Victor VC70D Manual
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Victor VC70D Manual

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Ⅰ. Overview
As a kind of intelligent 3 5/6 digital multimeter with automatic identification, steady performance and high
reliability, this meter is equipped with LCD display device with the text height of 33mm which features
clear reading, direct-viewing display and convenient operation. It can be used to measure DC voltage, AC
voltage, DC current, AC current, resistance, capacitance, frequency, diode and continuity test; meanwhile, it
is available for unit symbol display, data retention, the measurement of maximum and minimum value,
automatic/manual range switching, automatic power off and alarm function. The complete machine takes a
switching integrated circuit which can directly drive LCD microprocessor and double-integrating A/D and a
digital display drive offering high resolution and high precision. Since the meter features complete
functions, high measurement accuracy and convenient operation, it is the ideal tool in laboratory and
factory as well as for radio fans and family.
Ⅱ. Open-package Inspection
Open the package box and take out the meter, check carefully if the following accessories are absent or
damaged. If there is any absence or damage, please contact the distributor immediately.
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Digital multimeter

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  • Page 1 Digital multimeter Ⅰ. Overview As a kind of intelligent 3 5/6 digital multimeter with automatic identification, steady performance and high reliability, this meter is equipped with LCD display device with the text height of 33mm which features clear reading, direct-viewing display and convenient operation. It can be used to measure DC voltage, AC voltage, DC current, AC current, resistance, capacitance, frequency, diode and continuity test;...
  • Page 2 Digital multimeter Digital multimeter 1 set Instruction Manual 1 copy Testleads 1 pair 6F22 Battery 9V 1 pc Alligator clip 1 set Ⅲ. Safety Considerations In accordance with IEC1010 clause (the safety standard issued by International Electrotechnical Commission), This product is designed and produced according to the safety requirements of pollution level Ⅱ. Warning: In order to avoid endangering the operator’s safety, prior to the operation of the instrument, please read the 2 / 25...
  • Page 3 Digital multimeter instruction manual carefully, and conform to the safety warning information and operation instruction strictly to use the instrument. 1. When voltage above 30V, current above 10mA, AC power line with inductive load or AC power line during electric fluctuation measuring, please beware of electric shock. 2.
  • Page 4 Digital multimeter insulated against the ground. 7. Don’t store and use it in the high-temperature, high-humidity, inflammable and strong magnetic field environment. 8. It may damage the meter and endanger the operator’s safety if the voltage value beyond the permitted ultimate voltage value is measured.

  • Page 5: Ⅳ. Description Of Safety Symbols

    Digital multimeter 14. Please don’t change the circuits of the meter freely for fear that the meter will be damaged and the safety be endangered. Ⅳ. Description of Safety Symbols Warning! AC/DC accordance with High Voltage! Danger! instructions European Trade Union Ground Fuse Double Insulation...
  • Page 6 Digital multimeter 2. LCD display area. 3. Function button: Used to select various measurement functions. 3-1 Backlight selection switch, trigger it once to turn on the backlight, and trigger it once more to turn off the backlight. 3-2 It is automatic identification when start-up. Press SELECT to enter automatic measurement, MAX/MIN: the maximum value and minimum value.
  • Page 7 Digital multimeter range when the button is pressed again. The procedure repeats again and again like this in the same order. Press down the button for more than 2seconds, then exit from manual range and enter the state of automatic range measurement. 3-4 SELECT: Button switch, it is used to select various measurement functions.

  • Page 8: Ⅵ. Other Functions

    Digital multimeter Ⅵ. Other Functions 1. Automatic power off After the meter is stopped for 10 min, it will cut off power automatically (power off), and then enter the dormant (power off) state. Within one minute before power off, the built-in buzzer will send out warning tone for 3 times.

  • Page 9: Dc Voltage (Dcv)

    Digital multimeter 1－4. Sampling rate: About 3 time/s. 1－5. Over rang: Display “OL” 1－6. Low voltage display: the symbol displayed. 1－7. When it is over 30V AC/DC voltage, the symbol “ ” is displayed 1－8. Working temperature: 0～40℃, relative humidity <80% 1－9.
  • Page 10 Digital multimeter respectively plug in the red and black testleads into the holes of “VΩHz”and“COM”, as shown in the following diagram. 2．The initial state of the meter is the AC/DC voltage automatic identification mode and a symbol of “SCAN” is displayed; at this time, such buttons as “RANGE”.“MAX/MIN”.“HOLD” have no controlling functions, and only when “SELECT”...

  • Page 11: Ac Voltage (Acv)

    Digital multimeter Range Accuracy Resolution 600mV 0.1mV ±(0.5%+4d) 10mV 600V 100mV 1000V ±(1.0%+6d) Input impedance: 600mV range > 60MΩ，the others are 10MΩ. Overload protection：DC 1000V or AC 750V peak value IX. AC Voltage (ACV) 1． Trigger “AC/DC/EF”, at this time it is at the AC/DC voltage automatic identification mode, and respectively plug in the red and black testleads into the holes of “VΩHz”and“COM”, as shown in the following diagram.
  • Page 12 Digital multimeter and only when select the non-automatic identification mode of the automatic range can let such bottons as “RANGE”.“MAX/MIN”.“HOLD” play their function controlling. 3． Touch the measuring point with the testleads and connect it in parallel to the circuit being tested, and the polarity of the red testlead wire and the tested voltage value are spontaneously displayed on the display.

