F.W. Bell 8000 series, Инструкция по эксплуатации

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F.W. BELL 8000 Series Gauss/Tesla Meter Instruction Manual
Section 7 – Waveform Display 7-6
Trigger Slope
The trigger slope setting is used in combination with the trigger level
setting to determine the desired trigger point for capturing events in
Repeat and Single trigger modes. It can be set to either Positive or
Negative slope.
For a positive slope, the signal being analyzed must be increasing in
value while passing the trigger level to initiate a trigger. Likewise for a
negative slope the signal must be decreasing in value while passing the
trigger level. In either setting trigger levels with a slope opposite of the
setting will be ignored.
Refer to Figure 7-1 for the location of the slope indicator on the waveform
display.
Trigger Level
The trigger level can be set manually by entering the trigger level menu
and using the hot keys to move the active digit to the left or right,
increment or decrement the active digit, change the polarity of the level
entry, or reset the level to zero.
The input trigger level is used in combination with the slope setting to
create a trigger point level in Repeat and Single trigger modes. Settings
to the trigger level can still be made while operating in Free Run or Auto
modes but they will not be used.
A trigger level indicator is displayed on the right hand graticule to indicate
that it is active and the location of the trigger level relative to the selected
vertical scale. If the trigger level is outside of the selected scale the
arrow will point up or down off scale. Refer to Figure 7-1 for the location
of the trigger level on the waveform display.