Emerson Rosemount 753R, Reference Manual

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Reference Manual
00809-0100-4379, Rev AA
March 2006
2-7
Rosemount 753R Indicator
Connect Wiring and
Power Up for Remote
Mounted Transmitters
Figure 2-2. 753R Wiring
Diagram With Remote Mounted
Transmitter
To make connections, perform the following procedure:
1. Remove the housing cover on terminal compartment side. Do not
remove the cover in explosive atmospheres when the circuit is live.
Power for the connected HART
®
transmitter is supplied by the 753R.
2. For remote measurement transmitter configuration, connect HART
®
as
follows:
a. Install the transmitter as recommended by the manufacturer’s
instructions (including the user-supplied Intrinsic Safety barrier if
necessary)
b. Connect the HART
®
(+) and (-) wiring to the terminals.
3. Connect the positive lead to the terminal marked (+) and the negative
lead to the terminal marked (pwr/comm -). Avoid contact with leads and
terminals. Do not connect powered signal wiring to the HART
®
terminals.
4. Plug and seal unused conduit connections on the wireless indicator
housing to avoid moisture accumulation in the terminal side. Install wiring
with a drip loop. Arrange the drip loop so the bottom is lower than the
conduit connections and the wireless indicator housing.
Button
HART®
Transmitter
User-supplied
I.S. Barrier
(where
appropriate)
DI1
PUSH
BUTTON
6-24
V DC
HART
DI02
Connect Negative (-)
Terminal at install
Power Supply
S1AA Option