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Fisher™ L2e Electric Level Controller
The Fisher L2e electric on/off level controller uses a displacer-type sensor to detect liquid level or the interface of two liquids of different specific gravities.
This controller is ideal for controlling level in oil and gas separators, treaters, and scrubbers. The reliability of the L2e force-balanced sensor design makes it well-suited for applications in the oil and natural gas production, compression, and processing industries.

Fisher L2e Electric Level Controller Initial Setup

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Fisher L2e Electric Level Controller Zero and Span Adjustment

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Fisher L2e and easy-Drive Wiring Connections

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Fisher™ L2e Electric Level Controller


Area Classification
Explosion Proof, Flame Proof, Dust Ignition Proof
Data Interface
Mounting Type
Process Vessel Mounted
Operating Temperature
Standard Temperature
Position Control
Process Control
Other Configurations
Contact your local Emerson business partner or sales office to learn about additional specifications or options for this product.


  • Intuitive zero and span adjustments allow flexibility in setting loop performance.
  • Premium quality hermetically-sealed switch with gold contacts and advanced knife-edge sensing provide highly dependable and accurate liquid level control.
  • QR code on inside cover gives instrument technicians instant access to wiring, set-up, calibration, tuning, and trouble-shooting.
  • Quality of design and components help ensure no leakage current.
  • Controller performance and reliability does not degrade in high vibration installations, such as compressor scrubbers.
  • Displacer may be adjusted in the field for vertical or horizontal operation without additional parts.
  • The sensor can be easily disassembled to inspect or replace process seals. The controller, with no repairable or replaceable parts, is easily replaced in the field.
  • Standard construction uses materials that comply with the requirements of NACE MR0175-2002.


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