Conductivity sensor

Innovative Sensor Technology IST AG has combined thin- and thick-film technologies to develop ceramic-based conductivity sensors that include a resistive temperature sensor (Pt1000 IEC 60751 F0.3), thus allowing for accurate compensation at the point of measurement.  The conductivity sensor consists of two current electrodes and two measuring electrodes. This basic design can be adjusted to specific applications and requirements. 

LFS1305

The IST AG LFS1305 conductivity sensor offers a typical cell constant of 0.86 cm^-1 and a conductivity measuring range from 100 μS/cm to 200 mS/cm within an operating temperature range of -30 °C to +100 °C. However, it easily withstands temperatures over 130 °C enabling processes like sterilization by autoclaving.

The IST AG LFS1305 conductivity sensor is available with Pt/Ni wires as standard wires.

LFS1505

The IST AG LFS1505 conductivity sensor offers a typical cell constant of 0.68 cm-1 and a conductivity measuring range from 100 μS/cm to 200 mS/cm (extended range from 10 μS/cm to 200 mS/cm possible with cell-constant correction) within an operating temperature range of -30 °C to +100 °C. However, it easily withstands temperatures over 130 °C enabling processes like sterilization by autoclaving.

The IST AG LFS1505 conductivity sensor is available with either Pt/Ni wires, Cu/Ag wires or PTFE insulated AWG 30 as standard wires.

 LFS1710 

The IST AG LFS1710 conductivity sensor offers a typical cell constant of 0.44 cm^-1 and a conductivity measuring range from 0.2 mS/cm to 200 mS/cm within an operating temperature range of -30 °C to +100 °C. However, it easily withstands temperatures over 130 °C enabling processes like sterilization by autoclaving.

The IST AG LFS1710 conductivity sensor is available with either Pt/Ni wires, Cu/Ag wires or PTFE insulated AWG 30 as standard wires.

Advantages of the IST AG thin film conductivity sensors

• Wide conductivity and temperature range
• Fast response time
• Optimal accuracy
• Resistance to various chemicals¹⁾
• Excellent long-term stability
• Integrated RTD for temperature compensation
• Four electrode measurement²⁾
• Customer specific sensor available upon request

 Applications in Water Quality 

Conductivity sensors play an important role in determining water quality, and are able to measure the conductivity of most liquid solutions. The IST conductivity sensors are an ideal choice for water quality and waste water treatment applications, as well as medical and agricultural applications.

Conductivity Sensor Data Sheets (.pdf)

Application Services

Need some help with your application developement? Our technical team can offer you consulting, development, and production assistance for your project.

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Innovative Sensor Technology IST USA Division is a fully owned subsidiary of Innovative Sensor Technology IST AG, based in Switzerland. We are a world-class manufacturer of thin-film platinum and nickel RTD temperature sensors, capacitive humidity sensors, mass flow sensors, conductivity sensors and bio sensors at the component level.

With our state-of-the-art manufacturing technology, we offer both standard and custom sensors to satisfy various applications. Our sensors cover requirements for system integrators in the process control, building automation, test & measurement, medical, automotive, and appliance industries.

IST USA Division offers high flexibility in sourcing and supporting our products. We offer in-house stock and on-site engineering support, which is available during our regular business hours for design, application, and after sales support.

Products:

IST produces five types of thin film measurement technology:  RTD temperature sensors, capacitive relative humidity sensors, mass flow sensors and conductivity.  Manufactured at the component level, these elements are available with a diverse range of standard and custom features. 

• Temperature
• Humidity
• Flow
• Conductivity
• Biosensors

The available and ever expanding IST portfolio satisfies the growing application possibilities across multiple industries.

Our wide product range is the choice of many renowned end customers and OEMs in these fields. As a result, our sensors are found in measuring instruments for various applications such as process control, HVAC and building automation, test and measurement, medical, automotive, and appliance. While our products are widely used in these industries, they are by no means limited to them.

• Process Control
• Building Automation
• Test & Measurement
• Medical
• Auto
• Appliance

For your convenience, we have included resources such as technical information, data sheets, application notes, and performance data for our sensors.  If you have any questions regarding our products and their applications, please do not hesitate to contact us.  We have engineers available to support you with all of your technical inquiries.

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