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Model GP-01 Operator’s Manual

Calibration • 23

You will need a gas cylinder with an appropriate concentration of the 
target gas. The Model GP-01’s calibration value must match the gas 
concentration in the calibration cylinder, otherwise the calibration will 
not be accurate.

CAUTION: Do not use a gas mix that includes H

2

S to calibrate the GP-01.

To carry out the calibration, you will need a fixed-flow regulator with a 
flow rate of 0.5 LPM (liters per minute), non-absorbent tubing, and the 
calibration adapter that will fit over the Model GP-01’s sensor.

Assembling the Calibration Kit

WARNING: Calibrate the Model GP-01 in a non-hazardous 

environment.

1. Attach the calibration adapter to the top of the Model GP-01. The 

calibration adapter opens up like a clothes pin. It fits over the Model GP-
01’s gas sensor port on top of the sensor retainer and secures itself 
there by clamping to the front and back of the Model GP-01.

2. Attach the calibration tubing to the calibration adapter, and then attach 

the opposite end of the tubing to the regulator.

NOTE: Do not attach the regulator to the gas cylinder at this time. 

Setting the Span Readings for the Target Gas

1. Make sure you have set the fresh air reading and have set up the 

calibration kit as described in the procedures above.

2. Make sure the Model GP-01 is off.

3. Press and hold the AIR button, and then press and hold the POWER/

MODE button. Release both buttons when you hear a “beep”. The unit 
is in Calibration Mode and the LCD displays “CAL” in the lower left and 
the battery level in the upper right. It also displays the gas concentration 
that the unit expects you to use, the calibration value, when setting the 
span.

4. If necessary, use the AIR button to adjust the calibration value to the 

desired setting. The calibration value must match the gas concentration 
in the calibration cylinder.

5. Press the POWER/MODE button to accept the calibration value. The 

current gas reading is displayed, and “CAL” will blink in the lower left 
corner of the LCD. The unit is now in Span Adjustment Mode.

Содержание GP-01

Страница 1: ...Model GP 01 Combustible Gas Monitor Operator s Manual Part Number 71 0083RK Revision C Released 1 17 05 RKI Instruments Inc 33248 Central Ave Union City CA 94587 Phone 800 754 5165 Fax 510 441 5650...

Страница 2: ...This warranty indicates 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 ou...

Страница 3: ...trol Buttons 11 Printed Circuit Boards 11 Alarm Lights 12 Buzzer 12 Vibrator 12 Batteries 12 Start Up 13 Start up Procedure 13 Performing a Fresh Air Adjustment 13 Turning Off the Model GP 01 14 Opera...

Страница 4: ...eplacing the Sensor Filters 30 Parts List 32 WARNING Understand this manual before operating the Model GP 01 Substitution of components may impair intrinsic safety To prevent ignition of a hazardous a...

Страница 5: ...en small enough to be placed conveniently in a pocket The Model GP 01 offers the following features Compact design Fast accurate response with digital liquid crystal display LCD Visual audible and vib...

Страница 6: ...ne Batteries Standard Duracell MN2400 or PC2400 Eveready Energizer E92 or EN92 2 4 Volt Ni cad Battery Pack 49 1603RK Optional Continuous Operating Time Alkaline Batteries 16 Hours Minimum at 25 C No...

Страница 7: ...se membrane retainer and filter disks sensor retainer sensor LCD control buttons printed circuit boards alarm lights buzzer vibrator and batteries LCD Control Buttons Alarm Lights Buzzer Opening Membr...

Страница 8: ...t is the Model GP 01 s buzzer which is located inside the unit To the right of the buzzer is the sensor The sensor is held in place by the sensor retainer the top of the case for the Model GP 01 and t...

Страница 9: ...of the two the H2S scrubber filter disk removes H2S from the air The larger one the sensor cover protects the sensor from dirt and moisture The H2S scrubber filter disks are not installed in the GP 01...

Страница 10: ...ombustible gas sensor require replacing refer to the Maintenance section for sensor replacement instructions The buzzer however is not field replaceable The sensor retainer has a single diffusion port...

Страница 11: ...the signal sent to them from the combustible gas sensor convert the signal to a meaningful measurement of gas concentration display the gas concentration on the LCD store peak gas readings and activa...

