Uni-T UT512 Manual de Usario

Uni-T Equipo de medición UT512

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Introduction

Uni- rend Model UT512 insulation resistance testeT r

(hereafte "the Meter") is handheld instrumenr, a t

designed primarily make resis ance insula io to t / t n

resistance measurement.

Unpacking the Meter

The Meter includes the following items:

Table 1. Unpacking Inspection

Item

Description

English Operating Manual

One-plug t t es lead to one alligator

clip ( Black )

O ne plug es t t lead to one alligator

clip ( Green )

Two-plug test lead to one

alligator clip ( Red )

1.5V Battery (LR14 / R14)

Tool Box

USB Interface Cable

Software

Power adaptor (input voltage

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

DC14.5V, 600mA) (optional,

available at extra cost)

Qty

1 pc

8 pcs

1 pc

In the event you find any missing or damage, pleas e

contact your dealer immediately.

Safety Information

T his Me er compliest with EN 61010-1:2010 fety sa measurement

requirement:Pollution Degree 2, measurement

category CAT III 600V and Double Insulation.

CAT II (measurement category): Test and measuring

circuits connected directly to utilization points (socket outlets

and similar points) of the low-voltage MAINS installation.

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 pos e

hazard(s) to the user.

Warning alerts users to avoid electric shock.

Caution identifies conditions and actions that ma y

damage the Meter and affect accurate

measurement.

Danger

Use of instrument in a manual not specifed by th e

manufactuer may impair safety features/protection

prov ed by the e nt. d the f gid quipme Rea ollowin

sa rma care refety info tion full foy be us oring

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 figure s

away from the lead contacts. Keep your

figures behind the finger guards on the leads .

Do t u the th any p or co rno se Meter wi arts ve

removed.

Operating Caution identifies conditions that user

needs to t ake ex rat care during opera ting the Meter

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, 46.7 V

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

hazard.

Discharge all loading of circuit under test afte r

measuring high voltage.

When carrying out insulation measurement,

do not contact the circuit under test.

Caution

When performing resistance tests, remove all

power from the circuit to be measured and

discharge all the power.

Wh ing then icserv e Meter, u y se onl only the

test leads and power adaptor with the same

model number or identical electrical

specifications.

Do not use the Meter if the battery indicator

( ) a shows battery empty condition. Take

the battery out from the Meter if it is not use d

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.

So c th a m dft lo nd ild etergent s be u dhould se

to clean the surface of the Meter when

servicing. No abrasive and solvent should be

u d to p nt the su of the omse reve rface Meter fr

corrosion, damage and accident.

Dry the Meter before storing if it is wet.

Risk of electric shock

Grounding

Empty of Built-In Battery

Con ormsf to St of andards European Union

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 displa y

if there is no button press for 15 minutes. This is don e

to conserve battery powe The Meter comes out r. of

Sleep Mode whe button is pressed and hol n ON/OFF d

for 1 second.

Battery Indication

There is a battery indicator shown on the upper left corner

of the display. Please refer to Table 3 for detailed

explanation.

Battery Voltage

5.9V ~ 10.6V. It means the battery is

empty, Do not use the Meter as it

cannot

guarantee accuracy.

10.7V ~ 11.1V. It means the battery is

almost empty, replacing battery is

necessary. At this status, the Meter can

still output 500V and 1000V to measure,

the measured accuracy will not be

affected.

11.2V ~ 12.2V

12.2V or more

Table 3. Battery Indication

Battery

Indicator

The Meter Structure

Below Figure and 1 Table shows the Meter fron 4 t

structure and description

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 Meter's input terminals.

Make sure the Meter is turned off when

opening the battery compartment.

Figure 1. The Meter Front Structur e

G n kree Blac Red

Table 4. Meter Front Description

LCD

Arrow Button

Emergency Stop

Data Clear the Display Backlight Button

Arrow Button

On/Off Button

Compare Button

Insulation Resistance Button

DC ButtonVoltage Measurement

Timer Button.

AC ButtonVoltage Measurement

Test Button

USB Button

Data Store Button.

Data Recall Button

Arrow Button

LINE: High voltage input terminal

( Connected to two-plug red test lead )

High voltage line shielding input terminal

( Connected to two-plug red test lead )

GUARD: Grounding protection input terminal

( Connected to one-plug black test lead )

EA TH:R High resistance measurement input

terminal ( Connected to one-plug green

test lead )

Testing leads:

Two-plug te red st lead one alliga to tor lip c .

One-plug k tblac es leadt to one alliga ort clip.

One-plug green test lead to one alligator clip.

Below Figure 2 and Table 5 shows the Meter side

structure and description

Figure 2. The Meter Side Structure

Table ide De ip io 5. Meter S scr t n

1 Safety Shutter

2 Power adaptor Input Terminal

3 USB Port

Display

Table 6 and Figure 3 describe the display.

