Instruction Manual

748297-E June 2003

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 replacement switch.

Case Pressure Purge

Switch 903690

The bracket does not have to be removed from the electronics assembly for this procedure.

Figure 4-14. Case Pressure Purge Switch Installation

4-16 Maintenance and Troubleshooting

Rosemount Analytical Inc. A Division of Emerson Process Management