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Maintenance

AirLink 6940XP Operator’s Manual

Replacing the Desiccant

WARNING: Do not remove the sensor housing cap or enclosure lid while the circuits are

energized unless the area is determined to be non-hazardous. Keep the sensor
housing cap and enclosure lid tightly closed during operation.

Each AirLink 6940XP comes with a desiccant bag installed in the junction box. The contents are
blue when it is dry. As the desiccant absorbs moisture, it turns amber. Periodically check the
desiccant and replace it if it has turned amber.

Replacing the Battery

Under normal conditions, the AirLink 6940XP’s battery pack lasts 6 months (45 days if a PID
sensor is installed). When the battery indicator is blank, approximately 2 weeks of battery life
remain.
The presence of gas will increase the radio transmission rate and decrease the battery lifetime. It is
recommended that the battery pack be replaced when the voltage reported is 3.0 volts or less. See
page 29 to determine the battery voltage.

WARNING: Do not remove the sensor housing cap or enclosure lid while the circuits are

energized unless the area is determined to be non-hazardous. Keep the sensor
housing cap and enclosure lid tightly closed during operation.

WARNING: Only use RKI-supplied replacement battery packs.

CAUTION:

The internal components can be static sensitive. Use caution when opening the
enclosure and handling internal components. DO NOT use any metal objects or
tools to remove the batteries.

1. Press and hold

SUB

for approximately 6 seconds until “OFF” shows on the display screen.

2. Unscrew the enclosure lid, and set it aside.

3. Grip the front panel handles, lift the internal system out of the enclosure, and rest it against the

edge of the enclosure.

CAUTION:

Be sure power to the AirLink 6940XP is off before pulling out the internal system.

NOTE:

Disconnecting the sensor connector plug from the sensor housing connector
and the antenna fitting will allow for the complete removal of the internal
system from the device enclosure. Disconnecting the internal system may
provide ease in accessing the control board terminals for wiring. Reconnect
the sensor connector plug before reinstalling the internal system.

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Содержание AirLink 6940XP

Страница 1: ...RKI Instruments Inc www rkiinstruments com AirLink 6940XP Operator s Manual Part Number 71 0584 Revision P1 Released 4 14 22 ...

Страница 2: ...eriodic calibration and maintenance of the detector is essential for proper operation and correct readings Please calibrate and maintain this detector regularly Frequency of calibration depends upon the type of use you have and the sensor types For most applications typical calibration frequencies are between 3 and 6 months but can be more often or less often based on your usage ...

Страница 3: ...ates the full extent of our liability and we are not responsible for removal or replacement costs local repair costs transportation costs or contingent expenses incurred without our prior approval THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY AND ALL OTHER WARRANTIES AND REPRESENTATIONS EXPRESSED OR IMPLIED AND ALL OTHER OBLIGATIONS OR LIABILITIES ON THE PART OF RKI INSTRUMENTS INC INCLUDING BUT NOT L...

Страница 4: ...UEL D INSTRUCTIONS EN ENTIER AVANT D UTILISER D ENTERETENIR OU DE RÉPARER L ÉQUIPEMENT CAUTION THIS AREA MUST BE FREE OF FLAMMABLE GASES DURING CALIBRATION ATTENTION CETTE ZONE DOIT ETRE EXEMPTE DE GAZ INFLAMMABLES PENDANT L ETALONNAGE CAUTION TO PREVENT IGNITION OF EXPLOSIVE ATMOSPHERES remove from explosive atmosphere BEFORE SERVICING WARNING A conduit seal must be used within 18 inches of the e...

Страница 5: ...es 19 Closing the Enclosure 20 Start Up 21 Operation 23 Normal Operating Mode 23 Magnetic Buttons 24 Powering the Device 24 Faults 25 Above Background Display Behavior 25 Accessing the Settings Menus 26 Global Settings and Configuration 27 Global Settings Options 27 Network ID 28 Unit Information 29 Display Screen Contrast Setting 30 Return to Factory Default Settings 31 Exiting the Global Setting...

