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HK Instruments Siro-MOD-VOC-rH-T 室内空气质量变送器 (VOC; rH; T)

Measurement ranges:

+ VOC: CO₂eq: 400–2000 ppm;  TVOC ppm: 0–30.0 ppm; TVOC µg/m3: 0–10000 µg/m3;  IAQ index: 1–5 (UBA rating)

+ Temperature: 0...50 °C

+ Relative humidity:  0–100 %rH

Communication: RS-485 Modbus (RTU)

Accuracy: 

+ Relative humidity: ±2.2 % rH (typical at 20 °C, 30 % rH) 

+ Temperature: ±0.4 °C (typical at 20 °C) 

+ VOC: ±15 % of reading (typical) 

*VOC sensor is tuned for typical IAQ Mix of 22 VOCs as defined by Mølhave et al. (1997) 

Measuring elements: 

+ VOC: Complementary Metal Oxide Semiconductor (CMOS) 

+ Temperature: Integrated to CMOS 

+ Relative humidity: Thermoset polymer capacitive sensing element 

Measuring units: 

+ Relative humidity: % rH 

+ Temperature: °C 

+ VOC CO2eq: ppm 

+ TVOC: ppm, μg/m3 

Calibration (CO2): Automatic self-calibration, ABC LogicTM

Supply voltage: 24 VDC/VAC ±10 %

Output signal 1–4: 0...10 V (optional 2...10 V / 0...5 V, display or configuration tool required); Optional 4...20 mA

Linear to selected measurement (CO2, VOC, PM, rH or Temp) 

Operating temperature: 0...50 °C

Protection standard: IP20

Noted:

VOC = Volatile Organic Compounds sensor

rH = Humidity sensor

T = Temperature sensor

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