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E
Vibration measurement
E:9
Data for ISO 10816 part 3
Part 3 treats most of the common industrial machines.
They are divided into 4 groups:
Group 1
Large machines with rated power above 300 kW and not more
than 50 MW; electrical machines with shaft height above 315 mm.
Group 2
Medium machines with rated power above 15 kW up to and
including 300 kW; electrical machines with shaft height from 160
mm to 315 mm.
Group 3
Pumps with multivane impeller with
separate driver (centrifugal,
mixed flow or axial flow) with rated power above 15 kW.
Group 4
Pumps with multivane impeller with
integrated
driver (centrifugal,
mixed flow or axial flow) with rated power above 15 kW.
Further criteria for Part 3 are the rigidity of the foundation and
the rotational speed.
Concrete foundations are rigid, every thing else falls under flex-
ible.
The RPM affects the lower measuring range as well as the limit
values.
Please note that correct measurement of very low frequency
vibration demands a transducer that is linear down to the stated
frequency. Abnormally high displacement values can occur when
selecting a lower frequency limit that is outside of the trans-
ducer’s range.
For machines under Part 3, Leonova
returns both VEL and DISP. Machine
condition is determined by the
quantity that has the relatively
highest measurement results.
Press F3 to confirm the settings.