Rki-instruments GX-2012 Manual User Manual

www.rkiinstruments.comGX-2012Operator’s ManualPart Number: 71-0239RKRevision: HReleased: 3/17/14

2 • About the GX-2012 GX-2012 Operator’s Manual• CSA classification pending for Class I, Division I, Groups A, B, C, and D hazardous atmospheresWARNIN

92 • Leak Testing GX-2012 Operator’s Manual2. Move the probe tip or tapered nozzle tip back and forth along the area where a leak is suspected. 3. Obs

GX-2012 Operator’s Manual Leak Testing • 93• Exceeding 100% LELIf the combustible gas level exceeds 100% LEL, the GX-2012 will display an overscale al

94 • Leak Testing GX-2012 Operator’s ManualPeak Hold ModePeak Hold Mode allows the user to view the peak methane reading for the operating session whi

GX-2012 Operator’s Manual Leak Testing • 95Check Mode” on page 84. Select the desired display range. In the example below, 500 ppm has been selected.

96 • Leak Testing GX-2012 Operator’s Manualwhen you press POWER ENTER. The full scale display range value will continue to be displayed in the Peak Re

GX-2012 Operator’s Manual Leak Testing • 97Viewing Snap Log Data in Leak Check Mode OperationSnap log data can be viewed while in Leak Check Mode. If

98 • Leak Testing GX-2012 Operator’s Manualoperation will have two snap log ID numbers. One number is for the base reading and the other is for the pe

GX-2012 Operator’s Manual Leak Testing • 99The gas readings that were taken during the snap log are displayed and the Station ID that was in use durin

100 • Overview GX-2012 Operator’s ManualChapter 6: Maintenance ModeOverviewThis chapter describes the GX-2012 in Maintenance Mode. In Maintenance Mode

GX-2012 Operator’s Manual Tips for Using Maintenance Mode • 101• update the backlight settings• turn the autozero function on or off• turn the demand

GX-2012 Operator’s Manual Specifications • 3SpecificationsTable 1: GX-2012 SpecificationsTarget Gas %LEL Combustible Gas(Methane Calibration Standard)

102 • Using Maintenance Mode GX-2012 Operator’s Manual2. Press and hold the AIRS and (SHIFT)T buttons, then press and hold the POWER ENTER button. Whe

GX-2012 Operator’s Manual Using Maintenance Mode • 1035. Once you enter Maintenance Mode, MAINTENANCE will appear along the top of the screen. The Dat

104 • Using Maintenance Mode GX-2012 Operator’s Manual2. Use the AIRS or (SHIFT)T buttons to navigate to the AIR CAL menu option.3. Press and release

GX-2012 Operator’s Manual Using Maintenance Mode • 105Calibrating Using Auto CalibrationIf CL EXPRD is set to NOT USE and calibration becomes due, the

106 • Using Maintenance Mode GX-2012 Operator’s Manual7. Use the AIRS or (SHIFT)T button to alternate between the 4-gas and the %volume combustible ga

GX-2012 Operator’s Manual Using Maintenance Mode • 107sensors.15. After the last calibration gas value is set, use the AIRS button to scroll to ESCAPE

108 • Using Maintenance Mode GX-2012 Operator’s Manual19. Press and release the POWER ENTER button to set the calibration to the programmed values.If

GX-2012 Operator’s Manual Using Maintenance Mode • 109cylinder consists of 50% LEL methane, 12% oxygen, 50 ppm CO, 25 ppm H2S, and a balance of nitrog

110 • Using Maintenance Mode GX-2012 Operator’s Manual6. Press and release the POWER ENTER button to display the single calibration menu. The %LEL sen

GX-2012 Operator’s Manual Using Maintenance Mode • 111LCD will indicate that the calibration has ended, then the single calibration menu displays.12.

4 • About this Manual GX-2012 Operator’s ManualAbout this ManualThe GX-2012 Operator’s Manual uses the following conventions for notes, cautions, and

112 • Using Maintenance Mode GX-2012 Operator’s Manualto perform a bump test. These instructions assume you are using a 4-gas cylinder and a %volume c

GX-2012 Operator’s Manual Using Maintenance Mode • 1138. A bump test may be performed on the standard 4 sensors or on the %volume combustible sensor.

