ACO2-W LCD

AERASGARD® ACO2-W-DISPLAY

Item No. 1501-7110-7371-200
EAN 4 251325 613482

The maintenance-free microprocessor-controlled on-wall sensor AERASGARD® ACO2 - SD with automatic calibration (fixed) is used for detecting the CO2 content of the air within a range of 0...2000 ppm or 0...5000 ppm. The measurement value is converted into standard signal of 0 -10 V.

The maintenance-free microprocessor-controlled on-wall sensor AERASGARD® ACO2 - W with automatic calibration (can be deactivated via DIP switches) is used for detecting the CO2 content of the air within a range of 0...2000 ppm or 0...5000 ppm. The measurement value is converted into standard signal of 0 -10 V or 4...20 mA.

The CO2 content of the air is measured using an optical NDIR sensor (non-dispersive infra-red technology). The detection range of the CO2 sensor is calibrated for standard applications such as monitoring residential rooms and conference rooms. Room ventilation on an as-needed basis, improved well-being and customer benefit, increased comfort as well as reduced operating costs through energy conservation are just some of the benefits of employing AERASGARD® CO2 sensors.

A measuring system based on NDIR (non-dispersive infra-red technology) for CO2 measurement consists of a light source and a receptor. A certain range of wavelengths of light radiated by the source is damped and absorbed by CO2 molecules in the measured section. This damping is detected by the receptor.

356,80 € net
Voltage supply 24 V AC/ DC (± 10 %)
Power consumption < 4.8 W/ 24 V DC typical; < 6.8 VA/ 24 V AC typical; peak current 200 mA
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
Relay output
with potential-free changeover contact (24 V / 1 A),
switchpoint adjustable
Response time < 2 minutes
Output 0 -10 V  or  4...20 mA,  working resistance  < 800  Ω
(selectable via DIP switches) 
with offset potentiometer (± 10 % of the measuring range
Output 0 -10 V or 4...20 mA (selectable via DIP switches,
selected variant applies for all outputs), working resistance < 800 Ω
Sensor
Optical NDIR sensor (non-dispersive infra-red technology),
with manual calibration (via zero button), 
with automatic calibration (can be deactivated via DIP switches)
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
Housing plastic, UV-stabilised,
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016),
housing cover for display is transparent !
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)
Standards CE conformity,
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU
Optional three-line display with illumination, cutout approx. 70 x 40 mm (W x H),
for displaying actual humidity, actual temperature, air quality and / or the actual CO2 content
Display three-line display with illumination, cutout approx. 70 x 40 mm (W x H),
for displaying actual humidity, actual temperature, air quality and / or the actual CO2 content