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Instruction Manual
748297-E
June 2003
4-16 Maintenance and Troubleshooting Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 HFID
Case Pressure Purge Switch
1. Per Section 4-2e on page 4-13, re-
move securing hardware from elec-
tronics 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).
Reverse procedure for installation of re-
placement 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