Victor VC890D Digital Multimeter User Manual

: August 10, 2024
: VICTOR

Table of Contents

Victor VC890D Digital Multimeter User Manual
SAFETY SYMBOLS
- CHARACTERISTIC
TECHNICAL DATA
OPERATION
MAINTENANCE
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Victor VC890D Digital Multimeter User Manual

SUMMARIZE
The meter is a stable multimeter with a 25mm LCD, driven by a battery. It’s widely used for measuring DCV, ACV, DCA, ACA, resistance, capacitance, diode, transistor, and continuity tests. It’s an ideal tool for labs, factories, and families.

SAFETY NOTE
Themeter meetsthe standards ofIEC1010. Read the operation manual carefully before the operation.

Do not input limit over-ranged.
The voltage below 36V is safe. To avoid electric shock, check whether the test leads are connected correctly and whether the insulation is good when measuring over 36DCV or 25ACV.
Remove the test leads when changing function and range.
To select the correct function and range, beware of error operation.;
Do not operate the meter if the battery case and back cover are not fixed.
Do not input voltage when measuring resistance.
Remove test leads from the test point and turn off the power before replacing the battery and fuse.

SAFETY SYMBOLS

“ ”EXISTS DANGEROUS VOLTAGE，“ ” GND，“ ”DUALINSULATION
“ ”THE OPERATOR MUSTREFERTOTHE MANUAL，“ ”LOW BATTERY

CHARACTERISTIC

GENERAL

Displaying: LCD displaying.
Max. displaying: 1999（3 1/2digit）auto polarity indication.
Measuring method: dualslopeA/D conversion.
Sampling rate: approx. 3 times/second.
Overrange indication: the MSD displays“1” or“-1”. 3-1-6
Low battery indication:“ ” appears. 3-1-7
Operation environment:（0～40℃ R.H).<80%. 3-1-8．
Power :9V×1（NEDA1604/6F22 or equivalent model)
3-1-9 Size: 175×93×55mm
Weight: approx. 400gincluding battery)

ECHNICALCHARACTERISTIC

ccuracy:±(a%×rdg＋d) at (23±5)℃ R.H.<75% one year guaranteed from the production date.

TECHNICAL DATA

DCV

Input resistance:10MΩ for all ranges.
Overload protection: 250V DV or AC peak value at 200mV range.
1000V DC or AC peak value at other ranges.

ACV

Input resistance: 10MΩ
Overload protection: 1000V DC or AC peak value
Frequency response: ≤200Vrange: （40～400）Hz ，750Vrange:（40～200）HzDisplay: sine wave RMS (mean value response)

DCA

Max. input volt drop: 200mV Max.
input current: 20A（the test time should be in 10 seconds)
Overload protection: 0.2A/250V fast-blown fuse, 20Aun-fused

ACA

Max. measuring volt drop: 200mV Max. input current: 20A (the test time should be in 10 seconds)
Overload protection: 0.2A/250V fast-blown fuse, 20Aun-fused
Frequency response: (40～200)Hz
Display: sine wave RMS (mean value response)

RESISTANCE（Ω）

Open voltage: less than 0.7V
Overload protection: 250V DC and AC peak value
NOTE: at the 200Ω range, the test leads should be short-circuited, and measured down-lead resistance, then, subtract from the real measuring.
WARNING: DO NOT input any voltage at the resistance range for safety!

CAPACITANCE (C)
Overload protection: 36V DC or AC peak value

DIODE AND CONTINUITY TEST

Overload protection: 250V DC or AC peak value
Warning: DO NOT input any voltage at this range for safety!

Triode hFE test

OPERATION

Front panel description

Model
LCD
Shine diode 4 .range knob
20A current jack
“-” pole jack for capacitance, temp. and test accessory and less than 200m A current test jack.
“+”pole jack for capacitance, temp. test accessory and GND.
“+”pole jack for volt, resistance and diode.
Transistor test jack See the fig.

DCV MEASUREMENT

Insert the black test lead into the “COM” jack, and the red one into the V/D jack.
Set the range knob to a proper DCV range, and connect the test leads across to the circuit under test, the polarity and voltage of the point to which the red lead connects will display on LCD.

NOTE

If the measured voltage is unsure beforehand, should set the range knob to the highest range, then, switch to a proper range according to the displayed value.
If LCD is “1”, it means over range, should set the range knob to a higher range.

ACV MEASUREMENT

Insert the black test lead into the “COM” jack, and the red one into the V/jack.
Set the range knob to a proper ACV range, and connect the test leads across to the circuit under tested.

