

Maintenance-free AERASGARD® RCO2 - SD room air quality measuring transducer with active output, automatic calibration (fixed), in an elegant plastic housing with snap-on cover, for determining the CO2 content of the air (0...2000 ppm). The transmitter converts the measured values into a standard signal of 0-10 V.
Maintenance-free AERASGARD® RCO2 - W room air quality measuring transducer with active/switching output, automatic calibration (can be deactivated), in an elegant plastic housing with snap-on cover, optional with traffic light indicator (five coloured LEDs), for determining the CO2 content of the air (0...2000 ppm/0...5000 ppm). The transmitter converts the measured values into a standard signal of 0-10 V or 4...20 mA (switchable).
Voltage supply
24 V AC/ DC (± 10 %)
Power consumption
< 1.5 W/ 24 V DC typical;
< 2.9 VA/ 24 V AC typical;
peak current 200 mA
Measuring accuracy
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
Ambient temperature
0...+50 °C
Electrical connection
0.14 - 1.5 mm² via terminal screws
Installation
wall mounting or on in-wall flush box, Ø 55 mm,
base with 4 holes, for attachment to vertically or
horizontally installed in-wall flush boxes for rear cable entry,
with predetermined breaking point for cable entry
from top/ bottom in case of plain on-wall installation
Long-term stability
< 2 % in 15 years
Protection class
III (according to EN 60 730)
Protection type
IP 30