Delta OHM HD33[L]M.GSM, Руководство по эксплуатации

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HD33[L]M.GSM
- 6 -
V1.10
Atmospheric pressure
Sensor Piezoresistive
Measuring range 300…1100 hPa
Resolution (of instrument) 0.1 hPa
Accuracy ± 0.5 hPa (800...1100 hPa) @ T=25°C
± 1 hPa (300...1100 hPa) @ T=0...50°C
Stability 1 hPa / year
Temperature drift ±3 hPa tra -20…+60 °C
Solar radiation
Sensor Thermopile
Measuring range 0…2000 W/m
2
Resolution (of the instrument) 1 W/m
2
Sensitivity Configurable in mV/(kW m
-2
)
Calculated quantities Daily Wh/m
2
(Wh = watt hour)
For the other characteristics, please refer to the data sheet of the chosen pyranometer.
Rainfall quantity
Sensor With contact output (configurable NC or NO in the data logger)
Resolution (of the instrument) Configurable 0.1 – 0.2 – 0.5 mm/tipping
Calculated quantities Rainfall rate in mm/h, rainfall quantity in the last day.
The rainfall rate is calculated by referring the rainfall quantity in the
last five minutes to an hourly value.
For the other characteristics, please refer to the data sheet of the chosen rain gauge.
A measurement compensation curve as a function of the rainfall rate can be configured.
Wind speed – Characteristics of the HD54.3 cup anemometer
Sensor Passive 3-cup anemometer
Measuring range 1…75 m/s
Resolution (of the instrument) 0.1 m/s
Accuracy ± 0.14 m/s @ 10 m/s installed on a flat terrain site
Offset 0.35 m/s
Gain 0.765 m s
-1
/Hz
Distance constant
(63% recovery)
2.55 m @ 5 m/s / 2.56 m @ 10 m/s (ASTM D 5096-02)
Calculated quantities Felt air temperature as a function of the wind speed: Wind Chill index
(only if the logger measures also temperature).
Wind gust : maximum wind speed obtained from the 3 seconds
averages of the measurements acquired once per second.
Wind direction – Characteristics of the HD54.D vane
Sensor continuous rotation potentiometric vane
Measuring range 0…359°
Resolution (of the instrument) 1°
Accuracy < 1%
Dead band 4° typical, 8° max.
Threshold 1 m/s
4…20 mA input
Shunt resistance
Internal (50
Ω
)
Resolution 12 bit
Accuracy ± 2 µA