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Contacting Conductivity Sensors SC42/SC4A(J)

Contacting Conductivity Sensors SC42/SC4A(J)

The Yokogawa SC42/SC4A(J) are contact line sensors that offer high accuracy and flexibility for measuring conductivity in a variety of applications, including water quality and concentration monitoring in processes. The sensors are designed to minimise maintenance and maximise measurement accuracy.

The SC42/SC4A(J) sensors are designed to provide high quality conductivity measurement in applications that require accuracy and durability. Using a 2-electrode design, the sensors measure conductivity by applying an alternating current and measuring the resulting voltage. The design is optimised to minimise polarisation and cable resistance, providing reliable results even in difficult conditions.

The SC42 series includes both large and small bore sensors with cell constants from 0.01/cm to 1.0/cm to cover a wide measurement range. The SC4A(J) offers additional versatility with various installation options, including tri-clamp connections and submersible options. The stainless steel or titanium material ensures durability and long life.

With built-in temperature compensation and Pt1000 elements, the sensors ensure stable and accurate measurements over a wide temperature range.

Features and benefits

  • Wide measurement range: Adapted for applications from pure water to concentrated solutions.
  • Material construction: Made of stainless steel or titanium for corrosion resistance and durability.
  • Temperature tolerance: Withstands temperatures up to 150°C depending on the model.
  • Flexible installation options: Adaptable with tri-clamp, NPT connections or retractors.
  • Resistance to high pressure: Pressure rating up to 10 bar.
  • Accurate temperature measurement: Integrated Pt1000 element for improved temperature compensation.
  • Low level of maintenance: Designed to minimise polarisation and contamination.

Applications

  • Water quality: Monitoring of clean water and demineralised water.
  • Industrial processes: Measurement of concentrations in acids and bases.
  • Steam system: Conductivity measurement in boiler water and condensate.
  • The food industry: Process control in different applications.

Specifications

Parameter SC42 Large Bore SC4A(J) SC42 Small Bore
Cell constants 0.01/cm, 0.1/cm, 1.0/cm 0.02/cm, 0.1/cm 0.02/cm, 0.1/cm, 1.0/cm
Measuring range (wire) 0.02-200,000 µS/cm 0.04-400 µS/cm 0.04-5,000 µS/cm
Temperature range Up to 150 °C Up to 110 °C Up to 100 °C
Pressure classification Up to 10 bar Up to 10 bar Up to 7 bar
material Stainless steel Stainless steel or titanium Stainless steel or titanium
Installation Requires FD40/FS40/FF40 holder Tri-clamp or NPT Tri-clamp or NPT
Temperature compensation Pt1000 Pt1000 Pt1000

Teknisk information

Conductivity Analyzer Selection Guide

Teknisk information

Contacting Conductivity sensor selection guide

Specification

Model SC4A Conductivity Sensors and Fittings for 2-electrode Systems

Specification

Model WU40 Sensor cables

Specification

Model SC42 2/4-electrode design for Contacting Conductivity

Specification

Model SC42 and FF40/FS40/FD40 2/4-electrode design for Conductivity Flow fittings, Subassemblies and Immersion fittings

Manual

Model PR10 Manual Retractable Fitting

Manual

Model SC41, SC42 and SC49 2/4-electrode Specific Conductivity Sensors

Manual

Model SC4A Conductivity Sensors 19mm 2-electrode

Brand

Yokogawa

Yokogawa is a global player offering advanced measurement and analysis solutions in pressure, flow measurement, liquid and gas analysis. Their products combine high performance with reliability, supporting efficient and safe operation in various industrial applications.

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