SE204 4-Electrode Conductivity Sensor

The Knick SE204 is a 4-electrode conductivity sensor built with a rugged black epoxy body, designed for reliable measurement in liquids with medium to high conductivity. Its four graphite electrodes and integrated NTC temperature detector deliver accurate, temperature-compensated readings across a wide measuring range. Compact dimensions and a minimum immersion depth of just 36 mm make it well suited for water and wastewater treatment applications.

Specifications

Body Length:

120 mm/4.72 in

Body diameter:

15.3 mm/0.60 in

Connecting head material:

POM

Electrodes:

4 graphite electrodes

Isolator:

POM

Measurement Parameter:

Conductivity

Seal:

Viton

Measuring Range:

1 μS/cm ... 500 mS/cm

Temperature:

–5 … 100 °C (23 ... 212 °F)

Temperature Detector:

NTC 30 kΩ

Body Material:

Epoxy, black

Immersion Depth:

Min. 36 mm / 1.42 inches

Pressure:

2 bar (relative)

Cable:

Fixed cable (length: 1.5 m/5.90 ft)

Cell constant:

0.475 cm-1 ± 1.5 %

Resolution:

Dependent on measuring range