Hauber Item Code 11142 Cable Type E - 4-pole - 5m - Shielded - For Ex Ib

Bearing status parameter for roller bearing diagnostic in accordance with DIN ISO 13373-3
The vibration monitoring units HE055 and HE250 also offer the option for
roller bearing diagnostics in accordance with DIN ISO 13373-3, in addition to
monitoring the vibration speed in accordance with DIN ISO 10816.
In this standardised procedure, proven in practice, the ratio of the effective
acceleration value (m/s² [rms]) to the peak acceleration value (m/s² [peak])
is observed in a range from 10 Hz to 10 kHz.
This is called "crest factor” and, based on the norm, is divided into four ranges that represent the bearing status parameter.
highest peak acceleration value (in m/s², peak) 300 200
Alarm
100
Warning notice
50
Normal state
30 20
very low value
10 5 3
Effective acceleration value (total value of 10 Hz to 10 kHz in m/s², rms)
1
2
3
5
10
20 30 50 100
This simple, meaningful method offers advantages over other, more complex
methods of determining the roller bearing status.
Evaluation of this method does not require any other analysis instruments
(such as tachometers) or software. Because our sensors provide bearing status monitoring as an additional measurement parameter, no other sensors are required to measure the vibration speed, for example. A dual sensor
saves you the need for all the peripherals that come with attaching a second
sensor.
The lower cost and the ease of evaluation that makes this method comprehensible to anyone are also pivotal criteria.
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