no readings will...

Страница 58: ... back to the monitoring mode How to connect a Horn and Strobe to the monitor 45101 Power supply 115 VAC 24 VDC 1 amp Regulated power supply NC Common NO Common Main Power Board Alarm 2 Alarm 1 Fault Relay Board Federal Signal Horn Strobe 42002 This drawing shows how to connect a remote Horn and strobe to PureAire s Universal Gas Detector with the Alarm relay 1 set to a Normally Open position Note ...

Страница 59: ... Terminal Strip External relay coil Relay coil voltage rating must match external voltage source External relay using internal 24 VDC power supply COM N O Relay 1 or Relay 2 Terminal Strip 24 VDC 24 VDC External 24 VDC relay coil Install 1N4004 or similar diode across coil CAUTION PureAire Monitoring Systems does not recommend using 120VAC or higher voltage inside the monitor Use 24 VAC or 24 VDC ...

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