User manual

4
72-9355 / 72-9360 / 72-9365 / User Manual
Do not operate the unit with the chassis cover open or removed: Do not operate this
unit when the outer cover or front panel is open.
Use suitable fuses: Only use specified fuse types and rated specifications.
Avoid exposing circuitry: When power is on, never make contact with exposed adaptor or
components.
When any fault is suspected, stop operation: If you suspect a fault, ask a qualified
maintenance professional to carry out inspection.
Maintain good ventilation.
Do not operate in humid condition.
Do not operate in combustible and explosive conditions.
Keep the product surface clean and dry.
Safety Messages and Symbols
Safety terminology used in this manual. The following messages may appear in this
manual:
Warning: Warning statements identify conditions or practices that could result in
injury or loss of life.
Caution: Caution statements identify conditions or practices that could result in
damage to this unit or other properties.
Messages on the product: The following messages may appear on the product:
“Danger” means potential damage or injury risk is immediate if not properly observed.
“Warning” means potential damage or injury risk is high if not properly observed.
“Caution” means possible damage to this product or other properties is elevated.
Preface
This manual provides information on the operation of the Tenma 72-93xx digital storage
oscilloscope series. Guidance is given in several chapters as follows :
Chapter 1 ⎯ User Guide: Simple guide to oscilloscope functions and installation
Chapter 2 ⎯ Instrument Setups: Guide to operation
Chapter 3 ⎯ Practical Illustrations: Provided to solve various testing problems
Chapter 4 ⎯ System Prompts and Trouble-shooting
Chapter 5 ⎯ Servicing and Support
Chapter 6 ⎯ Appendixes
Appendix A: Technical Indicators
Appendix B: Accessories
Appendix C: Maintenance and Cleaning
Appendix D: English and Chinese cross reference for the front panel