LS7000 Full-Featured Level Sensor

Ignores significant product build up;
Solid state, no moving parts;
Simple installation and calibration;
Explosion proof housing standard;
Built-in static protection.

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The LS7000 has features that make it the most versatile level control switch on the market today. As our most popular point level switch, this unit can sense virtually any liquid or dry material. It can even be used for liquid interface applications to detect the level of immiscible liquids that have different dielectric constants such as oil and water. The unit features an on-board test switch and built-in time delay to prevent false switching during filling or in turbulent applications. The LS7000 has no moving parts making it an excellent replacement for rotating paddles, floats or other mechanical devices.


The radio frequency (RF) balanced impedance is extremely stable over wide temperature swings and provides the ability to ignore significant product buildup, thus eliminating the need for recalibration. Every standard unit has an on-board fuse and surge suppressor to protect the circuitry from power surges. Additionally, a static suppression circuit protects against hostile bin environments created by static-prone materials such as plastic pellets.

The built-in timer allows the user to select ON DELAY or OFF DELAY operation if desired. The timing range is adjustable from 1/8 second to 2 hours. The timer can be used to ignore wave action in a turbulent vessel, or the timer can be used to pump down a sump with a single probe.

When the probe is installed, it is calibrated in absence of material touching the probe. When the desired material comes in contact with the probe, the LS7000 is activated and gives the desired output.

The standard probe is made of a solid 316 stainless steel rod, 1" NPT process connection and Teflon insulator. Other material insulators are optional. The standard seals are made with Viton "O" rings. All the electronics are housed in a cast aluminum explosion-proof enclosure.

The solid stainless steel rod is available in a variety of lengths and is suited for liquids or bulk solids. These probes can be coated with Halar in lengths up to 72 inches.


Industrial Technical Services from Mississauga, Ontario is a single source Instrumentation and


  • Ignores significant product build up
  • Solid state, no moving parts
  • Simple installation and calibration
  • Explosion proof housing standard
  • Built-in static protection
  • User Programmable time delay
  • On board fuse and test switch


  • High or low level alarms
  • Auto tank filling
  • Sump control
  • Oil/water interface detection
  • Dry pump protection


  • Waste/Wastewater
  • Acids/Caustics
  • Fuels/Oils
  • Slurries

Dry Solids:

  • Flour/Grains
  • Powders
  • Plastics
  • Sand/Cement
  • Wood Chips
  • Fly Ash


  • Oil/Water
  • Foam/Liquid



Power: 115VAC (+/- 15%) 50/60Hz, 2 watts STANDARD (12 VDC, 24VDC or 230VAC Optional)

Output: 2 Form C Contact DPDT relay, 5 amp resistive at 125, 230VAC; 30VDC

On Board Fuse: 250mA

Failsafe: Selectable High or Low level

Time Delay: Selectable ON/OFF Delay; Adjustable 1/8 second to 2 Hours

RF Frequency: Approx. 1.3 MHz


Temperature: Teflon insulator   -30F to 450F

Pressure: 1500 psi @ 75F – 1” NPT STANDARD
                 300 psi @ 75F – ¾” NPT (Optional)

Hazardous Area: Housing is CSA and UL approved for Class I, Div. 1, Groups C & D;  Class II, Groups E, F & G  

Automation company. We provide certified calibrations, PLC programming, custom controls and Panels.

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