  • Page 13: Dc Current (Dca)

    Digital multimeter Range Accuracy Resolution ±(1.6%+10d) 600mV 0.1mV ±(0.8%+10d) 10mV 600V 100mV ±(1.0%+10d) 750V Input impedance: 10MΩ. Overload protection：DC 1000V or AC 750V peak value Display： Mean value response（calibrated with sine wave）. Frequency response： 600mV: (40-100)Hz. 6V-750V: (40－400)Hz X. DC Current (DCA) 1．Put the black testlead into the “COM”...
  • Page 14 Digital multimeter measurement can let such buttons as “RANGE”, “MAX/MIN”, “HOLD” re-get function controlling. 2． In case “OL” is displayed on the LCD, it indicates the current being measured has exceed the current range, and please select higher range for measurements. Caution: ×...

  • Page 15: Ac Current (Aca)

    Digital multimeter XI. AC Current (ACA) 1．Put the black testlead into the “COM” terminal and the red testlead into the “mA” or “10A” terminal. Trigger the “ “ button or “ “ button, select automatic identification AC/DC measurement,, and if the current is lower ×...
  • Page 16 Digital multimeter “RANGE”.“MAX/MIN”.“HOLD” do not play the controlling functions. c) When the testleads plugged in the input terminal of the current, it is strictly prohibited to have the testlead connected in parallel on any circuits. Range Accuracy Resolution 10μA 60mA ±(1.5%+10d) 100μA 600mA...
  • Page 17 Digital multimeter mode can continue to test, and at this time “RANGE”.“MAX/MIN” “HOLD” re-get the controlling Caution: a） When measuring resistance, all the powers within the tested circuits must be disconnected and the capacitance should be sufficiently discharged. b） When measuring the resistance, any occurrence of voltage may lead to inaccurate readings, and if the 250V protection voltage is exceeded, it may damage the meter or threaten the safety of the user.

  • Page 18: Diode And Continuity Test

    Digital multimeter XIII．Diode and Continuity Test 1. Press “ ” button and respectively put the red and black testlead into “VΩHz”and“COM” terminal. 2. After the instrument is started, triggering “ “ button is the automatic identification measurement of resistance, diode, buzzer and capacitance. Under the mode of automatic identification such buttons of “RANGE”.“MAX/MIN”.“HOLD”do not play the controlling functions, ×...
  • Page 19 Digital multimeter b）When checking the diode, all the powers within the tested circuits must be disconnected and the capacitance should be sufficiently discharged. c) When the measurement is completed, immediately disconnect the testlead and the measured circuit. Range Display value Measurement condition Forward DC current is about Diode forward voltage drop...
  • Page 20 Digital multimeter of resistance, diode, buzzer and capacitance. Under the mode of automatic identification, such bottons as “RANGE”.“MAX/MIN”.“HOLD” do not play the controlling functions. In case the capacitance being measured is smaller than 0.5nF and bigger than 600uF, please trigger the “SELECT” button to choose the non-automatic identification automatic capacitance measurement mode, and at this time, such buttons as “MAX/MIN”“HOLD”“RANGE”...

  • Page 21: Frequency (Hz)

    Digital multimeter Overload protection: 250V DC or AC peak values XV. Frequency (Hz) 1. Trigger “AC/DC/EF”, and at this time it is at the AC/DC voltage automatic identification mode, and trigger “Hz” button to choose frequency measurement. 2. Respectively put the testlead into “VΩHz”and“COM”. 3.
  • Page 22 Digital multimeter Input sensitivity: 3V RMS value Overload protection: DC/AC 250V peak value. XVI. Electric Field Measurement 1．After triggering the “AC/DC/EF” button, trigger “SELECT” button in cycle, until “EF” shows on the LCD, at this time, the meter enters the electric field measurement mode. 2．Put the area of the meter which the arrow indicated as below towards the measured object.

  • Page 23: Instrument Maintenance

    Digital multimeter XVII. Instrument Maintenance This instrument is a sophisticated instrument and the user shall not change the electric circuit at will. 1．Please pay attention to waterproof, dustproof and fall proof. 2．Do not store or use the meter in high temperature, high humidity and inflammable and explosive and strong electromagnetic field.
  • Page 24 Digital multimeter 3）Mount the battery door and tighten the screw. 4）Replacement of fuse: The steps are as the same as above. When replacing the fuse, please use the fuse of the same size and type. Caution: 1.Do not connect DC or AC peak voltages higher than 1000V: 2.Don not measure voltage value under current mode, resistance mode, diode mode and buzzer mode.
  • Page 25 Digital multimeter 601E-070D-000A 25 / 25...

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