Syscom Video MR3000C User Manual page 27


With the Pre-event time, you set-up how long you want to record before the MR is triggered.
You can record up to 30 seconds backward.

With the Post-event, you set-up how long you want to continue recording after the trigger
has become idle. If the MR is triggered again during the post-event time, the post-event
countdown will restart from the beginning and the MR keeps on recording in the same file.
The maximum value for the post-event is 100 s.

The Maximum length setting allows you to choose the maximum length of an event file. If
this limit is reached, the MR closes the file. If the MR is still triggered it will start recording a
new file. The maximum value is 1800 s.
NOTE: The maximum length is a fundamental setting for alerting service – see chapter 4.4.3.
NOTE: The sum between pre-event and the post-event duration should not exceed the max
event length, in order to have only one file created. Otherwise, the event will be
divided in more than one file.
Each channel (X, Y horizontal and Z vertical) has its own trigger threshold level that is set-up in the
section Level. If the vibration exceeds the threshold level on a specific channel, the trigger
condition becomes true for this channel.
In the section Combination you choose which channels are needed to fulfill the general trigger
condition and subsequently lead the instrument to start recording. You may consider only 1 axis
(=channel, e.g. Z vertical), or more. If you consider more than one Axes, you can decide if the MR
is triggered when all the axes are above the level, or just one of them. You choose it with the
AND/OR Logic. A common setting is to consider all 3 axes, and trigger when any of them has
reached the trigger level ("OR").
The trigger level may be automatically adjusted to the actual level of vibration if you activate the
Trigger increment option. After each event or when the Maximum length of the recording is
reached (see above), the trigger level is increased by the amount given as Increment step. It is
decreased by the same amount after the period specified in Decrement Time has elapsed and no
further event has been recorded.
MR3000CMR3000C_TR_v2.0_rev1.odt
Figure 4.1.2. Trigger recording interface, in case of velocity sensor.
subject to technical change without notice
27