114 • Using Maintenance Mode GX-2012 Operator’s Manual• To return to the main menu, press POWER ENTER. If one or more sensors fail the bump test, see

GX-2012 Operator’s Manual Using Maintenance Mode • 115• To return to the main menu, press POWER ENTER. • Disconnect the tubing from the probe.If any c

116 • Using Maintenance Mode GX-2012 Operator’s Manual• To return to the main menu, press POWER ENTER at any time. If any channel failed the calibrati

GX-2012 Operator’s Manual Using Maintenance Mode • 117during startup. From this screen, you can choose to continue accumulating TWA and PEAK readings

118 • Using Maintenance Mode GX-2012 Operator’s Manual1. Use the AIRS or (SHIFT)T buttons to display the LATCHING menu item.2. Press and release the P

GX-2012 Operator’s Manual Using Maintenance Mode • 119button to clear the alarm indications.1. Use the AIRS or (SHIFT)T buttons to display the ALM SLN

120 • Using Maintenance Mode GX-2012 Operator’s Manual2. Press and release the POWER ENTER button. The screen will indicate the current setting.3. Use

GX-2012 Operator’s Manual Using Maintenance Mode • 1211. Use the AIRS or (SHIFT)T buttons to display the ALARM--P menu item. Press and release the POW

GX-2012 Operator’s Manual Overview • 5Chapter 2: DescriptionOverviewThis chapter describes the GX-2012 instrument and accessories.Instrument Descripti

122 • Using Maintenance Mode GX-2012 Operator’s Manual7. Press POWER ENTER to save the setting. The unit will direct you back to the Alarm Points Scre

GX-2012 Operator’s Manual Using Maintenance Mode • 12311. Adjust the values for the warning and alarm settings using the procedure in step 4 through s

124 • Using Maintenance Mode GX-2012 Operator’s Manual14. Use the AIRS or (SHIFT)T buttons to select the H2S channel and press POWER ENTER. Adjust the

GX-2012 Operator’s Manual Using Maintenance Mode • 125set to OFF, the Clear Data Logger Screen does not appear in Display Mode and any logged data can

126 • Using Maintenance Mode GX-2012 Operator’s Manual2. Press and release the POWER ENTER button. The screen will indicate the current setting.3. Use

GX-2012 Operator’s Manual Using Maintenance Mode • 1272. Press and release the POWER ENTER button. The screen will indicate the current setting.3. Use

128 • Using Maintenance Mode GX-2012 Operator’s Manual3. To update the GAS TIME setting, with the cursor next to the gas time and with GAS TIME displa

GX-2012 Operator’s Manual Using Maintenance Mode • 1297. To exit the BUMP--SET menu, use the (SHIFT)T button to scroll to ESCAPE and press and release

130 • Using Maintenance Mode GX-2012 Operator’s Manual3. Press and release the POWER ENTER button to save the setting and return to the main menu.Upda

GX-2012 Operator’s Manual Using Maintenance Mode • 1313. Press and release the POWER ENTER button to save the setting and return to the main menu.Upda

6 • Instrument Description GX-2012 Operator’s ManualFigure 2: Components of the GX-2012, BottomCaseThe Model GX-2012’s sturdy, high-impact plastic cas

132 • Using Maintenance Mode GX-2012 Operator’s Manual1. Use the AIRS or (SHIFT)T buttons to display the C--CHECK menu item. Press and release the POW

GX-2012 Operator’s Manual Using Maintenance Mode • 133Updating the Bump Test Reminder SettingWith BP RMNDR set to ON, the GX-2012 will give an indicat

134 • Using Maintenance Mode GX-2012 Operator’s ManualNOTE: If the BUMP DSP menu item is set to OFF, this menu item does not appear.1. Use the AIRS or

GX-2012 Operator’s Manual Using Maintenance Mode • 135Turning the ID Display Function On or OffWith ID DISP set to ON, the User ID Screen and Station

136 • Using Maintenance Mode GX-2012 Operator’s Manualreturn to the main menu.Updating the Autozero FunctionWith AUTO.ZERO turned ON, the GX-2012 will

GX-2012 Operator’s Manual Using Maintenance Mode • 137Updating the Leak Check/Bar Hole Mode SettingWith L./B. MODE turned OFF (factory setting), the G

