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FCI FLT93L - User Manual

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FLT
®
93 Series FlexSwitch
™
Flow, Level, Temperature Switch / Monitor
Models: FLT93B, FLT93C, FLT93F,
FLT93L, FLT93S
Installation, Operation
& Maintenance Manual
Installation, Betrieb und Wartungshandbuch
Manual de Instalación, Operación y Mantenimiento
安装、操作和维护手册
Fluid Components International LLC (FCI). All rights reserved.
Doc. No. 06EN003401

Table of Contents

Other manuals for FCI FLT93L

Preview: Installation, Operation, Maintenance And Troubleshooting
Installation, Operation, Maintenance And Troubleshooting12 pages

Questions and Answers

  • A
    Anthony NealAug 8, 2025
    Why is the LED blinking on my FCI Switch?
    • R
      Randall HeathAug 8, 2025
      If the LED on your FCI Switch is blinking in liquid flow applications, ensure that the pipe is full. For gas flow or liquid level applications where the LED is blinking, the heater power may be set too high. Try setting it to a lower value by moving the heater jumper. In some cases, you may need to set the heater power to the maximum value to achieve the maximum signal difference between the two liquids.
  • W
    william71Aug 14, 2025
    How to fix an FCI Switch when the LED is always ON?
    • K
      Kevin SmithAug 14, 2025
      If the LED is ON, it might be because the instrument is being supplied with 115 Vac, but the Input Power Jumper Configuration is set to 220 Vac. Remove the control circuit, set the jumpers correctly, reinstall the control circuit, and then restart the system.
  • K
    Kristen MillerAug 21, 2025
    What to do if the remote cable is damaged on my FCI Switch?
    • A
      Ashley BushAug 21, 2025
      If you have a remote installation and the remote cable is incorrectly wired or damaged, repair it and restart the system.
  • S
    Sabrina BarnettAug 27, 2025
    What to do if the voltage is out of tolerance on my FCI Switch?
    • M
      Monica WalkerAug 27, 2025
      If the serial numbers on the control board and the sensing element do not match, this can cause the voltage to be out of tolerance. If the serial numbers are correct, contact FCI Field Service.
  • B
    Brittany SmithSep 1, 2025
    How to troubleshoot an FCI Switch when the LED is OFF?
    • K
      Kathryn BradshawSep 1, 2025
      Remove the control circuit, set the jumpers correctly, and verify the input power. Reinstall the control circuit, restart the system, and check for proper operation.

Summary

GENERAL

Technical Specifications

INSTALLATION

Sensing Element Installation

Enclosure Installation and Wiring

Wiring Input Power and Signals

OPERATION

Alarm Setpoint Adjustments

Procedures for setting alarm points using numerical or observational methods.

Application-Specific Setpoint Adjustments

Detailed steps for setting alarms for various applications like flow, level, and temperature.

Fail-Safe Alarm Settings

Configuration for setting up the second relay for component failure detection.

MAINTENANCE

Calibration

Instructions for verifying and recalibrating the instrument's output.

Sensing Element Assembly

TROUBLESHOOTING

Quick Check

Initial checks for common issues before in-depth troubleshooting.

Troubleshooting the Flow Element

Steps to diagnose issues with the flow element using resistance readings.

Troubleshooting the Control Circuit

Procedures for diagnosing issues related to the control circuit and indicators.

APPENDIX C APPROVAL INFORMATION

Safety Instructions for Hazardous Areas

Critical safety instructions for use in potentially explosive atmospheres.

APPENDIX D TEMPERATURE COMPENSATION

Restoring Temp Comp Adjustments

Field Temp Comp Calibration

FCI FLT93L Specifications

General IconGeneral
BrandFCI
ModelFLT93L
CategoryMeasuring Instruments
LanguageEnglish

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