User Manual Save To USB: Save the current screen image to a USB external storage device. Decode: Display protocol decoding, set the main parameters of decoding. For details, see 2.8 Protocol Decoding . Time/Div: Press the time base knob to enter the dual window display mode. Press the knob again to exit the dual window display. 2.15.1. AUTO SCALE Auto Scale is one of the advantages digital oscilloscopes have. When you push the Auto Scale button, the oscilloscope will identify the type of waveform (sine or square wave) and adjust controls according to input signals so that it can accurately display the waveform of the input signal.
Acquire Mode Adjusted to Normal or Peak Detect Cursor Off Display Format Set to YT Horizontal Position Adjusted Display Type Set to Vectors for an FFT spectrum; otherwise, unchanged SEC/DIV Adjusted Trigger Coupling Adjusted to DC, Noise Reject or HF Reject Trigger Holdoff Minimum Trigger Level Set to 50% Trigger Source Adjusted; Auto Scale can not be used for the EXT TRIG signal Trigger Mode Auto Trigger Slope Adjusted Trigger Type Edge Trigger Video Sync Adjusted Trigger Video Standard Adjusted Vertical Bandwidth Full Vertical Coupling DC (if GND was chosen before); AC for the video signal; otherwise, unchanged VOLTS/DIV Adjusted The Auto Scale function examines all channels for signals and displays corresponding waveform.
Auto Scale determines the trigger source according to the following conditions. If multiply channels get signals, the oscilloscope will use the channel with the lowest frequency signal as the trigger source. If no signals are found, the oscilloscope will use the lowest-numbered channel displayed in Auto Scale as the trigger source. If no signals are found and no channels are displayed, the oscilloscope will display and use Channel 1 as the trigger source. When you use the Auto Scale function and the oscilloscope determines that the signal is similar to a sine wave, the oscilloscope displays the following options.
Multi-Period Display multiple periods that have appropriate vertical and horizontal scales. Single-Period Set the horizontal scale to display about one period of the waveform. 51 / 67 Functions Settings Wave Options Details