Unit UT208A Manual de usuario

UT207A/208A/209A Operating Manual

Overview

Unpacking Inspection

Safety Information

Rules for Safe Operation

International Electrical Symbols

The Meter Structure

Display Symbols

Functional Buttons

The Effectiveness of Functional Buttons

Measurement Operation

A. DC/AC Voltage Measurement

B. Measuring Resistance

C. Testing for Continuity

D. Testing Diodes

E. Frequency and Duty Cycle Measurement

F. DC/AC Current Measurement

G. Temperature Measurement(UT208A only)

H. Capacitance measurement(UT208A only)

Table of Contents

Title Page

UT207A/208A/209A Operating Manual

Specications

A. General Specications

B. Environmental Requirements

Accuracy Specications

Maintenance

A. General Service

B. Replacing the Battery

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 UT207A/UT208A/UT209A (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 measure AC/DC Voltage, AC/DC Current, Frequency, Duty Cycle,

Resistance, Diodes, Continuity and etc.

UT208A has an extra temperature and Capacitance feature.

UT207A/208A/209A 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

1 English Operating Manual 1 piece

2 Test Lead 1 pair

3 Point Contact Temperature Probe (Only UT208A) (This

included point contact temperature probe can only be used

up to 230℃. For any measurement is higher than that, the

rod type temperature probe must be used)

4 Tool box 1 piece

5 9V Battery (NEDA1604A or 6LF22) 1 piece

In the event you nd any missing or damage, please contact your dealer

immediately.

1 pair

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, xed installation, with smaller transient overvoltages

than CAT IV.

Use the Meter only as specied in this operating manual, otherwise the protection

provided by the Meter may be impaired.

In this manual, a Warning identies conditions and actions that pose hazards to

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

A Note identies 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.

UT207A/208A/209A 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 specications before using the Meter.

● Do not apply more that 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.

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

UT207A/208A/209A Operating Manual

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 1000V in DC or 750 V in AC 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 70V in DC or 33V 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, inammable and strong magnetic eld. The

performance of the Meter may deteriorate after dampened.

● When using the test leads, keep your ngers behind the nger guards.

● To avoid electric shock, do not touch the bare wires, connectors, unused

input terminals or the circuit under testing during measurement.

● 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

UT207A/208A/209A Operating Manual

electrical specications 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.

International Electrical Symbols

Double Insulated

Grounding

Warning. Refer to the Operating Manual

AC (Alternating Current)

DC (Direct Current)

Continuity Test

Diode

Deciency of Built-In Battery

AC or DC

Danger of High Voltage

Conforms to Standards of European Union

UT207A/208A/209A Operating Manual

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