Room pendulum humidity and temperature sensor HYGRASGARD® RPFTF-20 Modbus

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Product group: WG01
Room pendulum humidity and temperature sensor HYGRASGARD® RPFTF - Modbus
Quality products for the HVAC sector, accuracy ±1.8% or ±2%
The measuring transducers are used in non-aggressive, dust-free environments, in refrigeration, air conditioning and cleanroom engineering, in hotels, engineering rooms, meeting and conference facilities. They provide precise detection of temperature and humidity. A digital, long-term stable sensor is used as a measuring element for humidity and temperature. Fine adjustment by the user is possible. The sensor is suitable for ceiling and duct installation or for integration in equipment.
Technical details
Voltage supply
24 V AC (± 20 %) and
15…36 V DC
Power consumption
< 1,0 VA/ 24 V DC
< 2,2 VA/ 24 V AC
Temperature deviation
typically ± 0.6 K at +25 °C
digital humidity sensor
with integrated temperature sensor,
low hysteresis, high long-term stability
Sensor protection
plastic sinter filter, Ø 16 mm, L = 35 mm, exchangeable
(optional metal sinter filter, Ø 16 mm, L = 32 mm)
Measuring range
0...100 % r.H. (humidity)
– 35...+80 °C (temperature)
Zero point offset
± 10 % r.H. (humidity)
± 5 °C (temperature)
Ambient temperature
–30...+70 °C
clean air and
non-aggressive, non-combustible gases
Bus protocol
Modbus (RTU mode),
address range 0...247 selectable
Signal filtering
4 s / 32 s
Protective tube
stainless steelV2A (1.4301), Ø = 16 mm, L = 142 mm
Cable gland
2x M 12 x 1.5 (Y-adapter); with strain relief,
exchangeable, max. inner diameter 6 mm
Cable length
CL = 2 m, other lengths optional
sensor cable
PVC, LiYY, 6 x 0.14 mm²,
KL = approx. 2 m (other lengths optional)
Permissible air humidity
< 95 % r. H., non-precipitating air
Protection class
III (according to EN 60 730)
Protection type
IP 65 (according to EN 60 529)*
CE conformity
according to EMC Directive 2014/ 30/ EU,
according to EN 61 326