Delta OHM HD21ABE17 - Indoor Air Quality Measurement

Sensor NDIR Dual Wavelength
Measurement range 0…5000 ppm
Sensor working
range
-5…50 °C
Accuracy ±50 ppm+3% of measure
Resolution 1 ppm
Temperature
dependence 0.1% f.s./°C
Response time (T90) < 120 sec (wind speed = 2 m/s)
Long-term stability 5% of measure/5 years
CO Carbon Monoxide
Sensor Electrochemical cell
Measurement range 0…500 ppm
Sensor working
range
-5…50 °C
Accuracy ±3 ppm+3% of measure
Resolution 1 ppm
Response time (T90) < 50 sec
Long-term stability 5% of measure/year
Service life > 5 years in normal environment
conditions
Atmospheric Pressure
Type of sensor Piezo-resistive
Measurement range 750…1100 hPa
Accuracy ±1.5 hPa @ 25 °C
Resolution 1 hPa
Long-term stability 2 hPa/year
Temperature drift ±3 hPa with T= -20…+60 °C
Relative Humidity
Type of sensor Capacitive
Sensor protection Stainless steel grid filter
Measurement range 0…100 % RH
Sensor working
range
-20…+60°C
Accuracy ±2% (10÷90 %RH)
±2.5% in the remaining range
Resolution 0.1 %RH
Temperature
dependence ±2% on all temperature range
Hysteresis and
repeatability 1 %RH
Response time (T90) < 20 sec (wind speed = 2m/s)
without filter
Long-term stability 1%/year