RKI Instruments GX-2003 Betreibershandbuch PDF herunterladen (Seite 42)

35 • Calibration Mode GX-2003 Operator’s Manual

3. If necessary, use the ▲AIR and (SHIFT)▼ buttons to set the correct

combustible gas value.

4. Press and release the POWER ENTER button to enter the new

setting. The OXY calibration value begins to flash.

5. Repeat steps 3 and 4 to set the correct values for the remaining

channels. After the last channel is set, you return to the calibration

values screen and the values are no longer flashing.

NOTE: The RKI Four Gas Cylinder typically contains 12% O

volume. Be sure to set the “OXY” reading to agree with the

concentration listed on the cylinder’s label, not zero.

6. With the calibration values screen displayed, press the

POWER/ENTER button. CAL. along the left side of the LCD

begins to flash and the current gas readings are displayed.

7. Connect the tubing from the demand flow regulator to the rigid

tube on the probe. Allow the gas to flow for one minute.

8. Press and release the POWER/ENTER button to set the calibration

to the programmed values.

If all channels passed calibration, AUTO CALIBRATION PASS

displays, then the calibration menu displays.

If any of the sensors cannot calibrate to the proper value, FAIL

PUSH AIR KEY displays and the GX-2003 lists the sensor(s) that

failed to calibrate. In the example below, the OXY and H

channels failed calibration. The other sensors calibrated normally.

The buzzer, vibrator, and alarm lights activate. Press and hold the

▲AIR button for a few seconds to reset the alarm and return to the

calibration menu. Attempt to calibrate again. If the failure

continues, investigate the cause. See “Troubleshooting” on

page 68.

C CH4 0%LEL

A OXY 20.9VOL%

L H2S 0.0ppm

. CO 0ppm

21:09

FAIL

PUSH AIR KEY

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21:09

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RKI Instruments GX-2003 Betreibershandbuch Seite 42