138 • Using Maintenance Mode GX-2012 Operator’s ManualUpdating the Bar Hole Sampling TimeThe Bar Hole Sampling Time is the amount of time that the GX-

GX-2012 Operator’s Manual Using Maintenance Mode • 1391. Use the AIRS or (SHIFT)T buttons to display the PORTUGAL menu item.2. Press and release the P

140 • Using Maintenance Mode GX-2012 Operator’s Manual1. Use the AIRS or (SHIFT)T buttons to display the CO DISP menu item.2. Press and release the PO

GX-2012 Operator’s Manual Using Maintenance Mode • 141Turning the Password Function On or OffWith PASSWORD set to ON, the GX-2012 prompts you for a pa

GX-2012 Operator’s Manual Instrument Description • 7Combustible Gas Sensors% LEL Sensor (NC-6264A)The % LEL sensor detects combustible gas in the % LE

142 • Using Maintenance Mode GX-2012 Operator’s Manualpassword is saved and you return to the main menu.Performing a Low Flow Setpoint AdjustmentIf yo

GX-2012 Operator’s Manual Overview • 143Chapter 7: GX-2012 MaintenanceOverviewThis chapter describes troubleshooting procedures for the GX-2012. It al

144 • Troubleshooting GX-2012 Operator’s Manual• Display indicates “FAIL SYSTEM” during startup along with an error code.• A circuit fault has occurre

GX-2012 Operator’s Manual Troubleshooting • 145• The unit indicates flow failure and does not recover when RESET SILENCE is pressed and released.• The

146 • Replacing or Recharging the Batteries GX-2012 Operator’s ManualReplacing or Recharging the BatteriesWARNING: To prevent ignition of a hazardous

GX-2012 Operator’s Manual Replacing or Recharging the Batteries • 147Replacing the Lithium Ion Battery PackNOTE: Use Procell PC 1500 alkaline batterie

148 • Replacing or Recharging the Batteries GX-2012 Operator’s ManualRecharging the Lithium Ion Battery Pack in the InstrumentCAUTION: To be used only

GX-2012 Operator’s Manual Replacing or Recharging the Batteries • 149If using a DC powered charging station, plug the 12 VDC vehicle plug adapter into

150 • Replacing or Recharging the Batteries GX-2012 Operator’s ManualFigure 22: Putting the GX-2012 into the Charging Station5. When a full charge has

GX-2012 Operator’s Manual Replacing or Recharging the Batteries • 1513. If using an AC powered charging station, plug the AC adapter into an electrica

8 • Instrument Description GX-2012 Operator’s ManualDummy SensorsAny unit that has less than 5 sensors will have a dummy sensor installed in one or mo

152 • Replacing or Recharging the Batteries GX-2012 Operator’s ManualIf using a DC powered charging station, plug the 12 VDC vehicle plug adapter into

GX-2012 Operator’s Manual Replacing the LEL and CO Filters • 1534. Insert the battery pack into the charging station as shown in Figure 25 below so th

154 • Replacing a Sensor GX-2012 Operator’s Manual6. To replace the CO filter, pull the old one out of its recess in the sensor gasket if it did not a

GX-2012 Operator’s Manual Replacing a Sensor • 155flow chamber.4. Grab the exhaust tube and pull it gently away from the unit to slide the flow chambe

156 • Replacing the Hydrophobic Disk Filter, GX-2012 Operator’s Manual8. If your instrument has a factory installed dummy sensor, ensure that it is st

GX-2012 Operator’s Manual Cotton Filter, and Wire Mesh Disk • 1575. The hydrophobic disk filters and wire mesh disk are located in the case and are re

158 • Parts List GX-2012 Operator’s ManualParts ListTable 7 lists part numbers for the GX-2012’s replacement parts and accessories.Table 9: Parts List

GX-2012 Operator’s Manual Parts List • 15980-0101RK 8 meter hose with floating head80-0140RK 32” telescoping probe with dust filter80-0144RK 7’ telesc

160 • Parts List GX-2012 Operator’s Manual81-1054RK Regulator, demand-flow type (for 34 liter aluminum and 58- and 103-liter calibration cylinders)81-

GX-2012 Operator’s Manual Overview • 161Appendix A: Calibrating and Bump Testing with a Sample BagOverviewThe GX-2012 can be calibrated and bump teste

