ULTRASONIC LEVEL SWITCH ULS

Description

The level switch is designed for checking of the liquids level in industrial and marine applications, pumps control, for detection of levels in overfill pipes, high and low alarm level on liquids with or without foam.
The level switch works on the principle of distribuited acoustic waves in a metal rod. If the rod is not covered by the liquid the sound waves are dispersed freely without any interference.
When the liquid covers the rod the emission of sound wave is muffled and this interference is picked up by the piezoelectric sensor and transmitted by a signal to the current loop.
These instruments have no moving parts, no vibration, no optical or capacitive detectors. They are pure static sensor offering the maximum reliability.

Tecnical description

TECHNICAL FEATURES:

• If the liquid wets the probe for at least 10mm it becomes active; differential of 5 mm. for vertical mounting and of 3 mm. for horizontal mounting
• All parts in contact with the fluid are in AISI 316
• It does not require any calibration
• Aluminium housing, painted with epoxy cicle, water proof or explosion proof ATEX
• Alarm output 2 wires or relay mounted on field or back-ofboard on guide DIN
• Different power supplies available.
• Isolation > 5Ghom at 500V a.c.
• Operating temperature: -40 +90° C
• Stocking temperature: -40 +90° C
• Lenght of the probe: from 25 to 600 mm. (std. 114 mm.) other lenghts on request
• Operating pressure 100 Bar, or according to the type of process connection