VICI VC837 - User Manual

VC837 DIGTAL MULTIMETER Operation Manual
1. General Description
This is a 3 1/2 digital multimeter with high stablility and performance. It uses a LCD with
20mm high figure, which makes the reading clearer and the operation more convenient.
It can test DCV, ACV, DCA, ACA, resistance, capacitance, frequency, NC
V
,dutycycle,
temperature, diode, and continuity. This meter also designed with functions including
unit symbol display, data hold, lighting, auto range, auto power off and warning
functions. To assure high accuracy and resolution, it adopts integrated circuit 8‐bit
microprocessor and a dual integral A/D conversion as LCD driver, giving high resolution
and high accurac
y
. It is an ideal tool for labs, factories and radio‐technology.
2. Safety Instructions
The instrument is designed in compliance with IEC1010 standard (safety standard issued
by International Electro technical Committee). Please read the followingsafety
instructions before operation.
2.1 Check the connection and insulation of test leads to avoid electric shock.
2.2 To avoid electric shock and damage to the meter, do not input voltage exceeding
rated value.
2.3 When measuring voltage higher than DC 60V or AC 40V, please be careful andavoid
electric shock.
2.4 Select correct function and range to avoid wrong operation.
2.5 Move the test leads away from test points when switching to other function.
2.6 Don’t input voltage in current terminal.
2.7 Don’t make any modification to the circuit. It may damage the meter or jeopardize
safety.
2.8 Safety symbols:
“
”Highvoltage,“ ”GND,“ ” Dual insulation, “ ” Refer to manual, “ ”Low
battery indication.
3. Features
3.1 General Characteristics
3.1.1 Display: LCD;
3.1.2 Max display: 6000 (3 5/6 digits, automatic polarity, and unit symbol display);
3.1.3 Measurement method: Analog to digital converter (in micro processorADC+MCU);
3.1.4 Sampling rate: approx.3 times/sec.
3.1.5 Over‐range display: “OL” displayed.
3.1.6 Low battery indicator: “
”
3.1.7 Working environment: (0
～
40)
℃
, relative humidity: <80%;
3.1.8 Store condition: (‐10～50)℃, relative humidity: <80%
3.1.9 Battery: 2 pieces 1.5V battery (“AAA” 7# battery);
3.1.10 Dimension: 140×72×37mm (length x width x height);
3.1.11 Weight: approx. 195g (including battery);
3.1.12 Accessories: test leads, TP01 thermocouple, user manual, holster,giftbox,and
2*1.5V batteries.
3.2 Technical Features
3.2.1 Accuracy: ± (a% × reading + digits). To assure accuracy, the ambient temperature
should be (23±5) ℃ , relative humidity <75%. One year accuracy is guaranteed since
production date.
3.2.2 DC Voltage（DCV）
Range Accuracy Resolution
600mV
±(0.5%+4)
0.1mV
6V 1mV
60V 10mV
600V ±(1.0%+4) 100mV
Input impedance: at 200mv range >40MΩ, at other ranges is 10MΩ.
Overload protection: 600V DC/AC rms.
3.2.3. AC Voltage
（
ACV
）
Range Accuracy Resolution

Summary

General Description

Safety Instructions

General Safety Precautions

Key safety guidelines to prevent electric shock and meter damage during operation.

Safety Symbols

Explanation of symbols used for safety indications.

Features and Technical Specifications

General Characteristics

Overview of display, measurement method, environmental conditions, and accessories.

Technical Features Overview

Details on accuracy, measurement conditions, and general performance specifications.

DC Voltage (DCV) Specifications

Range, accuracy, and resolution for DC voltage measurements.

AC Voltage (ACV) Specifications

Range, accuracy, and resolution for AC voltage measurements.

DC Current (DCA) Specifications

Range, accuracy, and resolution for DC current measurements.

AC Current (ACA) Specifications

Range, accuracy, and resolution for AC current measurements.

Resistance (Ω) Specifications

Range, accuracy, and resolution for resistance measurements.

Capacitance (C) Specifications

Range, accuracy, and resolution for capacitance measurements.

Frequency Specifications

Range, accuracy, and resolution for frequency measurements.

Diode and Continuity Test

Procedure and conditions for diode testing and continuity checks.

Temperature (°C;°F) Specifications

Range, accuracy, and resolution for temperature measurements.

Operation Guide

Panel Description and Controls

Overview of the meter's display, LCD symbols, and physical controls like the rotary switch.

Input Terminals

Description of the A, VΩmA, and COM terminals for connections.

Function Key Operations

How to use SELECT, TORCH, RANGE/REL, and HOLD/Light keys for meter functions.

DC Voltage (DCV) Measurement

Step-by-step guide for measuring DC voltage, including range selection and connection.

AC Voltage (ACV) Measurement

Step-by-step guide for measuring AC voltage, including range selection and connection.

DC Current (DCA) Measurement

Step-by-step guide for measuring DC current, including terminal usage and range.

AC Current (ACA) Measurement

Step-by-step guide for measuring AC current, including terminal usage and range.

Resistance Measurement

Procedure for measuring resistance, including range selection and safety notes.

Capacitance Measurement

Procedure for measuring capacitance, including connection and discharge notes.

Frequency Measurement

Procedure for measuring frequency, including signal source connection and voltage limits.

Non-Contact Voltage (NCV) Detect

How to use the NCV function and its limitations due to interference.

Diode and Continuity Test

Steps for performing diode forward/backward tests and continuity checks with buzzer.

Temperature Measurement

Procedure for measuring temperature using the K-type thermocouple.

Maintenance and Battery Replacement

General Maintenance Guidelines

Notes on avoiding modifications, proper handling, cleaning, and storage.

Battery Replacement Procedure

Steps to replace the battery when the low battery indicator is shown.

Fuse Replacement Procedure

Steps to replace the fuse with one of the same type and specification.

Trouble Shooting

Troubleshooting Common Issues

Guidance on resolving common problems like no reading, signal appearance, or big error values.

VICI VC837 Specifications

General

Brand	VICI
Model	VC837
Category	Multimeter
Language	English