Dew point sensor
The FAS-SW is a sorption-type, aluminum oxide sensor designed to measure the water dew point over a wide temperature range at an operating pressure of up to 300 bar. Measurement results are then transmitted to the upper level via 4 … 20mA analog output.
Application
The FAS-SW is designed to measure the water dew point in inert and aggressive gases, including those containing hydrogen. It can be used for a wide variety of applications, where the use of a sorption-type aluminum-oxide sensor is preferred to a condensation hygrometer. Areas of application include technological processes in the chemical and petrochemical industries, natural gas processing, and metallurgy. The FAS-SW is equally well-suited for applications in mechanical engineering, microelectronics, and the energy industry.
Features
- Wide measurement range
- Calibration range down to -100 °C without approximation, at pressures of <= 300 bar.
- Quick response time when measuring trace moisture in the range -60 … -100 °C (using a special sorbent)
- Temperature compensation over a wide temperature range
Technical specifications
| Measurement range, °C | -100 … +20 |
| Measurement range (metrological), °C | Range I: -70 … +20 Range II: -100 … +20 |
| Accuracy, °C | Range -70 °c … +20 °C : ±2.0 Range -100 °C … -70 °C : ±3.0 |
| Operating pressure, max, bar | 300 |
| Sample gas flow rate, NI/min | 0.5 … 5 |
| Sample probe temperature, °C | -40 … +60 |
| Data Interface | 4 … 20 MA |
| Power supply, VDC | 20 … 27 |
| Power consumption, W, max | 0.5 |
| IP degree of protection | IP66/67 |
| Explosion protection rating | 1 Ex ib IIC T6 Gb |
| Operating requirement: Ambient temperature, °C | -40 … +70 |
| Dimensions, mm | 120x30x30 |
| Weight, kg, max. (including measurement chamber) | 0.2 |