User manual

EXTECH INSTRUMENTS
5 VB450-en-US_V1.0 6/15
Operation
Battery Installation and Replacement
Remove the rear battery compartment door by sliding in the
direction of the arrow. Install or replace 9V battery (observe
polarity) and replace the cover.
During operation, if the symbol appears in the display
the battery needs to be replaced.
Selecting units of measure
Press and hold the power button. The display will illuminate
and an arrow will indicate the units selected. Slide the function
switch on the top of the meter to select the units desired.
m/s
2
Acceleration
Meters per second
squared
PEAK
mm/s
Velocity
Millimeters per second
squared
RMS
m
Displacement
micrometers
Peak to
Peak
Measurements
Attach the sensor to the device to be measured with the
magnet or hold the sensor for nonferrous materials. Press and
hold the power button to display the results. Release the
power button to freeze the results in the display. After 60
seconds the meter will automatically shut off.