EKO Instruments
STR-22G Sun Tracker
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.
Overview
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.
Key Features
- 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 Antarctica, proven in extreme climates worldwide
- RS-232 serial interface for position control
Comparison
Comparison of EKO Instruments SunTracker
| STR-21G Sun Tracker | STR-22G Sun Tracker | STR-32G Sun Tracker | |
| Arms | 1 | 2 | 2 |
| Pointing Accuracy | < 0.01° | ||
| Rotation Angle Zenith | -15 to 95° | ||
| Rotation Angle Azimuth | 0 to 360° | ||
| Torque | 12 N⋅m | 24 N⋅m | 60 N⋅m |
| Payload side arms | 7kg | 15kg | 60kg |
| Sun sensor FOV | 30° | ||
| Ingress Protection | IP65 | ||
| Communication | RS-422 / 232C | ||
| Power Consumption | < 20W | < 20W | < 25W |
| Motor | Stepper motor | ||
| Driving Technology | Harmonic Drive® | ||
| Tracking Mode | Automatic & Manual | Solar position / Free positioning | Solar position / Free positioning |
Downloads
| str-series-manual_0 | Downloadstr-series-manual_0 |
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