Svantek SV 973 - Page 89

SVAN 973 User Manual
89
Gradient +
Type of trigger that starts the 1-second
measurement/ integration under the condition:
value of the RMS result (Source) integrated during
0,5 ms is greater than the threshold level (Level)
and the gradient of this Source is greater than the
threshold level (Gradient). In other cases, the
instrument continues checking the trigger
condition every 0.5 ms. During one measurement
cycle the instrument performs as many 1-second
integrations as many seconds the
Integration Period consists and stops the
measurement cycle.
This type of trigger has the same logic as Level +
trigger, but the trigger condition requires also
gradient level to be exceeded.
Manual
4.2
Source
Measured result that is compared with the
threshold level (Level) for triggering – RMS
measured in the first profile: Leq(1).
Manual
4.2
Level
Threshold level of the Source for trigger condition
fulfilment.
Manual
4.2
Gradient
Threshold level of the source signal value speed
of changing (Gradient) for trigger condition
fulfilment.
Manual
4.2
Statistical
Levels
Screen that enables setting a boundary level (Ln)
surpassed by the temporary noise level values in
not more than nn% of the observation period. The
user can define ten statistical levels, named from
N1 to N10, to be calculated, displayed and saved
in the files together with the main results.
Manual
4.8
Appendix D
Timer
Screen that enables configuring automatic
switching On the instrument and performing the
measurement on the programmed time with
defined setup. Timer can be Single or repeatable
(Multiple).
After every timer cycle, the instrument
automatically switches itself off.
Manual
4.9