Rion VM-55, Instruction Manual, Page: 84 / 204

72
Measurement
All processing functions provided by the unit (
L
eq
,
L
max
,
L
min
,
L
5
,
L
10
,
L
50
,
L
90
,
L
95
) are carried out simultaneously. When equivalent continuous level
is measured, the maximum value, minimum value and percentile vibration
level are also determined.
When the [Store] screen selected from the menu list screen has been used
to set the measurement channels to “XYZ”, measurement and calculation
processing are carried out for the three axes. If the measurement channel
has been set to “Z”, measurement and calculation processing are carried out
only for the Z axis.
Before starting measurement, be sure to set the date and time as described
on page 32.
Vibration level (
L
v
) and vibration acceleration level (
L
va
)
measurement
The procedure for measurement is described below.
Preparations as described in the “Preparations” chapter must be completed fi rst.
1. Press the POWER key to turn the unit on.
After the power-on screen has been shown, the measurement screen
appears.
The measurement parameter settings that were active before the unit
was turned off will be established again. Therefore the actual display
may not always be the same.
Note
After turning power on, wait at least one minute
before starting measurement, in order to allow the
circuitry of the unit to stabilize. Compared to the
VM-53/53A, the time required for stabilization is
somewhat longer.
2. Set the measurement channel displayed on the measurement screen.
Use the keys on the menu list screen to select [Store]
and press the MENU/ENTER key. The store screen appears.