Install remote electronics housing
Procedure
1. Mount remote electronics housing on wall or pipe within distance of signal
and heater cables in use.
2. Remove the electronics housing cover.
3. If removed, install the power and signal cables and the customer power and
signal conduits and wiring at the electronics housing.
4. Connect the signal cable leads to the O
2
cell and thermocouple connector
(J4) and to the COe and CJC connector (J5), Figure 10-6.
5. Connect the heater cable leads to the heater power connector (J3).
6. Connect the ground lead to the ground stud. Secure the connection with
two nuts. Attach a separate ground lead (G wire) from the ground stud to
the G terminal on the power input terminal block.
7. If used, connect external relay leads to the alarm output relay terminal.
8. Connect the test gas and instrument air lines to the remote electronics
housing. Connect the calibration gas line and instrument air line to the
remote electronics housing.
9. Refer to Figure 10-3 and Figure 10-6. Make sure all test gas lines and
electrical connections are complete.
10. Install the cover on the electronics housing.
11. Turn on the test gases at the cylinders and open the instrument air valve.
12. Restore power to the system.
10.3 Repair sensor housing
Use the following procedures to remove damaged components from the
transmitter's sensor housing and to install new replacement parts.
Disassemble the transmitter only as needed to replace damaged components.
Use the applicable assembly procedures to install replacement parts and
reassemble the transmitter.
10.3.1
Disassemble sensor housing
Remove cover and terminals insulator
.
Manual Maintenance and service
00809-0500-4880 December 2022
Rosemount OCX8800A 249
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