We're facing a problem with the Hydraulic Coupling of boiler feeder pump. The absolute vibration taken by CSI2140 is very high at all directions, at the moment, it's more than 10 mm/s. This has happened for a long time and can't find the answer.
- Input:1500 rpm; Output: 5971 rpm
Only 1X of output shaft dominates. The spectrum is below:
But the relative vibration of this shaft (taken by online system) is very small, about 20 um.
If you have any ideal, please help me, all opinions would be welcomed.
Sorry if my English is not clear.