GX-2012 Operator’s Manual Instrument Description • 9Control ButtonsFive control buttons are located below the LCD. They are arranged around a central

162 • Preparing for Calibration or Bump Testing GX-2012 Operator’s ManualTo calibrate or bump test the GX-2012, you will need:• Known calibrating samp

GX-2012 Operator’s Manual Preparing for Calibration or Bump Testing • 1634. Continue to hold the AIRS button until the display prompts you to release

164 • Calibrating the GX-2012 GX-2012 Operator’s ManualCalibrating the GX-2012From Measuring Mode, enter Calibration Mode by pressing and holding the

GX-2012 Operator’s Manual Calibrating the GX-2012 • 165The GX-2012’s calibration menu includes two methods of calibration:auto calibration and single

166 • Calibrating the GX-2012 GX-2012 Operator’s Manual3. Use the AIRS or (SHIFT)T button to alternate between the 4-gas and the % volume combustible

GX-2012 Operator’s Manual Calibrating the GX-2012 • 167sensors. 11. After the last calibration gas value is set, use the AIRS button to scroll to ESCA

168 • Calibrating the GX-2012 GX-2012 Operator’s ManualIf any of the sensors cannot calibrate to the proper value, FAIL displays along the bottom of t

GX-2012 Operator’s Manual Calibrating the GX-2012 • 169combustible gas channel, your calibration cylinder should have a combustible gas concentration

170 • Calibrating the GX-2012 GX-2012 Operator’s Manual3. Use the AIRS or (SHIFT)T button to display the sensor you want to calibrate (in this example

GX-2012 Operator’s Manual Bump Testing • 1718. Disconnect the tubing from the GX-2012’s probe.9. Repeat steps 3 through 8 for any other sensors you wa

10 • Instrument Description GX-2012 Operator’s ManualBuzzerOne solid-state electronic buzzer is located inside the case. Holes on the top front of the

172 • Bump Testing GX-2012 Operator’s ManualFrom Measuring Mode, enter Calibration Mode by pressing and holding the (SHIFT)T button, then pressing the

GX-2012 Operator’s Manual Bump Testing • 173gas flow, clamp down the hose clamp and remove the regulator or dispensing valve from the cylinder.6. Disc

174 • Bump Testing GX-2012 Operator’s Manual13. Open the hose clamp and connect the tubing from the filled gas bag to the rigid tube on the probe and

GX-2012 Operator’s Manual Bump Testing • 17515. When AUTO CAL in the BUMP--SET menu item in Maintenance Mode is set to ON:If all channels pass the bum

176 • Bump Testing GX-2012 Operator’s Manualcalibration initiated because of a failed bump test is the difference between the bump test gas time and t

GX-2012 Operator’s Manual Parts List • 177ENTER at any time. If any channel failed the calibration, the buzzer will sound a double pulsing tone until

GX-2012 Operator’s Manual Instrument Description • 11PumpA diaphragm pump inside the GX-2012 draws the sample to the sensors. It can draw sample from

GX-2012 Operator’s ManualWARNINGRead and understand this instruction manual before operating instrument. Improper use of the gas monitor could result

12 • Standard Accessories GX-2012 Operator’s ManualStandard AccessoriesThe standard accessories include the tapered rubber nozzle, belt clip, sample h

GX-2012 Operator’s Manual Optional Accessories • 13Optional AccessoriesSeveral optional accessories are available for the GX-2012. They include a rech

14 • Optional Accessories GX-2012 Operator’s ManualAC Powered Charging StationThe standard AC powered charging station consists of an instrument charg

GX-2012 Operator’s Manual Optional Accessories • 15DC Powered Charging StationAn optional DC powered charging station is available with a vehicle plug

16 • Optional Accessories GX-2012 Operator’s ManualOptional ProbesVarious optional probes designed for specific applications are available for the GX-

GX-2012 Operator’s Manual Optional Accessories • 17• 32 inch telescoping probe with dust filterFigure 10: 32 Inch Telescoping Probe with Dust FilterTh

18 • Optional Accessories GX-2012 Operator’s ManualPurge Tee FittingThe 17-4430RK-01 purge fitting is used to detect gas levels in a pressurized gas s

GX-2012 Operator’s Manual Overview • 19Chapter 3: Using the GX-2012 in Normal ModeOverviewThis chapter explains how to operate the GX-2012 in Normal M