Страница 6: ...Test 45 Sensor Background Setting 46 Calibration Method 48 Sensor Information 49 Last Zero Cal Times 50 Reset Sensor Zero Cal 51 Exiting the Sensor Settings Menu 52 Maintenance 53 Troubleshooting 53 Replacing the Desiccant 55 Replacing the Batteries 55 Cleaning the 10 0 eV or 10 6 eV PID Lamp 58 Replacing the PID Lamp 62 Replacing the PID Electrode Stack 66 Replacing the Sensor 70 Parts List 74 ...

Страница 7: ...on press actions To apply the magnetic tool hold the tool to the side of the device enclosure adjacent to the push button that you wish to activate When the magnetic switch is toggled an on screen indicator will appear on the display screen signifying that a connection was made The AirLink 6940XP continuously monitors the gas level of the surrounding environment and reports once every minute The r...

Страница 8: ...pm Combustible Gas 0 100 LEL 1 LEL Cl 1 Div 1 10 20 50 100 LEL 0 100 volume 1 vol 100 100 100 100 Ethylene Oxide EtO 0 10 0 ppm 1 0 ppm Cl 1 Div 2 1 3 5 10 ppm Formaldehyde CH2O 0 10 00 ppm 0 01 ppm 0 5 2 5 10 ppm Hydrogen 0 100 LEL 1 LEL Cl 1 Div 1 10 20 50 100 LEL Hydrogen Chloride HCl 0 20 ppm 1 ppm Cl 1 Div 2 5 10 10 20 ppm 0 100 ppm 5 10 30 100 ppm Hydrogen Cyanide HCn 0 50 ppm Cl 1 Div 1 5 1...

Страница 9: ... 10 15 15 100 ppm Volatile organic com pounds VOCs isobuty lene calibration standard Low Range 10 6 eV Lamp 0 10 00 ppm 0 01 ppm Cl 1 Div 1 1 1 5 1 5 10 ppm 0 20 00 ppm 2 3 3 20 ppm 0 50 00 ppm 5 7 5 7 5 50 ppm High Range 10 6 eV Lamp 0 100 ppm 1 ppm Cl 1 Div 1 10 15 15 100 ppm 0 200 ppm 20 30 30 200 ppm 0 500 ppm 50 75 75 500 ppm 0 1 000 ppm 100 150 150 1 000 ppm 0 2 000 ppm 200 300 300 2 000 ppm...

Страница 10: ...l Li SOCl2 battery pack 3 6 VDC 76 Ah Battery Life 6 months 45 days for versions with PID NOTE When the battery indicator is blank approximately 2 weeks of battery life remain Operating Temperature Range 40 C to 60 C 40 F to 140 F Humidity Range 0 98 relative humidity non condensing Radio Output 900 MHz 52 networks 255 sensors per network OR 2 4 GHz 78 networks 255 sensors per network RF Connectio...

Страница 11: ...e AirLink 6940XP you must follow the instructions and warnings in this manual to assure proper and safe operation of the AirLink 6940XP and to minimize the risk of personal injury Be sure to maintain and periodically calibrate the AirLink 6940XP as described in this manual ...

Страница 12: ...cation 3 Mounting feet 13 ADD push button 4 BACK magnet switch location 14 MENU push button 5 SUB magnet switch location 15 BACK push button 6 Sensor Rain Guard Up to 4x 16 SUB push button 7 Sensor Housing Number 4 17 Front panel handles x2 8 Sensor Housing Number 3 18 Display screen 9 Sensor Housing Number 2 19 Enclosure lid with glass window 10 Sensor Housing Number 1 20 Magnetic tool NOTE The A...

Страница 13: ...ttery Pack Restraining strap 2 Antenna Fitting connector 10 Sensor 1 connector 3 Radio module 11 Sensor 2 connector 4 Power cable connection 12 Sensor 3 connector 5 Battery pack plug 13 Sensor 4 connector 6 Mounting socket 4x 14 Control board assembly 7 Battery pack 15 Terminal board assembly 8 Battery pack restraining strap thumbscrew 2x ...

