Emerson Rosemount Oxymitter 4000 Reference Manual page 149

July 2018
Instruction Manual
IM-106-340C, Rev. 6.2
Apr 2015
Figure 9-8. Heater Strut Assembly
Figure 9-8. Heater Strut
Assembly
V-Deflector
Ceramic
Diffuser
Assembly
Maintenance and Service
9-17
Ceramic Support Rod
Cell Flange
Heater
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.
8. See Figure 9-8. Grasp the wire loop and carefully slide the heater strut
9. When replacing the strut, orient the probe so that the small calibration gas
assembly (32, Figure 9-3) out of the probe tube.
tube lays at the 6 o'clock position of the probe tube. Align the slot on the
9. When replacing the strut, orient the probe so that the small calibration
heater plate with the calibration gas line in the probe tube. Slide the strut
gas tube lays at the 6 o'clock position of the probe tube. Align the slot on
into the probe tube. It will turn to align the hole on the back plate of the
the heater plate with the calibration gas line in the probe tube. Slide the
strut with the calibration gas line. When the hole and the calibration gas line
strut into the probe tube. It will turn to align the hole on the back plate of
are aligned correctly, the strut will slide in the rest of the way.
the strut with the calibration gas line. When the hole and the calibration
gas line are aligned correctly, the strut will slide in the rest of the way.
10. As the strut installation nears completion, install the guide rod into the
calibration gas tube to assist in guiding the calibration gas tube through the
10. As the strut installation nears completion, install the guide rod into the
hole in the end of the strut.
calibration 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 pressure clamp (34) on the back plate. 11. Push down on the back plate of the strut to make sure you have spring
tension and then install the strut pressure clamp (34) on the back plate.
12. Install gas port fittings (29) in the CAL, REF, and VENT ports.
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).
13. Replace the CAL and REF gas silicon tubes (34) and tube clamps (33).
14. Install the entire electronics per "Replacement of Entire Electronics (with
14. Install the entire electronics per "Replacement of Entire Electronics (with
Housing)", steps 4 and 5.
Housing)", steps 4 and 5.
15. Follow the instructions in "Probe Installation" in Section 2: Installation to
15. Follow the instructions in "Probe Installation" in Section 2: Installation to
install the Hazardous Area Oxymitter 4000 into the stack or duct.
install the Hazardous Area Oxymitter 4000 into the stack or duct.
Hazardous Area Oxymitter 4000
Rosemount Oxymitter 4000
Wire
Loop
149