The FAS-SW moisture transducer is an aluminum oxide sorption-type humidity sensor designed to measure the water dew point over a wide temperature range at operating pressures up to 300bar.
Measured humidity values can be transmitted to the upper level by analogue output currents between 4 and 20mA.
The FAS-SW is designed for the measurement of moisture in inert and aggressive gases, including hydrogen-containing gases.
It can be used in technological processes associated with natural gas processing, metallurgy, mechanical engineering, the chemical and petrochemical industries, microelectronics, the power industry, and where an aluminum oxide sorption-type dew point sensor is preferable to a condensation hygrometer.
Wide temperature range for dew point measurement
Calibration in the temperature range down to -100 °С without approximates, and at operating pressures up to 300bar.
Rapid response time during measurement of trace moisture in the range from -60 to -100 °С (with the use of a special sorbent)
Wide temperature compensation range
Explosion protection classification 1 Ex ib IIC T6 Gb
Range of dew point temperature measurement, °С
Dew point temperature measurement range (metrological), °С
Dew point temperature absolute measurement error, °С, max.
In the range
between -70 °С and +20 °С
In the range
from -100 °С through -70 °С
Specified error of the measured value transformed into the output signal 4 to 20 mA, %, max.
Operating pressure of the tested gas,
Sample gas supply flow rate, L/min
from 0.5 to 5
Gas temperature, °C
between – 20 and +60
Explosion protection labelling
1Ex ib IIC T6 Gb
4 – 20 mA
Power supply voltage, VDC
from 20 to 27
Power consumption, W, max.
Transducer housing protection level
- ambient temperature, ºC
from – 40 up to +50
Dimensions (height × width × depth), mm, max
Weight, kg, max (complete with measurement chamber)