PCE Health and Fitness VM 20 User Manual page 27

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
Then press the Back key
Function Description
Low Freq Lower frequency limit
Hi Freq Upper frequency limit
FFT lines FFT resolution
Trigger Not available
Averaging Averaging
Window Window setting
ISO Group ISO setting
(Must be adapted to
the machine type in
line with the chart
under 5.1)
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
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
keys and change the values with the
to go back to measurement mode selection.
Values
1, 2, 10 Hz
200 ... 10000 Hz for acceleration measurement
200 ... 5000 Hz for velocity measurement
200 ... 800
400, 800, 1600 lines
0 ... 64 values, 0 = averaging deactivated
Hanning, rectangular
R1&3: group 1&3 hard
F1&3: group 1&3 stretch
R2&4: group 2&4 hard
F2&4: group 2&4 stretch
© PCE Instruments
keys.
Hz for displacement measurement
/
24
. The measurement will