WEG Motor Scan Manual General De Instalación Y Operación página 40

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Lettering:
Variation higher than the measurement made by the WEG
No/little variation in relation to the measurment made by the
Variation lower than the measurement made by the WEG
Figure 5.6 – Comparing the measurements of a conventional device near the WEG Motor Scan standard mounting location.
When the measurements of the conventional vibration device are performed in traditional vibration data
collection points (suggested by ISO 10816-3), some variation is expected when compared to the values
measured by the WEG Motor Scan in its standard mounting point. Those values may be higher, similar or lower
than those measured by the WEG Motor Scan, depending on the motor condition and reference place for
comparison. Such variation is expected, and it is not a problem, as the WEG Motor Scan is intended to monitor
the evolution of the vibration levels. Due to those characteristics, it is recommended to set the alert and critical
levels of the WEG Motor Scan so as to adapt to the values measured by the conventional device. Figure 5.7
illustrates such condition.
Lettering:
Variation higher than the measurement made by the WEG
No/little variation in relation to the measurment made by the
Variation lower than the measurement made by the WEG
Figure 5.7 – Comparing the measurements of a conventional device made in the traditional points recommended by ISO 10816-3 to the
The standard alert and critical vibration levels defined in the WEG IoT Platform are the limits defined in ISO
10816-3 for motors installed in flexible bases, already considering 25% beyond the vibration limits of zones B
and C of the standard (Table 5.1). Those levels can be redefined by the user according to the motor operation
40 Manual of Electric Motors
measurements of the Motor Scan in its standard mounting point.