Table Of Contents - FlowLine Switch-Pro LC4 Series Manual

Introduction / Table of Contents
The LC40, LC41 & LC42 Series Controllers are general-purpose level controllers offered in three
configurations for pump and valve control. The LC40 Series features a single 10A SPDT relay output and can
accept one level sensor as an input. The LC41 Series features a single 10A SPDT latching relay output and
can accept one or two level sensor(s) as an input. This package is ideal for the automatic filling or emptying of
a tank. The LC42 Series features both a single 10A SPDT and a single 10A Latching SPDT relay. This
package allows for a three-input system that can perform a automatic operations (fill or empty) and an alarm
operation (high or low). The LC42 series can also be a two-input controller that can perform dual alarms (2-
high, 2-low or 1-high, 1-low). Package either controller series with level switch sensors and fittings.
FEATURES

Fail-Safe relay control of pumps, valves or alarms with a 0.15 to 60 second delay

Polypropylene enclosure can be DIN rail mounted or back panel mounted.

Easy setup with LED indicators for sensor(s), power and relay status.

Invert switch changes relay state from NO to NC without rewiring.

AC powered

TABLE OF CONTENTS

Specifications / Dimensions: ................................................................................................................................. 3
Specifications: ........................................................................................................................................... 3
Dimensions: .............................................................................................................................................. 3
Safety Precautions: ............................................................................................................................................... 5
Make a Fail-Safe System: ......................................................................................................................... 5
Getting Started: ..................................................................................................................................................... 6
Components: ............................................................................................................................................. 6
Features of the Single Input High or Low Alarm Relay: ............................................................................ 7
Features of the Dual Input Automation Fill/Empty Relay: ......................................................................... 8
Guide to Controls: ..................................................................................................................................... 9
Wiring: ................................................................................................................................................................ 10
Connecting Switches to Input Terminals: ................................................................................................ 10
LED Indication: ........................................................................................................................................ 10
Relay and Power Terminals: ................................................................................................................... 11
VAC Power Input Wiring: ........................................................................................................................ 11
Changing from 120 to 240 VAC .............................................................................................................. 11
Installation: .......................................................................................................................................................... 12
Panel DIN Rail Mounting: ........................................................................................................................ 12
Application Exmaples ......................................................................................................................................... 13
Low Level Alarm: .................................................................................................................................... 13
High Level Alarm: .................................................................................................................................... 13
Pump Protection: .................................................................................................................................... 14
Automatic Fill: ......................................................................................................................................... 14
Automatic Empty: .................................................................................................................................... 15
Leak Detection: ....................................................................................................................................... 15
Appendix: ............................................................................................................................................................ 16
Relay Logic: Automatic Filling and Emptying: ......................................................................................... 16
Latch - On vs. Off: .................................................................................................................................. 17
Controller Logic: ...................................................................................................................................... 17
Troubleshooting: ..................................................................................................................................... 18
Testing Relays: ....................................................................................................................................... 18
Warranty: ............................................................................................................................................................ 20
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