Unit UT61A Bedienungsanleitung

Table of Contents

Title Page

Overview

Unpacking Inspection

Safety Information

Rules For Safe Operation

International Electrical Symbols

The Meter Structure

Rotary Switch

Functional Buttons

Display Symbols

Measurement Operation

A.DC/AC Voltage Measurement

B.DC/AC Current Measurement

C.Measuring Resistance

D.Testing for Continuity

E.Testing Diodes

F.Capacitance Measurement

G.Frequency Measurement

H.Temperature Measurement

Model UT61A/61B/61C/61D/61E: OPERATING MANUAL

Title Page

I.Transistor hFE Measurement

J.EF Function

Operation of Hold Mode

RANGE Button

MAX MIN Button

PEAK Button

Data Outputting

The Use of Relative Value Mode

The BLUE Button

Turning on the Display Backlight

Sleep Mode

General Specifications

Accuracy Specifications

A.DC Voltage

B.AC Voltage

C.DC Current

D.AC Current

E.Resistance

Model UT61A/61B/61C/61D/61E: OPERATING MANUAL

Title Page

F.Capacitance

G.Frequency

H.Diode Test

I.Continuity Test

J.Temperature

K.Transistor hFE

Maintenance

A.General Service

B.Replacing the Battery

C.Replacing the Fuses

USB and RS232C Serial Port

Model UT61A/61B/61C/61D/61E: 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.

Warning

Model UT61A/61B/61C/61D/61E: OPERATING MANUAL

Except where noted, the descriptions and instructions in this Operating Manual apply

to all Model UT61A/UT61B/UT61C/UT61D/UT61E.

Unpacking Inspection

Open the package case and take out the Meter. Check the following items carefully

to see any missing or damaged part:

Description

Operating Manual

Test Lead

Point Contact K type Temperature Probe (UT61B and UT61C only)

UT61 Multi-Purpose Socket

9V Battery (NEDA1604, 6F22 or 0006P) (installed inside the Meter)

RS232C Interface Cable(except UT61A)

USB Interface Cable (Optional at extra cost) (except UT61A)

Installation Guide & Computer Interface Software (CD-ROM) (Come

along with the RS232C or USB Interface Cable) (except UT61A)

Item

Qty

1 piece

1 pair

1 piece

Model UT61A/61B/61C/61D/61E: OPERATING MANUAL

In the event you find any missing or damage, please contact your dealer immediately.

Safety Information

This Meter complies with the standards IEC61010: in pollution degree 2, overvoltage

category (CAT. III 1000V, CAT. IV 600V) 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 etc.

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 page9.

Model UT61A/61B/61C/61D/61E: 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:

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.

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.

Model UT61A/61B/61C/61D/61E: OPERATING MANUAL

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 diodes.

l Before measuring current, check the Meterís fuses and turn off the current

to be tested before connecting the Meter to the circuit. After connecting

the circuit reliably, turn the current to be tested on.

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.

Model UT61A/61B/61C/61D/61E: OPERATING MANUAL

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.

International Electrical Symbols

AC or DC

Double Insulated

Warning. Refer to the Operating

Manual

Grounding

Deficiency of Built-In Battery

Conforms to Standards of

European Union

Model UT61A/61B/61C/61D/61E: OPERATING MANUAL

The Meter Structure (see figure 1)

LCD Display

Functional Buttons

Blue button

Rotary Switch

Input Terminal:

figure 1

Model UT61A/61B/61C/61D/61E: OPERATING MANUAL

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