The figure below displays the oscilloscope settings tab.

• Ts min buffer - list that allows selecting the minimum sampling period and if less it will be buffer reading. In this case the minimum period equal to 10 uS (Fs =100 KHz) is set, i.e. for the sampling periods of 9 uS...5 uS (Fs =111 KHz...200 KHz) it will be buffer reading and for the sampling periods of 10 ms...10 uS (Fs =100 Hz...100 KHz) it will be pipe reading. Ts min buffer is determined by experiment on the basis of several measurements. For example, it is first necessary to set Ts min buffer = 5 uS, i.e. within any sampling period it will be pipe reading and perform the measurements for Ts=5 uS (Fs =200 KHz) as well and if there is not any signal distortion it means that your computer and operating system can transfer data at maximum speed. In case of any distortion, it is necessary to increase the sampling period, e.g. up to 6 uS (167 KHz) and perform the measurements again and etc. Upon determining the sampling period without any distortion in measurement results it is expedient to set it as min. What are the reasons?
• Pretrigger - allows presetting a number of samples to be stored until triggering. On the time base this waveform portion is within negative part, i.e. signal before triggering event - up to zero and signal after triggering - after zero.
• Buffer size 1024/512 bytes - forced reduction of buffer size from 1126(1 channel)/563 (2 channels) samples up to 1024/512. Why do we tick off this flag? FFT is used for filtering and as is known, the number of samples for FFT has to be 2^n, i.e. if the filter is on for any channel this will lead to automatic buffer depth reduction up to 1024/512 samples that will cause some perplexity, e.g. why the signal for the channel A (no filter) is longer than the signal for the channel B (available filter). If there is nothing daunted for you, do not tick off this flag that will add 102/51 samples if the filter is not used.
• Memory depth - while pipe reading it is determined by the available memory size in computer and in the oscilloscope mode it is artificially limited by 65535 samples for the channel as if the memory depth is large it is inconvenient to preview the periodic waveform (it is recommended to use the recorder for analysis of nonperiodic or very long signals).
• Disable averaging - this flag disables to reduce the period (increase frequency) of sampling and perform averaging for several samples (arithmetic average).
• Reference to the screen/reference to the signal - this flag sets reference of triggering markers, if the reference to the signal is selected the triggering marker will synchronously move within the screen when changing time base or shifting zero while keeping the given position in Volts.
• Filter auto on - enables to turn on [+] On the corresponding filter upon setting its parameters.
• Triggering auto on - enables to turn on triggering automatically when pressing any button from the panel "Triggering".
• Show the reading mode information (buffer/pipe) - enables to show the reading mode information to the panel "Period".