Unit UT207 Manual de usuario

Model UT207/208

OPERATING MANUAL

Table of Contents

Title Page

Overview

Unpacking Inspection

Safety Information

Rules For Safe Operation

International Electrical Symbols

The Meter Structure

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

Model UT207/208: OPERATING MANUAL

Title Page

G. DC Current Measurement

H. AC Current Measurement

I. UT208 only: Temperature Measurement

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

Model UT207/208: OPERATING MANUAL

Title Page

I. AC Current

J. Temperature (UT208 only)

Maintenance

A. General Service

B. Replacing the Battery

Model UT207/208: 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 UT207/UT208 (hereafter referred to as “the Meter”)

are 3 5/6 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, Surge Current and etc.

UT208 has an extra temperature feature.

Model UT207/208: OPERATING MANUAL

Item Description Qty

English Operating Manual

Test Lead

Point Contact Temperature Probe (Only UT208) (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)

Tool box

9V Battery (NEDA1604A or 6LF22)

1 piece

1 pair

1 piece

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.

Model UT207/208: OPERATING MANUAL

Safety Information

This Meter complies with the standards IEC61010-1; IEC61010-2-032: 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 10.

Model UT207/208: OPERATING MANUAL

Rules For Safe Operation

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

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 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 awayl

Model UT207/208: OPERATING MANUAL

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

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 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, 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.

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.

Model UT207/208: OPERATING MANUAL

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.

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 UT207/208: OPERATING MANUAL

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