Megger PAT120 Manuale utente

PAT100 Series

Portable Appliance Tester

User Guide

WWW.MEGGER.COM

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Contents

Unpacking the carton 3

Safety warnings 4

Symbols used on the instrument 5

Symbols used on the connection panel 6

Instrument layout 7

PAT120 and display information 7

PAT150 and display information 7

Measurement symbols 8

Instrument buttons 9

User guide INSTRUCTION symbols 9

Carry strap ﬁtting and removal 10

Switching ON / OFF 11

Class I test (PAT120, 150) using substitute leakage @ 40 V ac 12

Class I test (PAT120, 150) using mains leakage @ 230 V ac 14

Class II test (PAT120, 150) Using Substitute Leakage @ 40 V ac 15

Class II test (PAT120, 150) Using Mains Voltage Leakage @ 230 V ac 16

Power cord test (PAT120, 150) 17

Extension lead test (PAT120, 150) 18

Portable RCD test (PAT150) 19

Fixed equipment testing 20

Fail handling 21

Quick test (PAT150 only) 22

Quick test examples 23

SELV measurement within quick test (QT) 25

To exit quick test (QT) mode 25

SETUP (PAT120, PAT150) 26

Changing PASS limits and test times 26

Continuity lead null 27

RCD conﬁguration 28

Factory reset to default settings 29

Region selection (only available on ﬁrst power-on from new or after

factory reset) 30

International model variations 31

Battery and fuse replacement (PAT120, 150) 32

Battery replacement 32

Fuse replacement 33

Preventive maintenance 33

Speciﬁcation 34

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Thank you for purchasing the Megger portable appliance tester.

For your own safety and to get the maximum beneﬁt from your instrument, please ensure that you read and understand the safety warnings and instructions before attempting to use the

instrument.

These instruments are designed and manufactured by:

Megger Instruments Limited

Archcliffe Road

Dover Kent

CT17 9EN

England

Megger Instruments Limited reserves the right to change the speciﬁcation of these instruments at any time without prior notice.

Unpacking the carton

Unpack the carton contents carefully. There are important documents that you should read and keep for future reference.

Please complete the pre-paid warranty card and return it to Megger Limited as soon as possible to help us reduce any delays in supporting you should you need assistance.

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Safety Warnings



The following Safety Warnings and Precautions must be read and understood before the instrument is used. They must be observed during use.



■ Only use test leads and accessories supplied or approved by Megger Instruments Limited

■ At any time the Gsymbol or Fsymbol is displayed, the user guide and warnings documentation must be consulted to identify the nature of the hazard and any actions

necessary to avoid the hazard

■ Do not use the instrument if there are any signs of damage

■ This instrument meets the EMC requirements of Class A applications. Not for use in domestic installations

■ All test leads, probes and clips must be in good order, clean and with no broken or cracked insulation

■ Probes and clips should be held behind the ﬁnger guard

■ Test leads not used during a measurement should be disconnected from the Appliance tester

■ During testing, ensure no hazard will exist as a result of normal running or under fault conditions

■ During testing the unit under test (appliance) should not be touched, other than using the appropriate accessories, as faulty appliances can present a shock hazard

■ Do not touch the exposed parts of test leads during tests as hazardous voltages may be present

■ Do not intentionally connect test leads to live systems or hazardous voltages

■ Do not touch the IEC extension lead socket pins especially during a test, as hazardous voltages may be present due to a potentially faulty appliance

■ Do not touch the exposed earth pins of the 230 V test socket during a test, as voltages may be present due to a potentially faulty appliance

■ Serviceable fuses should only be replaced with those that are suitably rated

■ Replacement fuses must be of the correct rating and type. Refer to page 33

■ If this instrument is used in a manner not speciﬁed in the supplied documentation, the protection provided by the instrument may be compromised



PAT150

■ For safety, only connect the PAT to a supply that is properly earthed. If in doubt, the supply should be checked by a qualiﬁed electrician

■ Only perform a mains powered leakage test after the Earth bond and insulation tests have been completed, as this test operates at mains voltage

■ During mains powered leakage tests the appliance under test will operate. Make sure the appliance is safely secured to ensure no damage or danger is possible

■ A yearly calibration is recommended with interim checks on measurement accuracy to ensure no equipment can be left in a hazardous live condition through incorrect readings

■ Only use a Megger approved PAT100 charger. Other chargers may present a ﬁre risk

■ Do not connect the battery charger to the PAT150R whilst running a test

■ During testing make sure that the shutter covers the battery charger port. There is a risk of electrocution from exposed terminals. Do not touch any exposed terminals or probe tips

during test

■ Always remove the mains plug test lead from the mains supply AND the instrument when not in use

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Product Safety Category

CATII 300 V - MEASUREMENT CATEGORY II Equipment connected between the electrical outlets and the user’s equipment.

G230 V ac powered Leakage testing: Connecting the PAT150 to a 230 V ac supply will automatically switch the leakage tests from a 40 V ac test to a mains powered 230 V ac test. Any

leakage testing performed with 230 V ac connected will operate the equipment under test. Ensure the equipment under test is properly secured and in a safe condition prior to running a

230 V ac leakage test

WEEE DIRECTIVE

The crossed out wheeled bin symbol placed on Megger products is a reminder not to dispose of the product at the end of its life with general waste.

