Multifunctional on-wall sensors and measuring transducers, for humidity, temperature, CO2 content and air quality (VOC) AERASGARD® ACO2

Equipment

Display

Product group: WG02

Maintenance-free AERASGARD® ACO2-SD on-wall air quality measuring transducer with active output, automatic calibration (fixed), in an impact resistant plastic housing with quick-locking screws, 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.

Maintenance-free AERASGARD® ACO2-W on-wall air quality measuring transducer with active/switching output, automatic calibration (can be deactivated), in an impact resistant plastic housing with quick-locking screws, optionally with/without display, 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).

The sensor devices are used in offices, hotels, convention centres, apartments, shops, etc. for the purpose of evaluating the indoor climate. This enables energy-saving room ventilation on an as-needed basis, thereby reducing operating costs and improving well-being.

The CO2 content is measured using an optical NDIR sensor (non-dispersive infra-red technology). The detection range is calibrated for standard applications such as the monitoring of residential and conference rooms.

Available configurations

Artikelnummer	Bezeichung
1501-7110-1001-200	AERASGARD® ACO2-SD-U
1501-7110-7301-200	AERASGARD® ACO2-W
1501-7110-7371-200	AERASGARD® ACO2-W LCD

Voltage supply

24 V AC/ DC (± 10 %)

Data points

Carbon dioxide (CO2)

Measuring range, CO2

multi-range switching (selectable via DIP switches)
0...2000 ppm; 0...5000 ppm

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

Output

0 -10 V or 4...20 mA (selectable via DIP switches,
selected variant applies for all outputs), working resistance < 800 Ω

Measuring range

0...2000 ppm / 0...5000 ppm

Ambient temperature

–10...+60 °C

Process connection

by screws

Protective tube

stainless steel V2A (1.4301), Ø 16 mm, NL = 55 mm

Electrical connection

0.14 - 1.5 mm² via terminal screws

Cable connection

cable gland, plastic (M 16 x 1.5; with strain relief, exchangeable, max. inner diameter 10.4 mm) or
M12 connector according to DIN EN 61076-2-101 (optional on request)

Housing dimensions

126 x 90 x 50 mm (Tyr 2)

Cable gland

M 16 x 1.5; including strain relief,
exchangeable

Long-term stability

< 2 % in 15 years

Protection class

III (according to EN 60 730)

Protection type

IP 65 (according to EN 60 529)*

Protection type housing

IP 65