Unit UT201 Manual de usuario

Model UT201/202: OPERATING MANUAL

Table of Contents

Title Page

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 Voltage Measurement

B. AC Voltage Measurement

C. Measuring Resistance

D. Testing Diodes

E. Testing for Continuity

F. Temperature Measurement

G. AC Current Measurement

Sleep Mode

Specifications

A. General Specifications

B. Environmental Restriction

Accuracy Specifications

A. AC Voltage

B. DC Voltage

C. Resistance

D. Continuity Test

E. Diode Test

F. Temperature

G. AC Current

Maintenance

A. General Service

B. Replacing the Battery

Table of Contents

Title Page

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 Voltage Measurement

B. AC Voltage Measurement

C. Measuring Resistance

D. Testing Diodes

E. Testing for Continuity

F. Temperature Measurement

G. AC Current Measurement

Sleep Mode

Specifications

A. General Specifications

B. Environmental Restriction

Accuracy Specifications

A. AC Voltage

B. DC Voltage

C. Resistance

D. Continuity Test

E. Diode Test

F. Temperature

G. AC Current

Maintenance

A. General Service

B. Replacing the Battery

Model UT201/202: 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 Multimeter Model UT201/202 (hereafter referred

to as “the Meter”) are 3 1/2 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 measure AC/DC Voltage, AC Current,

Resistance, Temperature( ), Diodes, Continuity

and so on.

oF/ oC

Model UT201/202: OPERATING MANUAL

In the event you find any missing or damage, please

contact your dealer immediately.

Unpacking Inspection

Open the package case and take out the Meter. Check

the following items carefully to see any missing or damaged

part:

Point Contact Temperature Probe

(UT202 only)

4 1.5V Battery (AAA) 2 pieces

Model UT201/202: OPERATING MANUAL

Item

Description

English Operating Manual

Test Lead

Qty

1 piece

1 pair

1 piece

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 8.

Model UT201/202: OPERATING MANUAL

Rules For Safe Operation (1)

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. 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.

l Whenmeasurementhasbeencompleted,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.

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 Do not carry out the measurement when the

Meter’s back case and battery compartment are

not closed to avoid electric shock.

l Do not input higher than 600V between the Meter’s

terminals and the grounding to avoid electric

shock and damages to the Meter.

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:

Warning

Model UT201/202: OPERATING MANUAL

Rules For Safe Operation (2)

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.

l Disconnect circuit power and discharge all high

-voltage capacitors before testing resistance,

continuity and diode.

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 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 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 UT201/202: OPERATING MANUAL

International Electrical Symbols

AC (Alternating Current).

DC (Direct Current).

AC or DC.

Grounding.

Double Insulated.

Continuity Test.

Diode.

Fuse.

Warning. Refer to the Operating Manual.

Conforms to Standards of European Union.

Capacitance Test

Deficiency of Built-In Battery

Model UT201/202: OPERATING MANUAL

The Meter Structure (see figure 1)

( figure 1)

1. Input Terminals

2. LCD Display

3. Functional Buttons

4. Rotary Switch

5. Trigger: press the lever to open the transformer jaws.

When the pressure on the lever is released, the jaws

will close.

6. Hand Guards: to protect user’s hand from touching

the dangerous area.

7. Transformer Jaws: designed to pick up theAC current

flowing through the conductor. It could transfer current

to voltage.

Model UT201/202: OPERATING MANUAL

Rotary Switch

Below table indicated for information about the rotary switch

positions.

Rotary

Switch

Position Function

AC/DC voltage measurement.

: Diode test.

: Resistance measurement.

Ω

Power is turned off.OFF

: Continuity test.

Ω

Temperature measurement

(UT202 only)

oCoF

AC current measurement range from 0.001A

to 400.0A

Model UT201/202: OPERATING MANUAL

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