Efficient, convenient and network-enabled
Elegant appearance, touch-operated interface, large display, and Modbus-compatible
RYMaskon
Patented quality product (patent no. DE 10 2014 010 719.1)
The maintenance-free microprocessor-controlled duct sensor AERASGARD® KCO2 - SD with automatic calibration (fixed), enclosure with snap-on lid, without display, 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 duct sensor AERASGARD® KCO2 - W with automatic calibration (can be deactivated via DIP switches), enclosure with quick-locking screws, optionally with / without display, 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.
Voltage supply | 24 V AC ⁄ DC (± 10 %) |
---|---|
Power consumption |
< 1.5 W ⁄ 24 V DC typical; < 2.9 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 |
Output, CO2 | 0 - 10 V / 4...20 mA |
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
|
Warm up time | approx. 1 hour |
Response time |
approx. 1 minute, minimum flow rate 0.3 m / s (air) |
Output |
0 -10 V or 4...20 mA, working resistance < 800 Ω (selectable via DIP switches) with offset potentiometer (± 10 % of the measuring range |
Sensor |
VOC sensor (metal oxide) (VOC = volatile organic compounds), with manual calibration (via zero button),
with automatic calibration (can be deactivated via DIP switches) |
Ambient temperature | –10...+60 °C |
Process connection |
by mounting flange, plastic (included in the scope of delivery) |
Protective tube |
PLEUROFORMTM, material polyamide (PA6), with torsion protection, Ø 20 mm, NL = 202.5 mm, vmax = 30 m/s (air) |
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 dimensions | 72 x 64 x 37,8 mm (Tyr 1) |
Cable gland |
2x M 12 x 1.5 (Y-adapter); with strain relief, exchangeable, max. inner diameter 6 mm |
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 |
ISH Messe Frankfurt – S+S Regeltechnik looks forward to meeting you!
11. - 15.03.2019
Stand 10.3 A71
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ISH | 11. - 15.03.2019 | Stand 10.3 A71
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