RPFF-SD-I

HYGRASGARD® RPFF-SD-I

Item No. 1201-1172-0000-150
EAN 4 251325 610115

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.

131,69 € net
Voltage supply 15...36 V DC
depending on working resistance, residual ripple stabilised ± 0.3 V
Power consumption < 1.1 VA/ 24 V DC
Working resistance Ra (Ohm) = (Ub -14 V)/ 0.03 A
Ra < 500 Ohm
Sensors 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 %
Output 4...20 mA
Sensor protection plastic sinter filter, Ø 16 mm, L = 35 mm, exchangeable
(optional metal sinter filter, Ø 16 mm, L = 32 mm)
Ambient temperature storage –25...+50 °C,
operation –5...+55 °C
Protective tube stainless steelV2A (1.4301), Ø = 16 mm, L = 142 mm
Electrical connection 2-wire Connection,
0.14 - 1.5 mm²
Connection cable 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)
Standards CE conformity,
according to EMC directive 2014/ 30/ EU,
according to EN 61326-1, according to EN 61326-2-3
Type Item No. Price
MF-16-K Mounting flange, plastic 7100-0030-0000-000 8,06 €