Riken Keiki GX-2009 Operating Manual
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Riken Keiki GX-2009 Operating Manual

Pocketable multi-gas monitor
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PT0E-1242
PT0E-1246
Pocketable
Multi-Gas Monitor
GX-2009
Operating Manual

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Summary of Contents for Riken Keiki GX-2009

  • Page 1 PT0E-1242 PT0E-1246 Pocketable Multi-Gas Monitor GX-2009 Operating Manual...
  • Page 2 Safety info rmatio n The Personal Gas Monitor Model GX-2009 is a gas monitor designed to provide c ontinuous exposure monitoring of combustible gas, Oxygen (O ), toxic gas (CO, H etc.) in hazardous environments. Spec ific atio n fo r safety...

  • Page 3: Table Of Contents

    Setting the Date & Time Performing a Fresh Air Adjustment Performing a Span Adjustment in AUTO CAL Performing a Span Adjustment in ONE CAL Discharging the Batteries With the REFRESH Func tion Table o f Contents GX-2009 Operato r s Manual...
  • Page 4 Performing a Span Adjustment in ONE CAL Setting the Alarm Points Setting the Password Maintenanc e Troubleshooting Rec harging the GX-2009 s NiMH Batteries Replacing the GX-2009 s NiMH Batteries Replacing the Sc rubber Filters Replacing the Sensor Cover Replacing a Sensor Parts List WARNING : Understand manual before operating.

  • Page 5: Introduc Tio N

    Introduc tio n Using an advanc ed detec tion system c onsisting of four gas sensors, the GX-2009 personal four-gas monitor detec ts the presenc e of c ombustible gas, oxygen (O ), c arbon monoxide (CO), and hydrogen sulfide (H simultaneously.

  • Page 6: Spec Ific Atio Ns

    Spec ific atio ns Table 1 : Mo del GX-2009 Spec ific atio ns Target Gas Combustibles, Oxygen (O Hydrogen Carbon Methane (CH Sulfide Monoxide c alibration (CO) standard Range 0-100% LEL 0-40.0 vol% 0-100.0 ppm 0-500 ppm (Increment) (1% LEL) (0.1 vol% )
  • Page 7 Table 1 : Mo del GX-2009 Spec ific atio ns Case Rubber coated polycarbonate, RF Shielded, Dust and Water Resistant to IP-67 Required AC or DC Charging Station, AC Charging Station Available For From Ac c essories 1 to 5 Instruments...

  • Page 8: Desc Riptio N

    Desc riptio n This sec tion desc ribes the GX-2009 s components and the charging station. These components include the GX-2009 s c ase, alligator and belt clips, sensor retainer, sensor retainer gasket, sensor c over retainer, sc rubber filters, sensor c over, sensors, LCD, c ontrol buttons, printed circ uit boards, alarm LED arrays, buzzer, vibrator, batteries, and charging station.

  • Page 9: Case

    Three brass c harging contac ts that are used when the GX-2009 is placed in the c harging station are on the bac k of the case. Four sensor diffusion ports are located on the bottom of the c ase. The...

  • Page 10: Alligator & Belt Clips

    Teeth in the alligator clip s jaws prevent the unit from slipping off. The alligator clip c an be rotated to change how the instrument is oriented when worn. The belt c lip is used to easily c lip the GX-2009 on a belt. Senso r Retainer/Senso r Retainer Gasket/...

  • Page 11: Sensors

    If the sensor cover bec omes dirty, the response time and ac curacy of the GX-2009 will be affec ted. Replac e the sensor c over if it appears dirty. Senso rs...

  • Page 12: Lcd

    The gas reac ts in the sensor and produc es a c urrent proportional to the conc entration of the target gas. The c urrent is amplified by the GX-2009 s circuitry, c onverted to a measurement of gas c oncentration, and displayed on the LCD.

  • Page 13: Printed Circuit Boards

    Adjusts or changes displayed parameters Printed Circ uit Bo ards The primary func tion of the GX-2009 s printed c ircuit boards is to amplify the signal sent to them from the four gas sensors, c onvert the signal to a...

