On-wall CO2 sensor and measuring transducer, self-calibrating, with multi-range switching and active ⁄ switching output Maintenance-free on-wall sensor AERASGARD ® ACO2-SD 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 measuring transducer converts the measured values into a standard signal of 0 -10 V. Schematic diagram Maintenance-free on-wall sensor AERASGARD ® ACO2-W 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). he 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. One sensor for every 30 m² of room area is recommended. The CO2 measurement is performed using an optical NDIR sensor (non-dispersive infra-red technology). The detection range is calibrated for standard applications such as monitoring residential rooms and conference rooms. For more information, see the start of the chapter. TECHNICAL DATA Power supply:  Power consumption:  < 1.5 W ⁄ 24 V DC typical; < 2.9 VA ⁄ 24 V AC typical; Peak current 200 mA optical NDIR sensor (non-dispersive infra-red technology), with manual calibration (via zero button), ACO2 - SD with automatic calibration (fixed) ACO2 -W with automatic calibration (can be deactivated via DIP switches) Measuring range:  Multi-range switching (selectable via DIP switches) 0...2000  ppm; 0...5000  ppm ACO2 - SD 0 -10 V (fixed) ACO2 -W 0 -10 V or 4...20 mA, working resistance  < 800  Ω (selectable via DIP switches), with offset potentiometer (± 10 % of the measuring range) Relay output:  ACO2 - SD without changeover contact ACO2 -W with potential-free changeover contact (24 V / 1 A), switchpoint adjustable Measuring accuracy:  typically ± 30 ppm ± 3 % of measured value Temperature dependence: ± 5 ppm   ⁄  °C or ± 0.5 % of measured value   ⁄  °C (whichever is higher) Connecting diagram Schematic diagram Pressure dependence:  Long-term stability:  Ambient temperature:  Response time:  Electrical connection:  plastic, UV-resistant, material polyamide, 30 % glass-globe reinforced, with quick-locking screws (slotted ⁄ Phillips head combination), colour traffic white (similar to RAL 9016) Housing dimensions:  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) Process connection: Protection class: Protection type: IP 65 (according to EN 60 529) CE conformity, electromagnetic compatibility according to EN 61 326, EMC Directive 2014 ⁄ 30 ⁄ EU AERASGARD ® with display (see AFTM-LQ-CO2) for displaying the actual CO2 content in ppm see table mail @ SplusS.de Breaker +UB 24V AC/DC Output CO² in ppm –UB GND Connecting diagram Normally open contact

On-wall CO2 sensor and measuring transducer, self-calibrating, with multi-range switching and active ⁄ switching output ACO2 - W ACO2 - SD WS-03 Weather and sun protection hood (optional) M12 connector (optional on request) CO2 automatic zero point activated (default) Output AERASGARD ® ACO2 - SD On-wall CO2 sensor and measuring transducer, Standard AERASGARD ® ACO2 - W On-wall CO2 sensor and measuring transducer, Premium Type ⁄ WG02 Equipment Display changeover contact changeover contact, display ■ Cable connection with M12 connector according to DIN EN 61076-2-101 (on request) This unit must...