Model ZLT-CD: Conforms to IEC60068-2-75 Annex B
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.

Impact energy: Max. 2J.
Pendulum: Steel.
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.
Reference: IEC 60068-2-75 fig. B1.