Fisher L2 and L2sj Liquid Level Controllers

Product Description

The Fisher L2 and L2sj liquid level controllers utilize a displacer-type sensor to detect liquid levels or interfaces between liquids with different specific gravities. These controllers are highly reliable, making them ideal for high-pressure liquid level applications in natural gas production, compression, and processing.

Key Features

• Reliable Level Control: A two-stage proportional relay with integral action ensures precise and dependable liquid level control.

• Minimal Friction and Sensitivity: O-ring friction and process pressure sensitivity are minimized, maintaining consistent performance despite pressure changes and ensuring resistance to vibrations.

• Flexible Field Adjustments:

  • Displacer can be set for vertical or horizontal operation without additional components.

  • Controller action (direct or reverse) can also be changed in the field without extra parts.

• Robust Sensor Assembly: Designed for ASME B16.34 CL1500 service when paired with a Polyvinylchloride (PVC) displacer.

• Exhaust Management: Allows piping away of exhaust, enabling the use of natural gas as the operating medium.

• Ease of Maintenance: Both the controller and sensor can be easily disassembled for inspection and maintenance of process seals.

Specifications

• Area Classification: Group II, Category 2 Gas and Dust

• Certifications: ATEX, PED, CUTR

• Data Interface: Wired

• Diagnostics: Not included

• Maximum Outlet Pressure: 35 psi or 50 psi

• Mounting Type: Process vessel-mounted

• Operating Temperature: Standard temperature range

• Position Control: On/Off, Monitoring

• Process Control: Level

• Supply Media: Air, Natural Gas