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Tenma 72-7630 Instructions Manual page 32

4 channel digital storage oscilloscope

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MAINTENANCE
Cleaning
Periodically wipe the case with damp cloth and mild detergent. Do not use
abrasives or solvents for cleaning. Disconnect from the mains first.
Clean the measurement probe tips occasionally, as dirt on the probes can affect
reading accuracy.
Take care to avoid scratching the glass display when cleaning the LCD.
Do not leave the oscilloscope where the LCD screen will be exposed to strong
direct sunlight for long periods.
FACTORY SETUP
When you press UTILITY and choose factory setup, the following options are set:
System
Vertical System
Horizontal System
Trigger System
Acquisition
Other system
INFORMATION ON WASTE DISPOSAL FOR CONSUMERS OF ELECTRICAL &
ELECTRONIC EQUIPMENT.
When this product has reached the end of its life it must be treated as Waste
Electrical & Electronic Equipment (WEEE). Any WEEE marked products must not be
mixed with general household waste, but kept separate for the treatment, recovery
and recycling of the materials used. Contact your local authority for details of recycling
schemes in your area.
Function
CH1
POSITION
CH2/CH3/CH4
MATH, REF
Dual time base
Window expansion
Horizontal time base
Horizontal displacement
Holdoff time
Trigger type
Signal source
Coupling mode
Trigger mode
Slope
Sampling mode
Equivalent mode
Save type
Measurement
Cursor
Frequency counter
Display format
Display type
32
Factory Setup
5V/DIV
Vertical centre point
Off
Off
Off
Off
1.0ms/div
Horizontal centre point
Minimum 96,000ns
Edge
CH1
AC
Auto
Rise
Normal sampling
Off
Setup
Off - Clear all measurements
Off
On
YT
Vector
Made in China. PR2 9PP
Man Rev 1.0

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