Manfred Weber
Metra Mess- und Frequenztechnik in Radebeul e.K.
PC Vibration Measurement System VibroMetra

Unified indicators

All VibroMetra modules have status bars showing the following indicators:


This field shows the sensor type connected with the channel. A red indicator warns if the instrument was started without assigning a sensor to the channel. In this case the measuring signal will be a voltage.


This is the name of the measuring channel or a standard text if no name was entered.


The gain range that was selected on this channel.


This indicator becomes red if the peak amplitude of the signal is > 95 % of the magnitude which the USB devices can handle without clipping.
To lower the magnitude you may switch to a lower gain.


If the unfiltered and unweighted measuring signal drops for at least 3 second s below 1 % of the full scale value this indicator becomes yellow. This is a warning that the accuracy may decrease. To increase the magnitude you may switch to a higher gain.
Underload is not a problem in periods when there is no relevant signal.