All machines with rotating parts vibrate. Their tolerance level
is specified in ISO specifications. Maximum performance is obtained
when these vibrations are kept within the specified limits. For
this purpose, periodic check known as preventive maintenance program
become necessary. The Vibration Meter manufactured by ACD is primarily
intended for improving the performance of rotating machines by
monitoring and logging the vibration levels.
Piezo electric Pick-up Transducer is the most sensitive
of its Kind available today. It has a built in mechanical filter
which eliminates all unwanted frequencies including Audio Pick-ups.
Inverted mass (r) construction, makes it unique, and usefulness
up to 100000 RPM without loosing the sensitivity.
Hand held sensor incorporates with transducer, a
signal conditioner and 8 db/octave filter which cuts off all the
unwanted signals and improves signals and improve signal to noise
ratio
Model D-83 reads DISPLACEMENT of Vibration in Microns
pk-pk. However, to decide severity or acceptance level of Vibrations
from Displacement, one has to know the operating speed.
Model D93, apart form "DISPLACEMENT" also
reads VELOCITY of Vibration in mm/sec pk This reading is obtained
by differentiating 'DISPLACEMENT with reference to the frequency,
Hence, it directly denotes the severity and one does not need
to refer to the operating speed to decide the acceptance level