Figure 3. Display

Table 6. Display Description

Number

Meaning

Analogue bar graph

Risk of electric shock

Battery life indicator

Indicator for timer

Timer 1 symbol

Timer 2 symbo

Indicates selected pass/fail compare value

Indicator for power adaptor

The continuity buzzer is on

Indicator for data store full

Data store is on

Data recall is on

Indicator for polarization index

Step symbol

Compare result: Pass

Compare result: Fail

Indicator for DC voltage

Indicator for AC voltage

Indicates negative reading

Unit symbols

Indicator for clearing

Table 7. Key Description

Turn on or off the Meter. Press and

hold he t bu on ortt f 1 to t thesecond urn

Meter on. Press again to turn off the

Meter.

The Meter defaults at 500V range and

under continuous measurement of

insulation resistance when turned on.

Emergency stop button. Press this

button when the Meter crashes down

and cannot turn off the power.

Key Functions

ON/OFF

E-STOP

Short press to turn on or off the display

backlight

Long press to clear the stored data.

Press to store the current measurement

value. The maximum number of stored

reading is 18. When the stored readings

memory is full, the Meter shows FULL

and stop storing. Press and hold

CLEAR / to clear the stored value

in order to st t t tore he nex measuremen

CLEAR

SAVE

value.

LOAD Press once to recall the first stored

value.

Press again to exit Load feature.

Load feature can only be used when

there is no high voltage output.

When the insulation resistance

measurement has no testing voltage

output, press to select previous voltage

range.

Under load mode: press to recall the

previous stored value.

When the insulation resistance

measurement has no testing voltage

output, press to select next voltage

range.

Under load mode: press to recall the

next stored value.

When setting the timer for the

measurement of insulation resistanc e

or polarization index, press to

decrement the time. The maximu m

length of time is 15 minutes and 30

seconds, the Meter will automaticall y

carry out measurement.

When compare function is enabled for

insulation resistance measurement,

press to decrement a resistance

comparing value.

After polarization index measurement,

press to display polarization index,

TIME 2 and TIME 1 insulation

resistance values in sequence.

When setting the timer for the

measurement of insulation resistanc e

or polarization index, press to

increment the time. The maximum

length of time is 30 minutes and 30

sec tonds, he Meter will automatic yall

carry out measurement.

When compare function is enabled for

insulation resistance measurement,

press to increment a resistance

comparing value.

After polarization index measurement,

press to display t polariza ion index,

TIME 2 and TIME 1 insulation

resistance values in sequence.

Press once to start the data

transferring to the computer via USB ,

USB symbol shows on the display.

Press again to stop the data

transferring to the computer via USB ,

USB symbol disappears.

USB

Set a pass / fail limit for insulation tests.

The default value is 10M

Press to step through continuous,

timed and polarization index

measurements in sequence.

Press to turn on/off the output of

insulation resistance test voltage.

Press to initiate insulation resistance

measurement

Press to initiate DC voltage

measurement

Pres to initiate AC voltage

measurement

COMP

TIME

TEST

DCV

ACV

Measurement Operation

This section explains how to make measurements.

Press and hold to turn on the Meter, pressON/OFF

again to turn off the Mete r. The meter defaults at 500V

range and continuous measurement of insulation

resistance when turned on.

A. Measuring Voltage

Figure 4. Voltage Measurement

Red

Green

To avoid harm to you or damage to the Meter,

please do not attempt to measure voltages

higher than 600V or 600V rms, although

readings may be obtained.

Special care should be taken when measurin g

high voltage.

Operating Caution

To m sure v t , set t Meter as F re 4 ea ol age up he igu and

do the following:

Press or button to select DC voltage orDCV ACV

AC voltage measurement

CAT III (measurement category): Test and measuring

circuits connected to the distribution part of the building’s

low-voltage MAINS installation.

Equipment protected throughout by DOUBLE

INSULATION or REINFORECD INSULATION

Direct current

Alternating current

Caution

This operating manual is subject to change without notice.

*END*

Insert the red and green test leads into and EARTH

two terminals.LINE

When measuring DC voltage, if negative voltage is

present on the red test lead, "-" symbol will show on

the display.

When voltage measurement has been completed,

disconnect the connection between the testing

leads and the circuit under test and remove testing

leads away from the input terminals of the Meter.

Note

Black

Red

B. Measuring Insulation Resistance

Figure 5. Insulation Resistance Measurement

Green

Groud

Operating Cautio n

When performing insulation resistance tests,

remove all power from the circuit to be

measured and discharge all the power.

Operating the Meter must be very careful as it

outputs dangerous voltage during

measurement. Must make sure the tested object

is firmed clipped, hands are away from the

clips, then press TEST button to output high

voltage.

