Inject Cal Gas - Ametek Thermox 2000 ATEX Series User Manual

Inject Cal Gas

This menu option allows you to manually adjust the pressure and flow
of your calibration gases (pressure of calibration gas cylinders and flow
into sensor) by cycling through the solenoid 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. Select the Inject Cal Gas menu option from the Calibrate key menu.
The following message will then appear on your display, indicating that
the RCU has introduced the span gas to the sensor:
You will be prompted to press the Enter key once 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 the Enter key.
The following message will then 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, proceed to Step 6 below.
Otherwise, continue with the following instructions.
If you have the combustibles option, you will be prompted to press the
Enter key once you have set the pressure and flow for the zero gas:
This menu option requires that an auto cal card and RCU are
installed.
Span gas is flowing
ENTER for next Gas.
CANCEL to quit.
Zero gas is flowing
Calibration | 5-19