Emerson Fisher L2e, Instruction Manual

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Fisher
™
L2e Electric Level Controller
Contents
Introduction 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Educational Services 2 . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Attaching a Vertical Displacer 5 . . . . . . . . . . . . . . . . . .
Attaching a Horizontal Displacer 5 . . . . . . . . . . . . . . .
Attaching the Sensor to the Vessel 5 . . . . . . . . . . . . .
Electrical Connections 6 . . . . . . . . . . . . . . . . . . . . . . . .
Seal Certification 10 . . . . . . . . . . . . . . . . . . . . . . . .
L2e Initial Setup (Dry Displacer) 11 . . . . . . . . . . . . . . .
L2e Zero and Span Adjustment (Wet Displacer) 11 . .
Principle of Operation 12 . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing the Controller From the Sensor 14 . . . . . .
Installing Sensor Repair Kit (RL2SENSX012) 14 . . . . .
Replacing the Complete Controller
Assembly (RL2E0X00C22) 15 . . . . . . . . . . . . . . . . .
Related Documents 16 . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1. Fisher L2e Electric Level Controller
X0660
Introduction
Scope of Manual
This instruction manual includes installation, adjustment, maintenance, and parts ordering information for the Fisher
L2e electric liquid level controller.
Do not install, operate or maintain an L2e electric 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 the contents of
this manual, including all safety cautions and warnings.
If you have any questions about these
instructions, contact your Emerson sales office before proceeding.
Instruction Manual
D103531X012
L2e Controller
June 2022