FCI FLT93B User Manual

FLT
®
Series FlexSwitch
TM
06EN003401 Rev. C
Fluid Components International LLC iii
Table of Contents
1 GENERAL.....................................................................................................................................................................................................1
Description........................................................................................................................................................................................................................1
Theory of Operation .......................................................................................................................................................................................................... 1
Sensing Element ............................................................................................................................................................................................................... 1
Control Circuit ................................................................................................................................................................................................................... 1
Technical Specifications ...................................................................................................................................................................................................2
2 INSTALLATION ...........................................................................................................................................................................................5
Receiving/Inspection ........................................................................................................................................................................................................5
Packing/Shipping/Returns ................................................................................................................................................................................................ 5
Factory Calibration Note...................................................................................................................................................................................................5
Pre-Installation Procedure ................................................................................................................................................................................................5
Use Standard ESD Precautions .....................................................................................................................................................................................5
Prepare or Verify Sensing Element Location ................................................................................................................................................................. 5
Verify Dimensions .........................................................................................................................................................................................................5
Verify Sensing Element Flow Direction and Placement Orientation (Flow Application) ..............................................................................................5
Verify Sensing Element Flow Direction and Placement Orientation (Level Application) .............................................................................................5
Install the Sensing Element..............................................................................................................................................................................................6
Male NPT Mounting ...................................................................................................................................................................................................... 6
Flange Mounting ...........................................................................................................................................................................................................6
Packing Gland Assembly ...............................................................................................................................................................................................7
In-line NPT Assembly (FLT93L) ......................................................................................................................................................................................7
Sanitary Assembly (FLT93C) ..........................................................................................................................................................................................8
Install and Wire the Enclosure(s) .....................................................................................................................................................................................8
Disconnect Device ......................................................................................................................................................................................................... 8
Minimum Wire Size.......................................................................................................................................................................................................8
Enclosures Covers .........................................................................................................................................................................................................8
Cable and Conduit Entry Devices ..................................................................................................................................................................................9
Enclosure Grounding .....................................................................................................................................................................................................9
Wiring the Local Enclosure Configuration ..................................................................................................................................................................11
Wiring The Remote Enclosure Configuration .............................................................................................................................................................. 12
Locate the Remote Hardware Location.......................................................................................................................................................................12
Wiring Output Signal Terminals .....................................................................................................................................................................................13
Wiring Input Power.........................................................................................................................................................................................................13
3 OPERATION ..............................................................................................................................................................................................17
Factory Default Jumper Configuration ...........................................................................................................................................................................17
Configuration Jumpers ...................................................................................................................................................................................................17
Heater Cut-Off ................................................................................................................................................................................................................17
Alarm Setpoint Adjustments ..........................................................................................................................................................................................18
Numerical Adjustment Versus Adjustment by Observation .......................................................................................................................................18
Numerical Alarm Setpoint Adjustment ..........................................................................................................................................................................19
Air/Gas Flow Applications ..........................................................................................................................................................................................19
Wet/Dry Liquid Level Applications .............................................................................................................................................................................22

FCI FLT93B Specifications

General

Brand	FCI
Model	FLT93B
Category	Measuring Instruments
Language	English