Data Recording Devices; No Conversion Efficiency (Ce) - Teledyne T200H User Manual

Teledyne API - Model T200H/T200M Operation Manual
5.2.3.1. Traceability
Table 5-1: NIST-SRM's Available for Traceability of NO
NIST-SRM

5.2.4. DATA RECORDING DEVICES

5.2.5. NO CONVERSION EFFICIENCY (CE)
2
Note
07270D DCN7141
All equipment used to produce calibration gases should be verified against standards of
the National Institute for Standards and Technology (NIST).
traceability, we recommend to acquire cylinders of working gas that are certified to be
traceable to NIST standard reference materials (SRM). These are available from a variety
of commercial sources.
4
2627a Nitric Oxide (NO) in N
2628a Nitric Oxide (NO) in N
2629a Nitric Oxide (NO) in N
1683b Nitric Oxide (NO) in N
1684b Nitric Oxide (NO) in N
1685b Nitric Oxide (NO) in N
1686b Nitric Oxide (NO) in N
1687b Nitric Oxide (NO) in N
2630 Nitric Oxide (NO) in N
2631a Nitric Oxide (NO) in N
2635 Nitric Oxide (NO) in N
2636a Nitric Oxide (NO) in N
2656 Oxides of Nitrogen (NO
2660a Oxides of Nitrogen (NO
2659a Oxygen in Nitrogen (O
A strip chart recorder, data acquisition system or digital data acquisition system should
be used to record data from the serial or analog outputs of the T200H/M. If analog
readings are used, the response of the recording system should be checked against a
NIST traceable voltage source or meter. Data recording devices should be capable of bi-
polar operation so that negative readings can be recorded. For electronic data recording,
the T200H/M provides an internal data acquisition system (DAS), which is described in
detail in Section 4.7. APICOM, a remote control program, is also provided as a
convenient and powerful tool for data handling, download, storage, quick check and
plotting.
To ensure accurate operation of the T200H/M, it is important to check the NO
conversion efficiency (CE) periodically and to update this value as necessary.
The default setting for the NO
function correctly, the converter efficiency must be ≥0.90 (90% conversion efficiency)
as per US-EPA requirements. If the converter's efficiency is outside these limits, the
NO converter should be replaced.
2
The currently programmed CE is recorded along with the calibration data in the
DAS for documentation and performance analysis.
x
TYPE
CONCENTRATION
2
2
2
2
2
2
2
2
2
2
2
2
) in Air
x
) in Air
x
)
2
converter efficiency is 1.0000. For the analyzer to
2
Calibration Procedures
To ensure NIST
Calibration Gases
NOMINAL
5 ppm
10 ppm
20 ppm
50 ppm
100 ppm
250 ppm
5000 ppm
1000 ppm
1500 ppm
3000 ppm
800 ppm
2000 ppm
2500 ppm
100 ppm
21 mol %
2
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