We are using Vibexpert II from pruftechnik for vibration measurements,while i took phase readings from one of our asset the phase angle is fluctuating continuously(Fluctuation is above 10 degree) during continuous measurement,and also we tried to take different readings from same measuring point and we are getting different phase angles during each measurement.
i)is that an issue with the device or asset?
ii)If this is an issue with the asset what are all things i need to consider while diagnosing unbalance?
iii)If this is in issue with the Device can anyone advise me?
iv)What is the acceptable phase angle fluctuation during continuous mode measurement?
Any help would be great!Thanks!