Ametek Thermox WDG-1200 Insitu, User Manual

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4-28 | Thermox WDG-1200/1210 Insitu Probes
configuration
The five options available within the Configuration sub-menu are accessed by
pressing Enter from the Configuration display. Each option is set by pressing
Enter , selecting an appropriate value using the UP and DOWN keys, and press-
ing Enter again.
configuration sub-Menu
▼
You must set the five sub-menu options in order for the analyzer to perform
zero and span calibrations. These options configure the analyzer for span
and zero calibration gas concentrations, calibration intervals, timing of cali-
bration intervals, and time allowed for readings to settle during calibration.
span calibration Gas concentration
▼
The recommended span calibration gas concentration is 20.9% O
2
.
Zero calibration Gas concentration
▼
The recommended zero calibration gas concentration is 1% O
2
in nitrogen.
calibration time Interval
▼
Automatic zero and span calibrations can be set to occur at selected inter-
vals up to 9999 minutes.
NOTE

If set to 0, automatic calibration will not be performed.
time to next calibration
▼
The analyzer waits a specified time period before the first calibration is per-
formed. The time period specified begins once enter is pressed and the time
remaining is displayed.
settling time
▼
This is the time period required for the calibration gas to stabilize. It is
normally 120 seconds. If you are using long lengths of tubing, this time
period may need to be extended.