VOLTCRAFT PLUS DSO 4022 - Hardcopy Key; Help Key; Horizontal Menu Key; Math Key 1;2

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21

Hardcopy key

→ See Utility key (page30)

Help key

Turn help mode on/off

Help

Horizontal menu key

Select main (default) display

Main

Select window mode

Window→TIME/DIV

Zoom in window mode

Window Zoom

Select window roll mode

Roll

Select XY mode

XY

DSO-4000 User Manual

22

Math key 1/2

Math on/off

Math

Select math operation type (+/–)

Operation

Select addition/subtraction

CH1+/-CH2

Set result position

Position→VAR

Math result Volt/Div

Unit/Div→VAR

Math key 2/2

Math on/off

Math

Select math operation type (FFT)

Operation

Select FFT source channel

Source

Select FFT window

Window

Select FFT result position

Position→VAR

Select vertical scale

Unit/Div

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