INFICON CMS5000 Monitoring System - Manual (Page 31)

3 - 11
IP
N 07
4-
50
8-
P1
C
CMS5000 Operating Manual
CAUTION
If switching from air line sampling to water sampling,
carefully move the purge tube back to the proper inlet.
Placing the sample inlet line in the wrong port will allow
water to be drawn into the CMS5000 and will cause
severe damage to the unit.
The pressure of the sample in the air line must be greater than exhaust of the
CMS5000 but no more than 1 atm. This will prevent any back pressure from
re-entering the sample path and collecting more sample than necessary onto the
concentrator. Sample flow is directional, and when the pressure changes the flow
also changes. The exhaust line is attached to the exhaust port via a compression
fitting (see
Figure 3-14 ). The exhaust line should have at least the same internal
diameter as the sample inlet.
Figure 3-14 Exhaust Line Attached
An example of air line sampling setup is shown in Figure 3-15 .
Figure 3-15 Example Air Line Sampling Setup
Sample
Compression
Fitting
Sample Inlet
Exhaust Line
Detector
Exhaust