Страница 14: ...loded Diagram 1 Enclosure lid with glass window 6 Sensor element Up to 4 2 Internal system 7 Sensor housing cap with flame arrestor Up to 4 3 Antenna fitting connector 8 Sensor housing plug Up to 4 4 Antenna fitting 9 Enclosure 5 Sensor housing base with sensor adapter board Up to 4 ...

Страница 15: ...ring environment and wire the AirLink 6940XP Mounting the AirLink 6940XP 1 Consider the following when you select the mounting location The unit should be placed greater than 6 5 feet 2 meters away from a monitor in order to ensure reliable communications Select a site where the AirLink 6940XP is not likely to be bumped or disturbed Make sure there is sufficient room to perform start up maintenanc...

Страница 16: ...e unit It is STRONGLY advised that a third party Certified Industrial Hygienist or other Certified Safety Professional conduct a site survey and annotate the location and quantity of detection devices that should be installed for EVERY installation of EVERY site 2 Select a mounting location and installation hardware Mounting to a concrete or steel structure is recommended to minimize vibration and...

Страница 17: ...e mounting area s classification and for the local electrical code The cable and cable bushing cable gland sent with the assembly are not explosion proof WARNING If installed in a classified area use appropriate construction technique to maintain the explosion proof classification of the assembly Figure 5 Remote Mounted Kit s Detector Junction Box Dimensions Ø 0 20 3 29 4 54 ...

Страница 18: ...e It can rest on the edge of the enclosure 3 One end of the cable has a connector and the other has ferruled wires 4 Feed the connector end of the cable through a 3 4 NPT conduit hub at the amplifier junction box WARNING If installed in a classified area use appropriate construction technique to maintain the explosion proof classification of the assembly 5 Plug the connector into the sensor connec...

Страница 19: ... gently lift the internal system out of the enclosure It can rest on the edge of the enclosure NOTE Disconnecting the sensor connector plug from the sensor housing connector and the antenna fitting will allow for the complete removal of the internal system from the device enclosure Disconnecting the internal system may provide ease in accessing the control board terminals for wiring Reconnect the ...

Страница 20: ...nclosure matching each mounting post to its corresponding eyelet anchored within the base of the enclosure 2 Using the front panel handles gently push to seat the internal system into the mounting posts 3 Verify that the sealing ring seated at the threaded opening of the device enclosure is correctly in place 4 Place the enclosure lid back onto the device and rotate it until the lid is tightly scr...

Страница 21: ...tartup period 3 5 minutes for versions with an LEL 5 At the end of the startup the AirLink 6940XP enters Normal Operating Mode 6 Allow the installation to warm up for the appropriate amount of time as indicated in the table below For units with multiple sensors the warm up period is based on the installed sensor with the longest warm up time Detection Gas Warm Up Time After an Extended Time Off Po...

Страница 22: ...spond until the AirLink 6940XP establishes a connection with the controller Hydrogen Chloride HCl 12 hours 10 minutes Hydrogen Cyanide HCn Hydrogen Fluoride HF 2 hours Hydrogen Sulfide H2S Nitric Oxide NO 12 hours Nitrogen Dioxide NO2 2 hours Oxygen O2 Ozone O3 Phosphine PH3 Sulfur Dioxide SO2 VOCs 10 minutes Detection Gas Warm Up Time After an Extended Time Off Power Warm Up Time After a Short Ti...

Страница 23: ...e display screen The display when in Normal Operating Mode appears as shown below The gas reading is sent back to the controller in 1 minute intervals when the reading is below the background setting page 46 When the reading surpasses the background setting the reading is sent back to the controller in 5 second intervals NOTE The user interface will be slow to respond until the AirLink 6940XP esta...

Страница 24: ...XP s batteries are first plugged in the unit does not automatically power on The directions below describe how to power on and power off the AirLink 6940XP once power has been applied Powering On Powering on the device begins the operation of the unit automatically initiating the system start up cycle and 1 minute warm up period 3 5 minutes for LEL versions The AirLink 6940XP will be in Normal Ope...

