Geonica - Model 3000 -Sun Tracker
Model SunTracker-3000 is a two axis fully automatic solar tracker, to align solar radiation instruments with the normal incidence of the sun, from any position on the earth`s surface. Includes a two axis mechanical device with two stepping motors, controlled by an electronic module combined with our Data Logger Model METEODATA. Tracking control is carried out by an astronomical algorithm calculated by the data logger, having the possibility of integrating an optional GPS receiver for ensuring a very precise clock synchronization.
This new design has a fundamental advantage versus other solar trackers regarding the energy consumption, as it requires less than 3 watts from the battery of the data logger. So a single 75 W solar panel will be enough for powering both, the solar tracker and the data logger, avoiding the need of having 110/220VAConthesite.
The SunTracker-3000 allows to mount one or two pyrheliome-ters for the measurement of the direct solar radiation, as well as one or two pyranometers with an optional support and shading assembly, for the measurement of both global and diffuse radiation.
The operation of the SunTracker-3000 in association with the METEODATA logger allows to profit all the unique advantages offered by our versatile unit, as indicated below.
- Unattended and automatic operation.
- Remote control of the solar tracker by means of the same communications network used with the data logger (GSM/GPRS, 3G, satellite, Wi-Fi, WiMax, etc.).
- Automatic transmission of SMS alarm messages in case of low battery or vandalism (GSM/GPRS optional modem is required for the logger).
- Real-time calculation of the sun elevation and azimuth with absolute positioning each second.
- Clock synchronization via Internet time base or by an optional GPS receiver integrated with the data logger.
- Continuous recording in the logger of the sun elevation and azimuth .This allows to correlate at any moment the direct solar radiation measurements with the sun position for subsequent data validation.
- Automatic and continuous diagnosis of the correct operation of the two stepping motors, in such a way that, in case of accidental error, a SMS alarm message will be sent.
- Very low power consumption of less than 3 watts. This allows the logger to power also the solar tracker using a little solar panel for recharging its internal battery (mains is not necessary on the site)
- Control module : External, with RS485 interface
- Data logger communications RS232/422/485, Ethernet, etc. :
- Clock synchronization : By Internet time base or GPS receiver, via the data logger
- Pointing accuracy : <0.1° passive tracking <0.02° active tracking (with optional sun sensor)
- Mechanical transmission : Precision Machined Worm and gear
- Torque : 35 Nm
- Payload : 30 kg
- Angular velocity;acceleration 9.4°/second; 136.4°/s2 :
- Supply voltage : 12VDC
- Power required : Less than 3 watts
- Environmental : Temperature range -20 to +60°C Rel. Humidity range 0-100%
- Mounting base : Tripod with two spirit levels
- Materials : Rust Proof Cast aluminium housing. AISI 304 Stainless steel worm and bronze gear
- Weight : 25 Kg
- Dimensions : 460x490x490 mm (HxWxD)