Emerson Rosemount 148 Reference Manual page 14

Installation
June 2019
Example
Figure 2-2: Typical European and Asia Pacific Installation
A
A. Transmitter mounting screws
B. Rosemount
C. Integral mount sensor with flying leads
D. Connection head
E. Extension
F. Thermowell
2.3.2 Head mount transmitter with threaded sensor
This type of installation is typical in North and South America.
Procedure
1. Attach the thermowell to the pipe or process container wall.
2. Install and tighten the thermowell before applying process pressure.
3. Attach necessary extension nipples and adapters to the thermowell.
4. Seal the nipple and adapter threads with silicone tape.
5. Screw the sensor into the thermowell.
6. Install drain seals if required for severe environments or to satisfy code
7. Pull the sensor wiring leads through the universal head and transmitter.
8. Mount the transmitter in the universal head by threading the transmitter mounting
9. Mount the transmitter-sensor assembly into the thermowell.
10. Seal adapter threads with silicone tape.
11. Install conduit for field wiring to the conduit entry of the universal head.
12. Seal conduit threads with silicone tape.
13. Pull the field wiring leads through the conduit into the universal head.
14. Attach the sensor and power leads to the transmitter.
15. Install and tighten the universal head cover.
14
B
C
™
148 Transmitter
requirements.
screws into the universal head mounting holes.
Avoid contact with other terminals.
D
E
Reference Manual
00809-0100-4148
F
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