FLT93C Flow Switch

Flow Switch Summary

The FLT93C insertion and inline type FlexSwitches for sanitary flow, level and temperature monitoring represents the first true technological breakthrough in thermal technology in over a decade. This product is specifically designed for sanitary 3A process applications. FCI is the only thermal manufacturer providing temperature compensation to ensure set point accuracy for process temperatures that vary up to ± 100° F. The FLT93C is easily field-configured or factory preset, providing unparalleled flexibility, accuracy and stability for all multiple process sensing and switching requirements.

For an operational demonstration of FCI's FLT93 FlexSwitch Series, please follow this link.

Applications

  • Pump protection
  • Gas/Steam Injection Monitoring
  • Syrup Flow Monitoring
  • Level Interface
  • Additive Verification
  • Analyzer Flow Monitoring
  • Low Flow Detection

Specifications

For Flow Service - Setpoint Range:
  • Water-based Liquids:
0.01 to 3.0 fps [0.003 to 0.9 mps]
  • Hydrocarbon-based Liquids:
0.01 to 5.0 fps [0.003 to 1.5 mps]
  • Air/Gas:
0.25 to 120 sfps [0.08 to 37 smps] at standard conditions of 70° F [21.1° C] and 14.7 psia [1.013 bar(g)].

Accuracy: (whichever reading is higher)
  • Liquids: ± 0.5% reading or ± 0.04 fps [± 0.012 mps]
  • Gases: ± 0.5% reading or ± 2 sfps [± 0.06 nmps]

For Temperature Service:
  • Accuracy: ± 2° F [±1° C]
  • Repeatability: ± 1° F [± 0.6° C]

Response Time: As low as 3 seconds.

Enclosure: NEMA 4X/IP66 Rated. Standard: Polyester power coated aluminum, with 1" NPT conduit
port. Optional: Stainless steel. Optional: 2 conduit port, aluminum.

Compliances and Agency Approvals: FM, FMc, ATEX, IECEx, GOST-R, Inmetro. CE mark. PED, CRN.
Meets EC directives for EMC and LVD. Probe complies with Canadian Electrical code requirements of ANSI/ISA 12.27.01-2011 as a single seal device.
 
FM/FMc: XP, Class 1, Div. 1 Groups B,C,D
DIP, Class II/III, Div. 1, Groups E,F,G
T4, Ta = 60°C, T3A, Ta = 60°
ATEX: II 2 G Ex d IIC T6...T2 -40°C to 60°C Gb
IECEx: Ex d IIC T6 or T5
Tamb (housing) = -40° to +40°C, T6
Tamb (housing) = -40° to +60°C, T5
Tp (sensing element) = -40° to 77°C, T4
Tp (sensing element) = -40° to 177°C, T2
Optional N.I.S.T. Flow Calibration Services
Factory N.I.S.T. calibration in air or water is available as an option for customer specified setpoint(s) or a flow curve based on the media ranges specified above.


Flow Element

Materials of Construction: All welded 316L stainless steel electro-polished to 20 Ra for all wetted surfaces.  

Process Connection: Sanitary flange
Insertion Length and Short Leg Tee Size
  • 1.17 inch [35 mm] for 0.75 inch Tee 
  • 1.25 inch [32 mm] for 1 inch Tee
  • 1.93 inch [49 mm] for 1.5 to 2 inch Tee
  • 2.75 inch [70 mm] for 3 to 4 inch Tee

Customer specified lengths are available as an option.

Operating Temperature:
  • Standard: -4° to +350° F  [-20° to +177° C]
  • Optional: -100° to +500° F  [-73° to +260° C]

  • Operating Pressure: To 2000 psig  [138 bar(g)]


Control Circuit

Operating Temperature: -4° to +140° F [-20° to +60° C]

Universal AC/DC supply. Input terminals and jumpers on circut board select specific power.
 
AC 108-132V 13W, 100mA max.
AC 207-253V* 14W, 50mA max.
AC 18-28V 7W, 230mA max.
DC 21-30V 7W, 230mA max.
* AC mains preset by factory: FM & FMc as 108-132 Vac; All others as 207-240 Vac 

Relay Contacts: Field configurable dual SPDT or single DPDT rated 6 amps at 115 Vac, 240 Vac or 24 Vdc. Hermetically sealed relays are available as an option.

Output Signal: Analog DC voltage related to flow or level/interface signal and proportional to temperature.

Electrical Connection: 1 inch female NPT 

Remote Configuration: Available as an option with customer specified interconnecting cable length.

Certification/Approvals

ATEXCECRNFM ApprovedEACIECExInmetroSIL