Capacitive level sensor series 351

Capacitive level sensor series 351

The capacitive level probe, series 451, is specially designed to transmit liquid level and work in demanding process conditions, high temperature and pressure.

It measures and transmits level by generating a 4/20 mA signal through a 3-wire loop in tanks and boilers.

  • Operating principle: Capacitive
  • Probe body: Stainless steel AISI 303
  • Connection: ½" BSP thread
  • Electrical connection: According to DIN 43650-A with cable gland PG11
  • Electrode: Coated stainless steel
  • Coating: PTFE 12 mm Ø
  • Temperature: 220ºC at electrode
  • Maximum pressure: 22 bar
  • Weight: 1000 gr (length 500 mm)
  • Power supply: 24V dc +/- 10%
  • Power consumption: 0.9 VA
  • Output: 4 - 20 mA (calibrated, with 3" delay) Rmax = 250 Ω
  • Accuracy: 0.5 % s.f. Calibration at 25ºC
  • End cap: 25 mm length non-sensitive at probe end
  • Medium: Water and compatible liquids
  • Conductivity: ≥ 5μS/cm
  • Available lengths: 500 mm and 1000 mm