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17 

 

Test current: 

1

Press                  button power on the meter 

2) Connect Red /black test leads to COM and 10A input jack 

3)  Disconnect  the  circuit  to  be  tested.  Connect  the  black  test  pen  to  one  end  of  the 

disconnected circuit (the lower voltage) and connect the red test lead to the other end of 

the circuit that is broken (its voltage is high). 

4) Read by the LCD monitor the measured current value. When measuring DC current , The 

display will also show the polarity of the current connected by the red pen 

4.9 Frequency /

On/Off Test

 

Warning 

Risk of electric shock. 
To avoid damage to the meter or the device under test, all power to the circuit 
under test should be cut off and all high voltage capacitors should be fully 
discharged before the beep on-off test.

 

 
1) Insert the black test lead into the COM jack

and the red test lead into the                  Jack and 

Press              button enter On 

off mode. 

 
2) Connect the other end of the red and black test leads to the resistance of the circuit under 
test. 
3) The LCD display the Frequency value 
4) Press the        button again then to on-off test mode   

 

4.10 Diode Test 

Warning 

Risk of electric shock. 
To avoid damage to the meter or the device under test, all power to the circuit 
under test should be cut off and all high voltage capacitors fully discharged 
before measuring the resistance.

 

Test a diode outside the circuit 
1) Insert the black test lead into the COM jack, and the red test lead into the                    Jack   
and Press              button enter Diode mode            . 
2) Connect the other end of the red test lead to the diode anode and the other end of the black 
test lead to the diode cathode for testing. 
3) The meter shows the approximate forward voltage drop of the diode under test. If the polarity 
of the test leads is reversed, the meter will display "OL." 

Summary of Contents for MM-UA9999

Page 1: ...MM UA9999 Smart Digital Multimeter Manual ...

Page 2: ...nstructions 14 4 1 4 2 Data Hold Function selection 14 14 4 3 Torch 14 4 4 Automatic Power Off 15 4 5 Buzzer 15 4 6 Measurement Preparation 16 4 7 AC DC Voltage Resistance Buzzer On Off Test 16 4 8 AC DC Current Measurement 17 4 9 Frequency duty cycle test 17 4 10 4 11 4 12 4 13 4 14 5 5 1 5 2 6 Diode Test Circuit On Off Test Capacitance test Temperature NCV Maintenance Battery Replacement Probes ...

Page 3: ...ccordance with the usual safety procedures and full compliance with the safety regulations specified in the manual In order to make full use of the functions of the instrument and to ensure safe operation please carefully read and follow the instructions of this manual Instrument in line with GB T 13978 92 digital multimeter general technical conditions in line with GB4793 1 1995 IEC 61010 1 IEC 6...

Page 4: ...ge when the voltage between the measuring end and the earth exceeds AC 500V 1 2 6 Before turning the change switch to change the measuring function remove the test leads from the circuit under test 1 2 7 Do not live measurement resistance capacitance diode and test circuit off 1 2 8 In the current resistance capacitance diode and line continuity test range care should be taken to avoid connecting ...

Page 5: ...meter displays the symbol Replace the battery immediately 1 4 4 Use a damp cloth and mild detergent to clean the meter do not use abrasives or solvents 1 4 5 When the instrument is not in use turn off the power and turn the range switch to the OFF position 1 4 6 If the instrument is not used for a long time remove the battery to prevent damage to the instrument 2 Description Instrument for the por...

Page 6: ...orch 2 LCD display 3 NCV and Torch indicator 4 Frequency Duty cycle Voltage and Temperature 5 10A current input Jack 6 Resistance capacity voltage frequency Temperature on off test Diode test button 7 Common jack 8 Auto function and Power on off 9 Function select button 10 Reading Data hold button 11 NCV tester and Buzzer indication 12 NCV function zone ...

Page 7: ...t 15 minutes when no signal input Button Frequency and duty cycle switch Button NCV when short time press Torch functions when long time press Button Power on off when long time press Auto test function when short time press Input Jack Resistance capacity voltage frequency Temperature on off test Diode test COM Common jack 10A Current input jack ...

Page 8: ...oltage test hFE Transistor test status Temperature measurement status Battery week H Data hold Auto power off duty ratio mV V Millivolt volt voltage A Ampere current nF μF mF NaFala micro Farah millifara Ω kΩ MΩ Ohm kilo ohm megaohm resistance Hz kHz MHZ Hertz kilohertz megahertz frequency ...

Page 9: ...es negative polarity Overrange display 0L or 0L Sampling time about 3 times sec Unit display with function power unit display Automatic shutdown time no letter when about 15 minutes Power supply DC power supply 4 5V Battery Type AAA1 5Vx3 Battery Battery under voltage indication LCD display symbol Temperature coefficient less than 0 1 accuracy Operating temperature 18 28 Storage temperature 10 50 ...

