Filter
Top Products
Teledyne API Model 200A NO
X
Analyzer Instruction Manual, 02246, Rev. G, DCN 5247
Table 7-7-21: Calibration Quality Check
Step Number Action Comment
1. Scroll the TEST
function menu until
the NO
x
SLOPE is
displayed
The SLOPE value for NO
x
should be 1.0 ± 0.3. If the value is
not in this range, check Section 9.1.6. 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 SLOPE is
in the acceptable range the instrument will perform optimally. If
the value is not in this range, check Section 9.1.6.
NOTE:
The NO and NO
x
slopes should be equal within ± 0.1.
3. Scroll the TEST
function menu until
the NO
x
OFFSET is
displayed
This number should be near zero. A value of 0.0 – 20 + 150
indicates calibration in the optimal range. This number already
has the AutoZero value subtracted out and is mainly the
background signal due to the molybdenum converter. If the
OFFSET value is outside this range, check Section 9.1.6.
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 –20 + 150 mV). This
number already has the AutoZero reading subtracted out and
should be near zero. If the OFFSET value is outside this range,
check Section 9.1.6.
After the above procedure is complete, the M200A is ready to measure sample gas.
7-36
PRINTED DOCUMENTS ARE UNCONTROLLED