Fluid Components International FLT Series User Manual
Page 5
FLUID COMPONENTS INTL
FLTÔ Series FlexSwitchÔ
viii
Doc. No. 06EN003246 Rev. B
Contents
1. General Information
Description ........................................................................................................................... 1 - 1
Theory of Operation ............................................................................................................. 1 - 1
Sensing Element .................................................................................................................. 1 - 1
Control Circuit ..................................................................................................................... 1 - 1
Technical Specifications ...................................................................................................... 1 - 2
2. Installation
Receiving/Inspection ............................................................................................................ 2 - 1
Packing/Shipping/Returns ................................................................................................... 2 - 1
Factory Calibration Note ...................................................................................................... 2 - 1
Pre-Installation Procedure ................................................................................................... 2 - 1
Use Standard ESD Precautions .................................................................................... 2 - 1
Prepare or Verify Sensing Element Location ............................................................... 2 - 2
Verify Dimensions ........................................................................................................ 2 - 2
Verify Sensing Element Flow Direction and Placement Orientation (Flow) ............. 2 - 2
Verify Sensing Element Flow Direction and Placement Orientation (Level) ............ 2 - 2
Install the Sensing Element ................................................................................................. 2 - 2
Male NPT Mounting ..................................................................................................... 2 - 2
Flange Mounting ........................................................................................................... 2 - 3
Packing Gland Assembly .............................................................................................. 2 - 3
In-Line NPT Assembly ................................................................................................. 2 - 3
Sanitary Assembly ........................................................................................................ 2 - 4
Install and Wire the Enclosure ............................................................................................ 2 - 4
Minimum Wire Size ..................................................................................................... 2 - 4
Wiring the Local Enclosure .......................................................................................... 2 - 5
Wiring at the Remote Enclosure .................................................................................. 2 - 6
Locate the Remote Hardware Location ........................................................................ 2 - 6
Wiring Remote Enclosure with Auxiliary Relay .......................................................... 2 - 7
Wiring a Remote Control Circuit To A Auxiliary Relay Board .................................. 2 - 8
Wiring Output Signal Terminals ......................................................................................... 2 - 8
3. Operation
Factory Default Jumper Configuration ................................................................................ 3 - 1
Configuration Jumpers ......................................................................................................... 3 - 1
Heater Cut-Off ...................................................................................................................... 3 - 1
Alarm Set Point Adjustment ................................................................................................ 3 - 2
Numerical Adjustment Versus Adjustment by Observation ........................................ 3 - 2
Numerical Set Point Adjustment ......................................................................................... 3 - 3
Air/Gas Flow Applications ........................................................................................... 3 - 4
Wet/Dry Liquid Level Applications ............................................................................. 3 - 7
Temperature Applications ............................................................................................ 3 - 8
Liquid Flow Applications ............................................................................................. 3 - 10
Adjustment by Observation .................................................................................................. 3 - 12
Flow Applications ......................................................................................................... 3 - 12
Level Applications ........................................................................................................ 3 - 12
Temperature Applications ............................................................................................ 3 - 13
Converting Temp Out Voltage to Temp in Degrees F ................................................. 3 - 19
Fail Safe Alarm Setting ....................................................................................................... 3 - 20
Low Flow Alarm Setting .............................................................................................. 3 - 20
High Flow Alarm Setting ............................................................................................. 2 - 20
Low Level Alarm Setting ............................................................................................. 3 - 20
High Level Alarm Setting ............................................................................................. 2 - 20
4. Maintenance
Maintenance ......................................................................................................................... 4 - 1
Calibration .................................................................................................................... 4 - 1
Electrical Connections .................................................................................................. 4 - 1