Emerson Process Management OXYMITTER 4000 instruction manual Hazardous Area Oxymitter

Hazardous Area Oxymitter 4000

Instruction Manual

IB-106-340C Rev. 4.1 July 2004

15.Replace right housing cover (1, Figure 9-3); make sure it is tight. Secure the cover using captive washer (20), cover lock (19), and screw (18).

16.Install and tighten cover (1); make sure it is tight. Secure the cover using cap- tive washer (20), cover lock (19), and screw (18).

When working on this equipment on the laboratory bench, be aware that the Hazardous Area Oxymitter 4000, probe tube, and flame arrestor hub can be hot [up to 300°C (572°F)] in the region of the probe heater.

f.Entire Probe Replacement (Excluding Electronics)

Do not attempt to replace the probe until all other possibilities for poor performance have been considered. If probe replacement is needed, see Table 11-1for part numbers.

1.Follow the instructions in paragraph

9-4ato remove the Hazardous Area Oxymitter 4000 from the stack or duct.

2.Separate the probe and the electronics housing per paragraph 9-4b,step 2.

3.Reinstall electronics on the new probe per paragraph 9-4b,steps 4 and 5.

4.Follow the instructions in paragraph 2-1bto install the Hazardous Area Oxymitter 4000 into the stack or duct.

When working on this equipment on the laboratory bench, be aware that the Hazardous Area Oxymitter 4000, probe tube, and flame arrestor hub can be hot [up to 300°C (572°F)] in the region of the probe heater.

g.Heater Strut Replacement

This paragraph covers heater strut replace- ment. Do not attempt to replace the heater strut until all other possibilities for poor per- formance have been considered. If heater strut replacement is needed, order a re- placement heater strut. See Table 11-1.

Use heat resistant gloves and clothing when removing probe. Do not attempt to work on the probe until it has cooled to room temperature. The probe can be as hot as 300°C (572°F). This can cause severe burns.

1.Follow the instructions in paragraph

9-4ato remove the Hazardous Area Oxymitter 4000 from the stack or duct.

2.Remove oxygen sensing cell per para- graph 9-4h,steps 1 through 5.

Do not force the probe housing when installing or removing from the inte- gral electrical barrier/feedthrough (Figure 9-3). Damage to the aluminum probe housing can occur.

3.Remove four screws (22, Figure 9-3)and washers (21) from the probe tube assembly (23). Remove the probe tube assembly from the housing (11).

4.Once the probe and housing are sepa- rated, spring tension releases, and the heater strut assembly (32) moves up.

Remove strut pressure clamp (35).

5.Disconnect the heater and signal wire

connectors from the mating connectors	9
on the heater strut assembly (32).

Rosemount Analytical Inc. A Division of Emerson Process Management Maintenance and Service 9-13