High Conductivity Sensors ISC40/SC42

For applications with high conductivity levels, toroidal and 4-electrode sensors are most suitable because of their high measuring ranges.

The ISC40 and SC42 large bore conductivity sensors are ideal for high conductivity applications. Suitable for any application except for the (ultra) pure water applications, the ISC40 has only one cell factor (constant) and covers nearly the entire measurement range with a range of 1-20,000,000 µS/cm.

If the ISC40 cannot be used, the SC42 large bore sensor is recommended, featuring a 4-electrode design and a range of 20.0-20,000,000 µS/cm. All sensors have a pre-calibrated cell constant and a built-in temperature element for automatic temperature compensation.


  ISC40 ISC40 2 SC42 Large-Bore 2
Model Code ISC40 SC42 Large Bore
Cell Constants NA NA 10.0/cm
Ranges 1-20,000,000 µS/cm 1-20,000,000 µS/cm 20.0-20,000,000 µS/cm
Temperature Element Pt1000 or 30K Thermistor Pt1000 or 30K Thermistor Pt1000
Pressure Rating Up to 20 bar/290 PSIG *Depending on installation* 10 bar/142 PSIG @ 20°C/36°F; 5 bar/71 PSIG @ 100°C/212°F 10 bar/142 PSIG 2 bar/28.5 PSIG
Maximum Temperature -20°C/-4°F to 130°C/266°F -20°C/-4°F to 100°C/212°F 110°C/230°F
Installation Connections Flange; Tri-Clamp; Flow Thru, NPT, Retractable Flange; Tri-Clamp; Flow Thru, NPT, Retractable Requires FD40, FS40 or FF40 Holder
Integral Cable YES YES NO
Materials Of Construction PEEK PFA (Teflon) EPOXY; PVDF (Kynar) PTFE (Teflon)
Design Style Inductive (Toroidal or Electrodeless) Inductive (Toroidal or Electrodeless) 4-Electrode
You can test the ISC converter by simulating a conductivity reading using an ISC40 sensor. You will need: A known working ISC40 sensor. A piece of wire One or two decade box/resistance sources. Connect sensor wires 13-17 to analyzer. ...
With an Ohm meter check the following wires on the ISC40G sensor cable: 11 to 12 (Pt1000 or Thermistor) 13 to 17 – Sensor coil – expect low resistance. If unstable or above 100Ω it is bad. 15 to 16 - Sensor coil – ex...
Instruction Manuals
General Specifications
Technical Information



    Installing the sanitary fitting on an ISC40 sensor. While we strive to provide the most safe and accurate information possible, we are not responsible for any loss or damages resulting from attempting to replicate the acts conducted in this video. Furthermore, we shall not be held liable for use or misuse of information contained in this video.

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