MONI LOG EnDal smart Instruction Manual page 38

PC SOFTWARE – MONI LOG® ANALYZER
Shock recording:
The shock recording begins, when the value of the acceleration exceeds the triggering threshold.
The triggering threshold is configured internally by the device and depends on the set magnitude
threshold (triggering threshold = ½*magnitude threshold, minimum: 500 mg). This way,
processes which lie chronologically before the actual exceeding of the magnitude threshold are
also registered.
A shock event is saved if the recording thresholds for shock magnitude, shock strength and
shock duration are at least fulfilled.
The largest single pulse within the scanning time of 1024 ms is considered as a shock event,
which meets all set conditions (shock magnitude, shock strength, shock duration). A single pulse is
deemed to be completed, if all three channels (x,y,z) are below 200 mg according to magnitude
for more than 100 ms (fading condition). The shock pulses are compared with each other
regarding their shock strength (corresponds to time integral over the course of the shock
magnitude).
The following should be explained on the basis of Figure 24. The 1
the recording and fades away again very quickly here. The following 2
repeated exceeding of the triggering threshold (1). At point (2), all channels fall below the
200mg limit, however, not longer than 100 ms (3). At point (4), the fading condition is finally
fulfilled and the 2 pulse is completed. More than 200 milliseconds after that, the 3
nd
Figure 22: Shock curves graph
Start of recording
Magnitude r exceeds the
magnitude threshold (3 g)
Channel exceeds the
triggering threshold (1.5
g)
Figure 23: Criteria for the shock recording
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EnDaL smart
pulse begins with the start of
st
nd pulse begins with the
pulse is
rd