Emerson Process Management 760004-A a.Sample RTD, 4-5THERMAL BLOCK, Figure 4-9.Thermal Block – Sample RTD, Cartridge Heater and Thermostat

Instruction Manual

760004-A February 2002

Model NGA 2000 HFID

4-5 THERMAL BLOCK

The sample RTD can be replaced with the thermal block attached to burner and mounted in oven. The cartridge heater and thermostat are also replaceable with thermal block secured to burner, but must be removed from the oven.

2.Disconnect the sample RTD wiring connector, note location.

3.Refer to Figure 4-9. Remove the two screws securing the sample RTD, pull sample RTD out.

4.Install replacement sample RTD, se- cure with screws.

a.Sample RTD

1.Refer to Figure 4-4A. Remove the four screws securing the oven cover, remove cover.

5.Attach sample RTD wiring connector.

6.Re-attach oven cover.

Sample RTD 657061

Cartridge Heater 659643

Thermostat 657065

Figure 4-9. Thermal Block – Sample RTD, Cartridge Heater and Thermostat

4-12 Maintenance and Service Rosemount Analytical Inc. A Division of Emerson Process Management