Unit UT50E Bedienungsanleitung

Page

Model UT50E: OPERATING MANUAL

Table of Contents

Title

Overview

Unpacking Inspection

Safety Information

Rules For Safe Operation

International Electrical Symbols

The multimeter Structure

Functional Buttons

Display Symbols

Measurement Operation

A. DC Voltage Measurement

B. AC Voltage Measurement

C. DC Current Measurement

D. AC Current Measurement

E. Measuring Resistance

F. Measuring Diodes & Continuity

G. Frequency Measurement

H. Temperature Measurement

I. Capacitance Measurement

General Specifications

Sleep Mode

Turning on the Auto Display Backlight

Accuracy Specifications

A. DC Voltage

B. AC Voltage

C. DC Current

D. AC Current

Page

I. Capacitance 31

C. Replacing the Fuses

Title

E. Resistance Test

F. Diodes and Continuity Test

G. Frequency

H. Temperature

Maintenance

A. General Service

B. Replacing the Battery

Model UT50E: OPERATING MANUAL

Overview

Warning

To avoid electric shock or personal injury, read the

"Safety Information" and "Rules for Safe Operation"

carefully before using the Meter.

Digital Multimeters Model UT50E (hereafter referred to

as “the Meter”) is a 4 1/2 digits with steady operations,

fashionable structure and highly reliable hand-held

measuring instrument having 30 measurement positions.

The multimeter uses large scale of integrated circuit with

double integrated A/D converter as its core and has full

range overload protection. The multimeter not only can

measure AC/DC Voltage, AC/DC Current, Resistance,

Capacitance, Temperature, Frequency, Diodes and

Continuity, but also has Data Hold, Full Icon Display and

Sleep Mode features.

The multimeter adopted advanced “co-injection”

technique in order to provide sufficient insulation and

anti-shaking. In addition, theAutomatic Display Backlight

feature enables user to work in a dim condition.

Model UT50E: OPERATING MANUAL

Unpacking Inspection

Open the package case and take out the multimeter.

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.

Model UT50E: OPERATING MANUAL

Item

Description

English Operating Manual

Test Lead

Test Clip

Point Contact Temperature Probe

Qty

1 piece

1 pair

1 piece

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 on.

International electrical symbols used on the Meter and

in this Operating Manual are explained on page 8.

Model UT50E: 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. Donot

use the Meter if it is damaged or the case (orpart

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 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.

l When using the test leads, keep your fingers

behind the finger guards.

Model UT50E: OPERATING MANUAL

Rules For Safe Operation (2)

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, test clips and temperature

probe 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 UT50E: OPERATING MANUAL

International Electrical Symbols

AC (Alternating Current).

DC (Direct Current).

AC or DC.

Grounding.

Double Insulated.

Deficiency of Built-In Battery.

Continuity Test.

Diode.

Fuse.

Warning. Refer to the Operating Manual.

Conforms to Standards of European Union.

Model UT50E: OPERATING MANUAL

The multimeter Structure (see figure 1)

( figure 1)

1LCD Display

2Data Hold Button.

3Rotary Switch

4Power

5COM Input Terminal

620A Input Terminal

7mA Input Terminal

8V oCInput Terminal

Model UT50E: OPERATING MANUAL

Functional Buttons

Below table indicated for information about the functional

button operations

Button Operation Performed

HOLD

(Blue Button)

POWER

(Yellow Button)

Model UT50E: OPERATING MANUAL

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