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Instruction Manual
760004-A
February 2002
Rosemount Analytical Inc. A Division of Emerson Process Management Maintenance and Service 4-17
Model NGA 2000 HFID
c. Case Pressure Purge Switch
1. Per Section 4-6, remove securing
hardware from electronics assembly
and lay on bench.
2. Disconnect the two electrical termi-
nals, note location.
3. Disconnect tube at pressure switch.
4. Remove mounting screws (2) and
washers (2).
5. Reverse procedure for installation of
replacement switch.
Figure 4-14. Case Pressure Purge Switch Installation
The bracket does not have to be removed from the electronics assembly for this
procedure.
Case Pressure Purge
Switch 903690