HYT 939 – the specialist for compressed air The welded, hermetically sealed TO 39 housing with glass grommet and sinter filter is designed for compressed air systems up to 16 bar.
Due to the humidity calibration process and special polynomial correction method, a high accuracy (± 0.1% rH) is achieved specially in the lower humidity region up to 50 ppm water content, because of which the sensor is suitable for dew point measurements up to -40°C dp, for example, for the quality evaluation of medical compressed air.
Precisely calibrated, the HYT 939 delivers an accuracy of ±1.8 % rH and ±0.2 °C in the remaining ranges. The integrated signal processing for measurement of physical parameters of relative humidity and temperature, I2C compatible interface, interchangeability without adjustment as well as mechanical robustness, chemical stability, dew formation resistance and long term stability are the further features.
Both the linearity error and temperature drift are corrected “OnChip” through computation.
Because of the specially robust construction, the sensor also withstands peak loading at high temperatures. Therefore, this special model is also ideal for extremely sophisticated industrial applications in drying systems and suitable for medical systems.
- Measuring range 0 .. 100 % rH, -40 … 125 °C
- Accuracy ±1.8% rH, Temperature ±0.2 °C in the range 0...10% rH ±(0.1% rH + 17% aw)
- Resistant to pressure up to 16 bar
- Precisely calibrated and temperature compensated
- Chemical resistant, dew formation resistant
- Sealed TO 39 housing with glass grommet and Sinter filter
- Low Hysteresis, compensated Linearity error and Temperature drift
- Operating voltage 2.7 … 5.5V
- I2C, address 0x28 or alternative address
- RoHS conformance
- Dimensions 5.2 x 9 mm
| RH Measurement Range |
0 to 100% |
