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Calibratable pendulum room humidity and temperature sensor HYGRASGARD® RPFTF - Modbus - T3 (± 2,0 %) or RPFTF - 20 - Modbus - T3 (± 1.8 %), with plastic sinter filter (optional metal sinter filter), with Modbus connection, housing made from impact-resistant plastic with quick-locking screws, with/without optional display.
The universal pendulum room sensor is used to determine various characteristic variables in humidity measurement. It is used to measure the relative humidity and the temperature of the surrounding air. These measurands are used to calculate various parameters internally. The Modbus can be used to retrieve the following parameters: relative humidity [% r. h.], absolute humidity [g/ m³], mixture ratio [g/ kg], dew point temperature [°C], enthalpy [kJ/ kg] (ignoring atmospheric air pressure) and ambient temperature [°C].
It is used in non-aggressive dust-free environments in refrigeration, air conditioning, ventilation and clean room technology, hotels, technical rooms, meeting rooms and convention centres. The measuring transducers are designed for exact detection of temperature and humidity. A digital long-term stable sensor is used as 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 into equipment.
24 V AC (± 20 %) and
15…36 V DC
|Power consumption||< 2 W/ 24 V DC, < 3.5 VA/ 24 V AC|
Temperature [°C], relative humidity [% r. h.],
dew point [°C], absolute humidity [g/ m3],
mixture ratio [g/ kg], enthalpy [kJ/ kg]
|Deviation of humidity||
typical ± 2.0 % r. H. (20…80 % r. H. ); at + 25 °C, otherwise ± 3.0 % r. H.
|Temperature deviation||typically ± 0.2 K at +25 °C|
digital humidity sensor
with integrated temperature sensor,
low hysteresis, high long-term stability
plastic sinter filter, Ø 16 mm, L = 35 mm, exchangeable
(optional metal sinter filter, Ø 16 mm, L = 32 mm)
0...100 % r.H. (humidity)
– 35...+80 °C (temperature)
|Zero point offset||
± 10 % r.H. (humidity)
± 10 °C (temperature)
|Ambient temperature||–30...+70 °C|
clean air and
non-aggressive, non-combustible gases
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|
|Electrical connection||0.2 - 1.5 mm2, via push-in terminal|
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016),
housing cover for display is transparent !
|Housing dimensions||108 x 78.5 x 45.8 mm (Tyr 3 with display)|
2x M 20 x 1.5; with strain relief, exchangeable,
inner diameter 8 - 13 mm
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)|
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU
Display with illumination, three-line, programmable,
cutout approx. 51 x 29 mm (W x H), for displaying the actual
humidity and actual temperature (cyclic)
or a selectable parameter (static)
or an individually programmable display value (The Modbus
interface allows the display to be individually configured in the
7-segment area and in the dot-matrix area.)
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