Model No. | AVC-310 CO2 transmitter | AVC-311 CO2 + temperature & humidity transmitter |
---|---|---|
Sensing element | CO2: Gold-plated infrared (NDIR) wave-guide technology with Automatic Baseline Correction (ABC) and passive gas diffusion (no moving parts) | CO2: Gold-plated infrared (NDIR) wave-guide technology with Automatic Baseline Correction (ABC) and passive gas diffusion (no moving parts) Temperature & humidity: CMOS sensor |
Response time | CO2: < 10 sec. @ 30 cc/min. flow rate < 3 min. diffusion time | CO2: < 10 sec. @ 30 cc/min. flow rate < 3 min. diffusion time Temperature: min. 3 sec.;max. 30sec. at τ63% Humidity: < 8 sec. at τ63% |
Accuracy (at 25℃) | CO2: ± 30ppm +(± reading *3%) | CO2: ± 30ppm +(± reading *3%) Temperature: ±0.3℃ Humidity: ±2 %RH |
Repeatability | CO2: ± 20ppm + (±reading * 1%) | CO2: ± 20ppm + (±reading * 1%) Temperature: ±0.1℃ Humidity: ±0.1 %RH |
Zero Drift | CO2: < ± 10ppm/yr. with Automatic Baseline Correction (ABC) | CO2: < ± 10ppm/yr. with Automatic Baseline Correction (ABC) Temperature: < 0.04 ℃/yr Humidity: < 0.5 %RH/yr. |
Measurement range* | CO2: 0 ~ 2,000ppm | CO2: 0 ~ 2,000ppm Temperature: -10 ~ 60℃ Humidity: 0 ~ 95 %RH |
Signal output | DC 4 ~ 20mA; DC 0 ~ 10 V; RS485 (Modbus RTU) | RS485 (Modbus RTU) |
Alarm output | Relay output N.O,N.C ( 2A / 30V DC) | |
Pressure dependence | CO2: 1.6% reading per kPa | |
Environmental | Temperature: -10 ~ +60 ℃; Humidity: 0 ~ 95%RH (without condensation) | |
Storage temperature | -20 ~ +70 ℃. | |
Warm-up time | ≤ 1 min. (at full specs ≤ 15 minutes) | |
Power supply | 12 ~ 36V AC/DC,50/60 Hz (half-wave rectifier input) | |
Power consumption | < 1.7W (peak value) | |
Installation | Wall-mount; Duct-mount | |
Dimension (mm) | Wall-mount: 113.57(H) x 80(W) x 28.79(D); Duct-mount: 142.4H x 85W x 47.2D; sensing probe: 130mm | |
Case material | ABS | |
IP rate | Wall-mount: IP30; Duct-mount: IP65 | |
*The AVC-310 series is for general indoor use. For any special application, such as industrial or agriculture, please contact us. **All information is subject to change without prior notice |