Elma Instruments VT-8204, Manual, Page: 33 / 40

Elma VT-8204 side 33
Vibration measuring procedure
Basic operation procedures
1. Plug in the " BNC plug " ( 3-12, Fig. 1 ) to the " BNC socket " ( 3-15, Fig. 1 ).
2. Power on the meter by pressing the " Power button " ( 3-2, Fig. 1 ).
3. a) For the Acceleration measurement, press the " Unit button " ( 3-6, Fig. 1 ) once until the
display show the " ACC ", " m/s^2 ", " RMS " symbol or the " ACC ", " g ", " RMS " symbol.
b) For the Velocity measurement, press the " Unit button " ( 3-6, Fig. 1 ) once until the display
show the " VEL ", " mm/s " and " RMS " symbol or the " VEL ", " cm/s " and " RMS " symbol.
c) For the Displacement measurement, press the " Unit button " ( 3-6, Fig. 1 ) once until the
display show the " DISP(P-P) ", " mm " symbol.
4. If the surface material of measuring article is not the ferrous material, hold the vibration sensor
by hand & touch the sensor to the surface of the measuring article, refer the Fig. 2
5. If the surface material of measuring article is the ferrous material, connect " Vibration sensor
" ( 3-13, Fig. 1 ) with the " Magnetic base " ( 3-14 ), refer Fig. 3.
Put the whole unit ( Vibration sensor & Magnetic base ) to the surface of measuring article,
refer Fig. 4.
Unit selection ( Imperial/Metric )
During the measurement, press the " Unit button " ( 3-6, Fig. 1 ) at least 2 second continuously, the
display unit can be changed from the Imperial unit to Metric unit or be changed from Metric unit to
Imperial unit.
The Metric unit are :
Acceleration measurement is m/s^2 or g.
Velocity measurement is mm/s or cm/s.
Displacement ( p-p ) measurement is mm.
The Imperial unit are :
Acceleration measurement is ft/s^2.
Velocity measurement is inch/s.
Displacement ( p-p ) measurement is inch.