HK Instruments Siro-VOC-rH-T Multifunctional indoor air quality transmitters for building automation systems (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

Accuracy:

+ VOC*: 15 % of reading (typical)

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

+ Temperature:  ±0.5 ⁰C (typical at 20 ⁰C)

+ Relative humidity: ±2.4 %rH (typical at 20 ºC, 30 % rH)

Measuring elements:

+ CO2: Non-dispersive infrared (NDIR)

+ VOC: Complementary Metal Oxide Semiconductor (CMOS)

+ PM: Laser-based light scattering particle sensing

+ Temperature: Integrated to CMOS

+ Relative humidity: Thermoset polymer capacitive sensing element

Measuring units:

+ CO2: ppm

+ Relative humidity: % rH

+ Temperature: °C

+ VOC:  CO2eq: ppm;  TVOC: ppm, μg/m3

+ PM1/2.5/10: 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,