Emerson Rosemount 148 Reference Manual page 22

Installation
June 2019
Ground the transmitter: Option 3
Use this method for grounded or ungrounded housing.
Procedure
1. Ground sensor wiring shield at the sensor, if possible.
2. Ensure that the sensor wiring and signal wiring shields are electrically isolated from
3. Ground signal wiring shield at the power supply end.
Ground the transmitter: Option 4
Use this method for grounded thermocouple inputs.
Procedure
1. Ground sensor wiring shield at the sensor.
2. Ensure that the sensor wiring and signal wiring shields are electrically isolated from
3. Ground signal wiring shield at the power supply end.
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the transmitter housing.
Do not connect the signal wiring shield to the sensor wiring shield.
Figure 2-8: Option 3: Grounded or Ungrounded Housing
A
A. Sensor wires
B. Transmitters
C. DCS host system
D. Shield ground point
the transmitter housing.
Do not connect the signal wiring shield to the sensor wiring shield.
B
D
Reference Manual
00809-0100-4148
C
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