Emerson Process Management 760004-A c.Thermostat, b.Cartridge Heater, d. Sample Capillary, Figure 4-10.Thermal Block Assembly

Model NGA 2000 HFID

Instruction Manual

760004-A February 2002

b.Cartridge Heater

1.Remove oven from analyzer module per Section 4-2a.

2.Remove burner/thermal block from oven per Section 4-2b.

3.Refer to Figure 4-9. Loosen retaining set screw, pull out cartridge heater.

4.Install replacement cartridge heater, snug down set screw.

5.Install burner/thermal block into oven.

6.Install oven into analyzer module.

c.Thermostat

1.Remove oven from analyzer module per Section 4-2a

2.Remove burner/thermal block from oven per Section 4-2b.

3.Refer to Figure 4-9. Remove the two retaining screws, pull thermostat out.

4.Install replacement thermostat, attach with the two retaining screws.

5.Install burner/thermal block into oven.

6.Install oven into analyzer module. d. Sample Capillary

1.Remove oven from analyzer module per Section 4-2a

2.Remove burner/thermal block from oven per Section 4-2b.

3.Remove burner from thermal block per Section 4-4a

4.Refer to Figure 4-10. Remove the two screws securing the capillary cover to thermal block, remove cover.

5.Remove capillary nut, remove capil- lary.

6.Install replacement capillary.

7.Insert capillary into thermal block. The capillary may require bending to fit.

8.Install cover.

Capillary

Cover

Figure 4-10. Thermal Block Assembly

Rosemount Analytical Inc. A Division of Emerson Process Management Maintenance and Service 4-13