Quick Installation Guide
00825-0100-4825, Rev CA
February 2006
Rosemount 248
S
TEP
4
CONTINUED
...
Option 2 (for ungrounded housing):
1. Connect signal wiring shield to the sensor wiring shield.
2. Ensure the two shields are tied together and electrically isolated
from the transmitter housing.
3. Ground shield at the power supply end only.
Ensure that the sensor shield is electrically isolated from the
surrounding grounded fixtures.
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.
Sensor Wires
4–20 mA loop
Shield ground point
Connect shields together, electrically isolated from the transmitter
Transmitter
4–20 mA loop
Sensor Wires
Shield ground point
Transmitter
00825-0100-4825.fm Page 11 Wednesday, February 8, 2006 1:53 PM