NOTE

If the measured voltage is unsure beforehand, should set the range knob to the highest range, then, switch to a proper range according to the displayed value.
If LCD is “1”, it means over range, should set the range knob to a higher range.

DCA MEASUREMENT

Insert the black test lead to the “COM” jack and the red one to the “mA” jack (max. 200mA), or insert the red one to the “20A” jack (max. 20A).
Set the range knob to a proper DCA range, and connect the test leads across to the circuit under test, the current value and polarity of the point to which the red lead connects will display on LCD.

NOTE

If the measured current is unsure beforehand, should set the range knob to a higher range, then, switch to a proper range according to the displayed value.
If LCD “I”, means over range, should set the range knob to a higher range.
Max. input current is 200mA or 20A (subject to where red lead is inserted), excessive current will blow the fuse. Be careful when measuring 20A due to un-fused.
Continuously measuring large currents may heat the circuit, affect the accuracy, and even damage the meter.

ACV MEASUREMENT

Insert the black test lead to the “COM” jack and the red one to the “mA” jack (max. 200mA), or insert the red one to the “20A” jack (max. 20A).
Set the range knob to a proper ACA range; connect the test leads across to the circuit under tested.

NOTE

If the measured current range is unsure beforehand, should set the range knob to the highest range, then set it to a proper range according to the displayed value.
If LCD is “1”, it means over range, should set the range knob to a higher range.
Max. input current is 200mA or 20A (subject to where the red lead is inserted), excessive current will blow the fuse. Be careful when measuring 20A due to un-fused.
Continuously measuring large currents may heat the circuit, affect the accuracy, and even damage the meter.

RESISTANCE MEASUREMENT

Insert the black test lead into the “COM” jack and the red one into the “V/2” jack.
Set the range knob to a proper resistance range, connect the test leads across to the resistance under measured.

NOTE

If the resistance value being measured exceeds the max value of the range selected, LCD “I”, thus, should set the range knob to a higher range.
When the resistance is over 1 ms, the meter may take a few seconds to stabilize. This is normal for high resistance readings.
When the input terminal is in an open circuit, overload displays.
When measuring in-line resistance, be sure that power is off and all capacitors are released completely.

CAPACITANCE MEASUREMENT

Insert the red test lead into the “COM” terminal and the black one into the “mACx” jack.
Set the range knob to a proper capacitance range, and connect the test leads to the capacitor under measured (note: the polarity of the red test lead is “*”).

NOTE

If the capacitance range under-measured is unsure beforehand, should set the range knob to the highest range, then, set it to a proper range according to the displayed value.
If LCD is “1”, it means over range, should set the range knob to a higher range.
Before measuring, the LCD might not be zero, the residual reading will be decreased gradually and could be disregarded.
When measuring large capacitance, if creeps seriously or breaks capacitance, LCD will display some instability value.
Discharge all capacitors completely before capacitance measurement to avoid damage.
UNIT: 1uF =1000nF 1nF=1000pF

DIODE AND CONTINUITY TEST

Insert the black test lead to the “COM” terminal and the red one to the V/S jack( Note: the polarity of the red test lead is “+”).
Set the range knob to ” ” range, and connect the test leads to the diode under measured, reading is the approximation of the diode positive volt drop.
Connect the test leads to two points of the measured circuit, if the buzzer sounds, the resistance is lower than approx. (70=20)9.

TRIODE hFE

Set the range knob to hFE.
Insert the positive pole to the “COM” terminal and the negative pole to the “mA” jack.
Verify the type of the transistor is NPN or PNP, and insert the emitter, basic, and collector into the proper jack on the test accessory.

AUTO POWER-OFF
After stopping operating for about(2010) minutes, the meter is auto power-off to be in sleepy mode. Press the POWER key twice to restart the power.

MAINTENANCE

DO NOT try to verify the circuit for it’s a precision meter.
Beware of waterproof, dustproof, and shockproof.
Do not operate and store the meter in the circumstance of high temperature, high humidity, flammability, explosive, and strong magnetic field.
Use a damp cloth and soft solvent to clean the meter, do not use abrasive or alcohol.
If do not operate it for a long time, should take out the battery.
When LCDs the symbol, should replace the battery as below:
Take out the holster and drop out the battery case.
Make out the battery and replace a new one. It’s better to use the alkalescent battery for a long time use.
Fix the battery case and take on the holster.

Fuse replacement
To use the specified type when replacement. If the meter does not work properly, check the meter as follows:

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