I. DISPLAY FUNCTIONS &
SYMBOLS
Diode Test
Battery Test
AC - Alternating Current
mA - Millamp
DC - Direct Current
A - Amp
Ohm - Resistance
OFF
Power Off
Rotary Switch
LCD Display
COM Terminal
Backlight
Transistor Connector
Figure 1
Input Terminal
ON / OFF Button
Rotary Switch
OPERATING INSTRUCTIONS
Digital
Multi-Meter
DM4050
Read this owner’s manual thoroughly before use and save.
II. SAFETY WARNINGS
• This instruction manual contains warnings and safety rules which must be observed by
the user to ensure safe operation of the instrument and retain it in safe condition.
• Read through and understand the instructions contained in this manual before using the instrument.
• Keep the manual at hand to enable quick reference whenever necessary.
• The instrument is to be used only in its intended applications.
• Understand and follow all the safety instructions contained in the manual.
• It is essential that all safety instructions are adhered to.
• Failure to follow the safety instructions may cause injury, instrument damage
The symbol indicated on the instrument means that the user must refer to the related parts in the
manual for safe operation of the instrument. It is essential to read the instructions wherever the symbol
appears in the manual.
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