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CV:31A Vibration Meter User Manual
Page 7
Hand-Arm Vibration Measurement with the CV:31A
This section will give you basic instructions for the measurement and evaluation of
hand-arm vibrations based on the standard ISO 5349 and the guideline VDI 2057, Part
2.
Please consult the original documents for detailed explanations.
Measuring Points for Hand-Arm Vibration
The sensors should be attached as close as possible to the gripping points of the hand,
however, they must not interfere with the work process.
Measurements should be performed with the same hand pressure force as used under
normal operating conditions.
Since most machine tool handles do not provide surfaces for the adhesive or screw
attachment of sensors, Cirrus offers some mounting accessories for curved surfaces.
Figure 7: Handle adapter ML:311
Figure 8: Handle adapter ML:312
The adapter ML:311 is attached with a plastic cable strap. The ML:312 is pressed onto
the handle by the hand.
Close contact between the sensor and the machine is of great importance. Any motion
of the sensor would distort the measurement.
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