Unit UT58E Manuale utente

Table of Contents

Title Page

Overview

Unpacking Inspection

Safety Information

Rules For Safe Operation

International Electrical Symbols

The Meter Structure

Rotary Switch

Functional Buttons

Display Symbols

Measurement Operation

A. DC and AC Voltage Measurement

B. DC and AC Current Measurement

C. Measuring Resistance

D. Measuring Diodes and Continuity

E. Frequency Measurement

F. Temperature Measurement

G. Capacitance Measurement

H. Measuring Transistor

Sleep Mode

Operation of Hold Mode

General Specifications

Accuracy Specifications

A. DC Voltage

B. AC Voltage

C. DC Current

D. AC Current

E. Resistance Test

F. Diodes and Continuity Test

G. Frequency

H. Temperature

I. Capacitance

J. Transistor test

Model UT58E: OPERATING MANUAL

Maintenance

A. General Services

B. Replacing the Fuses

C. Replacing the Battery

Title Page

Model UT58E: OPERATING MANUAL

Digital Multimeters Model UT58E (hereafter referred to

as “the Meter”) is 4 1/2 digits with ex-large LCD, steady

operations, fashionable structure and highly reliable

hand-held 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 has 28 different measuring

functions. It has not only can measure AC/DC Voltage,

AC/DC Current, Resistance, Temperature, Capacitance,

Frequency, Transistor, Diode and Continuity, but also

have Data Hold, Full Icon Display, Overload Protection

and Sleep Mode features.

Warning

To avoid electric shock or personal injury, read the

“Safety Information” and “Rules for Safety Operation”

carefully before using the Meter.

Overview

Model UT58E: 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:

In the event you find any missing or damage, please

contact your dealer immediately.

1 English Operating Manual 1 piece

2 Test Lead 1 pair

3 Multi-Purpose Socket 1 piece

4 Test Clip

5 Point Contact Temperature Probe

6 Holster 1 piece

7 9V Battery (NEDA 1604, 6F22 or 009P)1 piece

1 piece

Model UT58E: OPERATING MANUAL

Item Description Qty

Safety Information

This Meter complies with the standards IEC61010: in

pollution degree 2, overvoltage category (CAT. II 1000V,

CAT. III 600V) and double insulation.

CAT. II: Local level, appliance, PORTABLE EQUIPMENT

etc., with smaller transient voltage 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 page8

Model UT58E: OPERATING MANUAL

Rules For Safe Operation (1)

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:

l 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.

l 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.

l Do not apply more than the rated voltage, as

marked on the Meter, between the terminals or

between any terminal and grounding.

l 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.

l 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.

l Use the proper terminals, function, and range for

your measurements.

l If the value to be measured is unknown, use the

maximum measurement position and reduce the

range stop by step until a satisfactory reading is

obtained.

l 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.

Model UT58E: OPERATING MANUAL

Rules For Safe Operation (2)

l When using the test leads, keep your fingers

behind the finger guards.

l Disconnect circuit power and discharge all high

-voltage capacitors before testing resistance,

continuity, diodes, capacitance or current.

l Before measuring current, check the Meter’s

fuses and turn off power to the circuit before

connecting the Meter to the circuit.

l 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.

l Remove test leads and multi-purpose socket from

the Meter and turn the Meter power off before

opening the Meter case.

l When servicing the Meter, use only the same

model number or identical electrical specifications

replacement parts.

l The internal circuit of the Meter shall not be altered

at will to avoid damage of the Meter and any accident.

l 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.

l The Meter is suitable for indoor use.

l Turn the Meter power off when it is not in use

and take out the battery when not using for a long

time.

l 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 UT58E: OPERATING MANUAL

International Electrical Symbols

AC (Alternating Current).

DC (Direct Current).

Grounding.

Double Insulated.

Deficiency of Built-In Battery.

Warning. Refer to the Operating Manual.

Conforms to Standards of European Union.

Diode.

Fuse.

Continuity Test.

Model UT58E: OPERATING MANUAL

( figure 1)

The Meter Structure (see figure 1)

1 LCD Display

2HOLD Button.

3 Rotary Switch

4COM Input Terminal

5POWER

6 Other Input Terminal.

7mA Input Terminal

820A Input Terminal

Model UT58E: OPERATING MANUAL

Rotary Switch

Below table indicated for information about the rotary switch

positions.

DC voltage measurement.

AC voltage measurement.

Transistor Test

AC Current Measurement

DC Current Measurement

Fcx Capacitance Test

oCTemperature Measurement

Diode test

Continuity test

Resistance measurement.

Hz Frequency Measurement

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