Teledyne 6400A Instruction Manual page 19

Sulfur dioxide analyzer
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TAI Model 6400A SO
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:
Step 1 - Enter the expected SO
Step Number
Action
1.
Press CAL-CONC
2.
Press ENTR
3.
Press EXIT
4.
Press SETUP-
RNGE-SET
5.
Press EXIT
Analyzer Operator Manual, 02164, Rev. G
2
span gas concentration
2
Comment
This key sequence causes the 6400A to prompt for the
expected SO
2
value by pressing the key under each digit until the expected
value is set.
ENTR stores the expected SO
used in the internal formulas to compute subsequent SO
concentration values.
Returns instrument to SAMPLE mode.
If necessary you may want to change ranges. Normally the
instrument is shipped with range set at 500 ppb.
Returns the instrument to SAMPLE mode.
2-7
concentration. Enter the SO
span value. This value will be
2
span concentration
2
2

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