Emerson Process Management 760004-A Per Section, 760004-AFebruary, c.Case Pressure Purge Switch, 3.Disconnect tube at pressure switch, 4.Remove mounting screws (2) and washers (2)

Model NGA 2000 HFID

Instruction Manual

760004-A February 2002

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.

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

Rosemount Analytical Inc. A Division of Emerson Process Management Maintenance and Service 4-17