Megger is registered in the UK as a Producer of Electrical and Electronic Equipment. The Registration No is WEE/HE0146QT

For further information about disposal of the product consult your local Megger company or distributer or visit your local Megger website.

Symbols used on the instrument

G Caution: refer to accompanying notes.

F Danger: Mains voltage present during testing

c Equipment complies with relevant EU Directives

Equipment complies with ‘C tick’ requirements

Caution: Earth pins of the 230 V test socket will become hazardous if test

lead P1 is in contact with hazardous voltages during continuity test.

f Fuse failure

This equipment should be disposed of as electronic waste

Battery type ﬁtted

Do not connect to 230 V supply

Caution: Earth pin of the 230 V test socket will become hazardous if test

lead P1 is in contact with hazardous voltages during continuity test

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Symbols used on the connection panel

PAT120 connector panel PAT150 connector panel

GDo NOT connect P1 and P3 sockets to hazardous live voltages

Continuity (Bond),

Insulation and Touch

leakage probe

connection

IEC power cord

and extension lead

adaptor socket.

Mains I/P

Used for testing

that require

mains power to

be applied to the

equipment under

test, such as:

- PRCD testing

- Mains powered

earth leakage

tests

Continuity (Bond),

Insulation and Touch

leakage probe connection

Used with P1 for testing

Separated Extra Low

Voltages and Mains

voltages

IEC power cord and

extension lead adaptor

socket.

Do NOT connect to

230 Vac

Battery charging

socket

GDo NOT connect P1, P2 and P3 sockets to hazardous live voltages

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Instrument Layout PAT120 Instrument Layout PAT150

Display information PAT120 Display information PAT150

Test results

Test

information

Information/

Warnings

Overall PASS/FAIL

Test

information

Information/

Warnings

Overall PASS/FAIL

Test results

Neck strap

slot

Test groups

Power ON – Hold for >0.5s Backlight

Main test

socket

Power ON –

Hold for >0.5s

BacklightQuick test Setup

Neck strap

slot

Test groups

Main test

socket

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Measurement (display) symbols

PAT120 & PAT150 PAT150 only

Continuity of the protective earth

conductor Test in progress

Insulation resistance between the

Live/Neutral conductors and earth Measurement locked ON

Alternative method:- 40 V

ac leakage test for protective

conductor current and touch

current. Battery powered test

GNotice: Refer to user guide

WResistance in ohms

(English language models)

Alternative method:- 40 V ac

leakage test for for protective

conductor current. Battery

powered test

MWInsulation resistance in Meg Ohms

(ohms x 1x106)

mA Leakage current in milliamps

(English language models)

Alternative method:- 40 V ac

leakage test for for touch current.

Battery powered test

Cable polarity correct

Power lead or Extension lead

polarity test Live to Neutral cross polarity

Test probe P1 to be connected Live to Neutral short circuit

detected

Test or overall test group passed Live to Earth short circuit

detected

Test or overall test group failed Open circuit detected

fFuse failed General warning - Appliance open

circuit or not switched on

NOTE: The PAT100 instruments perform various pre-checks prior to testing to ensure the

asset is not short-circuit and is switched on

RCD Residual current device test mode Test Probe P2 to be connected

0˚

180˚

0º - Positive edge test

current

180 º - Negative edge test

current

TInstrument hot, allow to cool

1xI∆N

5xI∆N

1 x I∆n = the rated operating

current of the RCD

5 x I∆n = 5 time the rated

operating current of the RCD

zLead null active

FWarning: Hazardous voltages

present

V~ Volts AC P1 test lead null set

sSeconds OExtension lead adaptor lead null set

ms Thousandths of a second

Earth leakage current measured

using the differential/residual

method

RCD – Press TEST or RESET LN Phase to Neutral voltage

Touch current measured with P1

test probe using the direct method NE Neutral to Earth Voltage

LE Phase to Earth voltage Separated Extra-Low Voltage

measurement

Volts AC (measurement function)

(English language models) Fixed

installation equipment continuity

test

Repeat continuity test Fixed installation equipment

continuity test

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Instrument Buttons User guide INSTRUCTION symbols

Power button - Hold down for 0.5 second to switch on,

Hold down for 2 seconds to switch off

Abort button - press to stop test or exit a setup mode

Class I button

Class II button

Extension lead button

Quick test button

RCD test button

Setup button – allows access to PASS limits, test times and lead

null option

Backlight button

Press the button

Press and hold for greater than 0.5 seconds

Connect the equipment to be tested to the

instrument

Connect the Instrument to the mains supply

using the mains plug test lead (for mains

powered leakage and RCD testing)

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Carry strap ﬁtting and removal

Fitting the carry strap:

Removing carry strap:

Connect the P1 test lead to socket P1 on the

Pat100 and the probe to exposed metalwork

Ensure the probe is NOT connected to a 230V

source.

Connect the P1 test lead to different conductive

points on the equipment under test during the

measurement

Connect both the P1 and P2 test leads to the

circuit to be measured

Ensure equipment under test is switched ON

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