Application and Characteristics

1. Fully comply with the GB/T50378-2014 "Green Building Evaluation Standard";

2. By using high-precision MEMS sensors and digital technology, CO2 concentration values can be verified;

3. Merge power communication into two cables and two bus communication;

4. Provide feedback on indoor CO2 concentration values and sensor malfunction information;

5. DC24V safe working voltage, independent address coding;

6. Dimensions: 130 * 110 * 42mm;

7. Online continuous monitoring and real-time display of monitoring values.

technical indicators

Sensor: NDIR sensor with ABC self calibration function

Measurement principle: active gas diffusion

Response time:<10s (30cc/min, slow flow air)

Drift:<± 10ppm/year

Range: 0-200ppm, or other (0-5000pm)

Output: 4-20mA, 0~10V, RS485/Modbus

Relay: 2 x SPST,

CDW/CDD∶1A/30VDC, 0.5A/125VAC

CDWN∶3A/30VDC,3A/250VAC

Output load: ≤ 500 Ω (current type), ≥ 2K Ω (voltage type)

Power supply: 15~28VAC/15~36VDC

Working environment: 0-50 ℃, 0-95% RH (non condensing)

Storage and transportation temperature: -20~80 ℃

Shell material: Fireproof ABS

Protection level: IP30 (CDWCDWN), IP65 (CDD)