EN71-1 YoYo Ball Tester
This tester was designed according to standard EN71. It is used for measuring the length of Yo Yo ball.
Base price
Description
Summary
This tester was designed according to standard EN71. It is used for measuring the length of Yo Yo ball.
Key Parameter
Mass:0.05kg/0.1kg/0.2kg
Scale Length:1500mm
Dimension:50x50x175cm
Weight:16kg
Operation procedure
Attached the tether of the Yo Yo Ball to the top clamp.
Make the pointer aim at the end of the tether
Apply a mass to the ring at the end of the tether
Position the tether vertically
Make the pointer aim at the clamp
Read the length from the scale and calculate the length.
More information for calculating the length please refer to the EN71 8.37