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• If having no idea about the scope of current measured, users shall rotate the range switch to the highest

level, and then rotate it to corresponding level according to the value displayed;

• If LCD shows “OL”, it indicates going beyond the range, and the range switch shall be rotated to a higher

level.

• The maximum input current is 200mA or 20A (depending on the inserting location of red probe). In case

of exceeding rated current, the fuse will be melted or even the instrument will be damaged.

3.5. AC current measurement

• Insert the black multimeter probe into “COM” hole, and the red multimeter probe into “mA” or “20A”

hole (maximum 200mA or 20A);

• Select the knob to a proper ACA range, and connect the test leads crossly to the electric circuit under

test.

Notes
• If having no idea about the scope of current measured, users shall rotate the range switch to the highest

level, and then rotate it to corresponding level according to the value displayed;

• If LCD shows “OL”, it indicates going beyond the range, and the range switch shall be rotated to a higher

level.

• The maximum input current is 200mA or 20A (depending on the inserting location of red probe). In case

of exceeding rated current, the fuse will be melted or even the instrument will be damaged.

3.6. Resistance measurement

• Insert the black multimeter probe into “COM” end, and the red multimeter probe into “VΩHz” end;
• Select the knob to a proper resistance range, and connect the test leads crossly with the resistor under

test.

Notes
• Under the mode of manual range measurement, if having no idea about the scope of resistance measured,

users shall adjust the switch to the highest level;

• If LCD shows “OL”, it indicates going beyond the range, and users shall adjust the range to a higher

level. If the resistance measured is more than 1M, it will take several seconds for the reading to become
stable, and this is normal for measurement of high resistance;

• If the input end is open-circuited, the overload sign “OL” will be displayed;
• The online resistance measurement may be started after it’s confirmed that, all power sources of tested

circuit are cut off, and all capacitors are completely discharged;

• Never input voltage at resistance level.

Summary of Contents for AX-582B

Page 1: ...o avoid fault operation Please do not measuring before battery isn t installed and back cap isn t firm Do not input any voltage when measure resistance Always remove the test leads before replacing th...

Page 2: ...3 100mV 1000V 1 0 10 1V Input impedance 10M Over load protection 250V DC or AC peak value for range 200mV 1000V DC or AC peak value for other ranges 2 2 3 AC Voltage Measurement Range Accuracy Resolu...

Page 3: ...se Frequency response 40 200 Hz Display Sine wave RMS Average value response 2 2 6 Resistance Range Accuracy Resolution 200 0 8 5 0 1 2k 0 8 3 1 20k 0 8 3 10 200k 0 8 3 100 2M 0 8 3 1k 200M 5 0 20 100...

Page 4: ...is approx 1mA the backward voltage is approx 3V Value displayed Buzzer sounds the resistance is less than 50 20 Testing condition Open voltage is approx 3V Overload protection DC or AC250V peak value...

Page 5: ...3 Application Method 3 1 Description of operating panel 1 LCD unit It displays the numerical value measured with the instrument and its unit 2 1 Power ON OFF 2 2 HOLD B L 2 3 MIN MAX key...

Page 6: ...ut to DC Voltage above 1000V or AC above 750V RMS Never contact the high voltage circuit measured 3 3 AC Voltage Measurement Insert the black multimeter probe into COM end and the red multimeter probe...

Page 7: ...ange and the range switch shall be rotated to a higher level The maximum input current is 200mA or 20A depending on the inserting location of red probe In case of exceeding rated current the fuse will...

Page 8: ...5kHz Notes The initial square wave output is 50Hz if want to output different frequency press HOLD to choose CAUTION do not input voltage at this range 3 9 Diode and on off test Insert the black multi...

Page 9: ...is instrument is precise and users shall never change its circuit at random Protect the instrument from water dust and hurl down Never store or use the instrument in high temperature high humidity fla...

Page 10: ...not connected Holding switch Replace the batteries Appearance of the sign Replace the batteries No input of current Replace the fuse Big error in display Replace the batteries The specifications are s...

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