Fisher L2 and L2sj Liquid Level Controllers

Fisher L2 and L2sj Liquid Level Controllers

Fisher™ L2 and L2sj liquid level controllers use a displacer-type sensor to detect liquid level or the interface of two liquids of different specific gravities. The reliability of the design makes these controllers well-suited for high pressure liquid level applications in natural gas production, compression, and processing.

Any questions?

Jörgen Sundin
Solution Seller
Phone. +46 54-57 92 12

Niklas Pettersson
Account Manager
Phone. +46 54-57 92 09

Klaus Bergmann
Area Account Manager East & West
Phone. +45 2112 3345

Peder Hvidberg
Area Account Manager West
Phone. +45 2178 5053

Pekka Immonen
Key Account Manager
Mob. +358 45 168 8355

Taneli Luhanko
Inside Sales Engineer
Phone. +358 207 416 202
Mob. +358 40 757 4208

Area Classification Group II Category 2 Gas and Dust
Certifications ATEX, PED, CUTR
Data Interface Wired
Diagnostics No
Max Outlet Pressure 35 psi / 50 psi
Mounting Type Process Vessel Mounted
Operating Temperature Standard Temperature
Position Control On/Off, Monitoring
Process Control Level
Supply Media Air, Natural Gas
  • Two-stage proportional relay with integral action provides more dependable liquid level control.
  • O-ring friction and process pressure sensitivity are minimal. Performance stays constant with process pressure changes and controller remains vibration-resistant.
  • The displacer may be adjusted in the field for vertical or horizontal operation without additional parts.
  • The controller can be adjusted in the field for direct or reverse action without additional parts.
  • Sensor assembly is designed and specified for ASME B16.34 CL1500 service when using a Polyvinylchloride (PVC) displacer.
  • The ability to pipe away exhaust permits using natural gas as the operating medium.
  • Both the controller and the sensor can be easily disassembled to inspect the process seals and for maintenance.

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