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Notice

•  If you do not know the measured voltage range in advance, set the 

function/range switch to the maxium range and then gradually turn to 

smaller ranges until you reach a satisfactory resolution.

•  If the display shows “ 1 ”, this indicates an overrange measurement, 

therefore the switch should be set to a higher range.

•  Do not input a voltage of more than 600V. It is capable of indicating a 

higher voltage, but with the risk of damaging the inside circuit.

•  When taking the measurement of high voltage, pay special attention to 

avoid an electric shock.

Direct Voltage Measurement

•  Insert the red probe into the “

VΩmA

” jack and the black one into the COM 

jack.

•  Turn the function/range switch to the range of 

V

      and connect the probe 

to the power supply or load to be measured. The polarity touched by the 

red probe will be on the display.

•  Plug the instrument in and check the 9V battery. If it is low the “     ” 

symbol will display, meaning the battery needs replacing.

•  The      besides the probe jack indicates that the input voltage or current 

should not exceed the specified limits, in orderto protect the internal 

circuit.

•  Before measurement, turn the function/range switch to the desired range.

+   -

!

OPERATION

• 

Overload protection: 250V DC or RMS. AC.

Temperature Measurement

Range Resolution

Measurement

Accuracy

°C

1°C

-20°C to 0°C

-0°C to 400°C

400°C to 1000°C

±10% Range, ±2 digits

±1.0% Range, ±3 digits 

±2.0% Range

Diode and Circuit On-Off Measurement

Range

Description
When the on-resistance is smaller than (70±30)

Ω, the 

built-in buzzer will sound.

Displays the approximate diode postive voltage.

Summary of Contents for D03125

Page 1: ...1 3 DIGITAL MULTIMETER MODEL D03125 ...

Page 2: ...suring do not touch the input terminal not in use When a measurement range is uncertain turn the function range switch to the maximum range position Before turning the function range switch make sure the probe is open with the circuit being measured Before on line resistance measurement of voltage higher than 60V DC 30V AC remember to keep your fingers behind the hand shield of the probe When meas...

Page 3: ...gital multimeter features stable high reliable and anti drop performance It is provided with an LCD display 15mm in height designed for clear reading The circuit design takes LSI double integral A D converter as its core under the protection of an overload protection circuit making it a superior and handy instrument It can be used to measure DC and AC voltage DC current resistance diodes transisto...

Page 4: ...lay Appearance dimension 138mm x 69mm x 31mm Weight 170g Direct Current Voltage Measurement Range Resolution Accuracy 200mV 100μV 0 5 of reading 3 digits 2V 1mV 0 5 of reading 3 digits Display 3 digital 15mm height 7 sections LCD display Backlight Press the BACKLIGHT button to turn on the backlights which will last for five seconds To turn it on again press the button when required Function and Ra...

Page 5: ...n Alternating Voltage Measurement Range Resolution Accuracy 200V 100mV 1 2 of reading 10 digits 600V 1V 1 2 of reading 10 digits Overload protection 600V DC or RMS Frequency range 40Hz to 400Hz Display Average effective value of sinusoid Resistor Range Resolution Accuracy 200Ω 0 1Ω 0 8 of reading 5 digits 2kΩ 1Ω 0 8 of reading 2 digits 20kΩ 10Ω 0 8 of reading 2 digits 200kΩ 100Ω 0 8 of reading 2 d...

Page 6: ...itch to the range of V and connect the probe to the power supply or load to be measured The polarity touched by the red probe will be on the display Plug the instrument in and check the 9V battery If it is low the symbol will display meaning the battery needs replacing The besides the probe jack indicates that the input voltage or current should not exceed the specified limits in orderto protect t...

Page 7: ...rent will blow the fuse Alternating Voltage Measurement Place the red probe into the VΩmA jack and the black one into the COM jack Turn the switch to V and connect the probe to the power supply or load to be measured Resistance Measurement Place the black probe into the COM jack and the red one into the V Ω Hz jack Turn the switch to the COM jack and connect the probe to the resistor being measure...

Page 8: ...ints is less than 100Ω the built in buzzer will sound to indicate the continuity between the two points Temperature Measurement Turn the switch to the C position and insert the black probe of the thermocouple sensor into the COM jack and the red into the V Ω mA jack Place the operating terminals temperature measurement terminals onto or inside the object being measured and directly read the temper...

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