Страница 12: ...A vibrating motor vibrator is mounted inside the Model GP 01 The vibrator vibrates momentarily during the power up sequence and for gas alarms Batteries Two AAA size alkaline batteries standard or an...

Страница 13: ...splayed CAUTION If the unit gives a low battery warning or dead battery alarm change the alkaline batteries or charge the Ni cad battery pack before using the unit 3 The combustible sensor inside the...

Страница 14: ...nt in a fresh air environment Making this adjustment ensures accurate gas readings in the monitoring environment Refer to Start Up for more information In Measuring Mode the battery level and combusti...

Страница 15: ...matically and the backlight will turn off Combustible Gas Detection There are three issues that must be considered when checking for combustible gas The combustible gas sensor will respond to any comb...

Страница 16: ...stible gas may adversely affect the performance of the sensor The H2S scrubber disks are not normally installed in the GP 01 as shipped from the factory If H2S is present in the monitoring area the H2...

Страница 17: ...rm indication Table 4 Alarm Types and Indications Alarm Type LCD Indications Other Indications Low Alarm Concentration of gas rises above the low alarm point Gas reading flashes Back light turns on Pu...

Страница 18: ...POWER MODE button after the alarm condition has been cleared Responding to an Over Range Alarm WARNING An over range condition may indicate an extreme combustible gas concentration Confirm the gas co...

Страница 19: ...ly 30 minutes when using the Ni cad battery pack or 2 hours when using alkaline batteries The amount of time depends on how often the LCD backlight is used and how often the unit is responding to alar...

Страница 20: ...the POWER MODE button 3 As soon as segments appear on the display approximately one second release the AIR button When the unit beeps release the POWER MODE button to put the Model GP 01 into Alarm P...

Страница 21: ...g and releasing the AIR button in quick succession increases the high alarm point one number at a time Pressing and holding the AIR button increases the high alarm point by ten percentage points at a...

Страница 22: ...be calibrated before each use Typical calibration frequencies range from monthly to quarterly Make sure to develop a calibration schedule tailored to your application that takes the response test and...

Страница 23: ...1 2 Attach the calibration tubing to the calibration adapter and then attach the opposite end of the tubing to the regulator NOTE Do not attach the regulator to the gas cylinder at this time Setting t...

Страница 24: ...ill adjust the span based on the calibration value that was saved in step 5 above As soon as the unit makes the calibration adjustment it will begin its start up sequence and then it will enter Measur...

Страница 25: ...recommended actions for problems you may encounter with the Model GP 01 Table 6 Troubleshooting the Model GP 01 Symptoms Probable Causes Recommended Action The LCD is blank The unit may have been turn...

Страница 26: ...ample gas is not reaching the sensor because of a bad connection The calibration cylinder may be out of gas or is outdated The sensor may need replacement 1 Check all calibration tubing for leaks or f...

Страница 27: ...read the orientation label on the pack and insert the end that says To Gas Monitor first 6 Reinstall the battery cover To Recharge the Ni cad Battery Pack in the GP 01 CAUTION To be used with RKI Ni c...

Страница 28: ...ks The following instructions assume the battery pack is not in a GP 01 1 Plug the power cord of the optional Ni cad battery charging station into an AC outlet 2 Place the battery pack into the front...

Страница 29: ...outlet Replacing the Combustible Sensor WARNING Replace the sensor in a non hazardous environment 1 Verify that the Model GP 01 is off 2 Remove the sensor end protective rubber boot 3 With a small Ph...

Страница 30: ...e inserting it Forcing the sensor into its socket may damage the sensor or the socket 6 Reinstall the sensor retainer 7 Calibrate the new sensor as described in the calibration section of this manual...

Страница 31: ...insert one sensor cover in the recess over the two H2S scrubber disks The H2S scrubber filters are shown for reference in case they are installed They are not installed as shipped from the factory See...

Страница 32: ...mm pan head Phillips stainless steel for alligator and belt clip installation 13 0112RK Wrist strap 13 0114RK Alligator clip 13 0213RK Belt Clip 13 1115RK Captive battery cover screw 20 0316RK Rubber...

Страница 33: ...LPM for 17 34 liter steel cylinder 81 1004RK Regulator fixed flow 0 5 LPM for 103 liter steel cylinder 81 1104RK Calibration adapter for GP 01 GasWatch 2 81 GP01 LV Calibration kit methane LEL 34 lit...

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