  • Page 14: Charging Station

    GX-2009 s NiMH Batteries on page 51 for instruc tions to recharge the batteries and Replacing the GX-2009 s NiMH Batteries on page 55 for instruc tions to replac e the batteries. Charging Statio n The GX-2009 s NiMH batteries are c harged with the GX-2009 Charging Station.
  • Page 15 Figure 5, and the five instrument station is shown in Figure 6. Figure 5 : GX-2009 Charging Statio n, Two Instrument Statio n Figure 6 : GX-2009 Charging Statio n, Five Instrument Statio n Desc ription...
  • Page 16 DC powered c harging station is only available as a single instrument c harging station. It uses the same charging base as the AC powered c harging station. Figure 7 : GX-2009 DC Po werd Charging Statio n GX-2009 Operato r s Manual Desc ription...

  • Page 17: Start Up

    Start Up This sec tion explains how to start up the GX-2009 and get it ready for operation. Start-up Pro c edure (About 20 seconds) 1. Press and briefly hold down the POWER MODE button. The bac klight will turn on and all the display segments will turn on. Release the button when you hear a beep.
  • Page 18 TWA alarm setpoint for the CO and H S c hannels 7. If the GX-2009 experienc es a sensor failure during start up, a sc reen indic ating which sensor failed displays. In the example below, the CO sensor has failed.

  • Page 19: Performing A Fresh Air Adjustment

    The gas reading for the failed sensor will be replaced by - - - . Replac e the failed sensor as soon as possible. 8. If Auto Zero Adjustment is set to On, then the GX-2009 will perform an automatic fresh air adjustment.

  • Page 20: Turning Off The Gx-2009

    1. Press and hold the POWER MODE button for about three sec onds to turn off the unit. The buzzer will sound and the LCD back light will turn 2. Release the button when the LCD is blank. The unit is off. GX-2009 Operato r s Manual Start Up...

  • Page 21: Operatio N

    Operatio n This sec tion desc ribes the operation of the GX-2009 in Measuring Mode. It explains how enter Display Mode to view the peak gas readings of the four target gasses, the STEL and TWA readings for H S and CO, and the full sc ale detection range value for eac h target gas.
  • Page 22 1. Make sure the GX-2009 is in the Measuring Mode Normal Operation sc reen. The GX-2009 must be in the Normal Operation Screen for you to ac cess Display Mode. 2. Press and release the POWER MODE button to enter Display Mode.

  • Page 23: Combustible Gas Detec Tion

    GX-2009 is c alibrated to methane. To use this table, multiply the display reading on the c ombustible gas c hannel by the fac tor in the appropriate row to obtain the ac tual gas c onc entration.

  • Page 24: Alarms

    Alarms This sec tion c overs alarm indic ations. It also desc ribes the two types of alarm logic, how to reset the GX-2009 after an alarm has occ urred, and how to respond to an alarm c ondition. NOTE : False alarms may be caused by radio frequency (RF) or electromagnetic (EMI) interference.
  • Page 25 Table 4 below summarizes the types of alarms produc ed by the GX-2009. Table 4 : Alarm Types and Indic atio ns Alarm Type Visual Indic atio ns Other Indic atio ns WARNING blinks to the Warning (low alarm) Buzzer sounds alternating...
  • Page 26 The gas alarm logic can be set to either latching or self resetting with the Configuration Program by setting the Alarm Pattern parameter. See the GX-2009 Configuration Program Operator s Manual for information on how to set the alarm logic. If Alarm Pattern is set to Latc h, the gas alarms are latc hing.
  • Page 27 RKI Instruments, Inc. for further instruc tions. Responding to Battery Alarms WARNING : The GX-2009 is not operational as a gas monitoring devic e during a dead battery alarm. Take the GX-2009 to a non- hazardous area and rec harge the battery as desc ribed in Rec harging the GX-2009 s NiMH Batteries on page 51 The GX-2009 is fully func tional during a low battery warning.

  • Page 28: Aspirator Adapter

    Figure 8 : GX-2009 Aspirato r Adapter GX-2009 Operato r s Manual...
  • Page 29 1. Turn on the GX-2009 as direc ted in Start Up on page 18. 2. Attac h the sample adapter plate to the sensor side of the instrument. 3. Sc rew the probe onto the threaded end of the 10 ft. hose.

  • Page 30: Calibratio N Mo De

    Discharge the batteries with the REFRESH func tion NOTE : You can set the GX-2009 to alert you during the startup sequence when calibration is due with the Configuration Program. See the GX-2009 Configuration Program Operator s Manual for information on setting the Cal.

