Emerson 3108 User Manual

December 2014

4

Components of the transmitter

The transmitter has a housing containing advanced electronics to generate ultrasonic 

pulses, process the resultant signals, and provide a 4–20mA and HART output. 

There is a factory-fitted cable for the signal output and connecting an external power 

supply. The 3108 has a factory-fitted Remote Temperature Sensor.

A. Mounting bracket

D. UPVC wetted parts

B. Two-core cable

E. Remote temperature sensor (3108 only)

C. 1-in. mounting thread

Install the transmitter where it is protected from ultraviolet radiation to prevent long 

term degradation of the plastics used in its construction e.g. shrouded from direct 
sunlight.

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See also 

 for special conditions for safe use.

General

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Installation must be carried out by suitably trained personnel in accordance with 

the applicable code of practice.

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If the equipment is likely to come into contact with aggressive substances, it is the 

responsibility of the user to take suitable precautions that prevent it from being 
adversely affected, thus ensuring that the type of protection is not compromised.

Aggressive Substances are acidic liquids or gases that may attack metals or 

solvents that may affect polymeric materials.

Suitable Precautions are regular checks as part of routine inspections, or 

establishing, from the material's datasheet, that it is resistant to specific 
chemicals.

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The equipment should only be cleaned with a damp cloth; do not use solvents.