20 • Start Up, Normal Mode GX-2012 Operator’s Manual4. If LNCH BRK is turned on, the Resume Datalog Screen displays.• Press and release the POWER ENTE

GX-2012 Operator’s Manual Start Up, Normal Mode • 21• If the unit is due for calibration and CL EXPRD is set to NOT USE, then the following screen dis

Warranty GX-2012 Operator’s ManualWarrantyRKI Instruments, Inc. warrants the GX-2012 sold by us to be free from defects in materials, workmanship, and

22 • Start Up, Normal Mode GX-2012 Operator’s Manual• If the unit is due for a bump test and BP EXPRD is set to NOT USE, then the following screen dis

GX-2012 Operator’s Manual Start Up, Normal Mode • 237. If ID DISP is turned on (see page 135), the User ID Screen displays for a few seconds and then

24 • Start Up, Normal Mode GX-2012 Operator’s Manual9. The Battery Level and Alarm Pattern Screen appears next. AL -- H indicates latching (hold) alar

GX-2012 Operator’s Manual Start Up, Normal Mode • 2511. If the GX-2012 experiences a sensor failure during start up, a screen indicating which sensor

26 • Start Up, Normal Mode GX-2012 Operator’s ManualDISP, CL RMNDR, and BP RMNDR. If any of these items is turned off, then the corresponding screen w

GX-2012 Operator’s Manual Start Up, Normal Mode • 27NOTE: If the CO DISP parameter in Maintenance Mode is set to On, the CO channel will appear in Lea

28 • Measuring Mode, Normal Operation GX-2012 Operator’s Manualchannels. Once the countdown has finished, start up is complete and the unit is ready f

GX-2012 Operator’s Manual Measuring Mode, Normal Operation • 29NOTE: Response time increases with the length of the sample hose. Long sample hoses wil

30 • Measuring Mode, Normal Operation GX-2012 Operator’s Manualpage 19.2. Connect the purge tee fitting to the GX-2012’s quick connect inlet fitting.3

GX-2012 Operator’s Manual Measuring Mode, Normal Operation • 31NOTE: The GX-2012 can be calibrated either with or without the dilution fitting in plac

GX-2012 Operator’s Manual Table of ContentsTable of ContentsChapter 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

32 • Measuring Mode, Normal Operation GX-2012 Operator’s ManualApplications with High Levels of Combustible GasThe GX-2012 provides the % LEL sensor w

GX-2012 Operator’s Manual Measuring Mode, Normal Operation • 33you are detecting pentane and the display reads 10% LEL on the combustible gas channel,

34 • Measuring Mode, Normal Operation GX-2012 Operator’s Manual The first screen displays what snap log ID will be given to this particular set of dat

GX-2012 Operator’s Manual Measuring Mode, Normal Operation • 35day, and time of the snap log, and that you should press the POWER ENTER button to save

36 • Measuring Mode, Alarms GX-2012 Operator’s ManualMeasuring Mode, AlarmsThis section covers alarm indications in Measuring Mode. It also tells you

GX-2012 Operator’s Manual Measuring Mode, Alarms • 37High AlarmConcentration of gas rises above the Alarm level, or rises above the High Alarm level f

38 • Measuring Mode, Alarms GX-2012 Operator’s ManualResetting and Silencing AlarmsYou can set the GX-2012’s gas alarms as latching or self-resetting

GX-2012 Operator’s Manual Measuring Mode, Alarms • 39continues to display the current alarm level.The gas reading must fall below (or rise above for a

40 • Measuring Mode, Alarms GX-2012 Operator’s Manual5. If the over range condition continues, you may need to replace the sensor that has triggered t

GX-2012 Operator’s Manual Measuring Mode, Alarms • 412. Attempt to change the date using the DATE menu time in Maintenance Mode. See “Updating the Dat

Table of Contents GX-2012 Operator’s ManualChapter 3: Using the GX-2012 in Normal Mode . . . . . . . . . . . . . . . 19Overview . . . . . . . . . . .

