HK Instruments Siro-MOD-PM-rH-T-A-D Indoor Air Quality Transmitter (PM; rH; T)

Measurement ranges:

+ PM1/PM2.5/PM10: 0–50 μg/m³ / 0–500 μg/m³ (selectable via jumper); IAQ index: 1-5 (WHO 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)

+ PM:

0…100 μg/m3:

PM2.5: ±15 μg/m3(at 25 ⁰C ±5 ⁰C)

PM1/PM10*: ±25 μg/m3 (at 25 ⁰C ±5 ⁰C)

100…1000 μg/m3:

PM2.5: ±15 % (at 25 ⁰C ±5 ⁰C)

PM1/PM10*: ±25 % (at 25 ⁰C ±5 ⁰C)

*PM1 and PM10 values are calculated from PM2.5 measurement reading with the default particle distribution.

Measuring elements:

+ PM: Laser-based light scattering particle sensing

+ Temperature: Integrated to CMOS

+ Relative humidity: Thermoset polymer capacitive sensing element

Measuring units:

+ Relative humidity: % rH

+ Temperature: °C

+ 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:

PM = Particulate Matter sensor

rH = Humidity sensor

T = Temperature sensor

A = mA output

D = Display

Summary

Datasheet

Manual