Gas Conditioner Options; Pneumatic Flow Diagrams - Teledyne T200 User Manual

N A
ITRIC CID AND THE
H O reacts with NO
2
passing the air supply for the span gas generator through a special dryer; however, the
permeable membrane of the NO
to slowly collect in the tube at increasingly higher concentrations. Over time this results
in the presence of HNO
pneumatics along with NO
HNO is a liquid at room temperature, so once the HNO
3
tube, it condenses and collects along the T200's wetted surfaces. While liquid HNO
not directly affect the quality of NO
amounts of gaseous HNO
converter, resulting in an artificially high NO
particularly bothersome when the T200 is attempting to measure a zero point, such as
during calibration, since the NO
majority of the HNO
very long time.
To resolve this, the T200 includes a special HNO
given off by the permeation tube before it can be converted into NO by the analyzer's
converter.

GAS CONDITIONER OPTIONS

A R
MMONIA
The T200 includes a permeation gas exchange tube to remove H
generator supply gas stream to a dew point of about -20° C (~600 ppm H
remove concentrations of ammonia (NH
An additional sample conditioner can be added to the T200's sample gas stream.
P
NEUMATIC
This section shows the basic pneumatic flow diagram followed by flow diagrams with
options 50A, 50B, 50G, and 86A. Tables with the valve operating states follow each of the
flow diagrams with valve options.
083730200A DCN7962
C
HEMISTRY OF
to form HNO (nitric acid). The analyzer mitigates this reaction by
2 3
tube will still allow H
2
in the permeation tube which is exuded into the T200's
3
.
2
x
which is converted into NO by the T200's NO
3
concentration will only reach a true zero point once the
2
coating the wetted surfaces has reverted to NO
3
S C
EMOVAL AMPLE ONDITIONER
F D
LOW IAGRAMS
Teledyne API T200 NO/NO
NO P T
ERMEATION UBES
2
O from the ambient environment
2
is released by the permeation
3
measurements of the T200, it does give off small
concentration by 8% to 12%. This is
2
desorber, which eliminates any HNO
3
O (OPT 86A)
PTION
) up to about 1 ppm.
3
/NO Analyzer with NumaView™ Software
2 x
does
3
à NO
x
and this can take a
2
3
O from the ozone
2
O) and effectively
2
47