42 • Inert Mode GX-2012 Operator’s ManualInert ModeInert Mode is used to measure the combustible gas and/or oxygen level in a purged environment. In o

GX-2012 Operator’s Manual Display Mode • 432. Once the warm up sequence is complete, the Normal Operation Screen will display and INERT will appear al

44 • Display Mode GX-2012 Operator’s ManualNOTE: Each screen displays for 20 seconds. If you do not press the DISPLAY (ADJ) button to scroll to the ne

GX-2012 Operator’s Manual Display Mode • 45The lunch break feature enables the GX-2012 to remember peak readings when it is turned off so it can conti

46 • Display Mode GX-2012 Operator’s ManualAlarm Points ScreenThe Alarm Points Screen allows you to view each channel’s alarm settings for full scale,

GX-2012 Operator’s Manual Display Mode • 47Pressing and releasing POWER ENTER while in a settings screen will cause the instrument to simulate that co

48 • Display Mode GX-2012 Operator’s ManualDate/Time ScreenThe date/time screen displays the current date and time with the order being year, month, d

GX-2012 Operator’s Manual Display Mode • 49Clear Data Logger ScreensCAUTION: Once you clear the data logger, you cannot retrieve any data previously s

50 • Display Mode GX-2012 Operator’s Manual3. The GX-2012 displays 4 dashes and as the GX-2012 clears the data, the dashes disappear. When the last da

GX-2012 Operator’s Manual Display Mode • 51User ID ScreenThis screen displays only if ID DISP in the Maintenance Mode menu is set to ON (see “Turning

GX-2012 Operator’s Manual Table of ContentsPreparing for Calibration or Bump Test . . . . . . . . . . . . . . . . . . . . . . 58Calibrating the GX-201

52 • Display Mode GX-2012 Operator’s Manual2. Use the AIRS and (SHIFT)T buttons to scroll through the 128 possible user IDs.3. Press the POWER ENTER b

GX-2012 Operator’s Manual Display Mode • 53To change a station:1. After entering Display Mode and proceeding to the Station ID screen, press and hold

54 • Display Mode GX-2012 Operator’s Manual3. If snap logs have been performed, the following screen will appear.This screen indicates the year, month

GX-2012 Operator’s Manual Display Mode • 55Peak Bar Select ScreenThe Peak Bar Select Screen allows you to turn the peak bar on or off. If the function

56 • Data Logging GX-2012 Operator’s ManualData LoggingNOTE: The GX-2012 logs data in both Normal Mode and Bar Hole Mode.The GX-2012 features the abil

GX-2012 Operator’s Manual Calibration Mode • 57Calibration ModeCalibration Mode allows you to calibrate the GX-2012’s sensor response and to bump test

58 • Calibration Mode GX-2012 Operator’s ManualCAUTION: If you are using a calibration kit that includes a gas bag and a fixed flow regulator or dispe

GX-2012 Operator’s Manual Calibration Mode • 59Calibrating the GX-2012From Measuring Mode, enter Calibration Mode by pressing and holding the (SHIFT)T

60 • Calibration Mode GX-2012 Operator’s Manualdesigned for use with the RKI 4-gas calibration cylinder and is the quickest and easiest method to cali

GX-2012 Operator’s Manual Calibration Mode • 613. Use the AIRS or (SHIFT)T button to alternate between the 4-gas and the % volume combustible gas cali

Table of Contents GX-2012 Operator’s ManualUpdating the Alarm Latching Settings . . . . . . . . . . . . . . . . . . . . . . 117Updating the Alarm Sil

62 • Calibration Mode GX-2012 Operator’s Manualsensors.11. After the last calibration gas value is set, use the AIRS button to scroll to ESCAPE and pr

GX-2012 Operator’s Manual Calibration Mode • 63If any of the sensors cannot calibrate to the proper value, FAIL displays along the bottom of the scree

64 • Calibration Mode GX-2012 Operator’s Manualof the full scale value of the target gas. For example, if you are calibrating the combustible gas chan

GX-2012 Operator’s Manual Calibration Mode • 653. Use the AIRS or (SHIFT)T button to display the sensor you want to calibrate (in this example the com

66 • Calibration Mode GX-2012 Operator’s Manual8. Disconnect the tubing from the probe.9. Repeat steps 3 through 8 for any other sensors you want to c

GX-2012 Operator’s Manual Calibration Mode • 67From Measuring Mode, enter Calibration Mode by pressing and holding the (SHIFT)T button, then pressing

68 • Calibration Mode GX-2012 Operator’s Manual5. Press and release the POWER ENTER button to display the bump test gas values.6. Use the AIRS or (SHI