  • Page 31: Using Calibration Mode

    AIR CAL, AUTO CAL, and ONE CAL, there are no gas alarm indic ations. 1. Take the GX-2009 to a non-hazardous area and turn it off if it is on. 2. Press and hold the AIR button, then press and hold the POWER MODE button.

  • Page 32: Setting The Date & Time

    Normal Mode. The AIR CAL menu item is available in Calibration Mode for c onvenienc e when performing a c omplete c alibration. WARNING : Calibrate the GX-2009 in a non-hazardous environment. 1. Find a fresh air environment, an environment of normal oxygen c ontent (20.9% ) that is free of toxic and c ombustible gasses.

  • Page 33: Performing A Span Adjustment In Auto Cal

    S, 50 ppm CO, and a balanc e of nitrogen. If the H S c hannel on your GX-2009 is ac tive, then use a 4-gas cylinder. If the H S channel on your GX-2009 is not ac tive, you may use a 3-gas cylinder to adjust the span.
  • Page 34 WARNING : Calibrate the GX-2009 in a non-hazardous environment. 1. Before performing a span adjustment, perform a fresh air adjustment as desc ribed in Performing a Fresh Air Adjustment on page 33. 2. At the AUTO CAL screen, press and release the POWER MODE button.
  • Page 35 3. Use the sample tubing to c onnec t the c alibration adapter plate to the regulator. Attac h the tubing to the adapter plate on the inlet side as shown below in Figure 9 Calibration Mo de GX-2009 Operato r s Manual...
  • Page 36 (c losed) and sc rew the calibration gas cylinder onto the regulator. 5. Push the adapter plate onto the GX-2009 s sensor fac e. Make sure the adapter plate is oriented as shown in Figure 10 below with the sensor names on the adapter plate matching up with the sensor names on the instrument.
  • Page 37 8. Allow the gas to flow for two minutes. 9. Press and release the POWER button. 10. The GX-2009 will attempt to make a span adjustment on all channels. 11. If the span adjustment is succ essful, the LCD will show the following sc reen before returning to the AUTO CAL sc reen.

  • Page 38: Performing A Span Adjustment In One Cal

    If the H2S channel on your GX-2009 is ac tive, then use a 4-gas cylinder so that you can calibrate all channels when necessary. If the H2S channel on your GX-2009 is not ac tive, you may use a 3-gas cylinder. The standard 3-gas cylinder c onsists of 50% LEL methane, 12% oxygen, 50 ppm CO, and a balanc e of nitrogen.
  • Page 39 (c losed) and sc rew the calibration gas cylinder onto the regulator. 6. Push the adapter plate onto the GX-2009 s sensor fac e. Make sure the adapter plate is oriented as shown in Figure 12 below with the sensor names on the adapter plate matching up with the sensor names on the instrument.
  • Page 40 10. Adjust the display gas reading to matc h the c alibration cylinder s target gas c onc entration. 11. Press and release the POWER MODE button. 12. The GX-2009 will make the span adjustment and will return to the channel selec tion screen. GX-2009 Operato r s Manual...

