Inficon HAPSITE ER - Attaching HAPSITE to the Service Module

12 - 6
HAPSITE ER Operating Manual
the Service Module, on page 12-6. The high pressure error may also indicate that
the NEG pump is worn and needs replacing. (See Figure 12-1.) Please continue
reading for information on how to troubleshoot NEG pumps.
Figure 12-1 MS Pressure Error
To view the MS pressure:
1 Touch HAPSITE icon.
2 Touch the Tune icon.
3 Locate the MS pressure. In order for HAPSITE to properly operate, the
pressure must be below 6 e-03. If pressure is too high, ionizer will not activate.
If the NEG pump has 150 hours or less consider trying a bakeout to extend the life
of the NEG pump. To check the NEG pump hours, refer to section 7.6.5 on page
7-32
NOTE: If the NEG pump has more than 250 hours, a bakeout can be tried, though
the results are likely to be limited.
12.5 Attaching HAPSITE to the Service Module
CAUTION
Prior to attaching HAPSITE to the Service Module, unplug
the black NEG cable inside the HAPSITE front panel. This
will ensure that the NEG will not heat when using the
Service Module to provide vacuum.
WARNING
Attaching or venting HAPSITE with a NEG that has not
cooled will cause total NEG consumption and possibly
result in severe damage to the HAPSITE Mass
Spectrometer components. It may also result in physical
injury since extreme heat generation from NEG
consumption will create hot surfaces.