Conductivity Sensor utilizes thin film technology..

Press Release Summary:

By measuring voltage drop between 2 current electrodes sensor determines conductivity of substance. Operating temperature range is 0 to +90°C, and measurement range for ion concentration in electrolyte is ~5 µS/cm to ~20 mS/cm. Product is comprised of 2 current electrodes, 2 measuring electrodes, and one platinum temperature sensor for compensation. Platinum RTD is located on sensor, directly at point of measurement, to ensure accuracy.

Original Press Release:

New Conductivity Sensor from IST

IST has employed thin film technology to develop a conductivity sensor for measuring the concentration of ions in an electrolyte. By measuring the voltage drop between two current electrodes, the conductivity of a substance can be determined. The operating temperature range of the sensor is 0°C to +90°C, and its measurement range is ~5µS/cm to ~20mS/cm.

Temperature Compensation
The conductivity sensor developed by IST consists of two current electrodes, two measuring electrodes and a platinum temperature sensor for compensation. The sensor has an integrated class B 100W or 1000W temperature sensor. Since the conductivity of an electrolyte depends heavily on the temperature of the medium, it is important to have accurate temperature compensation. The platinum RTD is located on the sensor, directly at the point of measurement to assure accuracy.

Applications in Water Quality
Conductivity sensors have an important application in determining water quality, measuring the concentration of ions found in the water. IST's conductivity sensor is ideal for this application as well as other applications to measure the conductivity of an electrolyte. The sensors are able to measure the conductivity of most electrolytes, excluding those that are volatile to platinum.

Innovative Sensor Technology is an international manufacturer of thin-film sensing devices; RTD temperature sensors, capacitive relative humidity sensors, and thermal mass flow sensors. Established in 1991, IST is an ISO 9001 certified company and is headquartered in Wattwil, Switzerland, with offices in the Czech Republic and USA.

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