Calibration Procedure Teledyne API Model T201 NH3 Analyzer Operator Manual
18 07271B DCN6646
Table 2-3. NO Calibration Procedure – NO Gas through the SAMPLE Port
Important: Each channel (TNx and NOx) must be Spanned individually
Step No. Action Comment
1. Press CAL The T201 enters the calibrate mode from sample
mode. Confirm that excess NO gas is flowing past the
sample port.
2. Channel Selection Press TNX or NOx then Press ENTR.
3. Range Selection Press LOW or HIGH range then Press ENTR.
Always calibrate the LOW range, Section 3.0below.
4. Press CONC If NOx was chosen previously then the following will
be displayed:
NOx NO CONV Exit
Press NOx, If you are delivering 450 PPB of NO then
Enter 450 PPB, Press ENTR.
Repeat the same steps for NO.
Press EXIT
Once stability has been achieved,
Press SPAN, ENTR, EXIT
NOTE: Both NOx and NO should read 450 PPB.
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If TNx was chosen previously then the following will
be displayed:
TNx CONV Exit
Press TNx enter 450 PPB, Press ENTR
Press EXIT
Once stability has been achieved,
Press SPAN, ENTR, EXIT
TNx should read 450 PPB.
5. Check Slopes The slopes should be close to 1.0 +/- 0.300