RKI Instruments GX-3R User Manual

GX-3R Operator’s Manual Chapter 5: User Mode and Calibration • 57
Option C from Flow Chart Option D from Flow Chart
• Calibration passed
• One cylinder assigned
• Auto Start After Successful Cal set to OFF (factory setting is
ON)
• Calibration failed
1. The instrument indicates that all channels passed the
calibration.
2. The instrument shows the current gas readings.
3. If MAX SPAN is set to ON (default is OFF, see pg.108), the
response reading’s maximum adjustment is displayed. A
maximum span of 100% LEL on the combustible channel
indicates that the reading could have been adjusted up to
100% LEL. If the maximum span value is close to the
calibration gas value, the sensor should be replaced soon.
The maximum adjustment is either twice the calibration value
or full scale, whichever is lower. The maximum adjustment
indicated for the oxygen channel is 25.0% volume.
4. If the combustible gas sensor is nearing the end of its useful
life, the reading conversions that can be made in Display
Mode’s LIST item become limited. Press and release
POWER MODE. See pg.35 for the limited conversion list.
Replace the combustible sensor as soon as possible.
5. Close the regulator.
6. Unscrew the regulator.
7. Remove the calibration cup.
8. The instrument continues to the START item in the AUTO
CAL menu.
9. Press and release POWER MODE to enter Measuring Mode.
1. The instrument indicates which channels failed the
calibration.
2. Close the regulator.
3. Unscrew the regulator.
4. Remove the calibration cup.
5. Press and release POWER MODE to return to the AUTO
CAL CYL X screen in the AUTO CAL menu.
6. See “Troubleshooting” on page 79.
AUTO CAL
M 7:49
PASS
AUTO CAL
M 7:49
50 25.2
CO ppm H2S ppm
51 11.9
CH4 %LEL O2 %
MAX SPAN
M 7:49
70 48.5
CO ppm H2S ppm
100 25.0
CH4 %LEL O2 %
LIMITED
M 7:49
GAS LIST
HC
AUTO CAL
M 7:49
50 25.2
CO ppm H2S ppm
FAIL 11.9
CH4 %LEL O2 %

RKI Instruments GX-3R Specifications

General

Brand	RKI Instruments
Model	GX-3R
Category	Measuring Instruments
Language	English