r/VibrationAnalysis

PdM tells you when. That was never the hard part.
▲ 3 r/VibrationAnalysis+3 crossposts

PdM tells you when. That was never the hard part.

Most PdM deployments end up here: dashboard says bearing fails in 3 weeks. Then someone still has to figure out why, cross-reference the ops logs, pull the manual, check the line context, decide the fix.

The prediction was the easy part. The diagnosis is where the time goes.

Most orgs are closer than they think. If you have SCADA or ops logs, the raw material is already there.

Has anyone made the jump from classical PdM to something more diagnostic? Where did the friction actually show up?

u/groundupAI — 9 days ago

Which standard to follow for 1400 rpm 1.5kw centrifugal pump and motor.

I am performing vibration analysis on a horizontal single-stage, single-suction centrifugal pump driven by a 1.5 kW, 50 Hz induction motor operating at about 1400 r/min.

I am confused about which ISO vibration standard should properly apply to this machine set.

  • ISO 20816-3 appears to apply only to machines above 15 kW.
  • ISO 10816-7 includes pump categories below 200 kW.

Would my pump-motor set fall under ISO 10816-7 despite the low motor power? If 20816-3 wont apply to motors less than 1.5 kw, then would i consider motor and pump seperately, or evaluate the system as a whole using 20816-1?

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u/Equivalent-Oil9441 — 10 days ago