Mastech MS8239B Manuel utilisateur

MASTECH®

MS8239B

DIGITAL MULTIMETER

USER’S MANUAL

TABLE OF CONTENT

LIMITED WARRANTY AND LIMITATION OF

LIABILITY ...................錯誤! 尚未定義書籤。

Out of the Box ................................................ 3

Accessories .....................................................4

Certification....................................................7

INTRODUCTION ........................................... 7

Overview ........................................................7

Figures and Components................................7

Buttons and Components............................8

Display Description ................................... 10

USING THE METER..................................... 11

Preparation ...............................................11

DC/AC Voltage Measurement...................12

AC/DC Current Measurement ...................13

Resistance Measurement..........................15

Diode......................................................... 16

Continuity.................................................. 16

1.5V 9V and 12V Battery Test ...................17

SPECIFICATIONS ........................................ 18

General Specification ...................................18

Technical Specifications ...............................19

MAINTENANCE AND REPAIR ..................... 23

Repair........................................................23

Test Leads Replacement...............................24

Replacing Batteries .....................................25

Replacing Fuse .............................................25

LIMITED WARRANTY AND

LIMITATION OF LIABILITY

This MS8239B product from MASTECH will be free from

defects in material and workmanship for one year from

the date of purchase. This warranty does not cover

fuses, disposable batteries, or damage from drops,

neglect, misuse, alteration, contamination, or abnormal

conditions of operation or handling. Resellers are not

authorized to extend any other warranty on MASTECH’s

behalf. To obtain service during the warranty period,

contact your nearest MASTECH authorized service

center to obtain return authorization information and

then send the product to that Service Center with a

description of the problem.

Out of the Box

Check the Meter and accessories thoroughly before using

the Meter. Contact your local distributor if the Meter or

any components are damaged or malfunction.

Accessories

Test Leads 1set

1.5V AAA Battery 2pcs

User’s Manual

Safety Information

WARNING

TO REDUCE THE RISK OF FIRE, ELECTRICAL SHOCK,

PRODUCT DAMAGE OR PERSONAL INJURY, PLEASE

FOLLOW THE SAFETY INSTRUCTIONS DESCRIBED IN THE

USER’S MANUAL. READ THE USER’S MANUAL BEFORE

USING THE METER.

WARNING

TO ENSURE SAFE OPERATION AND LIFE OF THE METER,

DO NOT PLACE THE METER IN ANY ENVIRONMENT WITH

HIGH PRESSURE, HIGH TEMPERATURE, DUST, EXPLOSIVE

GAS OR VAPOR.

Avoid shaking, dropping or any kind of

impacts when using or transporting the Meter.

To avoid electric shock or personal injury,

repairs or servicing not covered in this manual

should be performed only by qualified

personnel.

Avoid direct exposure to sunlight to ensure

extended life of the Meter.

Do not place Meter in a strong magnetic field;

this may cause false readings.

Use only the batteries indicated in the

Technical Spec.

Avoid exposing batteries to humidity. Replace

batteries as soon as the low battery indicator

appears.

Please keep the original packing for future

shipping purposes (ex. Calibration)

After opening the box, check for any damage

during delivery.

Safety Symbols on the Meter

Important safety information, please refers

to the user manual

Earth ground

Indicates compliance with requirements for

double insulation

Possible of high voltage

Fuse must be replaced with ratings specified

in the manual.

Important Safety Information

Never use the Meter to measure voltages that

might exceed 600V DC/AC above earth

ground.

Always be careful when working with voltages

above 60V DC or 30V AC RMS. Keep fingers

behind the probe barriers while measuring.

Never connect the Meter leads across a

voltage source while the rotary switch is in

the resistance, diode or continuity mode.

Doing so can damage the Meter.

Do not perform resistance, diode and

continuity measurements on powered circuits.

Inspect test leads and probes for cracks,

breaks or crazes on the insulation before

using the Meter.

Repair or maintenance should be

implemented by trained personnel.

Certification

CAT III: This meter has meet IEC61010-1

standard with an overvoltage category (600V

CAT III) and pollution degree 2.

The Meter is compiled to EMC

requirements.

Introduction

Overview

The MS8239B is a compact and portable multifunction

digital multimeter featuring an easy-to-read LCD screen.

Basic functions include: AC/DC voltage, AC/DC current,

resistance, diode, continuity measurements and battery

test. This MS8239B is ideal for any entry level use.

Figures and Components

Buttons and Components

1. LCD (liquid-crystal display)

2. HOLD Button

3. Rotary Switch

4. 10A Input Jack

5. COM Input Jack

6. mA/V/Ω/ Input Jack

Front Panel

Table des matières

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