User Manual
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Contents
QC1938 Digital Storage Oscilloscope........................................................................................................................................ 1
Copyright Declaration.................................................................................................................................................................2
General Safety Summary............................................................................................................................................................3
Safety Terms and Symbols......................................................................................................................................................... 4
Product Scrapping.......................................................................................................................................................................4
Contents........................................................................................................................................................................................5
QC1938 digital storage oscilloscope introduction.................................................................................................................... 8
1. Quick start................................................................................................................................................................................9
1.1. General Inspection............................................................................................................................................................. 9
1.2. Prepare Instrument for Use................................................................................................................................................9
1.3. Brief Introduction of Front Panel...................................................................................................................................... 9
1.4. The user interface............................................................................................................................................................ 11
1.5. Functional Check............................................................................................................................................................. 12
1.5.1. Connect the oscilloscope..........................................................................................................................................12
1.5.2. Observe the waveform..............................................................................................................................................12
1.6. Probe Introduction........................................................................................................................................................... 12
1.6.1. Safety........................................................................................................................................................................12
1.6.2. Manual Probe Compensation.................................................................................................................................. 13
1.6.3. Probe Attenuation Setting........................................................................................................................................ 13
2. Function Introduction........................................................................................................................................................... 14
2.1. Menu and Control Keys...................................................................................................................................................14
2.2. Connector.........................................................................................................................................................................15
2.3. Multi-function Knobs and Softkeys.................................................................................................................................16
2.4. Oscilloscope Setup...........................................................................................................................................................16
2.5. Horizontal Controls......................................................................................................................................................... 16
2.6. Vertical System................................................................................................................................................................17
2.6.1. Vertical Controls......................................................................................................................................................17
2.6.2. Math Operation........................................................................................................................................................18
2.7. Trigger System.................................................................................................................................................................21