DriveTest BIA Class 2, Manual

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Version 3.1 Archive: BIA Klasse 2_25N_DE_EN_V3.1
The characteristic pinch force diagram is the result of a dynamic und a static part:
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Dynamic component:
Additional to the force of the drive motor the inertia of the door has an effect on the
pinch force. This force depends on the stopping time. The elasticity of the instrument
and the closing edges influates the acceleration and therefore the maximum value of
the pinch force. The stiffness of the spring of the pinch force meter should have the
average value of probably pinched human body parts. The BIA Class 2 has a trailling
pointer so that only the measurement of the peakforce is possible.
−
Static component:
After the door has been stopped (and the reopening system has not instantly opened
the door) the static component caused of the driving force can be measured.
2.1 LAWS AND STANDARDS
The characteristic values have as a result of biomechanic considerations certain limits to
minimize the danger of human damage.
In the Federal Republic of Germany in 1989 a law relating the pinch force measuring at bus
doors (§ 35e StVZO) came into force. The instrument BIA Class 2 has been designed for this
field. Meanwhile the specification has fully or partly been taken over in other fields.
Before using the instrument we recommend to compare the technical data of the instrument
with your specific needs according to national and international laws and standards.
Important features are: Spring Stiffness (deflection rate), gap width and size of the initiation
areas.