Teledyne 200A Instruction Manual page 19

Teledyne API Model 200A NO
7. When the instrument is warmed up, re-check the TEST functions against Table 2-1. All
of the readings should compare closely with those in the Table. If they do not, see Section
9.1.1. 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 NO
Step Number
1.
2.
3.
4.
5.
6.
7.
Analyzer Instruction Manual, 02246, Rev. F1
X
and NO span gas concentrations:
x
Action
Press
CAL-CONC-NOx
Press ENTR
Press
CAL-CONC-NO
Press EXIT-EXIT
Press
SETUP-RNGE-
MODE-SING-ENTR
Press
SETUP-RNGE-SET
Press EXIT
Comment
This key sequence causes the M200A to prompt for the
expected NOx concentration. Enter the NOx span
concentration value by pressing the key under each digit until
the expected value is set.
ENTR stores the expected NOx span value. This value will be
used in the internal formulas to compute subsequent NOx
concentration values.
In the same CAL-CONC sub menu press the NO button and
enter the expected NO span value, then ENTR. As before this
value will be used in the internal formulas to compute the
subsequent NO concentration values.
Returns instrument to SAMPLE mode.
If necessary you may want to change ranges. Normally the
instrument is shipped in single range mode set at 500 ppb. We
recommend doing the initial checkout on the 500 ppb range.
After SETUP-RNGE-SET, enter 500 and press ENTR. The
instrument will now be in the 500 ppb range.
Returns instrument to SAMPLE mode.
2-7