  • Page 41: Discharging The Batteries With The Refresh Func Tion

    The NiMH batteries used in the GX-2009 are resistant to this effec t, but if you notic e that the runtime is decreasing, run the REFRESH func tion two or three times and see if the runtime recovers.
  • Page 42 2. To run the REFRESH func tion, press and release the POWER MODE button. The following screen will be displayed and the fill inside the battery ic on will begin to flash. The GX-2009 is now discharging the batteries. If you do not want to run the REFRESH func tion, press and release the AIR button.
  • Page 43 AIR CAL, AUTO CAL, and ONE CAL, there are no gas alarm indic ations. 1. Take the GX-2009 to a non-hazardous area and turn it off if it is on. 2. Press and hold the AIR button, then press and hold the POWER MODE button.
  • Page 44 To switc h from increasing to dec reasing a value or decreasing to increasing a value, do the following: GX-2009 Operato r s Manual User Setup Mo de...
  • Page 45 AIR button to scroll through the menu items to the START item. 10. At the START sc reen, press and release the POWER MODE button. The GX-2009 will begin its start-up sequence. The User Setup Mode menu items are desc ribed below in the order in which they appear while moving through User Setup Mode.
  • Page 46 MODE button to selec t the channel for an alarm point adjustment. In the example below, the c ombustible c hannel has been selected and the Warning alarm point is displayed flashing. GX-2009 Operato r s Manual User Setup Mo de...
  • Page 47 You c an password protect entry into the User Setup Mode with the password feature. Entering the PASSWORD menu item allows you to turn this feature on or off and enter a password if you turn it on. User Setup Mo de GX-2009 Operato r s Manual...
  • Page 48 8. Repeat step number 5 through step number 7 until you have set all four of the digits. 9. When you save the last digit, the unit will return to the PASSWORD sc reen. GX-2009 Operato r s Manual User Setup Mo de...
  • Page 49 Maintenanc e This sec tion desc ribes troubleshooting proc edures for the GX-2009. It also describes how to recharge the GX-2009 s batteries as well as how to replace the unit s filters, sensor c over, and gas sensors. Tro ublesho o ting...
  • Page 50 Table 6 : Tro ublesho o ting the GX-2009 Sympto ms Pro bable Causes Rec o mmended Ac tio n The AUTO CAL calibration 1. Confirm that the AUTO FAIL displays during gas values may not span adjustment in AUTO...
  • Page 51 3. If using an AC powered c harging station, plug the AC adapter into an elec trical outlet. Figure 13 : Calibratio n Charging Statio n s AC Adapter Maintenanc e GX-2009 Operato r s Manual...
  • Page 52 If using a DC powered c harging station, plug the 12 VDC vehicle plug adapter into a vehicle s 12 VDC power socket. Figure 14 : Co nnec ting the Chaging Statio n s DC Adapter GX-2009 Operato r s Manual Maintenanc e...
  • Page 53 4. Put the GX-2009 in the charging base. Tabs at the top and bottom of the c harging base retain the instrument. Figure 15 : Putting the GX-2009 in the Charging Base 5. While the unit is being c harged, the red charging LED on the top face of the charger is on.
  • Page 54 Disc harging the Batteries with the REFRESH Func tion on page 42 to discharge your batteries before rec harging them. Replac ing the GX-2009 s NiMH Batteries WARNING : Replac e the batteries in a non-hazardous environment. Replace the battery set when it no longer holds a c harge.
  • Page 55 Figure 19 : NiMH Batteries 7. Remove eac h battery by gently pulling it away from the circ uit board. Each battery has an integral holder that provides elec trical connec tion to the circuit board. Maintenanc e GX-2009 Operato r s Manual...
  • Page 56 Tabs on the bottom of each battery matc h up with holes in the circ uit board. 9. Reinstall the rear c ase to the front case with the four c ase screws. GX-2009 Operato r s Manual Maintenanc e...
  • Page 57 1. Verify that the GX-2009 is off. 2. Unsc rew the two screws that secure the sensor retainer and sensor c over retainer to the GX-2009 and remove them. 3. Using a small flat blade sc rewdriver, gently pry eac h side of the sensor c over retainer away from the sensor retainer.
  • Page 58 8. Replace the two sc rews that you removed in step number 2 above to sec ure the sensor retainer and sensor c over retainer to the GX-2009. Replac ing the Senso r Cover WARNING : Replac e the sensor c over in a non-hazardous enviro nment.
  • Page 59 4. Remove the sensor from its socket. 5. Carefully insert the replac ement sensor in the soc ket. Figure 23 : Replac ing the Senso rs and Their Lo c atio ns in the GX-2009 Maintenanc e GX-2009 Operato r s Manual...
  • Page 60 7. Calibrate the new sensor as described in Performing a Span Adjustment in AUTO CAL on page 34 or Performing a Span Adjustment in ONE CAL on page 39. GX-2009 Operato r s Manual Maintenanc e...

  • Page 61: Parts List

    Parts List Table 7 lists replacement parts and ac cessories for the GX-2009. Table 7 : Part LIst Desc riptio n Parts Number Body case, front 4775 9753 70 Pakcing for front c ase 10pc s / set 4775 5504 20...
  • Page 62 4775 5510 20 Sc rew for sensor c over 100pc s / set 1012 0341 60 Wrist strap 0888 0605 90 Belt clip 4775 9769 00 Sensor c ap assy. (Consists of 4775 5509 91 GX-2009 Operato r s Manual Parts List...

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