Sun Tracker ASTX-2
ASTX-2 is an automatic Sun tracker for the pourpose of measurement of the Direct Normal Irradiance (DNI).
This device automatically tracks the sun in order to take in direct light
by installing a Pyrheliometer and a sunphotometer. By attaching a sun position
sensor, the built-in CPU enables fully automatic tracking. Latitude, longitude,
and time are automatically set from the included GPS. ASTX-2 is gear-driven
for easy maintenance. The main unit of the tracking device has a relay
input/output for mounted equipment, allowing the cables of mounted equipment
to be routed through the main unit of the tracking device, preventing the
cables from getting caught when the device is rotating. The tripod base
supporting the main unit can be easily removed and the main unit can be
mounted on a pole.
- Full automated sun tracking by Sun sensor and GPS.
- Gear drive for easy maintenance.
- Sensor's cables can be routed through ASTX-2 in order to prevent that the cables getting caught when the device is rotating.
Specification
| Payload | On request |
| Number of the sensors | 1 x sensor (This can be increased on request) |
| Zenigh angle | -30 to +120 degrees (0 = Zenigh angle, + = South, - = North) |
| Azimuth angle | +/- 180 degrees (0 = South, + = East, - = West) |
| Resolution of the angle | 0.00225 degrees. |
| Tracking method | Automatic calculation of path of the sun by the built-in-CPU. |
| Correction of the position | Sun position sensor (when the sun is present in the sky) |
| Turn to be calculation mode, when the sun is not present. | |
| Drive system | 2 axis Pulse motor |
| Latitude, Longitude, Time settings | Automatically set by the GPS system |
| Controller | Built-in 16 bit CPU |
| Communication Interface | RS232C(This can be controlled by PC) |
| Power consumption | 120W (120V/1.2A) |
| Power | 100-200VAC, 2A, 50/60Hz (DC power model is also available) |
| Cable length (Power cable) | 20m (Standard) |
| Material | Housing Baking finish with white color on the alminum |
| Shaft | Stainless steel |
| Weight | Approx. 20kg |
| Option | Heater, Shading ball, sensor tilting device. |