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Teledyne API Model 200A NO
X
Analyzer Instruction Manual, 02246, Rev. G, DCN 5247
Step 3 - Review the quality of the calibration:
Calibration Quality Check Procedure
Step Number Action Comment
1. Scroll the TEST
function menu until
the NO
x
SLOPE is
displayed.
The SLOPE value for NOx should be 1.0 ± 0.3. If the value is
not in this range, check Section 7.10 or 9. If the SLOPE value
is in the acceptable range, the instrum
ent will perform
optimally.
2. Scroll the TEST
function menu until
the NO SLOPE is
displayed.
The SLOPE value for NO should be 1.0 ± 0.3. If the value is
not in this range, check Section 7.10 or 9. If the SLOPE is in
the acceptable range, the instrum
ent will perform
optimally.
NOTE:
The NO and NOx slopes should be equal within ± 0.1.
3. Scroll the TEST
function menu until
the NOx OFFSET is
displayed.
The M200A will display the OFFSET parameter for the NOx
equation. This number should be near zero. A value of 0.0
± 150 mV indicates calibration in the optimal range. If the
OFFSET value is outside this range, check Section 7.4 or 9 for
procedures to correct the OFFSET value to near zero.
4. Scroll the TEST
function menu until
the NO OFFSET is
displayed.
The instrument will now display the NO OFFSET value. It
should also have a value near zero (0.0 ± 150 mV).
Step 4 - The M200A is now ready to measure sample gas.
2-9
PRINTED DOCUMENTS ARE UNCONTROLLED