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Keterangan

PYRANOMETERS
Delta Ohm manufactures First Class LP PYRA 02 and LP PYRA 12 and Second Class LP
PYRA 03 pyranometers which fully comply with ISO 9060 standards, and meet the requirements
defi ned by the World Meteorological Organization (WMO). These are strong and reliable
ground-based instruments, especially designed to be used under all weather conditions. They
are suitable for installation on the fi eld.
Recommended use: atmospheric research, weather stations, climatology, energy saving
research, productive effi ciency test of photovoltaic plants, etc…
Pyranometers LP PYRA 02 and LP PYRA 03 are well suited for the measurement of incoming
global solar radiation (0.3¼m ÷ 3¼m spectral range). LP PYRA 12 shadow ring is designed to
shield the instrument sensor from direct radiation; by that, an exact measurement of the diffuse
sky radiation is possible.
No power supply is needed; pyranometers generate a voltage which is usually equal to:
10
mV
kW • m2
Every pyranometer is calibrated separately and is supplied standard with a WRR (World Radiometric
Reference) Report of Calibration.
Technical Specification LP PYRA 02 / LP PYRA 12* LP PYRA 03
Typical sensitivity 10 ¼V/(W/m2)
Impedance 33 © ÷ 45 ©
Measuring range 0 ÷ 2000 W/m2
Viewing field 2À sr
Spectral field 305 nm ÷ 2800 nm W/m2 (50%)
Operating temperature -40 °C ÷ 80 °C
Working temperature 0.90 Kg 0. 45 Kg
ISO 9060 Specifi cations
Response time < 28 sec < 30sec
Zero Off-set
a) Response to thermal radiation (200Wm-2) 15 W/m2 25 W/m2
b) Response to temperature change 5K/h