INFICON HAPSITE ER Chemical Identification System - Manual (Page 509)

16 - 33
IP
N 07
4-
47
1-
P1
B
HAPSITE ER Operating Manual
10 Select Custom. Type in a range of 60 to 90. This will enable the analyst to scan
for both the 69 and 83 masses. (These are the predominant masses in the
MicroDuster 1,1,1,2-tetrafluorefloroethane that is being used to check for
leaks.) See
Figure 16-39 .
Figure 16-39 Checking For Leaks
11 Spray the MicroDuster around the orifices listed below that could be the source
of a possible leak, while checking the scan on the laptop in the tune program.
If there is a leak, the response for the 69 and 83 masses will increase. See
w .
The critical areas to be checked are:
 The seam between the NEG and the manifold.
 The seam between the Service Module and Analytical Module on the
manifold side.
12 After the manifold has been leak tested and no leaks found, plug the black
cable on the front of the NEG Pump into the black socket located above the
NEG Pump.
13 In the Tune window, turn the IS Supply and Tune Feed on. See Figure 16-35 .
14 At this point, a tune check should be performed on the system. Click on the
Short Tune icon. See
Figure 16-40 . Refer to section 7.2, AutoTune, on page
7-2 .