Pepperl+Fuchs VIM3 IO Series Manual page 9

VIM3*-IO-* Vibration Sensors
Product Description
The following figure depicting the vibration monitoring shows the operating range, which is lim-
ited by the maximum measurable vibration velocity in mm/s depending on the frequency. The
area above the curve shows the operating range that cannot be measured when recording the
vibration velocity, because the frequency is too high. The sensor outputs the vibration velocity
value that can only just be detected.
Example for a version with a measuring range of 128 mm/s:
• Assumption: Application vibrates at 80 mm/s at 400 Hz
• Sensor output: 64 mm/s
This is the vibration velocity value that can only just be detected at this frequency.
Figure 2.1
1 Frequency in Hz
2 Vibration velocity in mm/s
3 Operating range of vibration monitoring
Reading Example
Frequency (Hz) Maximum Measurable Vibration Velocity (mm/s)
250
400
1000
Table 2.1
103
64
25
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