79 • Chapter 5: User Mode and Calibration GX-3R Pro Operator’s Manual
3. Install the calibration cup onto the GX-3R Pro. Use the label and imprinting to make sure that
the calibration cup gets installed in the correct orientation relative to the GX-3R Pro. Be sure
the calibration cup is pushed on all the way.
4. Use the tubing to connect the regulator to the inlet of the calibration cup.
Performing a Span Adjustment
1. While in User Mode, use AIR to place the cursor next to GAS CAL.
2. Press and release POWER MODE. The Gas Cal menu appears.
3. Use AIR to place the cursor next to AUTO CAL.
CO/H2S LEL O2 TOXIC
GX-3R Pro
AIR
POWER
MODE
Inlet
FRONT
Figure 10: Calibration Cup Installation
MAINTE 7:49
BUMP TEST
GAS CAL
CAL SETTING
USER MODE
MAINTE 7:49
CO2 ZERO CAL
AUTO CAL
ESCAPE
GAS CAL
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