Teledyne API Model 200AH NOX Analyzer Instruction Manual, 06492, Rev. G2 7-5 Table 7-4: Manual Span Calibration Procedure - Span Gas Thru Sample Port
Step Number Action Comment
1. Press
CAL-CONC-NO This key sequence causes the M200AH to prompt for the
expected NO concentration.
Enter the NO span concentration value by pressing the key
under each digit until the expected value is set. This menu
can also be entered from CALS or CALZ.
2. Press ENTR Pressing ENTR stores the NO span value and returns the
prompt to the CONC menu.
3. Press CAL The M200AH enters the calibrate mode. NO span gas should
be fed to the sample port.
4. Select LOW or
HIGH If AutoRange is selected, it is necessary to select which range
to calibrate. This prompt will not be displayed unless
Autorange or Remote range is selected.
5. Wait 10 min Wait for reading to stabilize at span value.
6. Press SPAN If you change your mind after pressing SPAN, you can still
press EXIT here without spanning the instrument.
7. Press ENTR Pressing ENTR actually changes the calculation equations
and causes the instrument to read the expected NO and NOX
span concentrations.
8. Press EXIT M200AH returns to sampling. Immediately after calibration,
data is not added to the DAS averages.