SI7015-A20-FM Sensors, Transducers

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Humidity and moisture sensors play a critical role in developing reliable products and efficient operations, or in process control and energy savings. In this area, the SI7015-A20-FM sensor stands out as a dependable and accurate piece of equipment.

The SI7015-A20-FM is a digital relative humidity and temperature sensor designed for the easy integration into HVAC and environment monitoring applications. By using a sophisticated element and an innovative transmission technique, this sensor ensures high accuracy, stability, and long-term reliability.

The sensor is featured with an automated temperature compensation and a special temperature compensation algorithm to enhance long-term stability. This device also comes with a temperature drift detection feature, which allows for more precise dynamic compensation. With a small size of only 8mmx8mm, the SI7015-A20-FM can be used on a wide variety of applications such as air conditioning, energy savings, process control, and quality assurance.

The working principle behind the SI7015-A20-FM is actually quite simple. The device has two separate elements, an electrochemical resistive-type humidity sensor and a thermistor element. Both elements are sealed in a single housing with a hermetic seal and the output of the device is provided by a 4-20mA (current mode) analog output. The humidity sensor element operates on the principle of evaporation of a thin film of moisture on the sensing element. The resistance of the sensing element changes linearly with the relative humidity in the atmosphere.

The thermistor sensor measures the temperature externally, and this analog reading is then compared to an internal reference temperature. The output of the device is then based on the relative humidity in the atmosphere and is also compensated for any change in the temperature.

The SI7015-A20-FM is an ideal choice for HVAC and various other applications, thanks to its ease of use, accuracy, and extremely affordable price. The device comes with an integrated temperature compensation algorithm and temperature drift detection feature for more precise dynamic compensation. Additionally, this piece of equipment offers excellent long-term stability and reliability for smooth and efficient operations.

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