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Teledyne API Model 201A NH
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Analyzer Instruction Manual, 04689, Rev. B1
Table 2.3 - Span Calibration Procedure - Span Gas thru Sample Port
Step No.
Action Comment
1. Press CAL The M201A enters the calibrate mode. Input NO span
gas through the sample port.
2. Press
CAL-CONV-SET
Set the converter efficiency parameter to 1.0000, then
press ENTR-EXIT.
2. Wait 20 min Wait for reading to stabilize at span value.
3. Press SPAN If you change your mind after pressing SPAN, you can
still press EXIT here without spanning the instrument.
4. Press ENTR Pressing ENTR actually changes the calculation
equations and causes the instrument to read the TN
and TNx span concentrations.
5. Press EXIT M201A returns to sampling. Immediately after
calibration, data is not added to the DAS averages.
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