Multi-funtional duct sensor
For humidity, temperature, pressure, differential pressure and volume flow for monitoring and controlling heating, ventilation and air-conditioning systemsPREMASGARD® 814x-Modbus
Für jede Anwendung die richtige Lösung [Translate]
The room sensor and measuring transducer HYGRASGARD® FSFTM - Modbus in the in-wall housing, optionally with potentiometer, is used to measure the relative humidity and temperature of the air, and for setpoint adjustment. The following parameters are calculated internally from the measured values: relative humidity [% r. H.], absolute humidity [g/ m³], mixture ratio [g/ kg], dew point temperature [°C], enthalpy [kJ/ kg] (ignoring atmospheric air pressure) and room temperature [°C]. The parameters are queried via the Modbus interface.
A digital, long-term stable sensor is used for humidity and temperature measurement. Relative humidity [% r. H.] is the quotient of water vapour partial pressure divided by the saturation vapour pressure at the respective gas temperature.
The in-wall sensor is mounted in high-quality panel switch programmes, ideally of the brands Gira, Berker, Merten, Jung, Siemens or Busch-Jaeger (using in-wall adapters, no setpoint adjustment possible) either individually or in combination with light switches, socket outlets, etc.
It is used in non-aggressive, dust-free environments, in refrigeration, air conditioning and clean room technology, and in interior rooms, such as living rooms, offices, hotels, etc.
|Voltage supply||24 V AC/ DC (± 10 %)|
|Power consumption||< 1.1 VA/ 24 V DC ; < 2.2 VA/ 24 V AC|
temperature, relative humidity, absolute humidity,
dew point, mixing ratio, enthalpy
and setpoint potentiometer
(no setpoint adjustment possible with Busch-Jaeger)
|Measuring range, humidity||0...100 % r. H.|
|Operating range, humidity||0...95 % r. H. (without dew formation)|
|Deviation of humidity||typically ± 3.0 % (20...80 % r. H.) at +25 °C, otherwise ± 5.0 %|
|Measuring range, temperature||0...+50 °C|
|Temperature deviation||typically ± 0.8 K at +25 °C|
digital humidity sensor
with integrated temperature sensor,
low hysteresis, high long-term stability
storage –35...+85 °C;
operation 0...+50 °C
clean air and
non-aggressive, non-combustible gases
Modbus (RTU mode),
address range 0...247 selectable
|Signal filtering||4 s / 32 s|
|Electrical connection||0.14 - 1.5 mm², using plug terminals|
plastic, standard colour pure white, glossy (similar to RAL 9010)
(other colours are possible on request with colour variants
depending on the respective light switch programme)
|Installation||in in-wall flush box Ø 55 mm|
|Long-term stability||± 1 %/ year|
|Permissible air humidity||max. 90 % r. H., non-precipitating air|
|Protection class||III (according to EN 60 730)|
|Protection type||IP 20 (according to EN 60 529)|
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU
GIRA System 55
(other switch programmes, manufacturers, colours
and prices upon request
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