Dew-point sensor S217

for compressed air

The Dew Point Sensor S217 provides reliable and long-term stable dew point measurement for demanding industrial applications. Its newly developed sensor element ensures accurate and consistent signal output, even in harsh environments, making it ideal for dew point monitoring in desiccant and refrigerated dryers. The measured value is transmitted through a loop-powered 4–20 mA output, and the sensor parameters—such as analog output range and measuring units—can be easily configured using the service software package. Product Detail The S217-OEM dew point sensor combines compact design, robust housing, and flexible installation options. The device can be directly mounted on dryers via a G ½” thread connection, ensuring easy integration into existing systems. With its stainless-steel filter cap and IP65 protection, the sensor offers excellent durability and resistance to dust, moisture, and condensation. The unit supports 2-wire or 3-wire 4–20 mA outputs, enabling compatibility with a wide range of industrial control systems. Product Features - Compact design, easy to install on dryers or process lines - Wide measuring range down to –80 °C (customizable upon request) - Fast response time, providing quick indication when dew point exceeds the set range - Condensation resistant for reliable measurement stability - Non-corrosive gas compatibility, suitable for compressed air and inert gases Technical parameters Parameter | Description ---|--- Measuring Range | Customizable, –80 °C ~ +20 °C Accuracy | ±1 °C (–5 °C ~ +10 °C); ±2 °C (–50 °C ~ +20 °C); > ±2 °C (other ranges) Pressure Range | –0.1 ~ 5.0 MPa Power Supply | 12 ~30 V DC Measured Gas | Non-corrosive gases Ambient Temperature | –10 °C ~ +50 °C Transport Temperature | –30 °C ~ +70 °C Response Time (t90 @ 4 L/min) | –40 °C → –20 °C: 20 s; 0 °C → –40 °C: 120 s Output Signal | 4–20 mA, 2-wire or 3-wire Cable Connection | M8 connector, 2 m open-end cable, 4-core Housing Material | Connector: Stainless Steel; Body: Aluminum Alloy Protection Class | IP65 Process Connection | G ½” thread (ISO 228/1) Sensor Protection | Stainless-steel filter cap, pore size 1 L/min Key Specifications / Technical Characteristics - Model: S217 - Measuring range: –80 °C ~ +20 °C (customizable) - Accuracy: ±1 °C (–5 °C ~ +10 °C), ±2 °C (–50 °C ~ +20 °C), > ±2 °C (other ranges) - Pressure range: –0.1 ~ 5.0 MPa - Power supply: 12 ~30 V DC - Output: 4–20 mA, 2-wire or 3-wire - Protection: IP65 - Process connection: G ½” thread (ISO 228/1) - Housing: Stainless steel (connector), aluminum alloy (body)