FineTek SA Capacitance Solid Level Switch

FineTek SA Series Capacitance Solid Level Switch

Few point-level sensors handle as broad a range of materials as the FineTek SA Series capacitance level switch, which detects liquids and solids alike — pastes, syrups, powders, granules, flakes, and chips — in a single rugged design suited to almost any industry.

How It Works

Capacitance switches work because every medium can store electrical energy to some degree. Two separated conductive plates form a capacitor, and whatever sits between them determines the stored charge. Since conductivity and dielectric constant vary by material, the switch detects the resulting capacitance change as soon as material surrounds the probe, and actuates its output accordingly.

Key Features

  • Suitable for liquids, pastes, powders, granules, flakes, and chips
  • Performs best in conductive media or materials with a reasonably high dielectric constant
  • Rugged industrial build for demanding environments
  • No moving parts — low maintenance operation

Applications

  • High and low level alarm in silos, hoppers, and bins
  • Point level detection in process tanks
  • Plugged chute and overfill detection

Industries Served

  • Chemical and plastics
  • Food and beverage
  • Cement and building materials
  • Water and wastewater
ApplicationLevel detection of liquids, solids, pastes, and powders in tanks/silos
Detecting MaterialLiquids, pastes, syrups, powders, granules, flakes, chips, conductive solutions
Operating PrincipleCapacitance sensing; no moving parts; suited to high dielectric constant media
Sensitivity10pF (rotary knob adjustable); 10/20/40pF adjustable range on some models
Output Signal / Relay RatingRelay SPDT 5A/250Vac/30Vdc; NPN 100mA transistor output (standard)
Power Supply100-240Vac or 19-24Vdc (standard)
Power Consumption2W
Operating TemperatureStandard: ambient -20°C to 80°C, process -20°C to 60°C; Hi-Temp: up to 200°C
Process PressureUp to 20 kg/cm² or 220 kg/cm², depending on flange/connection type
Protection RatingIP65 (aluminum housing)
Housing MaterialADC-12 aluminum
Probe MaterialSUS304 or SUS316 stainless steel
Insulation MaterialUPE, PTFE, or PEEK
Process Connection1″PT (default), 3/4″PT (optional)
CertificationNEPSI Ex d/ia IIC T3-T6 (explosion-proof); Ex ia IIC T3/T4 Ga (intrinsically safe)

Download FineTek SA Capacitance Solid Level Switch information here

Datasheet: Finetek_SA-Capacitance-Level-Switch_B0
Manual:

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