Instruction Manual

760004-A February 2002

Model NGA 2000 HFID

d.Preamp Assembly

1.Per Section 4-6, remove securing hardware from electronics assembly and lay on bench.

2.Disconnect and note location of ca- bles.

3.Remove the two screws and washers from the top bracket and slide the preamp assembly out.

4.Remove the lower bracket from the preamp assembly and install on re- placement preamp assembly.

5.Slide replacement preamp assembly into top bracket and secure with mounting hardware.

6.Re-connect cables.

Top Bracket

Preamp Assembly 656945

Bottom Bracket

Figure 4-15. Preamp Assembly Installation

4-18

Maintenance and Service

Rosemount Analytical Inc. A Division of Emerson Process Management