Spring Hammer Calibration Device
For testing and calibrating spring operated impact hammer, in accordance with IEC60068-2-75/1997-08 Annex B, Figure B.1 to B.4 with scale for impact energies from 0,2J to 1,2J.
The principle of this calibration procedure is to compare the energy provided by a spring hammer, which is difficult to measure directly, to the energy of a pendulum, calculated from its mass and height of fall.
1 Pendulum with rigidly clamped spring at the lower end,
1 frame with bearing for the pendulum,
1 scale plate with drag pointer, scale of anodized aluminum,
2 release bases at the frame,
1 base plate with removable release device.
Impact energy: Max. 2J.
Diameter pendulum: 20mm.
Length pendulum 635mm ± 2.5mm.
Pendulum H : 120mm ± 2mm.
Pendulum D: 20mm ± 0.5mm.
Pendulum W: 4mm ± 0.01mm.
Release device: Ac. Mechanic.