Ultrasonic Level Transmitters - ULM Series Manufacturers & Suppliers

Ultrasonic Level Meters ULM – 53

• For continuous level measurement of liquids (even if polluted), mash and paste materials in open or closed vessels, sumps, open channels, etc.

• Configuration and adjustment of measuring range by two buttons

• Xi version for usage in explosive areas

• State indication by two LEDs

• Current (4 … 20 mA) or voltage (0 … 10 V) output

• Options of inverse function (20 … 4 mA or 10 … 0 V)

Description

Ultrasonic level meters ULM® is self contained device that includes electroacoustics transducer and electronic module. The level meter ULM transmits series of ultrasonic pulses which propagates towards the liquid surface. Reflected acoustic wave is received back in the ULM transducer and processed in electronic module. The distance calculations are based on time of flight of the acoustic wave to the level and back.

The level meters are suited to level measurement of various liquid materials, sewerage waters, mash and paste materials, suspensions etc. In case the level of bulk-solid materials is measured, the measurement range is reduced. We recommend to consult the use with the manufacturer

All the setting is done by means of two buttons, located in the upper part of the sensor. Level meters are equipped with optimal state indication "STATE" and the setting process "MENU". The level meters outputs can be current or voltage.

Installation

Level meter is installed into the upper lid of the tank (vessel), using a fi xing nut or a fl ange. If installed in an open channel (sumps, reservoirs, etc.), install the level meter as closest as you can to the maximum level expected.

The front of the level meter must run in parallel to the measured level. Emitted acoustic signal must not be affected by near objects (stiffeners, ladders, mixers, unevenness, etc.), stream of fi lling, air fl ow, etc.

Foam on the level absorbs the acoustic wave refl ection which might cause malfunction of the level meter. If possible select the location where the foaming is as low as possible. Protect the level meter against direct sunlight.

Features

ULM –53_ –02–_
Measuring range from 0.25 m to 2 m,
plastic PVDF transmitter and plastic body (PP+HDPE), process connection with thread G 1″.

ULM –53_–06–_
Measuring range from 0.25 m to 6 m,
plastic PVDF transmitter and plastic body (PP+HDPE), process connection with thread G 1 ½”.

ULM –53_–10–_
Measuring range from 0.5 m to 10 m,
plastic PVDF transmitter and plastic body (PP+HDPE), aluminium alloy (“Xi” version) or HDPE (“N” version) flange.

ULM–53_–20–_
Measuring range from 0.5 m to 20 m,
with plastic PVDF transmitter and plastic body (PP+HDPE), aluminium alloy flange.

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