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Reference Manual
00809-0100-4835 Rev BE
February 2018
Rosemount 3150 Series
Installation
18
Mechanical – Conduit
CAUTION
Connections
Be careful not to damage the set screw interface between the
sensor module and the electronics housing when making
conduit connections.
NOTE
Install the conduit seal in accordance with the manufacturer’s
instructions or use the following procedure:
1. Seal conduit threads with your plant-approved
qualified thread sealant.
2. Install conduit/connector to the manufacturer’s
recommended thread engagement or torque level.
For electrical connectors, refer to the appropriate
manufacturer’s installation manuals. Hold the
electronics housing securely to avoid damaging the
set screw interface between the sensor module and
the electronics housing during conduit installation.
The 3154 electronics housing conduit hub has two
wrenching flats that allow the housing to be held
securely with open end wrench or other suitable tool
during conduit installation.
3. Provide separate support for the conduit if necessary.
Electrical
CAUTION
Do not connect signal leads to the ‘TEST’ terminals.
WARNING
Electrical shock can result in death or serious injury. Avoid
contact with the leads and terminals. High voltage that may
be present on leads can cause electrical shock.
1. Remove the cover from the terminal side of the
transmitter.
2. Connect the power leads to the ‘SIGNAL’ terminals on
the transmitter terminal block (see
). Avoid
contact with the leads and terminals. Do not connect
the powered signal wiring to the test terminals, power
could damage the test diode. Torque the terminal
screws to the value shown in
in
Maintenance and Troubleshooting
Signal wiring supplies all power to the transmitter. If a
3-wire connector is utilized or loop grounding is
required, use the ground screw shown in
3. Recheck connections for proper polarity. Position
excess wiring inside the housing so it cannot be
damaged during cover installation.
4. Carefully replace cover. Take care that electrical
wires do not interfere with cover installation or wire
damage could occur.
NOTE
Housing covers are pre-lubricated and do not require
additional lubrication.