Страница 25: ... supplied to the unit Faults In the event of a device failure a fault code will replace the units of the affected channel When the fault is corrected the device returns to Normal Operating Mode and the affected channel s units reappear For a list of the fault codes and warning symbols of the AirLink 6940XP and their associated meanings see page 53 Above Background Display Behavior When any sensor ...

Страница 26: ...onfiguration menu screen appears on the display To select Global Settings press MENU To scroll through all four Sensor Setting menus press and release either ADD or SUB until the desired sensor setting menu is displayed The names of these menus correspond to the Sensor housing numbers indicated in Figure 1 on page 12 NOTE After 5 minutes of no interaction with the device the unit will automaticall...

Страница 27: ...seconds NOTE While in the Product Settings and Configuration menu the AirLink 6940XP continues monitoring Global Settings Options The Global Settings menu is the first menu item on screen when the device displays the Product Settings and Configuration menu Global settings affect all aspects of the AirLink 6940XP Press and release ADD or SUB to move through the settings listed below Network I D see...

Страница 28: ...AirLink 6940XP must have the same Network ID in order to communicate 1 If necessary enter the Product Settings and Configuration menu by pressing and holding MENU for 6 seconds Press MENU to select the Global Settings menu from the Product Settings and Configuration menu 2 Press MENU to enter the Network I D screen 3 Press and release ADD or SUB until the Network ID matches the value being used on...

Страница 29: ...date of manufacture of the sensor assembly The serial number of the sensor assembly This screen is for informational purposes only 1 If necessary enter the Product Settings and Configuration menu by pressing and holding MENU for 6 seconds Press MENU to select the Global Settings menu from the Product Settings and Configuration menu 2 Press and release ADD until the Info Screen option appears 3 Pre...

Страница 30: ... will cause the display image to become faint or indistinguishable especially when the unit is located in areas with full sun The resulting field of view could be misinterpreted as an error within the device Be sure to verify that the selected contract is within an appropriate range of viewing 1 If necessary enter the Product Settings and Configuration menu by pressing and holding MENU for 6 secon...

Страница 31: ...enu 2 Press and release ADD until the Return to Factory Default option appears 3 Press MENU to view the Return to Factory Default option screen 4 Press ADD to proceed to the Return to Factory Default confirmation screen If you do not wish to return the device to its factory default settings press SUB to return to the Global Settings menu Pressing MENU or BACK will also return the instrument to the...

Страница 32: ... the AirLink 6940XP s completion of the reset to factory default settings Press MENU or BACK to return to the Global Settings menu NOTE If the AirLink 6940XP is reset to the factory default settings ALL configuration steps MUST be repeated and the device MUST then be zeroed and calibrated for proper operation of the device Back Screen The Back Screen allows you to exit the Global Settings menu and...

Страница 33: ...orresponds with the sensor that you want to adjust NOTE While this manual only uses the Sensor 1 setting menu for its figures Sensors 2 3 and 4 all have identical menu options While in the Product Settings and Configuration menu the AirLink 6940XP continues monitoring Sensor Settings Options The Sensor Settings menus allow you to configure and calibrate each sensor individually Press and release A...

Страница 34: ... and 2 turned ON Sensors 3 and 4 turned OFF 3 Gas AirLink 6940XP Sensors 1 2 and 3 turned ON Sensor 4 turned OFF 4 Gas AirLink 6940XP Sensors 1 2 3 and 4 turned ON No sensors turned OFF 1 If necessary enter the Product Settings and Configuration menu by pressing and holding MENU for approximately 6 seconds Press and release ADD or SUB to navigate to the desired sensor settings menu then press MENU...

Страница 35: ... calibration cup calibration tubing zero air cylinder if not in a fresh air environment 100 N2 cylinder if zeroing a CO2 sensor NOTE Since there is a background of CO2 in air it is necessary to use a CO2 free cylinder when zeroing a CO2 sensor Procedure 1 If necessary enter the Product Settings and Configuration menu by pressing and holding MENU for approximately 6 seconds Press and release ADD or...

