Fully Automated Setup
Harmonic Drive® technology
From sunrise to sunset the compact STR-22G guarantees accurate tracking and pointing of the attached solar sensors, automatically adjusting to the sun’s position.
The compact 2-arm STR-22G sun tracker is perfectly suited to support all kinds of Global, Diffuse and Direct Radiation measurement sensors.
Besides the standard EKO sensor mounts, various alternative mounts for non-EKO sensors are available. Featuring a fully automated set-up procedure via an onboard GPS receiver, providing increased reliability and enhanced functionality, the compact Sun-Tracker guarantees accurate sun tracking and pointing of the attached solar sensors from sunrise to sunset.
The 2-axis tracker automatically adjusts to the sun’s position by the sun sensor closed-loop control system, even if the tracker is not oriented or levelled properly. The sun-tracker comes standard with a small table tripod (larger tripod available). The 24 VDC low power consumption tracker can be powered by a solar-powered battery system or DC power supply. A wide range AC power adapters can be supplied to connect to the grid.
For over 20 years, clients who have deployed STR sun-trackers have enjoyed easy set-up, smooth operation, and reliable tracking.
- All-Weather tracking with integrated GPS receiver & 4-quadrant sun sensor
- Low power consumption
- Quick, Easy, Fully automated setup
- Easy integration with any DAQ system
- Harmonic Drive® mechanical gear system, for maximum positioning accuracy
- Deployed in Antartica, proven in extreme climates worldwide
- RS-232 serial interface for position control
| Arms | 2 |
| Pointing accuracy Solar elevation: 0 to 87° | < 0.01° |
| Angle resolution | 0.009° |
| Rotation angle Zenith | -15 to 95° |
| Rotation angle Azimuth | 0 to 360° |
| Torque | 24 N⋅m |
| Payload side arms | 15kg |
| Sun sensor FOV | 30° |
| Ingress protection IP | 65 |
| Operating temperature range | -40 to 50°C |
| Communication | RS-422 / 232C |
| Power consumption | < 20W |
| Motor | Stepper motor |
| Driving technology | Harmonic Drive® |
| Tracking modes | Solar position / Free positioning |
| Tripod | Table tripod |
| Pyrheliometer mount | Adjustable / One sensor position |
| Cable length | 10m |
| Weight | 15.5kg (with tripod) |
