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Chapter 4, Description of Fields
Fields
Trig-Delay
The trigger delay is used to specify the time relationship between the trigger and
displayed signal.
• Positive values delay the measurement trigger by a specific period. The delayed
trigger point is the left edge of the screen.
• Negative values perform a pre-trigger function, displaying a section of the waveform
before the trigger point. The trigger point is indicated by small pointers that appear at
the top and bottom of the screen.
Operating Considerations
Negative Values.
The maximum negative delay cannot exceed ten divisions of the
current Time/Div setting. For example; if the
Time/Div field is set to 1 ms, the
maximum allowed negative delay is -10 ms. Larger negative numbers cause an
Excessive negative Trig-Delay will be truncated. message.
Positive Values. For Time/Div settings of 50 ms/Div and smaller, the maximum
delay is 400 ms.
For
Time/Div settings of 100 ms/Div and larger, the maximum delay is 3200 ms.
Resolution. For delays of 400 ms and less, the resolution is 6.4 ms. For delays
greater than 400 ms, the resolution is 51.2 ms. All entries are rounded to the
nearest multiple of 6.4 ms or 51.2 ms (depending on the delay value).
Screens Where Field is Present
OSCILLOSCOPE