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Elegant appearance, touch-operated interface, large display, and Modbus-compatible

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Good room climate is measurable!

Active and Modbus capable room sensors for temperature, humidity and CO2 now also for in-wall installation!

AERASGARD® FSCO2

All quite relative

Pressure measuring transducer for gaseous and liquid media in cost-efficient Standard version for 0 to 16 bar

PREMASGARD® SHD-SD

VOC in focus

Room and duct sensors for detection of mixed gases in cost-efficient Standard versions

AERASGARD® RLQ-SD

Für jede Anwendung die richtige Lösung [Translate]

ACO2-W DISPLAY

AERASGARD® ACO2-W-DISPLAY

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

The maintenance-free microprocessor-controlled on-wall sensor AERASGARD® ACO2 - W with automatic and manual calibration is used for detecting the overall room climate. It measures CO2 within a range of 0...2000 ppm or 0...5000 ppm, air quality (VOC) in one of three sensitivity levels that can be selected LOW  /  MEDIUM (default)  /  HIGH, temperature within a range of –35...+80 °C as well as relative ambient humidity of 0...100 %  r.H. The measured values are converted into standard signals of 0 -10 V or 4...20 mA (selectable via DIP switches). As an option, the measured values can be shown continuously in the illuminated display.

The relative humidity (% r.H.) quotient of water vapour partial pressure divided by the saturation vapour pressure at the respective gas temperature. A digital, long-term stable sensor used as measuring element for relative air humidity and temperature guarantees exact measurement results.

The CO2 content of the air is measured using an optical NDIR sensor (non-dispersive infra-red technology). The detection range of the sensors 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 the AERASGARD® CO2 sensor.

The explanations above demonstrate that there are applications for CO2 measurements, for VOC measurem ents, but from our perspective, above all, for a combination of both measurands. The crucial factor in this respect is that both of these measurands are not convertible into each other and derivations to or from one another cannot be made. An NDIR CO2 measuring instrument measures selectively and cannot detect any VOC; a VOC mixed gas sensor cannot recognize CO2 molecules.

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
Sensor, CO2 optical NDIR sensor (non-dispersive infra-red technology)
with automatic and manual calibration
Output, CO2 0 -10 V or 4...20 mA (selectable via DIP switches)
Measuring accuracy, CO2 ± 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 ohmic load
(assignment selectable via DIP switches)
Response time < 2 minutes
Output 0 -10 V or 4...20 mA (selectable via DIP switches,
selected variant applies for all outputs), working resistance < 800 Ω
Ambient temperature –10...+60 °C
Process connection by screws
Protective tube stainless steel, Ø 16 mm, NL = 55 mm
Electrical connection 0.14 - 1.5 mm² via terminal screws
Enclosure plastic, UV-stabilised,
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted ⁄ Phillips head - combination),
colour traffic white (similar to RAL 9016),
enclosure cover for display is transparent !
Enclosure 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

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ISH Messe Frankfurt – S+S Regeltechnik looks forward to meeting you!
10. - 15.03.2019

Stand 10.3 A71
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