Geonica - Model GEO-DR02 - Fast Response First Class Pyrheuometer With Heated Window
GEO-DR02 is a research grade direct normal incidence (DNI) solar irradiance sensor, also known as pyrheliometer. It complies with 'First Class' classification, as per the latest ISO 9060 and WMO standards. A unique product feature is the fast response and the heated window. DR02 is typically mounted on a (solar) tracker.
GEO-DR02 has been developed for use in monitoring of systems in solar energy applications. Because of its fast response, it is ideally suited for PV applications, where it will match the response time of the panels more closely than other types of pyrheliometers. This means improved accuracy in monitoring situations.
GEO-DR02 also features a thermally isolated low power window heater in the foreoptic. When cycled on/off prior to sunrise the heater effectively eliminates the formation of dew on the pyrheliometer window. This results in improved post sunrise measurement accuracy, as well as lower maintenance, as it requires less cleaning. Determining direct solar irradiance with DR02 requires connection to a data acquisition device and a two-axis solar tracker platform. Each DR02 is calibrated upon manufacture and delivered standard with a WRR (World Radiometric Reference) traceable certificate of calibration.
- solar renewable resource assessment
- concentrated PV electricity output validation
- solar collector and PV panel efficiency
- material testing research
Additional cable lengths (per 5m) Temperature sensors (PtIOO or 10K thermistor) AC100 /AC420 amplifiers
- ISO classification : First Class
- Spectral range : 200 to 4000 nm
- Response time : 2 s (95% response time)
- Resolution : Analogue output, so the resolution depends on the data acquisition only. For METEODATA, the resolution is 0.1 W/m2 or better.
- Non-Linearity : < ±0.3% from 0 to 1000 W/m2
- Full opening view angle : 5 degrees
- Slope angle : 1 degree
- Irradiance range : 0 to 4000 W/m'
- Sensitivity (nominal) : 10 pV/ W/m2
- Temperature range : -40 to +80° C
- Temperature dependence : <± 1% (-10° to *40°C) < ± 0.4% (-30° to + 50°C) with automatic temperature correction carried out by the METEOOATA Datalogger, and based on the signal provided by temperature sensor inside the pyrheliometer.
- Window heating : 0.5 W @ 12VDC
- Relative Humidity range : 0 -100%
- Non stability (drift) : < ±1% per year (full scale)
- Output signal : Analogue voltage 0 to 30 mV
- Calibration traceability : WRR
- Impedance : 150 to 250 Ohm
- Cable length : 5m standard (longer lengths optional)