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Quality product for HVAC sector, accuracy ± 2 %
calibratable dew point control switch HYGRASGARD® TW - Modbus incl. strap ⁄ with detached sensor head, with Modbus connection, terminal box enclosure made of impact-resistant plastic, enclosure cover with quick-locking screws, with ⁄ without optional display.
The universal surface-contact sensor is used to detect various parameters in humidity measurement. The relative humidity and temperature of the ambient air are measured. 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 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.
24 V AC (± 20 %) and
15…36 V DC
< 1,0 VA ⁄ 24 V DC
< 2,2 VA ⁄ 24 V AC
|Deviation of humidity||
typical ± 2.0 % r. H. (20…80 % r. H. ); at + 25 °C, otherwise ± 3.0 % r. H.
|Temperature deviation||± 0.2 K at +25 °C|
digital humidity sensor
with integrated temperature sensor,
low hysteresis, high long-term stability
|Sensor protection||membrane filter|
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|
endless metal strap with metal tightener,
300 mm, for pipes up to 3 ''
(included in scope of delivery)
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted ⁄ Phillips head - combination),
colour traffic white (similar to RAL 9016)
|Enclosure dimensions||72 x 64 x 37,8 mm (Tyr 1)|
2x M 12 x 1.5 (Y-adapter); with strain relief,
exchangeable, max. inner diameter 6 mm
TW - Modbus - external with detached sensor head
(cable length KL = 1.5 m) for mounting on pipes
|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)|
according to EMC Directive 2014 ⁄ 30 ⁄ EU,
according to EN 61 326
Y-adapter for cable gland M16 x1.5 (on 2x M12 x1.5),
plastic (included in the scope of delivery)
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