Unit UT20B Manuel utilisateur

Page

Title

Overview

Unpacking Inspection

Safety Information

Rules For Safe Operation

International Electrical Symbols

Rotary Switch

Display Symbols

Measurement Operation

A. AC Voltage Measurement

B. DC Current Measurement

C. Square Wave Output

D. Battery Test

E. Diodes Test

F. Measuring Resistance

G. DC Voltage Measurement

Table of Contents (1)

Model UT20B: OPERATING MANUAL

Page

Table of Contents (2)

Title

General Specifications

Accuracy Specifications

A. AC Voltage

B. DC Current

C. Square Wave Output

D. Battery Test

E. Diodes Test

F. Resistance Test

G. DC Voltage

Maintenance

A. General Service

B. Replacing the Battery

C. Replacing the Fuses

Model UT20B: OPERATING MANUAL

This Operation Manual covers information on safety and cautions. Please read the

relevant information carefully and observe all the Warnings and Notes strictly.

Warning

To avoid electric shock or personal injury, read the "Safety Information" and

"Rules for Safe Operation" carefully before using the Meter.

Digital Multimeter Model UT20B (hereafter referred to as "the Meter") is a pocket-

size hand-held digital multimeter with advanced design, multiple functions, and

reliable performance. Because of its small size, it is very convenience for user to

work with it. It is very easy to operate, so it is suitable to the beginner of multimeter.

Besides the basic functions, the Meter also has some extraordinary functions such

as battery test and square wave output.

Overview

Model UT20B: OPERATING MANUAL

Open the packing case and take out the Meter. Check the following items carefully

to see any missing or damaged part:

In the event you find any missing or damage, please contact your dealer immediately.

Item

Description

Operating Manual

Test Lead (affixed onto the Meter)

12V Battery (A23) (installed)

Qty

1 piece

1 pair

1 piece

Unpacking Inspection

Model UT20B: OPERATING MANUAL

This Meter complies with the standards IEC61010: in pollution degree 2, overvoltage

category (CAT. II 300V) and double insulation.

CAT. II: Local level, appliance, PORTABLE EQUIPMENT etc., with smaller transient

voltage overvoltages than CAT. III.

Use the Meter only as specified in this operating manual, otherwise the protection

provided by the Meter may be impaired.

In this manual, a Warning identifies conditions and actions that pose hazards to

the user, or may damage the Meter or the equipment under test.

A Note identifies the information that user should pay attention on.

International electrical symbols used on the Meter and in this Operating Manual are

explained on page 9.

Safety Information

Model UT20B: OPERATING MANUAL

Warning

To avoid possible electric shock or personal injury, and to avoid possible

damage to the Meter or to the equipment under test, adhere to the following

rules:

lBefore using the Meter inspect the case. Do not use the Meter if it is

damaged or the case (or part of the case) is removed. Look for cracks or

missing plastic. Pay attention to the insulation around the connectors.

lInspect the test leads for damaged insulation or exposed metal. Check

the test leads for continuity.

lDo not apply more than the rated voltage, as marked on the Meter, between

the terminals or between any terminal and grounding.

lThe rotary switch should be placed in the right position and no any

changeover of range shall be made during measurement is conducted to

prevent damage of the Meter.

Rules For Safe Operation (1)

Model UT20B: OPERATING MANUAL

Rules For Safe Operation (2)

lWhen the Meter working at an effective voltage over 60V in DC or 30V rms

in AC, special care should be taken for there is danger of electric shock.

lUse the proper function and range for your measurements.

lDo not use or store the Meter in an environment of high temperature,

humidity, explosive, inflammable and strong magnetic field. The

performance of the Meter may deteriorate after dampened.

lWhen using the test leads, keep your fingers behind the finger guards.

lDisconnect circuit power and discharge all high-voltage capacitors before

testing resistance, diodes or current.

lBefore measuring current, check the Meter's fuses and turn off power to

the circuit before connecting the Meter to the circuit.

lReplace the battery as soon as the battery indicator appears. With a

low battery, the Meter might produce false readings that can lead to electric

shock and personal injury.

lTurn the Meter power off before opening the Meter case.

lWhen servicing the Meter, use only the same model number or identical

Model UT20B: OPERATING MANUAL

Rules For Safe Operation (3)

electrical specifications replacement parts.

lThe internal circuit of the Meter shall not be altered at will to avoid damage

of the Meter and any accident.

lSoft cloth and mild detergent should be used to clean the surface of the

Meter when servicing. No abrasive and solvent should be used to prevent

the surface of the Meter from corrosion, damage and accident.

lThe Meter is suitable for indoor use.

lTurn the Meter off when it is not in use and take out the battery when not

using for a long time.

lConstantly check the battery as it may leak when it has been using for

some time, replace the battery as soon as leaking appears. A leaking

battery will damage the Meter.

Model UT20B: OPERATING MANUAL

International Electrical Symbols

AC (Alternating Current)

DC (Direct Current)

Grounding.

Double Insulated.

Deficiency of Built-In Battery.

Diode.

Fuse.

Warning. Refer to the Operating Manual.

Conforms to Standards of European Union.

Model UT20B: OPERATING MANUAL

Below table indicated for information about the rotary switch positions.

Rotary Switch

Rotary Switch Position

OFF

Ω

Function

Turn on or off the power.

AC voltage measurement range from 200V to 300V.

DC current measurement range from 2000µA to 200mA.

Square wave output.

Battery test (1.5V & 9V battery).

Diode test.

Resistance measurement range from 200Ωto 2000kΩ.

DC voltage measurement range from 200mV to 300V.

Display Symbols

Symbol Meaning

Indicates negative reading.

The input value is too large for the selected range.

Model UT20B: OPERATING MANUAL

Table des matières

Manuels Multimètre populaires d'autres marques

Agilent Technologies

Agilent Technologies 34420A Manuel utilisateur

Fluke

Fluke 83 Manuel utilisateur

Hameg

Hameg HM 8012 Manuel utilisateur

Mastech

Mastech MY70 Manuel utilisateur

Steren

Steren MUL-300 Manuel utilisateur

Somogyi Elektronic

Somogyi Elektronic home SMA 92 Manuel utilisateur

Gossen MetraWatt

Gossen MetraWatt METRAmax 6 Manuel utilisateur

PeakTech

PeakTech 4000 Manuel d'utilisation et d'entretien

YOKOGAWA

YOKOGAWA 90050B Manuel utilisateur

Gossen MetraWatt

Gossen MetraWatt METRALINE DMM16 Manuel utilisateur

Fluke

Fluke 8846A Manuel d'utilisation et d'entretien

Tempo Communications

Tempo Communications MM200 Manuel utilisateur

Elenco Electronics

Elenco Electronics CM-1555 Manuel utilisateur

Mastech

Mastech MS8238C Manuel utilisateur

SDAR

SDAR 830A, 830B, 830D, 830C Manuel utilisateur

RS PRO

RS PRO RS-9519BT Manuel utilisateur

BGS technic

BGS technic 8890 Manuel utilisateur

Amprobe

Amprobe Hexagon 60 Manuel utilisateur