Ametek Thermox 2000 ATEX Series User Manual page 124

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5-24 | Thermox Series 2000 WDG-HPII / HPIIC - ATEX
Set Cal Timers - Auto Cal On/Off
This menu option allows you to disable or re-enable the auto calibration
or auto-verification cycle. If you know your process will be down for an
extended period of time, you may want to temporarily disable the auto-
matic calibration or verification cycle. When the process is back on-line,
you can re-enable the auto calibration or verification cycle and retain all
your timer settings.
Select Auto Cal On/Off from the Set Cal Timers menu.
Select Auto Cal On/Off or select Auto Verify On/Off, depending on
whether you want to enable or disable the auto verify or auto cali-
brate cycle.
Select Disable Auto Cal (or Disable Auto Verify) to disable the auto
calibration or auto verification cycle. Select Enable Auto Cal (or
Enable Auto Verify) to enable the auto calibration or verification
cycle.
The system will confirm your enabling or disabling selection:
Auto Cal is ENABLED
Auto Cal is DISABLED
and will then exit this menu option.
Set Cal Timers - Cal Gas Duration
This menu option allows you to 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 se-
quence.
To find out how long it takes for your calibration gases to reach the
sensor and stabilize, select the Inject Cal Gas menu option and time the
gas stabilization period. Then use this time frame as your calibration gas
duration (we suggest that you also add a buffer to this time frame to be
certain that the gas has stabilized).
Select Cal Gas Duration from the Set Cal Timers menu option.
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