Svantek SV 977D - Page 152

152
SV 977D User Manual
Measurement
Trigger
Screen that enables configuring trigger of the
measurement/integration process with parameters:
Trigger, Source, Level and Gradient.
Chapter
4.2
Trigger
Position that switches Off or on the measurement trigger
by selecting its type: Slope +, Slope –, Level +, Level –,
Grad + or External.
If the instrument is waiting for the trigger condition, the
appropriate trigger icon is flashing on the display
alternatively with the „measurement” icon.
Chapter
4.2
Slope +
Type of trigger that starts the measurement/integration
by the duration of the Integration Period on condition:
rising value of the RMS result (Source) integrated during
0,5 ms passes above the threshold value (Level).
Chapter
4.2
Slope -
Type of trigger that starts the measurement/integration
by the duration of the Integration Period on condition:
falling value of the RMS result (Source) integrated during
0,5 ms passes below the threshold value (Level).
Chapter
4.2
Level +
Type of trigger that starts the 1-second measurement/
integration on condition: value of the RMS result (Source)
integrated during 0,5 ms is greater than the threshold
value (Level). In other cases, the instrument continues
checking the trigger condition every 0,5 mc. During one
measurement cycle the instrument performs as many 1-
second integrations as many seconds the
Integration Period consists and stops the measurement
cycle.
Chapter
4.2
Level -
Type of trigger that starts the 1-second measurement/
integration on condition: value of the RMS result (Source)
integrated during 0,5 ms is lower than the threshold value
(Level). In other cases, the instrument continues
checking the trigger condition every 0,5 mc. During one
measurement cycle the instrument performs as many 1-
second integrations as many seconds the
Integration Period consists and stops the measurement
cycle.
Chapter
4.2
Grad +
Type of trigger that starts the 1-second measurement/
integration on condition: value of the RMS result (Source)
integrated during 0,5 ms is greater than the threshold
value (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 mc. 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.
Chapter
4.2