Страница 36: ...ero air calibration cylinder 100 N2 cylinder if zeroing a CO2 sensor d Use the sample tubing to connect the regulator to the calibration cup e Turn the regulator knob counterclockwise to open the regulator f Allow the gas to flow for 1 minute g Press MENU to select the Zero menu item h Press ADD to select Yes 7 The unit will automatically begin the 12 second zero process The display will show a co...

Страница 37: ...18 O2 is recommended Calibration Frequency A calibration should be performed EVERY thirty 30 days Days since the last calibration should NEVER exceed ninety 90 days RKI recommends that you calibrate your device regularly to ensure proper functionality and a safe work environment Materials 0 5 LPM fixed flow regulator with knob and calibration tubing WARNING If calibrating with Cl2 or HCl a regulat...

Страница 38: ...imately 6 seconds Press and release ADD or SUB to navigate to the desired sensor settings menu then press MENU to select the menu 3 Press and release ADD until the Cal menu item appears 4 Press MENU to select the Calibration menu item 5 Unscrew and remove the rain guard from the assembly 6 Install the calibration cup to the AirLink 6940XP s sensor housing 7 Use the sample tubing to connect the reg...

Страница 39: ...as Let the gas flow for 6 minutes For EtO calibration gas Let the gas flow for 1 5 minutes For HCl calibration gas Let the gas flow for 5 minutes 11 Press and release ADD or SUB to adjust the reading until the on screen value matches the concentration listed on the calibration cylinder For detectors using a surrogate gas adjust the reading to match the surrogate gas concentration multiplied by the...

Страница 40: ...brating with 100 N2 you must use Manual Cal To calibrate using Auto Cal a gas concentration between 10 and 18 O2 is recommended Calibration Frequency A calibration should be performed EVERY thirty 30 days Days since the last calibration should NEVER exceed ninety 90 days RKI recommends that you calibrate your device regularly to ensure proper functionality and a safe work environment Materials 0 5...

Страница 41: ...mately 6 seconds Press ADD or SUB to navigate to the desired sensor settings menu then press MENU to select the menu 3 Press and release ADD until the Cal menu item appears Press MENU to select the Cal menu item 4 Press ADD to proceed to the Auto Calibration confirmation screen To cancel calibration and return to the Sensor Settings menu press SUB Pressing MENU or BACK will also return the instrum...

Страница 42: ... factor listed in Table 4 on page 41 NOTE For 10 6 eV and 11 7 eV PID sensors if you are calibrating with a gas other than isobutylene you must take the calibration gas factor to isobutylene into account when setting the calibration gas concentration 7 Press MENU to save the gas concentration setting and advance to the calibration start screen 8 Unscrew and remove the rain guard from the assembly ...

Страница 43: ...nce the calibration countdown has started the process cannot be stopped without disconnecting the power from the unit 13 When calibration is complete the unit will display the desired calibration point Remove the calibration cup from the sensor housing and reinstall the rain guard NOTE If the sensor responds extremely slow or does not respond to the applied gas it may indicate a failed sensor elem...

Страница 44: ...nsor 3 is 3 and Sensor 4 is 4 1 If necessary enter the Product Settings and Configuration menu by pressing and holding MENU for approximately 6 seconds Press and release ADD or SUB to navigate to the desired sensor settings menu then press MENU to select the menu 2 Press and release ADD until the Radio Address menu item appears Press MENU to select the Radio Address menu item 3 Press and release A...

Страница 45: ... performing the alarm test Calibration mode allows data transmission without relay activation It is recommended that an alarm test be conducted EVERY 30 days alongside the maintenance and calibration of the detector Performing the Alarm Test The alarm test gas level reading can be increased or decreased in increments of 5 of the sensor scale up to 100 of the sensor scale 1 If necessary enter the P...

Страница 46: ...f gas presence does not increase the radio transmission rate Oxygen sensor assemblies have 2 setpoints L for readings below 20 9 and H for readings above 20 9 1 If necessary enter the Product Settings and Configuration menu by pressing and holding MENU for approximately 6 seconds Press and release ADD or SUB to navigate to the desired sensor settings menu then press MENU to select the menu 2 Press...

