Installation; Typical European And Asia Pacific Installation - Emerson Rosemount 248 Reference Manual

Section 2: Installation
March 2014
2.3

Installation

The Rosemount 248 can be ordered assembled to a sensor and thermowell or as a stand-alone
unit. If ordered without the sensor assembly, use the following guidelines when installing the
transmitter with an integral sensor assembly.
2.3.1

Typical European and Asia Pacific installation

Head mount transmitter with DIN plate style sensor
1.
2.
3.
4.
5.
6.
7.
8.
9.
10
Attach the thermowell to the pipe or process container wall then install and tighten the
thermowell before applying process pressure.
Assemble the transmitter to the sensor. Push the transmitter mounting screws through
the sensor mounting plate and insert the snap rings (optional) into the transmitter
mounting screw groove.
Wire the sensor to the transmitter (see
Insert the transmitter-sensor assembly into the connection head. Thread the
transmitter mounting screw into the connection head mounting holes and assemble
the extension to the connection head then insert the assembly into the thermowell.
Slip the shielded cable though the cable gland
Attach a cable gland into the shielded cable.
Insert the shielded cable leads into the connection head through the cable entry then
connect and tighten the cable gland.
Connect the shielded power cable leads to the transmitter power terminals making
sure to avoid contact with sensor leads and sensor connections.
Install and tighten the connection head cover making sure the enclosure covers are fully
engaged to meet explosion-proof requirements.
A
D
E
A. Rosemount 248 transmitter
B. Connection head
C. Thermowell
"Sensor wiring Diagrams" on page
B
F
D. Transmitter mounting screws
E. Integral mount sensor with flying leads
F. Extension
Reference Manual
00809-0100-4825, Rev CB
16).
C
Installation