Manual Calibrate/Manual Verify - Ametek Thermox 2000 ATEX Series User Manual

Manual Calibrate/Manual Verify

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5-12 | Thermox Series 2000 WDG-HPII / HPIIC - ATEX
To perform a manual calibration or verification, follow these steps:
Enter the calibration gas values to match the span and zero calibra-
tion gases you intend to use to calibrate or verify your system (see
the "Cal Gas Values" section later in this chapter for help on how to
do this).
Select Initiate Cal or Initiate Verify from the Calibrate key menu,
depending on whether you want to perform a calibration or verifica-
tion.
Select Manual Calibrate or Manual Verify.
You are then prompted to apply the O
inlet port on the sensor (tubing must be free of oil and dirt):
Inject Span Gas
ENTER to Continue
CANCEL to Abort
Press the Enter key once you have applied this calibration gas. The
span display then appears (display line 2 will only appear if you have
the combustibles option):
O2 xx.x % Set xx.x %
Cmb y
Press ENTER to Span
Press the Enter key once the O
display line stabilizes. The reading on the far right of the first display
line shows the setpoint value you entered using the Cal Gas Values
menu option. This setpoint value should match the cal gas cylinder
for the O span gas.
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If your O reading on the far left of the display has stabilized, yet is not
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near the setpoint value on the right of the display, you should check the
cal gas value you entered and ensure that this value matches the cal gas
cylinder for the gas you applied to the cal gas inlet port of the sensor.
span gas to the calibration gas
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reading on the far left of the first
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