Emerson Process Management OXYMITTER 4000 instruction manual Heater Strut Assembly

Instruction Manual

IB-106-340C Rev. 4.1 July 2004

Hazardous Area Oxymitter 4000

WIRE

LOOP

V-DEFLECTOR

CERAMIC SUPPORT ROD

CERAMIC

DIFFUSER CELL FLANGE

ASSEMBLY

HEATER

27540007

Figure 9-8. Heater Strut Assembly

6.Remove tube clamps (33). Carefully pull the CAL and REF gas silicon tubes (34) from the CAL and REF gas ports.

7.Remove gas port fittings (29) from the CAL, REF, and VENT ports.

8.See Figure 9-8.Grasp the wire loop and carefully slide the heater strut assembly (32, Figure 9-3)out of the probe tube.

9.When replacing the strut, orient the probe so that the small calibration gas tube lays at the 6 o’clock position of the probe tube. Align the slot on the heater plate with the calibration gas line in the probe tube. Slide the strut into the probe tube. It will turn to align the hole on the back plate of the strut with the calibration gas line. When the hole and the calibration gas line are aligned cor- rectly, the strut will slide in the rest of the way.

10.As the strut installation nears comple- tion, install the guide rod into the cali- bration gas tube to assist in guiding the calibration gas tube through the hole in the end of the strut.

11.Push down on the back plate of the strut to make sure you have spring tension and then install the strut pres- sure clamp (34) on the back plate.

12.Install gas port fittings (29) in the CAL, REF, and VENT ports.

13.Replace the CAL and REF gas silicon tubes (34) and tube clamps (33).

14.Install the entire electronics per para- graph 9-4b,steps 4 and 5.

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

9-14 Maintenance and Service Rosemount Analytical Inc. A Division of Emerson Process Management