INFICON HAPSITE Smart Plus Chemical Identification System - Manual (Page 539)

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HAPSITE Smart Plus Operating Manual
4 Select Activate NEG.
5 When prompted on the front panel, enter the Serial Number of the new NEG
Pump.
6 The NEG Pump will take approximately 18 hours to activate. The process is
completely automated and does not require any user interaction until the
process is complete.
7 Once the NEG Pump is activated, remove the HAPSITE from the Service
Module. (Power the HAPSITE with battery or an external power supply.)
Refer to the
section 15.8, Detaching the HAPSITE, on page 15-17 for
instructions on safely removing the HAPSITE from the Service Module.
8 Repeat the leak check portion of the process. Instead of checking for a leak
between the Analytical Module and Service Module, check the VI valve on
the bottom of the HAPSITE. This is where the Service Module physically
attaches. (Refer to
section 16.7.5 on page 16-34 .)
9 If there is a leak, the leak must be sealed by repeating section 16.7.2 through
section 16.7.4 . Repeat the leak check portion in section 16.7.5 and the NEG
Pump reactivation in section 16.7.6 .
16.8 Replacing the Ionizer of the Mass Spectrometer
The Ionizer is located in the mass spectrometer vacuum manifold behind the NEG
Pump, (or a blank off plate if a NEG Pump is not installed). The NEG pump must
be removed in this procedure. If a NEG Pump is installed, it can be reinstalled and
re-activated. Some of the NEG Pump lifetime will be lost during this process. If a
NEG Pump has greater than 50 hours (approximately 1/2 the expected life) the
more economical choice may be to replace the pump, based on the reduced
lifetime after exposure to atmospheric pressure.
16.8.1 Required Tools and Equipment
 Flat head screw driver
 Ionizer removal tool
 13 mm open end wrench
 13 mm torque wrench.
 Methanol
 Lint free cloth
 Powder free gloves
 Replacement aluminum seal ring (if NEG Pump is to be installed)