Für jede Anwendung die richtige Lösung [Translate]
The room sensor and measuring transducer AERASGARD® FSFTM - CO2 - Modbus in the in-wall enclosure, optionally with potentiometer, is used to measure the CO2 content, relative humidity and temperature of the air, and for setpoint adjustment. The measured values are queried via the Modbus interface.
The CO2 content of the air is measured using an optical NDIR sensor (non-dispersive infra- red technology). 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 %)|
< 4.4 W ⁄ 24 V DC typical; < 6.4 VA ⁄ 24 V AC typical;
peak current 200 mA
relative humidity, temperature, CO2 content of the air
as well as 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|
|Measuring range, CO2||0...5000 ppm|
optical NDIR sensor
(non-dispersive infra-red technology),
with manual calibration (via zero button) and
automatic calibration (fixed)
|Measuring accuracy, CO2||typically ± 30 ppm ± 3 % of measured value|
|Temperature dependence, CO2||
± 5 ppm ⁄ °C or ± 0.5 % of measured value ⁄ °C
(whichever is higher)
|Pressure dependence||± 0,13 % ⁄ mm Hg|
|Gas exchange||by diffusion|
|Warm up time||approx. 1 hour|
|Response time||< 2 minutes|
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|
< 2 % in 15 years
± 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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