© PCE Instruments
25
Eng
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Machine groups:
Group 1:
Large machines with nominal power > 300 kW;
Electrical machines with shaft height > 315 mm
These machines generally have plain bearings and the
rated/operating speeds range from 120 RPM to 15,000 RPM.
Group 2:
Machines with nominal power between 15 kW and 300 kW;
Electrical machines with shaft height between 160 mm and
315 mm.
Vibration severity zones for vibration velocity according to ISO standard 10816-3
Vibration severity zones for vibration displacement according to ISO standard 10816-3
5.1.4
Display max value
This sub menu is used to activate the display of the max value function. When enabled the max
value during a measurement session is displayed under the current measurement value. The
BACK
button can be used to reset the max value.
mm/s
in/s
rigid
flexible
rigid
flexible
> 11.0
> 0.43
D
7.1 ... 11.0
0.28 ... 0.43
C
4.5 ... 7.1
0.18 ... 0.28
C
C
3.5 ... 4.5
0.14 ... 0.18
2.8 ... 3.5
0.11 ... 0.14
2.3 ... 2.8
0.09 ... 0.11
1.4 ... 2.3
0.06 ... 0.09
< 1.4
< 0.06
A
D
D
Group 2
Vibration velocity
Group 1
D
B
B
C
B
A
B
A
A
µm
mil
rigid
flexible
rigid
flexible
> 140
> 5,51
D
113 … 140
4,45 … 5,51
90 … 113
3,54 … 4,45
71 … 90
2,80 … 3,54
57 … 71
2,24 … 2,80
45 … 57
1,77 … 2,24
37 … 45
1,46 … 1,77
29 … 37
1,14 … 1,46
22 … 29
0,87 … 1,14
< 22
< 0,87
A
Vibration displacement
Group 1
Group 2
D
D
D
C
C
C
B
C
B
B
A
B
A
A
