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Reference Manual
00809-0200-4101, Rev AA
July 2008
Rosemount 2051
2-22
Wiring Wiring and power supply requirements can be dependent upon the approval
certification. As with all F
OUNDATION fieldbus requirements, a conditioned
power supply and terminating resistors are required for proper operation. The
standard 2051 pressure transmitter terminal block is pictured in Figure 2-13.
The terminals are not polarity sensitive. The transmitter requires 9-32 Vdc to
operate. Type A F
OUNDATION fieldbus wiring 18 awg twisted shielded pair is
recommended.
Avoid running instrument cable next to power cables in cable trays or near
heavy electrical equipment.
It is important that the instrument cable shield:
• be trimmed close and insulated from touching the transmitter housing
• be connected to the next shield if cable is routed through a junction box
• be connected to a good earth ground at the power supply end
Figure 2-13. F
OUNDATION fieldbus Wiring
Do not connect the power signal wiring to the test terminals. Voltage may burn out the
reverse-polarity protection diode in the test connection.
DP
Trim shield and insulate
Insulate
Shield
Connect Shield Back
to the Power Supply
Ground