Inject Cal Gas - Ametek Thermox WDG Insitu User Manual

Inject Cal Gas

Manually adjust the pressure and flow of your calibration gases (pressure of
calibration gas cylinders and flow into sensor) by cycling through the sole-
noid valves on the RCU. No calibration or verification data is collected while
in this menu option. See the "Mechanical Installation" section in Chapter 2 for
recommended calibration gas pressure and flow requirements.

NOTE
1. Connect the span and zero gas cylinders to the RCU.
2. From the Calibrate key menu, select the Inject Cal Gas menu option.
The following message will appear on your display, indicating that the
RCU has introduced the span gas to the sensor:
You will be prompted to press Enter when you have manually set the
pressure and flow for the span gas:
3. When you have adjusted the pressure and flow for the span gas to the
desired levels, press Enter.
The following message will appear on your display, indicating that the
RCU has now switched the solenoid valves and has introduced the zero
gas to the sensor:
4. Adjust the pressure and flow for the zero gas to the desired levels. If
you don't have the combustibles option, press the Cancel key to end
the cycle.
Then, if you specified a recovery time, the system will display the recov-
ery time remaining:
The system returns to monitoring process readings.
This menu option requires that an auto cal card and RCU are in-
stalled.
Span gas is flowing
ENTER for next Gas.
CANCEL to quit.
Zero gas is flowing
CANCEL to quit
Recovery xx:xx
Calibration | 5-13