STR-21G Sun Trackers EKO Instruments Vietnam, STR-21G Sun Trackers EKO Instruments Vietnam, EKO Instruments Việt Nam, EKO Vietnam, EKO Việt Nam, Đại lý EKO Instruments Vietnam, STR-22G, STR-32G

The compact single arm sun tracker is perfectly suited to support all kinds of Global, Diffuse and Direct Radiation measurement sensors. STR-21G is the base of the Solar Monitoring Systems (STR-21G-S), a turnkey measurement solution from EKO. The STR-21G provides a fully automated set up procedure through a GPS receiver providing increased reliability and enhanced functionality. 

From sunrise to sunset the compact sun-tracker guarantees accurate sun tracking and pointing of the attached solar sensors. 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 leveled properly.

The sun-tracker comes standard with a small table tripod (larger tripod available). The 24 VDC low power consumption tracker can ...

Specifications STR-21G
  Arms 1
  Pointing accuracy Solar elevation: 0 to 87° < 0.01 °
  Angle resolution 0.009 °
  Rotation angle Zenith -15 - 95 °
  Rotation angle Azimuth 0 - 360 °
  Torque 12 Nm
  Payload side arms 7 kg
  Sun sensor FOV 30 °
  Ingress protection IP 65
  Operating temperature range -40 - 50 °C
  Communication RS-422 / 232C
  Power consumption < 10 W
  Power supply 21 to 32 VDC / 20W
  Power supply (Power Adapter) 100 to 240 VAC / 20W
  Dimensions mm 430 (W) x 380 (L) x 440 (H)
  Weight 14.5 kg (With tripod)
  Motor Stepper motor
  Driving technology Harmonic drive®
  Tracking mode Solar postion / Free positioning
  Tripod Table tripod
  Pyrheliometer mount Adjustable / One position
  Cable length 10 m