Pneumatic Connections: Ambient Air Monitoring In Same Room; Figure 2-16. Gas Line Connections When The T400 Analyzer Is Located In The Room Being Monitored - Teledyne T400 User Manual

2.3.2.4 PNEUMATIC CONNECTIONS: AMBIENT AIR MONITORING IN SAME ROOM

In this application it is often preferred that the sample gas and the source gas for the O
generator and internal zero air be the same chemical composition.
Minimum 3 ft. in length
SAMPLE and DRY AIR inlets
1
open to room

Figure 2-16. Gas Line Connections when the T400 Analyzer is Located in the Room Being Monitored

S G
AMPLE
For instruments located in the same room being monitored, there is no need to attach the
gas inlet lines to the SAMPLE inlet or the DRY AIR inlet.
E
XHAUST
Attach an exhaust line to the EXHAUST outlet fitting. The end of the exhaust line
should be at least 2 feet from the rear panel of the instrument in order to prevent sampling
its own exhaust (resulting in low readings).
L C
EAK HECK
Once the appropriate pneumatic connections have been made, check all pneumatic
fittings for leaks using the procedures defined in Section 5.6.3.
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1
1
D A S
AS AND RY IR OURCES
O
UTLET
Teledyne API – Model T400 O
SAMPLE
EXHAUST
Instrument Chassis
SPAN
(with IZS installed)
ZERO AIR
DRY AIR
Analyzer
3
3
083730400A DCN8130