Initial Calibration; Interferents - Teledyne T200 Operation Manual

Getting Started

3.4.4. INITIAL CALIBRATION

Note
Interferents for NO
3.4.4.1.
68
Teledyne API – T200 NO/NO
To perform the following calibration you must have sources for zero air and calibration
(span) gas available for input into the inlet/outlet fittings on the back of the analyzer (see
Section 3.3.2.1).
A start-up period of 4-5 hours is recommended prior to performing a calibration
on the analyzer.
The method for performing an initial calibration for the T200 differs slightly depending
on the whether or not any of the available internal zero air or valve options are installed.

See Section 3.4.4.2 for instructions for initial calibration of the T200 analyzers in
their base configuration.

See Section 9.3 for instructions for initial calibration of T200 analyzers with an
optional Internal Span Gas Generator (OPT 51A).

See Section 9.4 for information regarding setup and calibration of T200 analyzers
with Z/S Valve options.

If you are using the T200 analyzer for EPA monitoring, refer to Section 10 for
references and use only the EPA calibration method.
, NO and NO
x
The chemiluminescence method for detecting NO
number of sources including water vapor (H
and carbon dioxide (CO
interferences.

Ammonia is the most common interferent, which is converted to NO in the
analyzer's NO converter and creates a NO
2

If the T200 is installed in an environment with high ammonia, steps should be
taken to remove the interferent from the sample gas before it enters the reaction
cell.

Teledyne API offers a sample gas conditioning option to remove ammonia and
water vapor (Section 3.3.2.6).

Carbon dioxide (CO
2
concentrations.

If the analyzer is used in an application with excess CO
API's Technical Support Department (see Section 12.10) for possible solutions.

Excess water vapor can be removed with one of the dryer options described in
Section 3.3.2.6. In ambient air applications, SO
For more detailed information regarding interferents for NO
measurement, see Section 13.1.5.
Measurements
2
O), ammonia (NH
2
) but the T200 has been designed to reject most of these
2
X
) diminishes the NO signal when present in high
X
/NO Analyzer Operation Manual
2 X
is subject to interference from a
X
), sulfur dioxide (SO
3
signal artifact.
, contact Teledyne
2
interference is usually negligible.
2
, NO and NO
x
06858E DCN7057
)
2
2