Unit UT512 Manuel utilisateur

Model UT512

OPERATING MANUAL

Title Page

Model UT512: OPERATING MANUAL

Table of Contents

Introduction

Unpacking the Meter

Safety Information

International Electrical Symbols

Battery Saver (Sleep Mode)

Battery Indication

The Meter Structure

Display

Key Functions

Measurement Operation

A. Measuring Voltages

B. Measuring Insulation Resistance

a) Continuous Measurement

b) Timed Measurement

c) Polarization Index (PI) Measurement

d) Compare Function

The Use of Power Adaptor

Model UT512: OPERATING MANUAL

Title Page

USB Interface

Maintenance

A. General Service

B. Replacing the Battery

Specifications

Safety and Compliances

Physical Specifications

General Specifications

Feature Summary

Detailed Accuracy Specifications

A. Voltage Measurement

B. Insulation Resistance Measurement

Model UT512: OPERATING MANUAL

Table Title Page

1. Unpacking Inspection

2. International Electrical Symbols

3. Battery Indication

4. Meter Front Description

5. Meter Side Description

6. Display Description

7. Key Description

List of Tables

Model UT512: OPERATING MANUAL

Figure Title Page

1. The Meter Front Structure

2. The Meter Side Structure

3. Display

4. Voltages Measurement

5. Insulation Resistance Measurement

6. The Use of Power Adaptor

7. USB Interface Connection

8. Battery Replacement

List of Figures

Model UT512: OPERATING MANUAL

Introduction

Uni-Trend Model UT512 insulation resistance tester

(hereafter, ìthe Meterî) is a handheld instrument

designed primarily to make resistance/ insulation

resistance measurement.

Unpacking the Meter

The Meter includes the following items:

Table 1. Unpacking Inspection

Item

Description

English Operating Manual

One plug test lead to one alligator

clip (Black colour)

One plug test lead to one alligator

clip (Green colour)

Two plugs test lead to one

alligator clip (Red colour)

1.5V Battery (LR14 / R14)

Tool Box

USB Interface Cable

Software

Power adaptor (input voltage

230V, 50/60Hz, 50mA, output

DC14.5V, 600mA) (optionally,

available at extra cost)

Qty

1 piece

8 pieces

1 piece

In the event you find any missing or damage, please

contact your dealer immediately.

Model UT512: OPERATING MANUAL

Safety Information

This Meter complies with the standards IEC61010 safety

measurement requirement: in pollution degree 2,

overvoltage category (CAT. III 600V) and double

insulation.

CAT II: Local level, appliance, PORTABLE EQUIPMENT

etc., with smaller transient voltage overvoltages than

CAT. III

Use the Meter only as specified in this operating manual,

otherwise the protection provided by the Meter may be

impaired.

Danger identifies conditions and actions that pose

hazard(s) to the user.

Warning identifies avoiding electric shock.

Caution identifies conditions and actions that may

damage the Meter and carrying out accurate

measurement.

Danger

Use of instrument in a manual not specifed by the

manufactuer may impair safety features/protection

provided by the equipment. Read the following

safety information carefully before using or

servicing the instrument.

Do not apply more than 600V.

Do not use the Meter around explosive gas,

vapor or dust.

Do not use the Meter in a wet environment.

When using the test leads, keep your figures

away from the lead contacts. Keep your

figures behind the finger guards on the leads.

Do not use the Meter with any parts or cover

removed.

International electrical symbols used on the Meter and

in this Operating Manual are explained on page 8.

Operating Caution identifies conditions that user

needs to take extra care during operating the Meter

Model UT512: OPERATING MANUAL

Warning

Do not use the Meter if it is damaged or metal

part is exposed. Look for cracks or missing

plastic.

Be careful when working above 33V rms, 46.7V

ac rms or 70V DC. Such voltages pose a shock

hazard.

Discharge all loading of circuit under test after

measuring high voltage.

Do not change battery when the Meter is in

wet environment.

Place test leads in proper input terminals.

Make sure all the test leads are firmly

connected to the Meterís input terminals.

Make sure the Meter is turned off when

opening the battery compartment.

Caution

When performing resistance tests, remove all

power from the circuit to be measured and

discharge all the power.

When servicing the Meter, use only the same

model number or identical electrical

specifications of test leads and power adaptor.

Do not use the Meter if the battery indicator

( ) shows a battery empty condition. Take

the battery out from the Meter if it is not used

for a long time.

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.

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.

Dry the Meter before storing if it is wet.

When carrying out insulation measurement,

do not contact the circuit under test.

Risk of electric shock

Equipment protected by double or

reinforced insulation.

DC Measurement

AC Measurement

Grounding

See Manual

Empty of Built-In Battery

Conforms to Standards of European Union

Model UT512: OPERATING MANUAL

International Electrical Symbols

International symbols on the Meter and in this manual

are explained in Table 2.

Table 2. International Electrical Symbols

Battery Saver (Sleep Mode)

The Meter enters the Sleep Mode and blanks the display

if there is no button press for 15 minutes. This is done

to conserve battery power. The Meter comes out of

Sleep Mode when ON/OFF button is pressed and hold

for 1 second.

Battery Indication

There is a battery indicator shows on the display upper

left hand corner. Below Table 3 is the explanation:

Battery Voltage

5.9V ~ 10.6V. It means the battery is

empty, donít use the Meter as it cannot

guarantee accuracy.

10.7V ~ 11.1V. It means the battery is

nearly empty, replacing battery is

necessary. At this status, the Meter can

still do 500V and 1000V output

measurement, accuracy will not be

affected.

11.2V ~ 12.2V

12.2V or more

Table 3. Battery Indication

Battery

Indicator

Model UT512: OPERATING MANUAL

The Meter Structure

Below Figure 1 and Table 4 shows the Meter front

structure and description

Figure 1. The Meter Front Structure

Green Black Red

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