Typical North And South American Installation - Emerson Rosemount 248 Reference Manual

Reference Manual
00809-0100-4825, Rev CB
2.3.2

Typical North and South American installation

Head mount transmitter with threaded sensor
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Installation
Attach the thermowell to the pipe or process container wall then install and tighten
thermowells before applying process pressure.
Attach necessary extension nipples and adapters to the thermowell making sure to seal
the nipple and adapter threads with silicone tape.
Twist the sensor into the thermowell and install drain seals, if required, for severe
environments or to satisfy code requirements.
Pull the sensor wiring leads through the universal head and transmitter. Mount the
transmitter in the universal head by threading the transmitter mounting screws into
the universal head mounting holes.
Mount the transmitter-sensor assembly into the thermowell sealing the adapter
threads with silicone tape.
Install conduit for field wiring to the conduit entry of the universal head making sure to
seal the conduit threads with silicone tape.
Pull the field wiring leads through the conduit into the universal head. Attach the sensor
and power leads to the transmitter. Avoid contact with other terminals.
Install and tighten the universal head cover. Enclosure covers must be fully engaged to
meet explosion-proof requirements.
A
A. Threaded thermowell
B. Threaded style sensor
C. Standard extension
B
C
D. Universal head
E. Conduit entry
Section 2: Installation
March 2014
D
E
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