Страница 47: ... 4 For O2 sensor assemblies press ADD to navigate from the Background High menu item to the Background Low menu item Press MENU to select the Background Low menu item a Press ADD or SUB until the Background Low is set to the desired level b Press MENU or BACK to save the setting s and return to the Sensor Settings menu 5 Press MENU or BACK to save the setting and return to the Sensor Settings menu...

Страница 48: ...libration factory setting The reading can be entered manually by pressing and release the ADD or SUB buttons during calibration to match the on screen reading to the value of the gas being applied see page 37 Auto Calibration Sets the reading after a predetermined amount of time to the value entered during the auto calibration setup process see page 40 1 If necessary enter the Product Settings and...

Страница 49: ...as reading when zeroed The current voltage value in volts that the sensor element is reading This screen is for informational purposes only 1 If necessary enter the Product Settings and Configuration menu by pressing and holding MENU for approximately 6 seconds Press and release ADD or SUB to navigate to the desired sensor settings menu then press MENU to select the menu 2 Press and release ADD un...

Страница 50: ...fter an Auto Cal When performing a Manual Cal the gas reading must be adjusted by at least one button press to get this field to update 1 If necessary enter the Product Settings and Configuration menu by pressing and holding MENU for approximately 6 seconds Press and release ADD or SUB to navigate to the desired sensor settings menu then press MENU to select the menu 2 Press and release ADD until ...

Страница 51: ...e to the desired sensor settings menu then press MENU to select the menu 2 Press ADD until the Return Zero Cal to Default menu item appears Press MENU to select the Return Zero Cal to Default menu item 3 Press ADD to select Yes to advance to the Reset Zero Cal Only confirmation screen To return to the Sensor Settings menu press SUB to select No Pressing MENU or BACK also returns the instrument to ...

Страница 52: ...ngs menu NOTE If the AirLink 6940XP s stored Zero and Calibration values are reset the device MUST be zeroed and calibrated again for proper and safe operation of the device Back Screen The Back Screen allows you to exit the Sensor Settings menu and return back to the Product Settings and Configuration menu To access this menu item press and release ADD or SUB until the screen displays the Back Sc...

Страница 53: ...he exposure to certain airborne substances Loss of sensitivity or corrosion may be gradual if such materials are present in sufficient concentrations The performance of the device may be impaired during operation in the presence of substances that can cause corrosion on gold plating Other inhibiting substances are those that can coat the internal walls of the optical chamber and reduce reflectivit...

Страница 54: ...mbly 1 Check that the Network ID on the AirLink 6940XP matches the Primary Monitor Network ID 2 Move the AirLink 6940XP away from the obstruction or use a high gain antenna 3 Replace sensor radio module Battery indicator is blank Approximately 2 weeks of battery life remain Replace the battery pack soon System faults will activate the fault terminal on the device When replacing the sensor element ...

Страница 55: ...e WARNING Do not remove the sensor housing cap or enclosure lid while the circuits are energized unless the area is determined to be non hazardous Keep the sensor housing cap and enclosure lid tightly closed during operation WARNING Only use RKI supplied replacement battery packs CAUTION The internal components can be static sensitive Use caution when opening the enclosure and handling internal co...

Страница 56: ... Place the internal system back into the enclosure matching each mounting post to its corresponding eyelet anchored within the base of the enclosure 11 Using the handles gently push to seat the internal system into the mounting posts 12 Verify that the sealing ring seated at the threaded opening of the device enclosure is correctly in place 13 Secure the enclosure lid back onto the enclosure rotat...

Страница 57: ... installed sensor with the longest warm up time 16 Zero and calibrate the AirLink 6940XP s sensors as described on page 33 Detection Gas Warm Up Time Ammonia 4 hours Arsine 10 minutes Carbon Dioxide Carbon Monoxide Chlorine Chlorine Dioxide Combustible Gas Ethylene Oxide Formaldehyde Hydrogen Chloride Hydrogen Cyanide Hydrogen Fluoride Hydrogen Sulfide Nitric Oxide Nitrogen Dioxide Oxygen Ozone Ph...