Page 10: ...t the input signal reach a certain level for measurement Therefore the AC voltage and current range is specified between 2 and 100 of full scale 3 2 2 DC voltage Range Resolution Accuracy 6V 0 001V 0 5 of reading 5 words 60V 0 01V 600V 0 1V 0 8 of reading 5 words Input impedance 10MW Maximum input voltage 600V DC or 600V AC rms Note In the small voltage range the test leads not connected measured ...

Page 11: ...rrent Range Resolution Accuracy 6A 0 01A 2 5 of reading 10words 10A 0 01A Overload protection 10A mode Fuse 10A 250V Minimum input current 30mA DC or AC rms Maximum input current 10A DC or AC rms When the measured current is greater than 5A the continuous measurement time is not longer than 15 seconds after the measurement to stop the current measurement for more than 1 minute Frequency response 4...

Page 12: ...0Hz 1000Hz True RMS 3 2 6 Resistance Range Resolution Accuracy 600Ω 0 1Ω 0 8 readings 3 digits 6kΩ 0 001kΩ 60kΩ 0 01kΩ 600kΩ 0 1kΩ 6MΩ 0 001MΩ 1 2 readings 3 digits 20MΩ 0 01MΩ 2 0 readings 5 digits Overload protection AC DC 250V 3 2 7 Line off test Range Resolution Function 0 1W If the measured resistance is less than 50W the buzzer inside the instrument may sound or may not sound Less than 10W w...

Page 13: ...3 2 9 Capacitance Range Resolution Accuracy 9 999nF 0 001nF 4 0 readings 3digits 99 99nF 0 01nF 999 9nF 0 1nF 9 999MF 0 001mF 99 99MF 0 01mF 999 9MF 0 1mF 9 999mF 0 001mF 5 0 readings 3 digits 99 99mF 0 01mF 未标定 Overload protection 250V DC or AC rms 3 2 10 Frequency Range Resolution Accuracy 99 99Hz 0 01Hz 0 1 readings 2 digits 999 9Hz 0 1Hz 9 999kHz 0 001kHz 99 99KHZ 0 01kHZ 999 9KHZ 0 1KHZ 10 00...

Page 14: ...tage 250V DC and AC RMS 3 2 12 Temperature test Range Resolution Resolution 20 300 2 5 5d 1 301 1000 2 5 5d 1 4 600 2 5 5d 1 601 1832 2 5 5d 1 Overload protection 250V DC or AC rms 4 Operation guide 4 1 Readings remain In the course of the measurement if you want to keep the reading press the key the display value of the monitor will be locked and then press the key to release the reading 4 2 Func...

Page 15: ...to sleep automatically to save power 1 minute before the shutdown the buzzer has 5 prompts shut down before a long sound into the dormant state Note automatic shutdown is still 3 5uA of the working current a long time do not use the best to go to OFF or unplug the battery 2 Automatically shut down press the key position the instrument to resume working status Or turn the knob switch to OFF and the...

Page 16: ...1 Press button power on the meter 2 Connect the red and black test leads separately to COM and input jack 3 Measure the other two ends of the test pen and connect it to the voltage source or both ends of the load 4 Read by the LCD monitor the measured voltage resistance buzzer value When measuring DC voltage the display will be simultaneous 4 8 AC and DC current measurement Warning Risk of electri...

Page 17: ...st lead into the COM jack and the red test lead into the Jack and Press button enter On off mode 2 Connect the other end of the red and black test leads to the resistance of the circuit under test 3 The LCD display the Frequency value 4 Press the button again then to on off test mode 4 10 Diode Test Warning Risk of electric shock To avoid damage to the meter or the device under test all power to t...

Page 18: ...dicator lights when the measured resistance is less than 10 the buzzer will beep and all lights will be lit Note If the test leads are open or the measured line resistance is greater than 600 the display shows 0L 4 12 Capacitance measurement Risk of electric shock To avoid damage to the instrument or equipment under test all power supplies of the circuit under test and all high voltage capacitors ...

Page 19: ...tton the instrument displays NCV or EF symbol and the top of the instrument is close to the object to be tested such as mains power switch socket and so on When the detected voltage is greater than 110V AC RMS the instrument NCV indicator will be lit and the buzzer will sound an alarm note 1 The voltage may still be present even if there is no indication Do not rely on non contact voltage detector...

Page 20: ...of the battery cover and remove it 4 Remove the battery cover 5 Replace the new 6F22 9V battery 6 Install the battery cover as it is tighten the screws Note The polarity of the battery can not be installed 5 2 Replace the probe Warning When changing the test leads you must replace the same or the same grade of the test leads Table pen must be intact table pen level 1000V 10A If the pen insulation ...

Page 21: ... warranty service In the event of failure during the warranty period the company professionals to confirm the reasons for the failure of non users the company free warranty service 3 If the warranty period is exceeded the cost will be charged repair fee component fee 4 Even during the warranty period maintenance fees are charged in the following cases due to improper use of the user or accidental ...

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