PCE Health and Fitness VM 20, Руководство пользователя

Страница: 27 / 36

© PCE Instruments
24
Eng
li
s
h
5.1.1 Setting the measuring mode
When you see the desired measuring mode on the screen, press the
Menu key
to enter the sub-menu. Navigate to the settings you wish to
make by using the keys and change the values with the keys.
Then press the Back key to go back to measurement mode selection.
Function Description Values
Low Freq Lower frequency limit 1, 2, 10 Hz
Hi Freq Upper frequency limit
200 … 10000 Hz for acceleration measurement
200 … 5000 Hz for velocity measurement
200 … 800 Hz for displacement measurement
FFT lines FFT resolution 400, 800, 1600 lines
Trigger Not available /
Averaging Averaging
0 … 64 values, 0 = averaging deactivated
Window Window setting Hanning, rectangular
ISO Group ISO setting
(Must be adapted to
the machine type in
line with the chart
under 5.1) R1&3: group 1&3 hard
F1&3: group 1&3 stretch
R2&4: group 2&4 hard
F2&4: group 2&4 stretch
5.1.2 Measurement
If you have not yet selected a measuring mode, start with chapter 5.1 Vibration measurement.
Otherwise confirm your selected measurement mode by pressing Enter
. The measurement will
be started. In the following image, you can see FFT mode. The display will look the same in any
measurement mode. Only the parameters are different.
1. FFT graphic
2. FFT mode
3. Peak-Peak value
4. Max. amplitude and frequency of FFT
5. Unit of measuring mode
6. Current RMS value