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Fisher-P-L2 and L2SJ

Fisher™ L2 and L2sj Liquid Level Controllers

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Product Description

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.

Specifications

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
Other Configurations
Contact your local Emerson business partner or sales office to learn about additional specifications or options for this product.

Documents & Drawings

Features

  • 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.