Ametek Thermox 2000 ATEX Series User Manual page 78

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You are then prompted to enter your system process pressure:
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4-10 | Thermox Series 2000 WDG-HPII / HPIIC - ATEX
Process Pressure
This menu option allows you to define your process pressure. It also
allows you to define whether your process is operating under a positive
or negative pressure. Setting this value corrects oxygen measurements
for the defined pressure.
Setting up process pressure
Select Process Pressure from the Setup key menu.
Select Positive Pressure or Negative Pressure.
Pressure = xxx.x kPa
Enter your process pressure (up to one decimal point is allowed - for
example, 1.5 kPa), then press the Enter key. If you select a positive
pressure, a plus sign (+) will appear before your value. If you select a
negative pressure, a negative sign (-) will appear before your value.
The process pressure you entered will now appear on the third display
line.
If the correct pressure has been entered into the system, press the
Enter key without entering a new value to exit this menu option. If
the pressure was incorrectly entered, you can reenter it at this point.
New Value?