Emerson Rosemount, Reference Manual

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16
Reference Manual
00809-0100-4021, Rev GC
Section 2: Installation
April 2014
Installation
Note
The National Electrical Code requires that a barrier or seal be used in addition to the primary
(sensor) seal to prevent process fluid from entering the electrical conduit and continuing to the
control room. Professional safety assistance is recommended for installation in potentially
hazardous processes.
2.4.2 Typical European installation
1. Mount the thermowell to the pipe or the process container wall. Install and tighten
thermowells and sensors then apply pressure and perform a leak check before starting
the process.
2. Attach a connection head to the thermowell.
3. Insert the sensor into the thermowell and wire it to the connection head, using the
wiring diagram located on the inside of the connection head.
4. Mount the transmitter to a 2-inch (50 mm) pipe or a suitable panel using one of the
optional mounting brackets. The B4 bracket is shown in
Figure 2-6 .
5. Attach cable glands to the shielded cable running from the connection head to the
transmitter conduit entry.
6. Run the shielded cable from the opposite conduit entry on the transmitter back to the
control room.
7. Insert the shielded cable leads through the cable entries into the connection head and
the transmitter. Connect and tighten the cable glands.
8. Connect the shielded cable leads to the connection head terminals, located inside of
the connection head, and the sensor wiring terminals, located inside of the transmitter
housing. Avoid contact with the leads and the terminals.
Figure 2-6. Typical Remote Mounted Configuration with Cable Glands
A. Cable gland
B. 2-inch pipe
C. Shielded cable from sensor to transmitter
D. B4 Mounting bracket
E. Shielded cable from transmitter to control room
B
A
C
D
E