The special measuring block of JJG (Transportation) 024-2020 Eight Wheel Continuous Flatness Meter is used to verify the static indication error. The Eight Wheel Continuous Flatness Meter (referred to as "Flatness Meter") is a specialized equipment for measuring the flatness of road surfaces.
Specifications:
5.0 mm±0.1
10.0 mm±0.1
15.0 mm±0.1
20.0 mm±0.1
30.0 mm±0.1
40.0 mm±0.1