Electronic Vibration Switch Is Designed As Direct Replacement Of Mechanical Vibration Switches.

These Mechanical Switches being used in yester years have very little merit and served the purpose when the requirement was not stringent. As they rely on large impacts or inertia (both acceleration): they do not respond to gradual increase in vibrations. Nuisance tripping during start-up is an usual problem. Further, sensitivity adjustment is too ambiguous to offer any meaningful translation.

Vibration Meter

» D-83: Displacement 0-2000 mircons pk-pk
» D-93: Displacement 0-2000 mircons pk-pk and Velocity 0-200 mm/sec pk

» Sensor : 200 gms
» Instrument : 460gms.
» Total with carry cas : 1100 gms

» Carry case 210x180x75

» Sensor - Piezo Electric Accelerometer
» LCD 31/2 Digit Display
» 600 - 60,000 r.p.m Response
» 1 - 2000 microns pk-pk DISPLACEMENT measurement
» 1 - 200 m m/sec pk VELOCITY measurement
» Accuracy confirming to ISO 2954

All machines with rotating parts vibrate. ISO provide guide lines for specifying it's tolerances. Maximum performance is obtained when these vibrations are kept within the specified limits. For this purpose, periodic check known as preventive maintenance program becomes 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 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 construction, makes it unique, and extends usefulness upto 60,000 R.P.M. without loosing the sensitivity.

Hand held sensor incorporates transducer with a signal conditioner and 8 db/octave filter, which cuts off all the unwanted signals and improves 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 D 93, apart from '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.
Instrument is battery operated and very convenient to handle.