10/2020

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HORIZONTAL SHORT-SWING

LIQUID LEVEL SENSORS

LDS Series

Features

 Voltage rating up to 250VAC

 Current rating up to 1.0 amp

 Compact design and low profile

 Optional cable lengths

 Includes mounting hardware

 Full and/or empty detection

Applications

 Water and fuel storage tanks

 Pump on/off controls

 Marine bilge and ballast tanks

 Flood detection and prevention

 Coolant level indication

 Livestock watering tanks

 Irrigation systems

 Water treatment plants

 Waste water tanks

 Chemical storage and processing

High- or low-level switching

N.O./N.C. SPST output

Mounted on the side wall of a tank

Certified reed switch (UL component listed)

Body and float made from glass filled nylon 6.6

The LDS series of point liquid level switches demonstrates a high

degree of reliability due to the use of non-reactive wetted

components and a unique reed switch designed specifically for level

sensing applications. The sensor utilizes a moving float with an

embedded magnet to activate a reed switch located in the sensor

body. As the liquid level raises the float, it moves a magnet into

close proximity of the reed switch and actuates it to give an open

contact or closed contact switch indication.

The reliability of this sensor results from a very simple operating

principle, a single moving part, media compatible wetted materials,

and a unique reed switch design that has a UL recognized

component certification.

The sensor mounts into the side wall of a liquid storage tank using

an M16 x 2.0 threaded fitting. The M16 mount is available in an

internal or external configuration. The output is a simple N.O. or N.C.

SPST reed switch that utilizes Ruthenium contact points for

reliability. Changing from a N.O. output to a N.C. output is done by

rotating the switch 180° in the mounting hole. This change can be

done in the field. Electrical outputs are a single pair of wires with

PVC insulation and optional lengths of 0.5 m or 2.0 m.

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