SHS-A5 Dew Point Sensor
Description
The humidity sensor SHS-A5 is a combined sensor for detecting the onset of condensation with additional interdigital structure (conductance sensor) for detection of liquid water or condensation. The exponentially rising resistive characteristics in the upper humidity region facilitates simple signal processing and a stable switching behavior on dew formation threshold.
The ceramic substrate can become a thermal contact on the reverse side to sense surface humidity. Through SIL-contacts, the component can be directly mounted on the printed circuit board.
Other models, for example, with connection leads and plug are also available on request.
Features
- Detection of high humidity, dew formation or condensation
- Additional interdigital structure for independent detection of water
- Application range from 0-100% rH, 0-60°C
- Model with SIL-contacts for PC board mounting
Technical Features
| Parameter | Value |
|---|---|
| Measuring Principle: | resistive humidity sensor, additional conductance sensoring structure |
| Humidity Range: | 0-100% relative humidity |
| Temperature Range: | 0 to 60°C |
| Impedance at rH<75%: | less than 20 kOhm |
| Impedance at rH<93%: | less than 100 kOhm |
| Impedance at rH<97%: | greater than 150 kOHM |
| Interdigital structure | Conductance structure, approximately 10 S |
| Max. evaluation voltage: | less than 0.8 Vpp |
| Base substrate size: | Ceramic 6.2 X 7.2 X 0.6 mm |
| Connection: | 3 SIL-contacts RM 2.54 mm X 20 mm |
Applications
- Building instrumentation, cool ceiling controller, air-conditioning
- Moisture protection in switcher panels and electrical equipment
- Monitoring of flat roofs
- Condensation detection in outside directed walls
- Ventilation control in rest rooms
- Leakage monitor for waterproof housings
Data Sheet
Application Notes
