RKI Instruments Gas Tracer - Manual (Page 147)

Gas Tracer Operator’s Manual Using Maintenance Mode • 139
8. Hold down the AIR▲ button. The unit will prompt you to continue
holding the AIR▲ button.
9. When the unit prompts you to release the AIR▲ button, release it.
The instrument will perform a fresh air adjustment on the ppm
sensor and return you to the AIR CAL menu item.
10.Disconnect the tubing from the probe.
11.Unscrew the demand flow regulator from the calibration cylinder.
Performing an AUTO CAL
This section describes how to calibrate the PPM combustible gas
sensor using auto calibration.
1. Install the demand flow regulator onto the calibration cylinder.
2. Connect the humidifier to the demand flow regulator.
3. Install the hose and probe to the Gas Tracer.
4. Use the AIR▲ or (SHIFT)▼ buttons to display the AUTO CAL
menu item and press and release the POWER ENTER button.
5. You will be prompted to choose between WET and DRY. Use the
WET setting.
NOTE: The DRY setting in AUTO CAL is for factory use only. Do not
perform a calibration in AUTO CAL using the DRY setting.
6. Use the AIR▲ or (SHIFT)▼ buttons to display the WET setting and
press and release the POWER ENTER button. The calibration value
screen will be displayed.
AIr
CAL
MAINTENANCE
HOLD AIR
1000
ppm
MAINTENANCE
CH
4
AUTO CAL