DriveTest BIA Class 2, Manual, Page: 16 / 24

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Version 3.1 Archive: BIA Klasse 2_25N_DE_EN_V3.1
1 PURPOSE OF USE
The purpose of the Pinch Force Meter BIA Class 2 with a deflection rate of 25 N/mm is to
measure the pinch (force) of power operated bus and train doors or comparable applications.
The instrument has to be protected from moisture. It is designed to withstand normal handling
and transporting, nevertheless excessive shock or load (>900 N) can demolish it and should
be avoided.
2 BASICS OF PINCH FORCE MEASUREMENT
A characteristic diagram of a pinch force measurement is shown in figure 1:
Figure 1: Characteristic pinch force diagram
F[N]
t [s]
dyn. component
stat. component