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Teledyne API Model 100AH SO
2
Analyzer Instruction Manual, 02417, Rev. D
The next task is to calibrate the analyzer. There are several ways to do a calibration; they are
summarized in Table 7-1. For a preliminary checkout we recommend calibration with zero air
and span gas coming in through the sample port. The procedure is:
WARNING – Analyzer Exhaust
Danger – Analyzer exhaust may contain high concentration of
SO
2
gas. Exhaust properly from the pump pack exhaust to well
ventilated area at atmospheric pressure.
Step 1 - Enter the expected SO
2
span gas concentration:
Step Number Action Comment
1. Press CAL-CONC This key sequence causes the M100AH to prompt for the
expected SO
2
concentration. Enter the SO
2
span
concentration value by pressing the key under each digit until
the expected value is set.
2. Press ENTR ENTR stores the expected SO
2
span value. This value will be
used in the internal formulas to compute subsequent SO
2
concentration values.
3. Press EXIT Returns instrument to SAMPLE mode.
4. Press SETUP-
RNGE-SET
If necessary you may want to change ranges. Normally the
instrument is shipped in single range mode set at 500 PPM.
(see Section 5.3.4 for Range Menu)
5. Press EXIT Returns the instrument to SAMPLE mode.
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