The Class H tester uses a high-resolution angle encoder that tracks the pendulum’s starting position with very fine accuracy. Because the absorbed energy is based on the difference between the starting and ending angles, even small errors can affect the final value. The encoder reads the pendulum’s lift position precisely and sends the data directly to the controller, removing guesswork and eliminating the variability that can come from manual angle scales.

The servo-motor lift also plays a role in accuracy. It raises the pendulum smoothly to the exact preset angle every time, without overshooting or drifting. This ensures that each test begins with the same amount of potential energy. Combined with the electromagnetic lock, which holds the pendulum completely still before release, the starting angle remains consistent across long test runs.

Click here to learn more about the product or here to receive a personalized quote.