Installation guide

Quick Installation Guide
00825-0100-4825, Rev DB
February 2011
Rosemount 248
11
STEP 4 CONTINUED...
Option 3 (for grounded or ungrounded housing):
1. Ground sensor wiring shield at the sensor, if possible.
2. Insure that the sensor wiring and signal wiring shields are electrically isolated from the
transmitter housing.
3. Do not connect the signal wiring shield to the sensor wiring shield.
4. Ground signal wiring shield at the power supply end.
Grounded Thermocouple Inputs
Option 4
1. Ground sensor wiring shield at the sensor.
2. Ensure that the sensor wiring and signal wiring shields are electrically isolated from the
transmitter housing.
3. Do not connect the signal wiring shield to the sensor wiring shield.
4. Ground signal wiring shield at the power supply end.
4–20 mA loop
Transmitter
Shield ground point
Sensor Wires
4–20 mA loop
Transmitter
Shield ground point
Sensor Wires
00825-0100-4825.fm Page 11 Friday, February 18, 2011 11:49 AM