Delta OHM HD37AB1347, Manual

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10.1 T
ECHNICAL DATA OF THE PROBES THAT CAN BE CONNECTED TO THE INSTRUMENT
10.1.1 P37AB147 and P37B147 SICRAM probes
•
P37AB147: Measurement of CO
2
– CO – Relative Humidity – Temperature – Atmospheric
Pressure.
•
P37B147: Measurement of CO
2
– Relative Humidity – Temperature – Atmospheric Pressure.
CO
2
Carbon Dioxide
Sensor NDIR Dual Wavelength
Measurement range 0 … 5000ppm
Sensor working range -5 … 50°C
Accuracy ±50ppm+3% of measure
Resolution 1ppm
Temperature dependence 0.1%f.s./°C
Response time (T
90
) < 120 sec (wind speed = 2m/sec)
Long-term stability 5% of measure/5 years
CO Carbon Monoxide (only P37AB147)
Sensor Electrochemical cell
Measurement range 0 … 500ppm
Sensor working range -5 … 50°C
Accuracy ±3ppm+3% of measure
Resolution 1ppm
Response time (T
90
) < 50 sec
Long-term stability 5% of measure/year
Service life > 5 years in normal environment conditions
Relative Humidity RH
Type of sensor Capacitive
Sensor protection Stainless steel grid filter (on request 20µm sintered filter P6 in AISI 316 or 10µm
sintered filter P7 in PTFE)
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 (T
90
) < 20 sec (wind speed = 2m/sec) without filter
Long-term stability 1%/year
Temperature T
Type of sensor NTC 10k Ω
Measurement range -20 … +60°C
Accuracy ±0.2°C ±0.15% of measure
Resolution 0.1°C
Response time (T
90
) < 30 sec (wind speed = 2m/sec)
Long-term stability 0.1°C/year
Atmospheric Pressure Patm
Type of sensor Piezo-resistive
Measurement range 750 … 1100 hPa
Accuracy ±1.5 hPa @ 25°C
Resolution 1 hPa
Long-term stability 2hPa/year
Temperature drift ±3hPa with temperature -20 … +60°C