Emerson Rosemount 5408 Reference Manual page 67

Reference Manual
00809-0300-4408
Figure 4-1: Ground Screws
A. Internal ground screw
B. External ground screw
Signal cable shield grounding
Make sure the instrument cable shield is:
• Trimmed close and insulated from touching the transmitter housing.
• Continuously connected throughout the segment.
• Connected to a good earth ground at the power supply end.
Figure 4-2: Cable Shield
A. Insulate shield and drain wire
B. Minimize distance
C. Trim shield and insulate exposed drain wire
D. Connect drain wire to the power supply ground
Note
Do not ground the shield and its drain wire at the transmitter. If the cable shield touches
the transmitter housing, it can create ground loops and interfere with communications.
4.3.5 Power supply
The transmitter operates on 9-32 Vdc (9-30 Vdc in Intrinsically Safe installations and
9-17.5 Vdc for FISCO) at the transmitter terminals.
Rosemount 5408 Level Transmitter
Electrical installation
June 2019
67