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Detector III
A
OK
Ty pical for a new machine.
B
OK
Condition of machine is suitable for continuous operation.
C
Pre-alarm
Condition of machine is no longer suitable for continuous operation;
limited operating duration possible in this state.
D
Main alarm
Hazardous v ibrational state, damage to the machine may be
imminent.
(Source: ISO 10816-1)
Classes
Explanation
I
Components of motors and machines rigidly connected w ith the complete machine
under the usual operating conditions (ty pical: driv e motor up to 15 kW output).
II
Medium-sized machines (ty pical: 15 kW to 75 kW output) w ithout special foundations,
rigidly constructed motors and machines (up to 300 kW) on special foundations.
III
Large motors and other large machines w ith rotating masses, constructed on rigid and
heav y foundations that are relativ ely stiff in the direction of the v ibration that is
measured.
IV
Large motors and other large machines w ith rotating masses, constructed on foundations
that are relativ ely forgiv ing in the direction of the v ibration (e.g. turbo generating sets and
gas turbines w ith an output greater than 10 MW).
Select
Single measurements
>
ISO 10816
and then the desired class.
The measurement is performed accord to the CM measurement
. Finally a
summary of the results including the alarm status
is displayed. The
demodulation value is shown without alarm status.
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