Emerson L2 Datasheet download pdf (Page 1)

www.Fisher.com

Fisher

L2sj Low Emission Liquid Level

Controller

The rugged Fisher L2sj low emission liquid level

controller uses a displacer type sensor to detect liquid

level. This controller features a rugged, low emission

proportional relay with integral action. The device

delivers a direct acting on-off pneumatic output signal

to a control/dump valve.

Features

n Designed for use with Natural Gas—The L2sj

controller is intended for use with natural gas as the

pneumatic supply.

n Increased Revenue—Reduced emissions result in an

increase in natural gas available to the sales line.

n Reduced Operating Costs—Integral action relay with

rugged metal seats requires less maintenance and

provides more dependable liquid level control,

which can improve uptime.

n Reduced Carbon Footprint—A low-bleed relay

helps to conserve natural gas to reduce greenhouse

gas emissions. The relay provides a steady state

consumption rate that is less than the 6 scfh

requirement set for the oil and gas industry by the

US Environmental Protection Agency (New Source

Performance Standards Subpart OOOO,

EPA-HQ-QAR-2010-0505).

n NACE Service Ready—Sensor and vessel connection

complies with the requirements of NACE

MR0175-2002.

W9331

n Ease of Field Setup—Simplified dry and wet setup

and adjustments. Setup and Adjustments illustrated

inside L2sj cover as shown in figure 1.

n Field-Configurable Vertical or Horizontal

Displacer—Displacer may be adjusted in the field for

vertical or horizontal operation without additional

parts.

n Vibration Resistant Sensor Dynamics— O-Ring

friction and process pressure sensitivity are

minimal. Performance stays constant with process

pressure changes and controller remains vibration

resistant.

n Low Supply Pressure—Can operate down to 0.34 bar

(5 psi) instrument supply pressure for coal seam

applications.

L2sj Controller

D103229X012

Product Bulletin

34.2:L2sj

July 2014

1 2 3 4 5 6 7 8

Summary of Contents

Page 1 - Controller

www.Fisher.comFisherr L2sj Low Emission Liquid LevelControllerThe rugged Fisher L2sj low emission liquid levelcontroller uses a displacer type sensor

Page 2 - Specifications

L2sj ControllerD103229X012Product Bulletin34.2:L2sjJuly 2014 2SpecificationsAvailable ConfigurationController: On-Off / Direct ActingSensor: Displacer

Page 3 - Specifications (continued)

L2sj ControllerD103229X012Product Bulletin34.2:L2sjJuly 2014 3Specifications (continued)Hazardous Area ClassificationComplies with the requirements of

Page 4

L2sj ControllerD103229X012Product Bulletin34.2:L2sjJuly 2014 4Figure 1. Setup and Adjustments Label (Inside Fisher L2sj Cover)GE16844

Page 5

L2sj ControllerD103229X012Product Bulletin34.2:L2sjJuly 2014 5Figure 2. Dimensions: 76 x 152 mm (3 x 6 inches) with 76 mm (3 Inch) ExtensionGE22500-A3

Page 6

L2sj ControllerD103229X012Product Bulletin34.2:L2sjJuly 2014 6Figure 3. Dimensions: 48 x 305 mm (1-7/8 x 12 inches) with 152 mm (6 Inch) ExtensionGE44

Page 7

L2sj ControllerD103229X012Product Bulletin34.2:L2sjJuly 2014 7

Page 8

L2sj ControllerD103229X012Product Bulletin34.2:L2sjJuly 2014 8Emerson Process Management Marshalltown, Iowa 50158 USASorocaba, 18087 BrazilChatham, Ke