93 • Chapter 5: User Mode and Calibration GX-3R Pro Operator’s Manual
2. Press and release POWER MODE. The BUMP PARAMETER menu appears.
GAS TIME
The GAS TIME is the amount of time that the instrument is exposed to gas during a bump test.
The available choices are 30 seconds (factory setting), 45 seconds, 60 seconds, and 90 seconds.
1. While in the BUMP SETTING\BUMP PARAMETER menu, use AIR to place the cursor
next to GAS TIME.
2. Press and release POWER MODE. The current setting flashes.
3. Use AIR to display the desired setting.
4. Press and release POWER MODE to save the setting and return to the BUMP PARAMETER
menu.
5. See “ESCAPE” on page 96 to return to the BUMP SETTING menu.
6. See “ESCAPE” on page 98 to return to User Mode.
TOLERANCE
TOLERANCE is the bump test tolerance value and is represented as a percentage of the
calibration gas concentration. It is the percentage that the bump test reading can differ from the
actual gas concentration. If the bump test reading differs more, the bump test will fail. The
available values are 10%, 20%, 30%, 40%, and 50% (factory setting).
1. While in the BUMP SETTING\BUMP PARAMETER menu, use AIR to place the cursor
next to TOLERANCE.
2. Press and release POWER MODE. The current setting flashes.
3. Use AIR to display the desired setting.
4. Press and release POWER MODE to save the setting and return to the BUMP PARAMETER
menu.
5. See “ESCAPE” on page 96 to return to the BUMP SETTING menu.
MAINTE 7:49
GAS TIME
TOLERANCE
CAL TIME
BUMP PARAMETER
MAINTE 7:49
GAS TIME
TOLERANCE
CAL TIME
BUMP PARAMETER
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