EKO STR-22G Sun Trackers

The compact 2 arms 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

  • Product Name:EKO STR-22G Sun Trackers
  • Item No.:STR-22G
  • Manufacturers:EKO
  • Country of Origin:Japan

The compact 2 arms 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. EKO Instruments improved the STR-22G Sun Tracker with 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 be powered by a solar-powered battery system or DC power supply. A wide range AC power adapter can be supplied to connect to the grid.

For over 20 years our clients who have deployed the STR sun-tracker, experience ease of set-up, operating and reliable tracking.


Arms:     2

Pointing accuracy Solar elevation: 0 to 87°:     < 0.01 °

Angle resolution :     0.009 °

Rotation angle Zenith:     -15 - 95 °

Rotation angle Azimuth :     0 - 360 °

Torque:     24 Nm

Payload side arms:     15 kg (Total payload 20kg)

Sun sensor FOV:     30 °

Ingress protection IP:     65

Operating temperature range:     -40 - 60 °C

Communication  :     RS-422 / 232C

Power consumption :     < 10 W

Power supply :     21 to 31 VDC / 15W

Power supply (Power Adapter) :     100 to 240 VAC / 20W

Dimensions mm  :     430 (W) x 380 (L) x 440 (H)

Weight:     15.5 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

Options  

Cable length Power cable:     20 / 30 m

Cable length Communication cable:     5 / 10 m

Top mounting plate A (1 position) :     TMP-S-(sensor model)

Top mounting plate B (2 positions) :     TMP-D-(sensor model)

Shading ball assembly A (1 position)  :     MB-12-1

Shading ball assembly B (2 positions) :     MB-12-2

Pyrheliometer mount B (2 positions)   :     STR-22-AD