RPFF-25-U

HYGRASGARD® RPFF-25-U

Item No. 1201-7121-0000-100
EAN 4 251325 611358

The calibratable pendulum room humidity and temperature sensor HYGRASGARD®RPFF - 25⁄RPFTF - 25, with metal sinter filter measures the relative humidity and the temperature of the air. It converts the measurands humidity and temperature into a standard signal of 0 - 10 V or 4...20 mA, and is available with/ without an optional display. It is equipped with four switchable temperature ranges. 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. The measuring transducers are designed for exact detection of temperature and humidity. A digital, long-term stable sensor is used as a measuring element for humidity and temperature measurement. Fine adjustment by the user is possible. The sensor is suitable for ceiling and duct installation or for integration in equipment.

348,96 € net
Voltage supply 24 V AC (± 20 %) and
15…36 V DC
Power consumption < 1.1 VA/ 24 V DC ; < 2.2 VA/ 24 V AC
Load resistance RL > 5 kOhm
Sensors digital humidity sensor
with integrated temperature sensor,

low hysteresis, high long-term stability
Measuring range, humidity 0...100 % r. H.
(output corresponding to 0 -10 V)
Operating range, humidity 0...95 % r. H. (without dew formation)
Deviation of humidity typical ± 1,8 % r. H. (10…90 % r. H. ); at + 25 °C, otherwise ± 2 %
Output, humidity 0 - 10 V
Sensor protection pluggable measuring head (probe) with
metal sinter filter, Ø 16 mm, L = 88.5 mm, exchangeable
Ambient temperature storage –35...+85 °C
operation –30...+70 °C
Protective tube stainless steel V2A (1.4301), Ø = 18 mm (16 mm), L = 120 mm
Electrical connection 2-, 3- or 4-wire connection
0.14 -1.5 mm ² via terminal screws on circuit board
Housing plastic, UV-stabilised,
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016)
Housing dimensions 126 x 90 x 50 mm (Tyr 2)
Cable gland M 16 x 1.5, including strain relief, exchangeable,
max. inner diameter 10.4 mm
Connection cable KL = 2 m
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 €