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Quick Start Guide
5
December 2014
The transmitter is Double Insulated, and therefore Protective Earthing is not
required. However, the cable screen should be connected (see Figure 9 on
page 10).
Note that if the equipment is used in a manner not specified by the manufacturer,
the protection afforded by the equipment may be impaired.
This transmitter is classified Type A in accordance with the European EMC directive
2004/108/EC. To ensure electro-magnetic compatibility, in any member state, it
should not be installed in a residential area.
Note
It is not advisable to mount the transmitter in close proximity to a source of
electrical noise such as a variable-speed drive, or other high-powered electrical
device.
Environmental
The Rosemount 3107 and 3108 ultrasonic transmitters are Intrinsically Safe (IS)
approved for hazardous area installations.
The 3107 is designed for open or closed tank installation. It is weatherproof and
protected against the ingress of dust
The 3108 is designed for open channel flow measurement. It is weatherproof and
protected against the ingress of dust
Avoid installing the 3107 and 3108 near heat sources
Figure 3. Environmental considerations
Installation
Mount the transmitter above the liquid using the 1-in. thread provided, but no
closer than 13.8 in. (0,35 m) to the surface. The transmitter does not detect any
liquid surface closer than 12 in. (0,3 m) to the transmitter face
The transmitter should be mounted vertically to ensure a good echo from the liquid
surface. The beam half angle of the transmitter is 6 degrees (Figure 5 on page 7)
OKOK OK