BK Precision 2560B Series, Руководство пользователя

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Trigger
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Setting Start Holdoff On
Figure 9.29 Start Hold-
off On
To set the start holdoff on:
1. Press the Setup key or use the touchscreen controls to enter the Trigger menu.
2. Use the touchscreen controls to select the Start Holdoff On option.
– The window shown in figure 9.29 will appear.
3. Use the touchscreen controls to select the desired start holdoff on.
9.7 Noise Reject
Noise Rejection adds additional hysteresis to the trigger circuitry. By increasing the trigger hysteresis band, the possibility
of triggering on noise is decreased, however the trigger sensitivity is also decreased. A larger signal is required to trigger
the oscilloscope when
Noise Rejection is enabled.
To enable Noise Rejection :
To set the start holdoff on:
1. Press the Setup key or use the touchscreen controls to enter the Trigger menu.
2. Use the touchscreen controls to select the Noise Reject option.
– Tapping Noise Reject will toggle between the on and off mode.
Disabled Enabled
Figure 9.30 Noise Reject
If the signal being probed is noisy, set up the oscilloscope to reduce the noise in the trigger path and on the displayed
waveform. First, stabilize the displayed waveform by removing the noise from the trigger path. Second, reduce the noise
on the displayed waveform.
• Obtain a stable display.
• Remove the noise from the trigger path setting Trigger coupling to LF Reject, HF Reject , or enabling Noise Reject .
• Set the Acquisition mode to Average to reduce noise.