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Instruction Manual
IM-106-910C, Rev. 1.0
November 2009
Replace Contact &
Thermocouple Assembly
Figure 6-10. Contact and
Thermocouple Wiring
1. See Figure 6-1. Loosen and remove the lock clip (22) from the cover
lock slots.
2. Remove left housing cover (18) to access the core.
3. Remove three screws (19).
4. Disconnect the sensor connector plug from electronics board (8). Pull
on the connector lanyard as shown in Figure 6-2.
5. Disconnect black heater wires from the connector plug.
6. Remove screw (24, Figure 6-5).
If the contact and thermocouple assembly does not come free with a light pull, do not pull
harder. Failure to correctly free the contact pad from the cell may result in damage to the
contact and thermocouple assembly.
7. Pull lightly on contact pad assembly (5). If it does not slide free from
guide tube assembly (14), twist the assembly to break the temporary
"weld" between the contact pad and cell (4).
8. Remove contact and thermocouple assembly (5) from sensor core
assembly.
9. Slide the new contact and thermocouple assembly (5) into the sensor
core base (7). A twisting motion can be used to ease installation.
10. Install screw (24) through the ground lead terminal and retaining plate
into the core base (7). Tighten the screw.
11. Reconnect black heater wires at the connector plug. Refer to
Figure 6-10. Polarity on the two black wires is not specified.
12. Re-connect sensor core plug to the electronics board (8, Figure 6-1).
13. Recalibrate the probe per "O2 Calibration" in Section 4 of this manual.
Hazardous Area
X-STREAM O
Transmitter
2
6-13
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