GX-2012 Operator’s Manual Calibration Mode • 6910. When AUTO CAL in the BUMP--SET menu item in Maintenance Mode is set to OFF:• The instrument will in

70 • Calibration Mode GX-2012 Operator’s Manual11. When AUTO CAL in the BUMP--SET menu item in Maintenance Mode is set to ON:If all channels pass the

GX-2012 Operator’s Manual Calibration Mode • 71calibration initiated because of a failed bump test is the difference between the bump test gas time an

GX-2012 Operator’s Manual Table of ContentsRecharging the Lithium Ion Battery Pack Out of the Instrument . . 150Replacing the LEL and CO Filters. . .

72 • Calibration Mode GX-2012 Operator’s Manual• To return to the BUMP screen in Calibration Mode, press POWER ENTER at any time. If any channel faile

GX-2012 Operator’s Manual Overview • 73Chapter 4: Using the GX-2012 in Bar Hole ModeOverviewThis chapter explains how to operate the GX-2012 in Bar Ho

74 • Start Up, Bar Hole Mode GX-2012 Operator’s Manual3. Press and briefly hold down the POWER ENTER button. The Normal Mode Select Screen displays. 4

GX-2012 Operator’s Manual Start Up, Bar Hole Mode • 75• If the unit is due for calibration and CL EXPRD is set to NOT USE, then the following screen d

76 • Start Up, Bar Hole Mode GX-2012 Operator’s Manual• If the unit is due for a bump test and BP EXPRD is set to NOT USE, then the following screen d

GX-2012 Operator’s Manual Start Up, Bar Hole Mode • 778. If ID DISP is turned on (see page 135), the User ID Screen displays for a few seconds and the

78 • Start Up, Bar Hole Mode GX-2012 Operator’s ManualAL -- H indicates latching (hold) alarms and AL -- A indicates self-resetting (automatic) alarms

GX-2012 Operator’s Manual Start Up, Bar Hole Mode • 79If the CO or H2S sensor is installed and fails, press and release the RESET SILENCE button to ac

80 • Bar Hole Testing GX-2012 Operator’s ManualBar Hole TestingIn Bar Hole Mode, the you can initiate sampling for a fixed time period to monitor for

GX-2012 Operator’s Manual Bar Hole Testing • 81Use the AIRS and (SHIFT)T buttons to scroll to the desired station ID and press and release POWER ENTER

GX-2012 Operator’s Manual Overview • 1Chapter 1: IntroductionOverviewThis chapter briefly describes the GX-2012. This chapter also describes the GX-20

82 • Bar Hole Testing GX-2012 Operator’s Manual6. At the end of the sample period, the pump will shut off and the buzzer will sound, then the peak met

GX-2012 Operator’s Manual Bar Hole Testing • 838. If other bar holes will be tested, proceed to the next bar hole and repeat steps 4 - 7.9. To cancel

84 • Overview GX-2012 Operator’s ManualChapter 5: Using the GX-2012 in Leak Check ModeOverviewThis chapter explains how to operate the GX-2012 in Leak

GX-2012 Operator’s Manual Start Up, Leak Check Mode • 85NOTE: In order for LEAK CHECK MODE to appear as a selection in the Mode Select Screen in Step

86 • Start Up, Leak Check Mode GX-2012 Operator’s ManualNOTE: If no button is pressed for 20 seconds, the unit will proceed into whichever mode is dis

GX-2012 Operator’s Manual Start Up, Leak Check Mode • 87• If calibration is not due or CL EXPRD is set to NO EFFECT, then the following screen appears

88 • Start Up, Leak Check Mode GX-2012 Operator’s Manual• If a bump test is not due or BP EXPRD is set to NO EFFECT, then the following screen appears

GX-2012 Operator’s Manual Start Up, Leak Check Mode • 8910.The Battery Level and Alarm Pattern Screen appears next. AL -- H indicates latching (hold)

90 • Start Up, Leak Check Mode GX-2012 Operator’s Manualunit will enter Leak Check Mode.13.The GX-2012 is now operating in Leak Check Mode. The combus

GX-2012 Operator’s Manual Leak Testing • 91Leak TestingIn Leak Check Mode, the GX-2012 only displays combustible gas readings. The increment of the re