AQD series displays three most crucial parameters of IAQ; CO2 level, humidity and temperature. It also provides date, day and time.
It uses good quality sensors; such as the NDIR CO2 sensor, temperature and humidity sensors which are usually available only in laboratory air quality diagnostic equipment.
AQD series measures CO2 concentration which may not be noticeable by us and used the reading to control ventilation
so that the indoor CO2 level can be kept below the recommended ASHRAE limit of 1000ppm.
Monitoring humidity is very important as extended period in an area with humidity over 60% or below 40% can create conditions for mold and mildew growth that may cause allergies and affect general health.
It uses good quality sensors; such as the NDIR CO2 sensor, temperature and humidity sensors which are usually available only in laboratory air quality diagnostic equipment.
AQD series measures CO2 concentration which may not be noticeable by us and used the reading to control ventilation
so that the indoor CO2 level can be kept below the recommended ASHRAE limit of 1000ppm.
Monitoring humidity is very important as extended period in an area with humidity over 60% or below 40% can create conditions for mold and mildew growth that may cause allergies and affect general health.
| General | |
| Type | Wall mount |
|---|---|
| Parameters | CO2, Relative Humidity, Temperature |
| Operating Environment | -10 ~ 60 ℃ / 0 ~ 95%RH, non-condensing |
| Storage temperature | -10~60 ℃ |
| Clock | Real time clock with battery backup |
| Power supply | 12 VDC (supply with an AC adapter 100~240V / 50~60Hz ) |
| Current consumption | 1.2A (max) |
| Display | 7 segment LED display |
| Memory capacity | 60000 values |
| CO2 Measurement | |
| Measurement principle | Non-dispersive infrared (NDIR) with automatic calibration |
| Measurement range | 0~9999 ppm |
| Accuracy tolerance | 0~2000ppm ± 3% and ± 40 ppm note1 and 2 |
| Response time | 2 minutes by 90% |
| Maintenance | Maintenance-free for normal indoor applications |
| Environmental | -10 ~ 60 ℃/ 0 ~ 95%RH, non-condensation |
| Display digit | 4 digits, 0 ~ 9999 |
| Relay setting | 1200ppm |
| Hysteresis | 100ppm |
| Humidity Measurement | |
| Measurement range | 0 ~ 95 %RH |
| Accuracy tolerance | ± 3 %RH (typical) |
| Repeatability | ± 0.1 %RH |
| Response time τ63 | < 8 s (τ63%, 25℃) |
| Long-term drift | < 0.5 %RH / year |
| Display digit | 2 digits, 0 ~ 99 |
| Relay setting | 70%RH |
| Hysteresis | 5%RH |
| Temperature Measurement | |
| Measurement range | -10 ~ 60 ℃ |
| Accuracy tolerance | ± 0.3 ℃ (typical) |
| Repeatability | ± 0.1 ℃ |
| Response time τ63 | 5 ~ 30 s (τ63%, 25℃) |
| Long-term drift | < 0.04 ℃/ year |
| Display digit | 3 digits (One decimal point), 0.0 ~ 99.9 |
| Relay setting | 28℃ |
| Hysteresis | 1℃ |
| Outputs | |
| RS-485 | RS485 (Modbus RTU) |
| Relay | 3 Relay outputs for CO2, relative humidity, and temperature respectively. N.O. and N.C. (2A/30VDC) |
| Mechanical | |
| Housing material | PMMA panel (4mm)， SPCC casing (1mm) |
| Dimensions | 527 x 217 x 32 mm |
| Weight | 2600g |
| Note 1: In normal IAQ applications. Accuracy is defined after minimum 3 weeks of continuous operation with ABC. However, some industrial applications do require maintenance.℃ Note 2: Accuracy is specified at room temperature +25°C and at normal pressure 101.3 kPa. Specification is referenced to certified calibration mixtures. Uncertainty of calibration gas mixtures (+-1% currently) is to be added to the specified accuracy for absolute measurements. | |