6. Measurement
6.1. Measurement Value Display
In the top margin of the screen (18) the battery power is displayed. Next to this the
date and time are also indicated..
Below the measurand (v: 10 Hz-1 kHz RMS) the currently measured value.
The display “No Point ID” indicates that a measurement point number has not been
identified.
Note: The decimal point may appear in one of two positions, dependent on the mea-
surand. This is due to the automatic gain switch-over. In this way smaller measur-
ands with high resolutions are sure to be detected
6.2. Selecting the Display Quantity
With keys ◄► you can select from among the six available operation modes:
•
Vibration acceleration 0.2 Hz – 10 kHz
•
Vibration acceleration 3 Hz – 1 kHz
•
Vibration acceleration 1 kHz – 10 kHz
•
Vibration velocity 2 Hz – 1000 Hz
•
Vibration velocity 10 Hz – 1 kHz
•
Vibration displacement 5 Hz – 200 Hz
By pressing F2 you can switch between RMS and peak value.
The RMS is the so-called “true” root mean square.
The peak value, also known as crest or maximum value, is the highest vibration
value since the last displayed value.
Note: When saving measurement values (chapter 6.4) the RMS and peak value are
always saved irrespective of the currently selected setting.
If the sensor locates a VMID measuring point which is already saved in the VM24
memory, in order to prevent unintentional switch-over, a warning signal will be dis-
played when the measurand changes (19). By pressing OK the measuring range can
still be changed. The warning signal will not appear again until the next measuring
point is detected .
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Figure 18: Measurement display
