Room CO2 and temperature sensor or measuring transducer AERASGARD® FSCO2/FSTM-CO2

Voltage supply

24 V AC/ DC (± 10 %)

Power consumption

< 1.5 VA/ 24 V DC, < 2.8 VA/ 24 V AC

Measuring range, temperature

0...+50 °C

Temperature deviation

typically ± 0.8 K at +25 °C

Output, temperature

0 - 10 V

Measuring range, CO2

Sensor, CO2

optical NDIR sensor

(non-dispersive infra-red technology),

with manual calibration (via zero button) and

automatic calibration (fixed)

Output, CO2

0 - 10 V

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

Sensor

digital temperature sensor,

low hysteresis, high long-term stability

Ambient temperature

storage –35...+85 °C;

operation 0...+50 °C

Medium

clean air and

non-aggressive, non-combustible gases

Electrical connection

0.14 - 1.5 mm², using plug terminals

Housing

plastic, colour pure white glossy (similar to RAL 9010)

(other colours are possible on request with colour variants

depending on the respective switch programme)

Installation

in in-wall flush box Ø 55 mm

Long-term stability

< 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