Ametek Thermox Series 2000 WDG-IV User Manual page 123

The system will confirm your enabling or disabling selection:
and will then exit this menu option.
Set Cal timers - Cal Gas Duration
Define how long the RCU should apply the span and zero calibration
gases to the sensor during an automatic calibration or verification. You can
also set a calibration gas duration time to 0 if you don't want to include it
in your automatic calibration sequence.
To find out how long it takes for your calibration gases to reach the sen-
sor and stabilize, select the Inject Cal Gas menu option and time the gas
stabilization period. Then use this time frame as your calibration gas dura-
tion (we suggest that you also add a buffer to this time frame to be certain
that the gas has stabilized).
1. From the Set Cal Timers menu option, select Cal Gas Duration.
You will be prompted to enter the new span gas duration time:
2. Enter the new span gas duration time, then press Enter. Mn equals
minutes and Sc = seconds. As you type the new span gas duration
time, it overwrites the Mn:Sc text. If you want to use the currently
displayed time, press Enter without entering a new value.
At this point, you will be prompted to enter the zero gas duration time:
3. Enter the new zero gas duration time, then press Enter. Mn equals
minutes and Sc = seconds. As you type the new zero gas duration
time, it overwrites the Mn:Sc text. If you want to use the currently
displayed time, press Enter without entering a new value.
Auto Cal is ENABLED
or
Auto Cal is DISABLED
O2 Span Time = xx:yy
Enter new time: Mn:Sc
O2 Zero Time = xx:yy
Enter new time: Mn:Sc
Calibration | 5-23