Acquisition Mode - Tenma 72-14520 Instructions Manual

• Sampling rate refers to the time interval between two sampling points. The
maximum sampling rate of the UPO2000CS series is 1 GS/s.
• The sampling rate will be affected by the timing scale and the change of storage
depth. UPO2000CS oscilloscopes sampling rate is displayed in real-time at the top
of the screen in the status bar.
• The horizontal SCALE control can adjust the horizontal timebase or modify the
memory depth.
• Press ACQUIRE key to enter the sampling menu.
Functions
Sampling mode
Average
Storage depth
Low Sampling Rate Effect
• WAVEFORM DISTORTION: Due to low sampling rate, the details of the waveform
might be missing, the sampling waveform might be different than the actual signal.
• WAVE MIXING: When the sampling rate is 2 times lower than the actual signal
frequency (Nyquist frequency), the frequency of the reconstructed signal will be less
than the actual signal frequency.
• WAVEFORM LEAKAGE: Due to low sampling rate, the reconstructed waveform
might not reflect the actual signal.

Acquisition Mode

• To obtain a waveform from sampling points, press the ACQUIRE key then F1 to
switch between acquisition methods.
Normal Sampling
• In this acquisition mode, the signal is sampled and reconstructed with equal time
intervals. For most waveforms, the use of this mode can produce the best effect.
Peak Sampling
• In this acquisition mode, the maximum and minimum values of the input signal are
found at each sampling interval, and the waveform is displayed using these values.
This way, the oscilloscope can acquire and display a narrow pulse, otherwise the
narrow pulse might be missed in the normal mode. Noise might be enlarged in this
mode.
High Resolution
• In this acquisition mode, the oscilloscope can reduce random noise from the input
signal and generate smoother waveforms.
Options
Normal
Peak
High Res
Envelope
Average
In average sampling mode, use multi-purpose control to set
2~8192 average time, number can be in the range of 2
1~13
Auto Automatic storage depth
28k Set storage depth to 28kpts
280k Set storage depth to 280kpts
2.8M Set storage depth to 2.8Mpts
28M Set storage depth to 28Mpts
Description
29
, where n is
n