Do not short circuit the testing leads during

high voltages output or test insulation

resistance after high voltages output. This kind

of in correc erat op ting may ca se u sp andarking

fire, which damages the Meter and cause

personal injury.

Do not measure over 10 seconds when:

measuring resistance ＜2MΩ with use of 500V.

measuring resistance ＜5MΩ with use of 1000V.

measuring resistance ＜8MΩ with use of 1500V.

measuring resistance ＜10MΩ with use of 2500V.

To measure insulation resistance, set up the Meter as

Figure 5 and do the following:

Press button to select insulation resistanceIR

measurement.

When there is no testing voltage output, press

and button to select 500V, 1000V, 2500V

or 5000V voltage range.

W hen pe ingrf rmo in ulas tion resistance tests, remove

all power from the circuit to be measured and

discharge all the power.

Insert the red test lead into two terminals, the LINE

black one into and the green one into GUARD EARTH.

Connect the red and green alligator clip to the circui t

to be measured, negative voltage outputs from LINE

terminal.

Choose one of insulation resistance measurement

modes shown as below:

Press button to select continuousTIME

m , t r s timer c the LCD.ode he e i no i on on

Press and hold button for 1 second toTEST

begin and output insulation resistance test voltage,

TEST button lights up,

blinks on every 0.5

Press TEST button to turn off the voltage output,

when measurement is t .comple ed T TES

ts ofbu ontt ligh f, . The LCD shows disappears

the current insulation resistance measurement

value.

Press button to select timed mode, theTIME

LCD displays and symbols.TIME 1

Press and buttons to set the time (00:10~15:00).

Wit 1 m te, t time em t or em thin inu he incr en decr en

by every 5 seconds. Afterward, the time incremen t

or decrement by every 30 seconds.

T pre hen ss and hold TEST button for 2 sec toond

carry out timed measurement. TIME 1 and are

displayed and blinked on the LCD on every 0.5

seconds.

When the set time is reached, the test voltage

output will be turned off, and the measurement will

be automatically stopped. L di l The CD sp ays the

i lnsu at oni res stance readi ing.

Press button to select timed mode, the LCDTIME

displays and TIME 1 symbols.

Press and buttons to set the time (00:10~15:00).

Within 1 minute, the time increment or decrement

by every 5 seconds. Afterward, the time increment

or decrement by every 30 seconds.

Press TIME bu ontt again. TIME 2, PI and symbols

appear on the LCD.

Press and buttons to set the time (00:15~15:30).

Within 1 minute, the time increment or decrement

by every 10 seconds. After ard,w the time increment

or decrement by every 30 seconds.

Then press and hold TEST button for 2 toseconds

carry out the measurement.

TIME 1 and are displayed and blinked on the

LCD on every 0.5 seconds before set timeTIME 1

is reached.

TIME 2 and are displayed and blinked on the

LCD on every 0.5 seconds before set timeTIME 2

is reached.

When the two set time are reached, the test voltage

output will be turned off and the measurement will

be automatically stopped. The LCD displays the

polarization index reading.

Press to step through the polarization index,

TIME 2 TIME 2 and insulation resistance readings.

Calculation Tips:

PI = 3-minute ~ 10-minute resistance/30-second ~

1-minute resistance

Standard

4 or more

The best

4~2

Good

2.0~1.0

Warning

1.0 or less

Bad

Press button to select compare feature.COMP

COMP symbol displays on the LCD.

Press and buttons to set the compare value

You can choose the compare value from

10M , 20M , 30M , 40M , 50M , 60MΩΩΩΩΩΩ,

70M , 80M , 90M , 100M , 200M , 300MΩ Ω Ω Ω Ω Ω,

400M , Ω500M , Ω600M , Ω700M , Ω800M , Ω900MΩ

1G , 2G , 3G , 4G , 5G , 6G , 7G , 8GΩΩΩΩΩΩΩΩ,

9G , G , Ω10 Ω20 330G , ΩG , G , G , GΩ40 Ω50 Ω60 Ω,

70G , 80G , 90G , 100GΩ Ω Ω Ω

Press and hold TEST button for 2 seconds to carr y

out the measurement.

The symbol will display if the insulationNG

resistance value is smaller than compare value.

Otherwise symbol will be displayed. GOOD

Using Power Adaptor

Refer to Figure 6 for the use of power adaptor.

Figure 6. Using Power Adaptor

Open the side safey shutte r, then you will see ther e

is a power adaptor input terminal.

Make sure the Meter is power off and Insert the

UT512 power adaptor to the input terminal.

It is highly recommended to take out all the batteries

when you are using the power adaptor.

Make sure the Meter is power off when you

disconnect the UT512 power adaptor from the Meter.