Страница 58: ...V lamp if you notice a significant drop in sensitivity from one scheduled calibration to another or if you are not able to calibrate the detector 11 7 eV lamps should not be cleaned because of their susceptibility to moisture Cleaning Kit The lamp cleaning kits for 10 0 eV and 10 6 eV lamps include an electrode stack removal tool a small vial of aluminum oxide powder 40 cotton swabs 10 finger cots...

Страница 59: ... it is recommended that the finger cots be used on the fingers handling the lamp Finger cots are included with the lamp cleaning kit 6 Hold the PID sensor steady on the working surface with one hand and using the other hand locate the tabs on the electrode stack removal tool and insert them into the slots on the side of the PID sensor near the face Figure 7 Using Removal Tool 7 Squeeze the removal...

Страница 60: ...inum oxide powder on a cotton swab 12 Use this cotton swab to polish the PID lamp window Use a circular motion applying light pressure to clean the lamp window Do not touch the lamp window with your fingers Figure 9 Polishing the Electrode Lamp Window 13 Continue polishing until you can hear a squeaking sound made by the cotton swab moving over the window surface This usually occurs after about 15...

Страница 61: ...dow is snug against the stack s front electrode The lamp should be supported by the O ring 18 Continuing to hold the electrode stack between your forefinger and thumb carefully insert the lamp into the lamp cavity in the sensor ensuring that the lamp remains in position 19 Press in the electrode stack firmly to ensure that the stack wing clips are engaged and the faces of the stack and sensor body...

Страница 62: ...he circuits are energized unless the area is determined to be non hazardous Keep the sensor housing cap and enclosure lid tightly closed during operation CAUTION The internal components can be static sensitive Use caution when opening the enclosure and handling internal components DO NOT use any metal objects or tools to remove the sensor If cleaning the PID lamp does not resolve any calibration p...

Страница 63: ...ndow the flat end with your fingers as this may contaminate the window with finger oil 1 Press and hold SUB for approximately 6 seconds until OFF shows on the display screen 2 Unscrew and remove the sensor housing cap from the sensor housing base Set aside Table 5 PID Sensor Replacement Lamp Part Number Sensor Part Number Replacement Lamp Part Number 61 0302 51 1503 61 0303 61 0304 61 0305 51 1504...

Страница 64: ...sensor near the face Figure 11 Using Removal Tool 6 Squeeze the removal tool to push the tabs into the sensor slots until the electrode stack and lamp are released 7 Carefully lift the PID sensor body away from the electrode stack and lamp If the lamp remains lodged in the sensor body carefully remove it with tweezers 8 If the spring in the lamp cavity comes out place it back into the lamp cavity ...

Страница 65: ...o ensure the lamp window is snug against the stack s front electrode The lamp should be supported by the O ring 12 Continuing to hold the electrode stack between your forefinger and thumb carefully insert the lamp into the lamp cavity in the sensor ensuring that the lamp remains in position 13 Press in the electrode stack firmly to ensure that the stack wing clips are engaged and the faces of the ...

Страница 66: ...n be static sensitive Use caution when opening the enclosure and handling internal components DO NOT use any metal objects or tools to remove the sensor The electrode stack can last for the life of the PID sensor if the AirLink 6940XP is used in a very clean controlled environment When used in a heavily contaminated or dirty environment the electrode stack may only last a month A contaminated elec...

Страница 67: ...or housing base Set aside 3 Gently unplug the sensor element from the sensor housing board 4 Place the PID sensor face down on a flat clean working surface NOTE At this point it is recommended that the finger cots be used on the fingers handling the lamp Finger cots are included with the lamp cleaning kit ...

Страница 68: ...with tweezers 8 If the spring in the lamp cavity comes out place it back into the lamp cavity 9 Discard the old electrode stack 10 Hold the new electrode stack between the thumb and forefinger of one hand and place the window end of the lamp inside the O ring seal in the new electrode stack with the other hand as shown below Take care not to touch the lamp window Figure 14 Reinstalling Electrode L...

