Setup And Calibration; Calibration Procedure; Nox Slope And Offset Calibration - Teledyne T200UP Addendum To The Operation Instructions

4.

SETUP AND CALIBRATION

4.1 Calibration Procedure

Note
4.1.1
07450B DCN6495
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After making electrical and pneumatic connections, run a basic
functionality check as described in the T200 manual section, Startup,
Functional checks, and Initial Calibration under GETTING STARTED.
The T200UP requires zero and span calibrations, possibly HVPS
adjustment, followed by calibration of the converter efficiency points
before operation begins. This section presents those procedures.
Calibration of the photolytic analyzer consists of a three-step process:

Zero the analyzer using dry instrument grade air per the EPA
Protocol Calibration section of the T200 manual.

Calibrate the Nitric Oxide (NO) and Oxides of Nitrogen (NOx)
slopes using instrument grade NO calibration gas balanced in
Nitrogen per the EPA Protocol Calibration section of the T200
manual.

Calibrate the two converter efficiency points (CEA and CEB) by
either diluting instrument grade NO
phase titration (GPT) to generate the NO
As outlined in the T200 manual, calibration gases must be vented prior
to the sample port, at the rear of the analyzer. Also the total flow of the
calibration gas should exceed 2 slpm to assure excess gas.
NO/NOx Slope and Offset Calibration
1. Enter the Converter Efficiency menu (CAL>CONC>CONV), and set
CE point A and point B to 1.000:
a. Press SETA, then press the numbered buttons until the Param
field reads "CONV EFF A:1.0000 Gain" , and press ENTR.
b. Press SETB, then press the numbered buttons until the Param
field reads "CONV EFF B:1.0000 Gain", then press ENTR.
2. Press EXIT to leave the Converter Efficiency menu.
3. Conduct a Zero calibration using zero air per the T200 Operation
Manual calibration procedures in the EPA Protocol Calibration
section. This sets the NO & NOx offsets for each channel.
4. Conduct an NO Span calibration at 80-90% of the expected span
range per the T200 Operation Manual calibration procedures in the
gas balanced in Nitrogen, or gas
2
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2
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