CS40 Sensors

For retractable in-line installations the CS40 Two Electrode Conductivity Sensor comes complete with a 1" isolation ball valve. Insert the sensor directly into the processes up to 250 PSIG.


CS40 Two Electrode Conductivity Sensor

  • Hot Tap insertion sensor
  • Ratings from 100PSIG @ 150oC to 250PSIG @ 205oC
  • Designed for 1 inch Male NPT Ball valve
  • Broad range of cell constants 0.05/0.1/1.0
  • 316 Stainless Electrodes, O-ring options of EPDM (Standard), Viton (Special), Buna-N (Special)

For applications where a sample line is not present the CS40 Two Electrode Sensor provides an easy method to remove and isolate the sensor for cleaning and calibration.

Wetted Material
  • Electrodes: 316 Stainless Steel
  • Insulator: Kel-F PCTEF (std.), PEEK (high temp)
  • Seals: EPDM / Viton / Buna-N
  • Hardware: 316 Stainless Steel

Temperature Compensation
  • PT100 RTD
  • PT1000 RTD
  • 8550 Ohm (Honeywell)

Pressure/Temperature Ratings

Sensor Design Max Pressure / Temperature
Standard Temp  100 PSIG @ (689 kPa) @ 302°F (150°C)
High Temp  250 PSIG @ (1724 kPa) @ 401°F (205°C)


Sensor Technology - How it works

2 Electrode Tech

Two electrode conductivity measurement is based on the ability to conduct a current between two electrodes. The concentration of ions in the liquid are directly proportional to the conductance of the liquid.

Pros Cons
  • Simple, time-proven electrode design
  • Industry standard cell constants determine measurement range
  • Works best for clean applications where electrodes do not get fouled
  • High accuracy and repeatability
  • Susceptible to coating and scale (no compensation)
  • Susceptible to corrosion
  • No diagnostics


Conductivity Chart