Teledyne API Model 200AU NOX Analyzer Instruction Manual, 02293, Rev. F
7-17
1. Automatic Converter Efficiency compensation. See Sections 7.6.6, this manual.
2. Independent range selection. See Sections 5.3.4 and 7.7, this manual.
3. Automatic temperature/pressure compensation. See Table 9-5.
4. Alternate units, make sure ppb units are selected for EPA monitoring. See Section
5.3.4.5.
5. Autoranging option. See Section 5.3.4.2.
Converter efficiency should be set prior to calibration since its value is used in the computation
of the NOx and NO2 concentration outputs.
The analyzer should be calibrated on the same range used for monitoring.
If AutoRanging or Independent range options are selected the highest of the ranges will result in
the most accurate calibration, and should be used.
Make sure the GPT calibration system can supply the range of concentrations at a sufficient flow
over the whole range of concentrations that will be encountered during calibration.