• To avoid detecting unwanted objects in the tank or well, it is advisable to
maintain a distance sideways of at least 1.3-in. from the center line of the
transmitter for every foot (11 cm per meter) range to the obstruction
(Figure 4-5).
• No false echoes are generated if the transmitter is located near the side
of the tank or well on condition that the wall is smooth and free of
protrusions. However, there will still be a reduction in the echo size. It is
recommended that the transmitter be mounted no closer than 12 in.
(0.3 m) to the wall to avoid a large reduction in the echo size .
• If the transmitter is mounted in an enclosed tank with a domed top,
avoid mounting the transmitter in the center of the tank roof because
this could act as a parabolic reflector and create unwanted echoes.
• Avoid applications where heavy condensation could form on the
transmitter face.
• If the transmitter is mounted in a stand-off or nozzle, the transmitter
face should protrude at least 0.2-in.(5 mm) into the tank.
• If the transmitter is used in environments where direct sunlight can
cause high temperatures on exposed surfaces, a sun-shade is
recommended.
August 2019 Quick Start Guide
Quick Start Guide 9
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