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replacement.

6. TROUBLE SHOOTING

If the meter does not work properly, check it as

following:

ERROR

SOLUTION

NO DISPLAYING

●Turn on the power
●HOLD key
●Replace battery

symbol displays

●Replace battery

NO CURRENT

INPUT

●Replace fuse

BIG ERROR

●Replace battery

601E-9807-002G

Содержание VR-9807A

Страница 1: ...ulti meter driven by battery Its LCD with 42mm high figure makes the reading clear Overload protection makes the operation is convenient The instrument has the function of measuring DCV ACV DCA ACA re...

Страница 2: ...S when measuring voltage 2 2 Voltage less than 36V is a safety voltage When measuring voltage higher than DC 36V AC 25V please check the connection and insulation of test leads to avoid electric shock...

Страница 3: ...3 1 GENERAL 3 1 1 Displaying LCD displaying 3 1 2 Max indication 19999 4 1 2 auto polarity indication 3 1 3 Measuring method dual slope A D transfer 3 1 4 Sampling rate approx 3 times sec 3 1 5 Over...

Страница 4: ...ox 422g including battery 3 1 11 Accessories Operation manual Test leads Shock proof cover Gift box battery etc 3 2 TECHNICAL DATA 3 2 1 Accuracy a reading digits at 23 5 relative humidity 75 One year...

Страница 5: ...display 3 2 3 TECHNICAL DATA 3 2 3 1 DCV Range Accuracy Resolution 200mV 0 1 5 0 01mV 2V 0 0001V 20V 0 001V 200V 0 01V 1000V 0 2 5 0 1V Input impedance 200mV range 1M other ranges 10M Overload protec...

Страница 6: ...V 20V 10mV 200V 100mV 750V 1 2 25 1V Input impedance 200mV range 1M other ranges 10M The frequency response of sine wave and triangular wave is 40Hz 1kHz the frequency response of other waveform is 40...

Страница 7: ...do not affect the measuring accuracy 3 2 3 3 DCA Range Accuracy Resolution 200uA 0 5 4 0 01uA 2mA 0 0001mA 20mA 0 001mA 200mA 0 8 6 0 01mA 20A 2 0 15 0 001A Max measuring volt drop 200mV Max input cu...

Страница 8: ...ec Time interval should be more than 5 min 3 2 3 4 ACA Range Accuracy Resolution 200mA 1 5 15 0 1mA 20A 2 5 35 10mA Max measuring volt drop 200mV Max input current 20A within 10 seconds Over range pro...

Страница 9: ...min 3 2 3 5 RESISTANCE Range Accuracy Resolution 200 0 4 10 0 01 2k 0 4 5 0 1 20k 1 200k 10 2M 100 20M 1 2 25 1k 200M 5 45 10k Open voltage less than 3V Overload protection DC 250V or AC peak value No...

Страница 10: ...pF 20uF 1nF 200uF 10nF 2000uF 100nF Overload protection DC 36V or AC peak value 3 2 3 7 FREQUENCY Range Accuracy Resolution 20Hz 0 1 3 0 001Hz 200Hz 0 01Hz 2kHz 0 1Hz 20kHz 1Hz 200kHz 10Hz 2MHz 100Hz...

Страница 11: ...mpedance between the two testing points is less than 50 20 Open voltage is approx 3V Overload protection DC 250V or AC peak value Warning Do not input any voltage value at this range for safety 3 2 2...

Страница 12: ...D display the measured value 4 1 2 Power press the hold key to turn it on auto power off can be cancelled 4 1 3 Hold and turn on off the backlight 4 1 4 Tride input terminal 4 1 5 backlight indicator...

Страница 13: ...athode COM 4 1 10 Voltage resistance temperature and diode anode COM 4 2 DCV measurement 4 2 1 Apply the black test lead to COM terminal and the red one to V Hz terminal 4 2 2 Switch the knob to a pro...

Страница 14: ...g to the displaying value If LCD displays OL it means over range the range knob must be switched to a higher range 2 Do not input a voltage over 1000V or the meter might be damaged 3 Be careful when m...

Страница 15: ...er measured is unclear beforehand should set the range knob to the highest range then switch it to a proper range according to displaying value If LCD displays OL it means over range should set the ra...

Страница 16: ...red one to mA terminal Max 200mA or the red test lead to 20A terminal max 20A 4 4 2 Set the range knob to a proper DCA current range then connect the meter with the measured circuit the measured curre...

Страница 17: ...lead be inserted large current may blow the fuse Be careful especially at 20A range the testing time should be less than 10s Cause there is no fuse protection large current may heat the circuit even...

Страница 18: ...nd the red one to mA terminal max 200mA or the red test lead to 20A terminal max 20A 4 5 2 Set the range knob to a proper AC current range then connect the meter with the circuit under measured NOTE 1...

Страница 19: ...be careful especially at 20A range because there is no fuse protection large current may heat the circuit even damage the meter 3 The remained digits do not affect the measuring accuracy 4 Do not par...

Страница 20: ...lead to COM terminal and the red one to V Hz terminal 4 6 2 Set the range knob to a proper resistance range connect up the test leads across the resistance under measured NOTE 1 If the resistance val...

Страница 21: ...is off and all capacitance are released 4 Do not input voltage at this range 4 7 Capacitance measurement 1 Apply the black test lead to COM terminal and the red one to mA terminal 2 Set the knob to p...

Страница 22: ...CD displaying might not be zero the remaining will become smaller and smaller It could be ignored 3 If creeps seriously or the capacitor is breakdown when measuring large capacitance some digits are d...

Страница 23: ...V Hz terminal the polarity of the red test lead is 4 9 2 Set the range knob to connect the test leads with the diode under measured and the reading is close to the value of diode forward voltage drop...

Страница 24: ...less than 50 20 approximately NOTE Do not input voltage at range to avoid damage 4 10 FREQUENCY MEASUREMENT 4 10 1 Apply the test leads or shield cable to COM and V Hz terminal 4 10 2 Switch the knob...

Страница 25: ...ircuit 4 Do not input a voltage over DC 250V or AC peak factor to avoid damage to the meter 4 11 CONDUCTANCE MEASUREMENT 1 Apply the red test lead to mA terminal and the black one to COM terminal 2 Se...

Страница 26: ...it 1nS 10 9 S S 1 4 12 DATA HOLD TURN ON OFF THE BACKLIGHT Press down the HOLD B L key LCD display HOLD the present value is held on the screen press it again HOLD disappeared press it for 2 seconds t...

Страница 27: ...water dust and shock 5 2 Do not store and operate the meter under the condition of high temperature high humidity combustible explosive and strong magnetic place 5 3 Clean the case with a damp fabric...

Страница 28: ...TROUBLE SHOOTING If the meter does not work properly check it as following ERROR SOLUTION NO DISPLAYING Turn on the power HOLD key Replace battery symbol displays Replace battery NO CURRENT INPUT Rep...

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