Teledyne T200, Руководство по эксплуатации, Страница: 62 / 425

Getting Started Teledyne API
– T200 NO/NO
2
/NO
X
Analyzer Operation Manual
60
Table 3-9: Valve Operating States OPT 50B installed
MODE VALVE CONDITION
VALVE PORT
STATUS
SAMPLE
Sample/Cal Open to SAMPLE inlet
NO

COM
Zero/Span Open to ZERO AIR inlet
NO

COM
Span Shutoff
Closed
Zero Air Shutoff
Closed
ZERO CAL
Sample/Cal Open to ZERO/SPAN Valve
NC

COM
Zero/Span Open to ZERO AIR inlet
NO

COM
Span Shutoff
OPEN
Zero Air Shutoff
1
Closed
SPAN CAL
Sample/Cal Open to ZERO/SPAN Valve
NC

COM
Zero/Span Open to SPAN inlet
NC

COM
Span Shutoff
Closed
Zero Air Shutoff
OPEN
3.3.2.5. ZERO SCRUBBER AND INTERNAL SPAN SOURCE (IZS) (OPT 50G)
The internal NO
2
span gas generator and calibration valve option is intended for
applications where there is a need for frequent automated calibration checks without
access to an external source of span gas.
This valve package includes:

a 2-stage external scrubber for producing zero air

50% Purafil Chemisorbant
®
(for conversion of NO  NO
2
)

50% charcoal (for removal of the NO
2
)

a heated enclosure for a NO
2
permeation tube

This option package DOES NOT contain an actual permeation tube. See
Table 1-1 for information on specifying the correct permeation tube for each
application.

a special desorber that removes all HNO
3
from the calibration gas stream

one additional gas inlet port (
ZERO AIR
)

one additional gas outlet port (
FROM DRYER
)

two internal valves for switching between the sample gas inlet and the output of the
zero/span subsystem
06858E DCN7057