Emerson Rosemount 248 Reference Manual page 16

Installation
May 2019
2.6.2 Typical North and South American installation
Head mount transmitter with threaded sensor
Procedure
1. Attach the thermowell to the pipe or process container wall then install and tighten
2. Attach necessary extension nipples and adapters to the thermowell making sure to
3. Twist the sensor into the thermowell and install drain seals, if required, for severe
4. Pull the sensor wiring leads through the universal head and transmitter. Mount the
5. Mount the transmitter-sensor assembly into the thermowell sealing the adapter
6. Install conduit for field wiring to the conduit entry of the universal head making sure
7. Pull the field wiring leads through the conduit into the universal head. Attach the
8. Install and tighten the universal head cover. Enclosure covers must be fully engaged
Example
Figure 2-5: North and South American installation diagram
A. Threaded thermowell
B. Threaded style sensor
C. Standard extension
D. Universal head
E. Conduit entry
Rail mount transmitter with integral mount sensor
The least complicated assembly uses:
• an integral mount sensor with terminal block
• an integral DIN style connection head
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thermowells before applying process pressure.
seal the nipple and adapter threads with silicone tape.
environments or to satisfy code requirements.
transmitter in the universal head by threading the transmitter mounting screws into
the universal head mounting holes.
threads with silicone tape.
to seal the conduit threads with silicone tape.
sensor and power leads to the transmitter. Avoid contact with other terminals.
to meet explosion-proof requirements.
Rosemount 248 Temperature Transmitter Reference Manual
Reference Manual
00809-0100-4825