Emerson Rosemount 2051 Reference Manual page 71

Reference Manual
00809-0100-4107
WARNING
Electrical shock
Electrical shock can result in death or serious injury.
Do not run signal wiring in conduit or open trays with power wiring or near heavy electrical
equipment.
4.6.1 Conduit installation
CAUTION
If all connections are not sealed, excess moisture accumulation can damage the
transmitter. Make sure to mount the transmitter with the electrical housing positioned
downward for drainage. To avoid moisture accumulation in the housing, install wiring with
a drip loop, and ensure the bottom of the drip loop is mounted lower than the conduit
connections of the transmitter housing.
Recommended conduit connections are shown in
Figure 4-4: Conduit Installation Diagrams
A. Possible conduit line positions
B. Sealing compound
4.6.2 Power supply
4–20 mA HART
Transmitter operates on 10.5–42.4 Vdc at the terminal of the transmitter. The DC power
supply should provide power with less than two percent ripple. A minimum of 16.6 V is
required for loops with a 250 Ω resistance.
Note
A minimum loop resistance of 250 Ω is required to communicate with a Field
Communicator. If a single power supply is used to power more than one Rosemount 2051
Reference Manual
®
(option code A)
Electrical Installation
September 2020
Figure 4-4.
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