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- Manuals
- 1
- Languages
- ZH
- Last added
- 2012-01-12
Featured GDS-820/840 manuals

Good Will Instrument GDS-820/840 Digital Storage Oscilloscope User Manual
The GDS-820/840 series is a dual‑channel digital storage oscilloscope with bandwidth up to 250 MHz and a 5.7‑inch LCD display. It offers multiple acquisition modes, automatic measurement functions, and interfaces such as USB, RS‑232, GPIB, and printer ports.
The manual provides safety symbols, product introduction, first‑time setup, panel descriptions, operation instructions, and detailed specifications, including power requirements, dimensions, and environmental limits. This manual is written in Chinese.
Covers: Safety Terms and Symbols · Product Introduction · First Operation · Panel Introduction · Operation Instructions · Trigger Control
Latest GDS-820/840 manuals
Good Will Instrument GDS-820/840 Digital Storage Oscilloscope User Manual
User Manual 30 pages · 819 KB · ZHUser manual for the Good Will Instrument GDS-820/840 digital storage oscilloscope covering operation, safety, and specifications.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in GDS-820/840 manuals
What interfaces are available on the GDS-820/840 oscilloscope?
The instrument provides a printer port, RS‑232, USB, and a GPIB interface.
From: Good Will Instrument GDS-820/840 Digital Storage Oscilloscope User Manual
How many panel setting groups can be stored?
The oscilloscope can store 15 groups of panel function settings and two waveform trace sets.
From: Good Will Instrument GDS-820/840 Digital Storage Oscilloscope User Manual
