Flowline LC30 Thermo-Flo - Manual (Page 2)

2 of 14 LC900008 Rev A
INTRODUCTION / TABLE OF CONTENTS Step One
The LC30 Series Controllers are general‐purpose flow controller that accepts one flow sensor input and
provides one 16A relay for low‐flow pump or process protection. This package has an optional flashing alarm
and is ideal for alarm indication. Package this flow controller with our liquid or gas flow switch sensors.
Features
 Fail‐Safe relay control of pumps, valves or alarms with a 0 to 60 second delay
 Optional flashing alarm brings immediate attention to level alarm conditions.
 Polypropylene enclosure rated NEMA 4X with swivel base for conduit alignment.
 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: ......................................................................................................................................................... 3
Dimensions:............................................................................................................................................................. 3
Safety Precautions: ................................................................................................................................................. 4
Make a Fail‐Safe System: ............................................................................................................................ 5
Components: ............................................................................................................................................... 5
Getting Started: ....................................................................................................................................................... 6
Guide to Controls: ....................................................................................................................................... 6
Electrical .................................................................................................................................................................. 7
Connecting Switches to Input Terminals: ................................................................................................... 7
VAC Power Input Wiring: ............................................................................................................................ 7
Relay Input Wiring: ..................................................................................................................................... 7
Strobe Alert Output: ................................................................................................................................... 8
Changing from 120 to 240 VAC ................................................................................................................... 8
Installation .............................................................................................................................................................. 9
Mounting on a Sensor: ................................................................................................................................ 9
Application Examples ............................................................................................................................................ 11
Low Flow Alarm:........................................................................................................................................ 11
LED Indication: .......................................................................................................................................... 11
Flow Switch Calibration: ....................................................................................................................................... 12
Set Points: ................................................................................................................................................. 12
Accessing the Adjustment Potentiometer: ............................................................................................... 12
Appendix ............................................................................................................................................................... 13
Controller Logic ......................................................................................................................................... 13
Troubleshooting ........................................................................................................................................ 13
Warranty ............................................................................................................................................................... 14