Technical Data; Aco - S+S Regeltechnik AERASGARD ACO2-W Manuel D'utilisation

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AERASGARD ®

ACO

Maintenance-free on-wall sensor AERASGARD
plastic housing with quick-locking screws, for determining the CO
(–35...+80 °C). The measuring transducer converts the measured values into a standard signal of 0 -10 V.
Maintenance-free on-wall sensor AERASGARD
impact-resistant plastic housing with quick-locking screws, optionally with / without Display, for determining the CO
(0...2000 ppm/0...5000 ppm), the quality in three VOC sensitivity levels (low/medium/high), the temperature (–35...+80 °C) as well as the relative air
humidity (0...100 % r.H). The measuring transducer converts the measured values into a standard signal of 0 -10 V or 4...20 mA (switchable).
The sensor is 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.
A long-term stable, digital humidity and temperature sensor guarantees exact measurement results.
measurement is performed using an optical NDIR sensor (non-dispersive infra-red technology). The detection range is calibrated for
The CO
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standard applications such as monitoring residential rooms and conference rooms.
The air quality is detected by a VOC sensor (mixed gas sensor for volatile organic substances). This sensor determines the loading of the room air
due to contaminated gases such as cigarette smoke, body perspiration, exhaled breathing air, solvent vapours, emissions from building components,
etc. With regard to the expected air contamination, low, medium or high VOC sensitivity can be selected.

TECHNICAL DATA

Voltage supply:
Power consumption:
Outputs:
Relay output:
HUMIDIT Y
Sensors:
Sensor protection:
Measuring range, humidity:
Operating range, humidity:
Deviation of humidity:
Output, humidity:
TEMPERATURE
Measuring range, temperature:
Operating range, temperature:
Temperature deviation:
Output, temperature:
AIR QUALIT Y (VOC)
Sensor, VOC:
Measuring range, VOC:
Output, VOC:
Measuring accuracy, VOC:
Service life:
CARBON DIOXIDE (CO )
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Sensor, CO :
2
Measuring range, CO :
2
Output, CO :
2
Measuring accuracy, CO :
2
Temperature dependence, CO
- W ⁄ ALQ - CO - W ⁄ AFTM - CO
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® ACO - SD and ATM - CO
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®
AFTM - LQ - CO
24 V AC ⁄ DC (± 10 %)
< 4.8 W ⁄ 24 V DC typical; < 6.8 VA ⁄ 24 V AC typical; peak current 200 mA
Ax x - SD 0 -10 V (fixed)
Ax x - W 0 -10 V or 4...20 mA, working resistance < 800 Ω
(selectable via DIP switches, selected variant applies for all outputs),
with offset potentiometer (± 10 % of the measuring range)
Ax x - SD without changeover contact
Ax x - W with potential-free changeover contact (24 V / 1 A)
(assignment selectable via DIP switches, switchpoint adjustable)
digital humidity sensor with integrated temperature sensor,
low hysteresis, high long-term stability
plastic sinter filter, Ø 16 mm, L = 35 mm, exchangeable
(optional metal sinter filter, Ø 16 mm, L = 32 mm)
0...100 % r. H.
0...95 % r. H. (without dew formation)
typically ± 2.0 % (20...80 % r. H.) at +25 °C, otherwise ± 3.0 %
0 -10 V or 4...20 mA (selectable via DIP switches)
–35...+80 °C
–10...+60 °C
typically ± 0.4 K at +25 °C
Ax x - SD 0 -10 V (fixed)
Ax x - W 0 -10 V or 4...20 mA (selectable via DIP switches)
VOC sensor (metal oxide) (VOC = volatile organic compounds),
with manual calibration (via zero button) and
with automatic calibration (can be deactivated via DIP switches)
0...100 % air quality; referred to calibrating gas;
multi-range switching (selectable via DIP switches)
VOC sensitivity low, medium, high
0 -10 V (0 V = clean air, 10 V = polluted air) or
4...20 mA (selectable via DIP switches,
switchpoint can be adjusted from 0...100 % of the output signal)
typically ± 20 % of final value (referred to calibrating gas)
> 60 months (under normal load conditions)
depending on the type of loading and gas concentration
optical NDIR sensor (non-dispersive infra-red technology),
with manual calibration (via zero button),
Ax x - SD with automatic calibration (fixed)
Ax x - W with automatic calibration (can be deactivated via DIP switches)
0...2000 ppm or 0...5000 ppm (selectable via DIP switches)
Ax x - SD 0 -10 V (fixed)
Ax x - W 0 -10 V or 4...20 mA (selectable via DIP switches)
typically ± 30 ppm ± 3 % of measured value
: ± 5 ppm ⁄ °C or ± 0.5 % of measured value ⁄ °C
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(whichever is higher)
- W ⁄ AFTM - LQ - CO - W ⁄ ATM - CO
2 2
- SD with active output, automatic calibration (fixed), in an impact-resistant
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content of the air (0...2000 ppm/0...5000 ppm) and the temperature
2
- W with active / switching output, automatic calibration (can be deactivated), in an
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10
- SD ⁄ ACO - SD
Rev. 2020 - V24
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content of the air
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continued on next page!