Instruction Manual

748297-E June 2003

Model NGA2000 HFID

Thermostat

1.Remove oven from analyzer module per Section 4-2a on page 4-3.

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

3.Refer to Figure 4-9 on page 4-11. 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.

Sample Capillary

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

3.Remove burner from thermal block per Section 4-2c on page 4-7.

4.Refer to Figure 4-10 below. 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.

1.Remove oven from analyzer module per Section 4-2a on page 4-3.

Capillary

Cover

Figure 4-10. Thermal Block Assembly

4-12 Maintenance and Troubleshooting

Rosemount Analytical Inc. A Division of Emerson Process Management