Unit UT203 Bedienungsanleitung

Digital Clamp Multimeters

P/N: 41416301

Registered Design No.: ZL02 3 357791.6

UT203/204

Table of Contents

Overview

Unpacking Inspection

Safety Information

Rules For Safe Operation

International Electrical Symbols

The Meter Structure

Rotary Switch

Functional Buttons

The Effectiveness of Functional Buttons

Display Symbols

Measurement Operation

A. DC/AC Voltage Measurement

B. Measuring Resistance

C. Testing Diodes

D. Testing for Continuity

E. Frequency Measurement

F. Duty Cycle Measurement

G. DC/AC Current Measurement

Title Page

Model UT203/204: OPERATING MANUAL

Sleep Mode

Specifications

A. General Specifications

B. Environmental Requirements

Accuracy Specifications

A. DC Voltage

B. AC Voltage

C. Resistance

D. Diode Test

E. Continuity Test

F. Frequency

G. Duty Cycle

H. DC Current

I. AC Current

Maintenance

A. General Service

B. Replacing the Battery

Title Page

Model UT203/204: OPERATING MANUAL

Overview

This Operating 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 Clamp Multimeter Model UT203/UT204 (hereafter referred to as “the Meter”)

are 3 3/4 digits with steady operations, fashionable structure and highly reliable

measuring instrument. The Meter uses large scale of integrated circuit with double

integrated A/D converter as its core and has full range overload protection.

The Meter can not only measure AC/DC Voltage, AC/DC Current, Frequency, Duty

Cycle, Resistance, Diodes, Continuity but also it has Data Hold, Sleep Mode and

Relative Mode features.

UT204 has an extra True RMS feature.

Model UT203/204: OPERATING MANUAL

Unpacking Inspection

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

to see any missing or damaged part:

Item Description Qty

English Operating Manual

Test Lead

Test Clip

Carrying Bag

9V Battery (NEDA1604, 6F22 or 006P)

1 piece

1 pair

1 piece

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

Model UT203/204: OPERATING MANUAL

Safety Information

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

category (CAT. II 600V, CAT. III 300V) and double insulation.

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

overvoltages than CAT. III.

CAT. III: Distribution level, fixed installation, with smaller transient overvoltages than

CAT. IV

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 to.

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

explained on page 9.

Model UT203/204: OPERATING MANUAL

Rules For Safe Operation

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:

Before 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.

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

leads for continuity. Replace damaged test leads with identical model number

or electrical specifications before using the Meter.

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

terminals or between any terminal and grounding. If the value to be measured

is unknown, use the maximum measurement position and reduce the range step

by step until a satisfactory reading is obtained.

When measurement has been completed, disconnect the connection between

the test leads and the circuit under test, remove the testing leads away from the

input terminals of the Meter and turn the Meter power off.

Model UT203/204: OPERATING MANUAL

The 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.

Do not carry out the measurement when the Meter’s back case and battery

compartment are not closed to avoid electric shock.

Do not input higher than 600V between the two Meter’s input terminal to avoid

electric shock and damages to the Meter.

When 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.

Use the proper terminals, function, and range for your measurements.

Do 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.

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

Disconnect circuit power and discharge all high-voltage capacitors before testing

resistance, continuity and diode.

Replace 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.

When servicing the Meter, use only the same model number or identical electrical

specifications replacement parts.

Model UT203/204: OPERATING MANUAL

When servicing the Meter, use only the same model number or identical electrical

specifications replacement parts.

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

the Meter and any accident.

Soft 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.

The Meter is suitable for indoor use.

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

for a long time.

Constantly 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 UT203/204: OPERATING MANUAL

International Electrical Symbols

AC (Alternating Current)

DC (Direct Current)

AC or DC

Grounding

Double Insulated

Warning. Refer to the Operating Manual

Deficiency of Built-In Battery

Continuity Test

Diode

Fuse

Conforms to Standards of European Union

Model UT203/204: OPERATING MANUAL

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