Страница 69: ... into the sensor housing board Ensure that the pins on the sensing element align with the sockets on the sensor housing board 15 Screw the sensor housing cap back onto the sensor housing base ensuring that the sensor housing cap is only tightened hand tight 16 Press ADD to initiate the 1 minute startup 3 5 minutes for LEL versions 17 Wait 10 minutes and then zero and calibrate the detector as desc...

Страница 70: ...bserved during the normal calibration process After replacing the sensor element the device MUST be zeroed and calibrated for proper operation of the device CAUTION Do not remove the sensor housing cap or enclosure lid while the circuits are energized unless the area is determined to be non hazardous Keep the sensor housing cap and enclosure lid tightly closed during operation 1 Press and hold SUB...

Страница 71: ...he new sensor element into the sensor housing board Ensure that the pins on the sensing element align with the sockets on the sensor housing board NOTE Some electrochemical sensing elements are shipped with a shorting spring between two of the pins this shorting spring MUST be removed before installing the sensing element ...

Страница 72: ...ed in the table below For units with multiple sensors the warm up period should be based on the installed sensor s with the longest warm up time Detection Gas Warm Up Time Ammonia NH3 12 hours Arsine AsH3 2 hours Carbon Dioxide CO2 10 minutes Carbon Monoxide CO 2 hours Chlorine Cl2 Chlorine Dioxide ClO2 Combustible Gas 10 minutes Ethylene Oxide EtO 48 hours Formaldehyde CH2O 10 minutes Hydrogen H2...

Страница 73: ... AirLink 6940XP Operator s Manual 9 Zero and calibrate the detector as described on page 35 Nitrogen Dioxide NO2 2 hours Oxygen O2 Ozone O3 Phosphine PH3 Sulfur Dioxide SO2 VOCs 10 minutes Detection Gas Warm Up Time ...

Страница 74: ...eV sensors 51 1504 PID sensor replacement lamp 11 7 eV sensor 61 0302 10 6 eV low range replacement sensor with lamp and stack 61 0303 10 6 eV high range replacement sensor with lamp and stack 61 0304 11 7 eV replacement sensor with lamp and stack 61 0305 10 0 eV replacement sensor with lamp and stack 61 2003 Remote sensor mounting kit 7 pin explosion proof 66 0001 Sensor carbon monoxide CO for up...

Страница 75: ...rocarbons LPIR type 100 volume full scale 66 0066 Sensor general hydrocarbons LPIR type 100 LEL full scale 66 0067 Sensor carbon dioxide CO2 LPIR type 5 0 volume full scale 66 0068 Sensor arsine AsH3 1 00 ppm full scale 71 0584 AirLink 6940XP Operator s Manual this document 81 0002RK 01 Calibration cylinder 50 LEL hydrogen in air 34 liter steel 81 0002RK 03 Calibration cylinder 50 LEL hydrogen in ...

Страница 76: ...34 liter aluminum 81 0104RK 04 Calibration cylinder 10 ppm isobutylene in air 34 liter aluminum 81 0146RK 02 Calibration cylinder 200 ppm H2S in nitrogen 58 liter 81 0149RK 02 Calibration cylinder 5 ppm H2S in nitrogen 58 liter 81 0149RK 04 Calibration cylinder 5 ppm H2S in nitrogen 34 liter aluminum 81 0150RK 02 Calibration cylinder 10 ppm H2S in nitrogen 58 liter 81 0150RK 04 Calibration cylinde...

Страница 77: ... cylinder 10 ppm HCN in nitrogen 58 liter 81 0196RK 04 Calibration cylinder 10 ppm HCN in nitrogen 34 liter aluminum 81 1050RK Regulator with gauge and knob 0 5 LPM for 17 liter and 34 liter steel calibration cylinders cylinders with external threads 81 1051RK Regulator with gauge and knob 0 5 LPM for 34 liter aluminum 58 liter and 103 liter calibration cylinders cylinders with internal threads 81...

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