Ametek CEM/Humox, User Manual

Page: 85 / 136

Calibration
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5-9
You are then prompted to apply the O
2
zero gas to the calibration inlet port of
the sensor:
Inject Zero Gas
ENTER to Continue
CANCEL to Abort
6. Press the Enter key once you have applied this cal gas.
The zero gas display then appears:
D O2 xx.xx Set xx.xx
W O2 xx.xx Set xx.xx
Press ENTER to Zero
7. Press the Enter key once the zero gas reading on the left of the display has sta-
bilized. The reading on the far right of the first display line shows the setpoint
value you entered for the O
2
zero gas using the Cal Gas Values menu option.
This O
2
zero gas setpoint value should match the cal gas cylinder for the O
2
zero gas.
Then, if you specified a recovery time, the system will display the recovery
time remaining:
Recovery xx:xx
System Calibrating
The system then returns to monitoring process readings.
Be sure to reinsert the 1/4” tube cap on the calibration inlet port on
the sensor once you have completed the manual calibration. This
prevents air from getting into the sample gas line during normal
operations.
NOTE
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