Duratool D03124 Manuel de démarrage rapide - Page 5
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MEASURE RESISTANCE
•
The resistance range are: 200.0
Ω
20.00M
.
•
To measure resistance, connect the meter as follows:
•
Insert the red test lead into the " V
terminal.
•
Set the rotary switch to proper resistance range.
•
Connect the test lead across with the object under testing.
•
The measured value will be show on the LCD display.
NOTE: The test lead can add 0.10 to 0.20 of error to resistance measurement. To
obtain precision reading in low-resistance measurement, that is the range of 200.0
short the input terminals before measuring. The contact resistance is displayed on the
LCD. You can subtract the contact resistance value from the measured value.
•
For high-resistance measurement (>10M
obtain stable reading.
•
If the LCD displays "OL" indicates an open-circuit for the tested resistor or the
resistance value is higher than the maximum range of the meter.
DIODE AND CONTINUITY CHECK
Diode
•
Set the rotary switch to "
•
Default mode is diode check mode. You can enter the continuity check mode by
pressing the "FUNC" Key.
•
Insert the red test lead into the "V
"COM" terminal.
•
Use the diode test mode to check diodes, transistors and other semiconductor
device. In the diode test mode sends a current through the semiconductor junction,
and the measure the voltage drop across the junction. A good silicon junction drop
between 0.5V and 0.8V.
•
For forward voltage drop reading on any semiconductor component, place the red
test lead on the component anode and place the black test lead on the component
cathode.
•
The measured value show on the display.
•
Reverse the test leads and measure the voltage across the diode again/ If the
diode is good the display shows "OL".
Continuity
•
Press "FUNC" to enter continuity mode.
•
The buzzer sounds if the resistance is less than 100
FREQUENCY MEASUREMENT
•
Set the rotary switch to "Hz" position.
•
Insert the red test lead into the "VΩHz" input terminal and the black test lead into
the "COM" terminal.
•
Connect the test leads across with the circuit under testing.
•
The measured value shown on the LCD display.
NOTE: Input signal level must be higher than 0.5V.
Ω
Ω
, 2.000K
, 20.00K
Ω
" terminal and the black test lead into the COM
Ω
), it is normal taking several second to
" position.
Ω
'' terminal and the black test lead into the
5
Ω
Ω
, 200.0K
, 2.000M
Ω.
Ω
,
Ω
,