4-4
Rotation speed (min
-1
)
Standard vibration value at the bearing section
[For reference only]
Relation between the total amplitude (a)
and the vibration velocity (V)
a =
V×4×10
4
π
×n
a: Total amplitude (
μ
m)
V: Vibration velocity (mm/s)
n: Equipment rotation speed (min
-1
)
(10) Stop the pump.
Warning
Do not put your fingers or other objects into the opening of the motor.
Otherwise, it may lead to an electrical shock or injury.
(11) Make sure that you avoid running SP/SP-e with a small water quantity. The operation sound or
noise may become higher when it is running in this range.
Caution
Keep the cocks of the pressure gauges, compound pressure gages, and
other parts closed all the time except when they are used for
measurement. Otherwise, they become more susceptible to failure
Caution
Do not run the pump using the power beyond the allowable current value.
Otherwise, the motor may burn out.
80
60
40
20
10
600 800 1000
1500 2000
3000 4000
6000 8000
100
T
o
ta
l a
m
p
litu
d
e
(1
/1
0
0
0
mm)