It is highly recommended to use Uni-Trend supplied

UT512 power adaptor to avoid unnecessary danger.

Connecting USB Interface

See Figure 7 for USB interface connection.

Figure 7. USB Interface Connection

Install the included software, the installation guide

can be seen from the CD.

Open the side safety shutter, then you will see there

is a USB port.

Insert the included USB cable to the Meter's USB

port and the other end to the computer.

Maintenance

This section provides basic maintenance information

including battery replacement instruction.

Warning

Do not att ptem to pair or re service y r Metou er unless

you are qualified to do so and have the relevant

calibration, performance test, and service

information.

Turn the Meter to OFF when it is not in use.

Take out the battery when it is not using for a long

time.

Do no t use or ore t Meter a st he in place of hu idim ty,

high temperature, exp osl ive, inf ammabl le and stron g

magnetic field.

If the Meter is wet, dry it before use.

B. Replacing the Battery

Warning

To avoid electric shock, remove all the test leads

from the Meter when replacing the batteries.

Figure 8. Battery Replacement

Operating Caution

Do not mix to use old and new batteries.

Be careful the polarity is correct when installin g

batteries.

Do not use the Meter if the battery indicator

( ) shows.

Do you carry out measurement during the

battery compartment is open.

Follow Figure 8 and proceed as follows to replace the

battery:

Turn the Meter to OFF and remove all connection s

from the terminals.

Remove the screw from the battery compartment,

and separate the battery compartment from the case

bottom.

Replace with 8pcs of new 1.5V (LR14) batteries.

Rejoin the case bottom and battery compartment,

and reinstall the screw.

Specifications

Safety and Compliances

Certification

Compliances IEC 61010 CAT.III 600V overvoltage and double insulation standard

General Specifications

Display (LCD)

Operating Temperature

Storage Temperature

Relative Humidity

Battery Type

Dimensions (HxW xL)

Weight

Digital: 9999 counts Analog bar graph.

-10 ~40 (14 ~104 )

-20 ~60 (-4 ~152 )

85% @ -10 ~40 below;

90% @ -20 ~60 :

8pcs of 1.5V (LR14) batteries or power adaptor (input voltage 230 V, ,50/60Hz

50mA, input DC14.5V, 600mA).

Power adaptor is optional at extra cost.

202 x 155 x 94 mm

Approx 2kg (including battery)

Overloading

Battery Indicator

Icon Display

Current Consumption

Display on insulation resistance rangeOL

Display

Equips with function and battery indicator icons .

Maximum: around 600mA

Average: around 20mA

Display Backlight

Computer connection

Data Logging and Recall

Autorange

Warning

Test Voltage

COMP Measurement

PI Measurement

TIME

Bright backlight for clear readings in poorly lighted areas.

Via USB interface.

The Meter automatically selects best range

and red light will on.

Automatically source the voltage.

Use the Compare function to set a pass/fail compare level for the insulation

measurements.

Polarization Index is the ratio of insulation resistance. Preset the timer for two

points and the Meter will carry out the measurement automatically.

To carry out measurement by setting a specified time within 15 minutes.

Measurement Range

Resolution

Accuracy

DC Voltage

30 ~ 600V

Accuracy Specifications

Accuracy: ([% of reading] [number of least significant digits), guarantee for yea + 1 r.

Operating temperature: 18 ~28

Relative humidity: 45~75%RH

A. Voltage Measurement

AC Voltage

30V~600V (50/60Hz)

(2%+5) <100V: (2%+8)

100V: (2%+5)

Output Voltage

Display Range

Open Circuit Voltage

Test Current

Short Circuit

Accuracy

B. Insulation Resistance Measurement

500V

0.5M ~5.0GΩ Ω

DC 500V + 20%, -0%

1mA~1.2mA @500k Ω

1000V

2M ~10.0G

DC1000V + 20%, -0%

1mA~1.2mA @ 1M

1500V

5M ~20.0G

DC 2500V + 20%, -0%

1mA~1.2mA @ 1.5M

2500V

10M ~100G

DC2500V + 20%, -0%

1mA~1.2mA @ 2.5M

Less than 2.0mA

100k ~ 100M (3%+5):

100M ~ 10G (5%+5):

10G ~ 100G (10%+5):

At any output voltage, when the tested resistance is less than 10M , the testing time cannot exceed 10

seconds continuously.

Operating Caution

A. General Service

Periodically wipe the case with a damp cloth and

mild detergent. Do not use abrasives or solvents.

To c tlean he terminals with cotton bar with deter t,gen

as dirt or moisture in the terminals can affect

readings.

seconds.

P/N:110401105604X DATE:2018.06.26 REV.7

Especificaciones del producto

Marca:	Uni-T
Categoría:	Equipo de medición
Modelo:	UT512

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