Fluid Components International FlexSwitch, FLT93B Series
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FLT93B FlexSwitch

Brand: Fluid Components International LLC (FCI)
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The Fluid Components FLT93B FlexSwitch® represents the first true technological breakthrough in thermal technology in over a decade.

A single instrument, easily field-configured, provides unparalleled accuracy, flexibility and stability for most flow, level and temperature sensing and switching needs.
  • Process Connections: 3/4" Male NPT
  • Adjustable Set Point Range:
    • 0.01-5.0 feet/s, 0-1.5 meters/s for Liquids
    • 0.25-120 feet/s, 0.08-37 meters/s for Air/Gas
  • Insertion 'U' Lengths: 1.2" (3.0 cm), 2" (5.0 cm), 4" (10.1 cm)
  • Input Power: Field Selectable 115 ±15 Vac, 230 ±30 Vac, 50/60 Hz, 21 to 28 Vdc or 18 to 26 Vac, 7 watts max. consumption
  • Operating Pressure (Maximum): 3500 psi, 24000 kPa, 240 bar
  • Temperature Range (Sensor): -40° to 60° C, -40° to 140° F
  • Local Enclosure: Epoxy Powder Coated Aluminum Flameproof, 1" Female NPT Conduit Connection
  • Wetted Materials: 316 Stainless Steel
  • Outputs/Communications:
    • Two SPDT Relays or One DPDT Relay, Analog DC Voltage
  • FM, CSA, ATEX, IEC, IECEx, SIL-2 Rated, CE

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Specifications

Brand

Accuracy

  • Flow Service Gas: ± 0.5 % of Reading or ± 2 sfps [ ± 0,06 NMPS]
  • Flow Service Liquids: ± 0.5 % of Reading or ± 0.04 FPS [ ± 0,012 MPS]
  • Level/Interface Service ± 0.25″ [6.4 mm] with ± 0.125″ [3.2 mm] Repeatability
  • Temperature Service ± 1° C (2° F) with Repeatability of ± 0.6° C (1° F)

Approvals & Certifications

  • ATEX - II 2 G Ex d IIC T6 to T2 -40° to 60° C Gb
  • CSA
  • FM
  • IECEx - Ex d IIC T6 or T5

Communication

  • None

Electrical Connectors

  • 1” NPT Female

Electrical Rating

  • 6 A Resistive at 115 Vac, 220 Vac or 24 Vdc

Electronics - Standard Features

  • Universal AC/DC Supply

Enclosure Finish

  • Epoxy Powder-Coated

Enclosure, Body Material

  • Aluminum

Flange Material

  • 316L Stainless Steel

Input Power

  • AC: 230 Vac (± 30) 50/60 Hz, 14 W, 50 mA - Max.
  • AC: 115 Vac (± 15) 50/60 Hz, 13 W, 100 mA - Max.
  • AC: 24 Vac (18-26 V Vac) 50/60 Hz, 7 W, 230 mA - Max.
  • DC: 24 (21-28 Vdc), 7 W, 230 mA - Max.

Insertion 'U' Length

  • 1.2” (3 cm)
  • 2” (5 cm)
  • 4” (10.1 cm)

Mounting

  • None

NPT Connection

  • 3/4” NPT Male

Operating Pressure - Sensor

  • Maximum

Operating Temperature - Electronics

  • -40° to 60° C (-40° to 140° F)

Operating Temperature - Sensor

  • -40° to 177° C (-40° to 350° F)

Options

  • Factory NIST Flow Calibration Services

Principle of Operation

  • Thermal, Calorimetric

Remote Control & Monitoring Software

  • Not Applicable

Remote Electronics Enclosure & Cover

  • Not Required

Response Time

  • From 3 seconds

Sensor, Probe Style

  • Insertion

Switch Point Range

  • Air & Gas: 0.25 to 120 sfps (0.08 to 37 NMPS) with 0.75 W Heater at Standard Conditions, 21.1° C (70° F), 14.7 psia [1,013 bar (g)]
  • Hydrocarbon-based Liquids: 0.01 to 1.0 FPS (0.003 to 0.3 mps) with 0.75 W Heater
  • Hydrocarbon-based Liquids: 0.01 to 5.0 FPS with (0.003 to 1.5 mps) with 3.0 W Heater
  • Water-based Liquids: 0.01 to 0.5 FPS (0.003 to 0.152 mps) with 0.75 W Heater
  • Water-based Liquids: 0.01 to 3.0 FPS (0.003 to 0.9 mps) with 3.0 W Heater

Switch Type

  • Field Configurable Dual SPDT
  • Field Configurable Single DPDT

Wetted Materials

  • 316 Stainless Steel

  • Pump Protection
  • Cooling Water / Heat Exchangers
  • Drain Line Flow
  • Safety Spray Nozzle Monitoring
  • Oil Well System Testing
  • Relief Valve Monitoring

Documentation

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