Unit UT231 Manual de usuario

P/N: 41451518

UT231

Digital Power Clamp

Meter

Operating Manual

Model UT231

OPERATING MANUAL

TABLE OF CONTENTS

TITLE PAGE

Model UT231: OPERATING MANUAL

Overview

Unpacking Inspection

Safety Information

Rules For Safe Operation

International Electrical Symbols

The Meter Structure

A. The Meter Front Structure

B. The Meter Back and Bottom Structure

Functional Buttons

Display Symbols

Measurement Operation

A. AC Voltage + Frequency Measurement

B. AC Current + AC Voltage Measurement

C. Active Power + Phase Angle Measurement

D. Apparent Power + Reactive Power Measurement

E. Power Factor + Phase Angle Measurement

F. Active Energy + Time Measurement

G. Temperature + Temperature Measurement

True RMS Measurement and Average Value Measurement

Model UT231: OPERATING MANUAL

TABLE OF CONTENTS

TITLE PAGE

Three Phases Four Wires and Three Phases Three Wires

Measurement Method

Specifications

A. General Specifications

B. Environmental Requirements

Accuracy Specifications

A. AC Voltage

B. Frequency

C. AC Current

D. Active Power

E. Apparent Power

F. Reactive Power

G. Power Factor

H. Phase Angle

I. Active Energy

J. Temperature

Maintenance

A. General Service

B. Replacing the Battery

Model UT231: OPERATING MANUAL

This Operating Manual covers information on safety

and cautions. Please read the relevant information

carefully and observe all the Warnings and Notes

strictly.

To avoid electric shock or personal injury, read the

“Safety Information” and “Rules for Safe Operation”

carefully before using the Meter.

Model UT231 is a digital power clamp meter (hereafter

referred to as “the Meter”) is a handheld intelligent

power meter which has both the features of digital

current meter and also power measurement meter.

The Meter can measure Voltage, Current,Active Power,

Apparent Power, Reactive Power, Power Factor, Phase

Angle, Frequency,Active Energy, Temperature and etc.

Warning

Open the package case and take out the Meter. Check

the following items carefully to see any missing or

damaged part:

Unpacking Inspection

Item

Description

English Operating Manual

Test Lead

Alligator Clip

Point Contact Temperature Probe

USB Interface Cable

Software

Tool Box

1.5V Battery (LR6)

Qty

1 piece

1 pair

1 piece

4 pieces

In the event you find any missing or damage, please

contact your dealer immediately.

Overview

Model UT231: OPERATING MANUAL

Safety Information

This Meter complies with the standards IEC61010: in

pollution degree 2, overvoltage category (CAT. III 600V,

CAT IV 300V) and double insulation.

CAT. III: Distribution level, fixed installation, with smaller

transient overvoltages than CAT. IV.

CAT IV: Primary supply level, overhead lines, cable

systems.

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 6.

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. 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.

Model UT231: OPERATING MANUAL

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.

Do not carry out the measurement when the

Meter’s back case and / or battery door is opened

to avoid electric shock.

When the Meter working at an effective voltage

over 30V in AC, special care should be taken.

Use the proper terminals and function 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.

Do not use the Meter if the surface of it is wet

or the user’s hands are wet.

When using the test leads, keep your fingers

behind the finger guards.

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 opening the battery door, must make sure

the Meter is power off.

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.

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 UT231: OPERATING MANUAL

The Meter Structure

A. The Meter Face View (see figure 1)

Figure 1

Brack Red

International Electrical Symbols

AC (Alternating Current)

Grounding

Double Insulated

Warning. Refer to the Operating Manual

Deficiency of Built-In Battery

Danger of High Voltage

Conforms to Standards of European Union

Model UT231: OPERATING MANUAL

Transformer Jaw: designed to pick up the AC

and DC current flowing through the conductor.

It could transfer current to voltage. The tested

conductor must vertically go through the Jaw

center.

Hand Guards: to protect user’s hand from

touching the dangerous area.

Power button

Max/ button

MENU button

LOAD button (recall data)

CLEAR button (clear the stored reading)

MIN/ button

Temperature negative Input Terminal

Temperature positive Input Terminal

V: Voltage Input Terminal

COM Input Terminal

MAX/MIN button

CAL: calibration button

SAVE button (data store button)

USB button

LIGHT button (auto display backlight button)

HOLD button

LCD Display

Testing Leads (Red and Black)

Temperature Probe

Model UT231: OPERATING MANUAL

B.The Meter Back and Bottom Structure

(see figure 2)

1 Infrared Interface

2 USB Communication Interface Cable

Figure 2

Functional Buttons

Below table indicated for information about the functional

button operations.

Operation Performed

Press and hold POWER for 1 second to

turn the Meter on.

Press POWER again to turn the Meter off.

Press HOLD to enter the Hold mode in

any mode, appears and the Meter

beeps.

Press HOLD again to exit the Hold mode

to return to measurement mode, the

Meter beeps and disappears.

Press LIGHT to turn the display backlight

on.

The display backlight will be off

automatically after 30 seconds.

Button

POWER

HOLD

LIGHT

Press MENU to display the following

functions in sequence:

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