Introduction; Scope Of Manual; Description; Specifications - Emerson Fisher FIELDVUE L2t Instruction Manual

L2t Liquid Level Controller
October 2023

Introduction

Scope of Manual

This instruction manual includes specifications, installation, basic setup
and configuration, and maintenance and troubleshooting information for
the Fisher FIELDVUE L2t liquid level controller.
This manual describes using the local interface or an Emerson handheld
communicator, such as the AMS Trex Device Communicator, to setup and
calibrate the instrument.
Do not install, operate, or maintain a FIELDVUE L2t liquid level controller without being fully trained
and qualified in valve, actuator, and accessory installation, operation, and maintenance. To avoid
personal injury or property damage, it is important to carefully read, understand, and follow all of the
contents of this manual, including all safety cautions and warnings. If you have any questions about
these instructions, contact your

Description

The FIELDVUE L2t liquid level controller comes as a package that includes sensor, main housing, and transmitter. The
package is pre-calibrated and can be mounted onto a vessel using the 2 NPT connection.
The rugged L2t liquid level controller use a displacer type sensor (see figure 1) to detect liquid or the interface of two
liquids of different specific gravities.
These controllers use an electrical 4-20 signal to provide applicable control and action. The device delivers an
electrical signal to a control/dump valve.
Unless otherwise noted, all NACE references are to NACE MR0175-2002.

Specifications

Specifications for the Lt2 are shown in table 1 and 2.
WARNING
This product is intended for a specific current range, temperature range and other application specifications. Applying
different current, temperature and other service conditions may result in personal injury, property damage or malfunction
of the product.

Educational Services

Emerson Educational Services
Phone: +1-800-338-8158
E-mail: education@emerson.com
emerson.com/mytraining
2
Emerson sales office before proceeding.
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