
3. Disconnect the calibration gas and instrument air lines from the transmitter.
4. While facing the transmitter and looking at the Rosemount
™
label, remove screw
(18), cover lock (19), and captive washer (20) that secures the cover (17) on the left
side of the housing (11). Remove the cover to expose the terminal block (15).
5. Remove all signal and power wiring to the probe.
6. Remove insulation to access the mounting bolts.
7. Unbolt the transmitter from the stack and take it to a clean work area.
8. Allow the unit to cool to a comfortable working temperature.
9.3.2
Replace probe
Refer to
if you are using integral electronics or
remote electronics. The numbers in the steps below correspond to the numbers of the
items in those figures.
Procedure
1. Bolt the transmitter to the stack and install the insulation.
2. Connect all signal and power leads at the probe.
for detailed wiring instructions.
3. Install left side cover (17) and ensure it is tight. Secure the cover using captive
washer (20), cover lock (19), and screw (18).
4. Connect the calibration gas and instrument air lines to the probe.
5. Turn on the calibration gases at the cylinders and turn on instrument air.
6. Restore power to the system.
Start up and operate transmitter with membrane keypad
or
7. When the probe has reached operating temperature, calibrate it per
or
Note
Recalibrate whenever you replace electronic cards or the sensing cell.
9.3.3
Replace entire electronics (with housing)
WARNING
Opening the electronics housing will cause the loss of all hazardous permits. Opening the
electronics housing in hazardous areas may cause an explosion resulting in loss of
property, severe personal injury, or death.
You may need to get a hot work permit from your company safety officer before opening
the electronics housing.
Refer to
. The numbers in the following steps correspond to the numbers of the
items in that figure.
Maintenance and service
Reference Manual
October 2019
00809-0100-4340
158
Emerson.com/Rosemount
Summary of Contents for Rosemount Oxymitter 4000
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