Multi-funtional duct sensor
For humidity, temperature, pressure, differential pressure and volume flow for monitoring and controlling heating, ventilation and air-conditioning systemsPREMASGARD® 814x-Modbus
Für jede Anwendung die richtige Lösung [Translate]
The calibratable pendulum humidity sensor HYGRASGARD® RPFF - SD, with plastic sinter filter measures the relative humidity of the air. It converts the measurands humidity into a standard signal of 4...20 mA. Relative humidity (in % r. H.) is the quotient of water vapour partial pressure divided by the saturation vapour pressure at the respective gas temperature.
It is used in non-aggressive, dust-free environments, in the refrigeration, air conditioning and clean room technology, hotels, engineering rooms, meeting and conference facilities. These measuring transducers are designed for exact detection of humidity. A digital long-term stable sensor is used as measuring element for humidity measurement. The sensor is suitable for duct installation, as a pendulum sensor, or for integration in equipment.
15...36 V DC
depending on working resistance, residual ripple stabilised ± 0.3 V
|Power consumption||< 1.1 VA/ 24 V DC|
Ra (Ohm) = (Ub -14 V)/ 0.03 A
Ra < 500 Ohm
digital humidity sensor
small hysteresis, high long-term stability
|Measuring range, humidity||
0...100 % r. H.
(output corresponding to 4...20 mA)
|Operating range, humidity||0...95 % r. H. (without dew formation)|
|Deviation of humidity||typical ± 2 % r. H. (20…80 % r. H. ); at + 25 °C, otherwise ± 3 %|
plastic sinter filter, Ø 16 mm, L = 35 mm, exchangeable
(optional metal sinter filter, Ø 16 mm, L = 32 mm)
storage –25...+50 °C,
operation –5...+55 °C
|Protective tube||stainless steelV2A (1.4301), Ø = 16 mm, L = 142 mm|
0.14 - 1.5 mm²
PVC, LiYY, 2 x 0.25 mm2,
KL = approx. 1.5 m (other lengths optional)
|Long-term stability||± 1 %/ year|
|Protection class||III (according to EN 60 730)|
|Protection type||IP 65 (according to EN 60 529)|
according to EMC directive 2014/ 30/ EU,
according to EN 61326-1, according to EN 61326-2-3
|MF-16-K||Mounting flange, plastic||7100-0030-0000-000||8,06 €|
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