Sun Trackers

STR-21G Sun Tracker

  • Harmonic Drive® technology
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Sun Trackers

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

STR-21G Sun Tracker

  • Harmonic Drive® technology

A single-arm, 2-axis sun tracker with an easy, fully automated setup procedure and low power consumption, the STR-21G is built to deliver unparalleled precision, optimal positioning, and reliability, whatever the weather.

Add to list
Sun Trackers

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
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Overview

With an integrated GPS receiver, 4-quadrant precision sun sensor, and Harmonic Drive® technology, the STR-21G Sun Tracker is built to deliver unparalleled precision, optimal positioning, and reliability, whatever the weather.

Easy to set up, the STR-21G automatically adjusts to the sun’s position, even if the tracker is not perfectly oriented or levelled, and can support a range of Global, Diffuse and Direct Radiation measurement sensors for custom configurations.

The single configurable arm of the STR-21G can mount the MS-57 Class A Pyrheliometer for DNI readings and the optional MD-81-10 shading disk assembly, shielding any top-mounted pyranometer for diffuse solar radiation measurements.

For over 20 years, clients who have deployed STR sun-trackers have enjoyed easy set-up, smooth operation, and reliable tracking.

Specifications

Attribute STR-21G
Arms 1
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 12 N⋅m
Payload side arms 7kg
Sun sensor FOV 30°
Ingress protection IP 65
Operating temperature range -40 to 50°C
Communication RS-422 / 232C
Power consumption < 10W
Motor Stepper motor
Driving technology Harmonic Drive®
Tracking modes Automatic & Manual
Tripod Table tripod
Pyrheliometer mount Adjustable / One sensor position
Cable length 10m
Weight 14.5kg (with tripod)

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How it works

  1. Confirm your selection and click on the 'Request a quote' button.
  2. Fill in the form & hit send.
  3. Your list and your contact details will be sent to your local EKO office.
  4. Our team will get back to you as soon as possible with more information or to set up a call or meeting.

Customer Support

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