RKI Instruments GP-01 - Manual (Page 25)

Model GP-01 Operator’s Manual Calibration • 20
If you want to cancel the calibration while in Span Adjustment Mode,
press and hold the AIR key for 3 seconds and the unit will not make any
span adjustments and begin its startup sequence.
NOTE: If one of the control buttons is not pressed within 10 minutes, the
unit will return to Measuring Mode automatically.
6. Attach the regulator to the gas cylinder. The fixed-flow regulator
automatically begins introducing the calibration sample to the sensor.
7. Let the gas flow for two minutes. After two minutes, press the POWER/
MODE button. The unit will adjust the span based on the calibration
value that was saved in step 5 above. As soon as the unit makes the
calibration adjustment, it will begin its start-up sequence, and then it will
enter Measuring Mode.
NOTE: If the GP-01 displays “FAIL” on the LCD after you press the
Power/MODE button, the sensor output may be too low or too
high or there may be a problem with the calibration gas or
calibration kit setup. Refer to the Troubleshooting section in
Maintenance to solve the problem.
8. Remove the regulator from the gas cylinder and the calibration adapter
from the unit.
NOTE: If the gas reading is high enough when the unit enters Measuring
Mode, an alarm condition will occur. If this occurs, reset the alarm
using the POWER/MODE button when the gas reading falls below
the alarm point.