Victor VC890D User Manual

OPERATION MANUAL
1. SUMMARIZE
The meter is a stable multimeter with 25mm LCD display, driven by battery. It's widely used on
measuring DCV, ACV, DCA, ACA, resistance, capacitance, diode, transistor, and continuity test.
It’s an ideal tool for lab, factory and family.
2. SAFETY NOTE
Themeter meets the standards of IEC1010. Read the operation manualcarefully before operation.
2-1．Do not input limit over-ranged.
2-2．The voltage below 36V is safety. To avoid electric shock, check whether the test leads are
connected correctly, whether the insulation is good when measuring over 36DCV or 25ACV.
2-3．Remove the test leads when changing function and range.
2-4．To select correct function and range, beware of error operation.；
2-5．Do not operate the meter if batterycase and back cover is not fixed.
2-6．Do not input voltage when measuring resistance.
2-7．Remove test leads from test point and turnoff thepower before replacing battery and fuse.
2-8．SAFETYSYMBOLS
“ ”EXISTS DANGEROUSVOLTAGE，“ ” GND，“ ”DUALINSULATION
“ ”THE OPERATOR MUST REFER TO THE MANUAL ，“ ”LOW BATTERY
3. CHARACTERISTIC
3-1．GENERAL
3-1-1．Displaying:LCD displaying.
3-1-2．Max. displaying: 1999（3 1/2digit）auto polarity indication.
3-1-3．Measuring method:dual slopeA/D conversion.
3-1-4．Sampling rate: approx.3 times/second.
3-1-5．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（NEDA1604/6F22or equivalent model）.
3-1-9．Size: 175×93×55mm
3-1-10．Weight: approx.400g（including battery）.
3-2.ECHNICAL CHARACTERISTIC
3-2-1.ccuracy:±(a%×rdg＋d) at (23±5)℃，R.H.<75%，one year guaranteedfrom the production date.
3-2-2.ECHNICAL DATA
3-2-2-1.DCV
RANGE ACCURACY RESOLUTION
200mV
±(0.5%+3)
100uV
2V 1mV
20V 10mV
200V 100mV
1000V ±(0.8%+10) 1V
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.
3-2-2-2. ACV
RANGE ACCURACY RESOLUTION
2V
±(0.8%+5)
1mV
20V 10mV
200V 100mV
750V ±(1.2%+10) 1V
Input resistance: 10MΩ
Overload protection: 1000V DC or AC peak value
Frequency response: ≤200Vrange: （40～400）Hz ，750V range:（40～200）Hz
Display: sine wave RMS (mean value response)
3-2-2-3.DCA
RANGE ACCURACY RESOLUTIO
N
20uA ±(0.8%+10) 10uA
2mA 1uA
200mA ±(1.2%+8) 100uA
20A ±(2.0%+5) 10mA
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, 20A un-fused
3-2-2-4.ACA
RANGE ACCURACY RESOLUTIO
N
2mA ±(1.0%+15) 1uA
200mA ±(2.0%+5) 100uA
20A ±(3.0%+10) 10mA
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, 20A un-fused
Frequency response: (40～200)Hz
Display: sine wave RMS (mean value response)
3-2-2-5. RESISTANCE（Ω）
RANGE ACCURACY RESOLUTION
200Ω ±(0.8%+5) 0.1Ω
2kΩ
±(0.8%+3)
1Ω
20kΩ 10Ω
200kΩ 100Ω
2MΩ 1kΩ
20MΩ ±(1.0%+25) 10kΩ
Open voltage: less than 0.7V
Overload protection: 250V DC and AC peak value
NOTE: at 200Ω range, the test leads should be short-circuit, and measure the down-lead
resistance, then, subtract from the real measuring.
WARNING: DO NOT input any voltage at resistance range for safety!
3-2-2-6. CAPACITANCE (C)
RANGE ACCURACY RESOLUTIO
N
20nF
±(2.5%+20)
10pF
2uF 1nF
200uF ±(5.0%+10) 100nF
Overload protection: 36V DC or AC peak value
3-2-2-7.DIODE AND CONTINUITY TEST
Range Displaying value Test condition
Positive voltage drop of diode
The positive DC current
is approx. 1mA，negative
voltage is approx. 3V
Buzzer sounds , the resistance is
less than (70±20)Ω
open voltage is approx.
3V
Overload protection: 250V DC or AC peak value
Warning: DO NOT input any voltage at this range for safety!
3-2-2-8. Triode hFE test
Range Display range Test condition
hFE NPN or PNP
0～1000
Basic current is
approx.10uA,Vce is
approx.3V
4. OPERATION
4-1 Front panel description
1. Model
2. LCD display
3. Shine diode
4 .range knob
5 .20A current jack
6.“-” pole jack for capacitance, temp. and test accessory and less than 200mA current test jack.
7.“+”pole jack for capacitance, temp. test accessory and GND.
8. “+”pole jack for volt, resistance and diode.
9. Transistor test jack
See the fig.

Victor VC890D Specifications

General

Brand	Victor
Model	VC890D
Category	Multimeter
Language	English

Summary

Summarize

Safety Notes

General Safety Precautions

Key safety precautions to avoid electric shock, damage, and ensure proper operation.

Technical Characteristics

General Specifications

Details on display, measuring method, sampling rate, and environmental conditions.

DC Voltage Measurement Characteristics

Specifies ranges, accuracy, resolution, and overload protection for DC voltage.

AC Voltage Measurement Characteristics

Specifies ranges, accuracy, resolution, and frequency response for AC voltage.

DC Current Measurement Characteristics

Specifies ranges, accuracy, resolution, and overload protection for DC current.

AC Current Measurement Characteristics

Specifies ranges, accuracy, resolution, and frequency response for AC current.

Resistance Measurement Characteristics

Details ranges, accuracy, resolution, and open voltage for resistance measurements.

Capacitance Measurement Characteristics

Specifies ranges, accuracy, resolution, and overload protection for capacitance.

Diode and Continuity Test Characteristics

Details test conditions, display values, and overload protection for diode/continuity.

Transistor hFE Test Characteristics

Provides range, display, and test conditions for hFE transistor testing.

Operation Guide

Front Panel Description

Identifies and explains the function of each control and display element on the meter's front.

DC Voltage Measurement Procedure

Step-by-step instructions for measuring DC voltage accurately and safely.

AC Voltage Measurement Procedure

Step-by-step instructions for measuring AC voltage accurately and safely.

DC Current Measurement Procedure

Procedure for measuring DC current, including range selection and safety notes.

AC Current Measurement Procedure

Instructions for measuring AC current, with emphasis on current limits and fuse protection.

Resistance Measurement Procedure

How to perform resistance measurements, including notes on high resistance stabilization.

Capacitance Measurement Procedure

Steps for measuring capacitance, including polarity and discharge precautions.

Diode and Continuity Test Procedure

Guide for testing diodes and continuity, including buzzer activation criteria.

Transistor hFE Measurement

Instructions for testing transistor gain (hFE), including NPN/PNP identification.

Auto Power-Off Function

Details the automatic power-off feature and how to restart the meter.

Troubleshooting and Maintenance

General Precautions

Advice on meter handling, storage, and cleaning to ensure longevity.

Battery Replacement

Procedure for replacing the battery when the low battery indicator appears.

Fuse Replacement

Guidance on replacing fuses, emphasizing the use of specified types.

Meter Not Working Properly

Troubleshooting steps for common issues like no display or measurement errors.