SEAWARD Electronic PAC3760 plus II User manual

PAC3760 plus II Operating Instructions
1
PAC3760 plus II
Operating Instructions
Represented in Australia by:
EMONA Instruments Pty Ltd
78 Parramatta Rd
Camperdo n NSW 2050
Tel: [phone]
.emona.com.au, .protag.com.au
[email protected]m.au
Represented in Ne Zealand by:
Electrotest Ltd
12A Te Kea Place
Albany
Auckland
Tel: [phone]
.electrotest.co.nz
Part Number 372A567 Revision 1
© 2010 Sea ard Electronic Ltd

PAC3760 plus II Operating Instructions
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Limited Warranty & Limitation of Liability
SEAWARD Electronic Limited guarantees this
product to be free from defects in material and
orkmanship under normal use and service for a
period of 1 year. The period of arranty ill be
effective at the day of delivery.
(c) Copyright 2010
All rights reserved. Nothing from this edition may be
multiplied, or made public in any form or manner,
either electronically, mechanically, by photocopying,
recording, or in any manner, ithout prior ritten
consent from SEAWARD Electronic Limited. This
also applies to accompanying dra ings and
diagrams.
Due to a policy of continuous development
SEAWARD Electronic Limited reserves the right to
alter the equipment specification and description
outlined in this publication ithout prior notice and
no part of this publication shall be deemed to be
part of any contract for the equipment unless
specifically referred to as an inclusion ithin such
contract.

PAC3760 plus II Operating Instructions
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PAC3760 plus II Operating Instructions
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DECLARA ION OF CONFORMI Y
As the manufacturer of the apparatus listed, declare
under our sole responsibility that the product:
PAC3760 plus II
To hich this declaration relates are in conformity
ith the relevant clauses of the follo ing standard:
IEC 61010-1:2001
Safety requirements for electrical equipment for
measurement, control, and laboratory use – Part
1: General requirements.
IEC 61326:2005
Electrical equipment for measurement, control
and laboratory user-EMC Requirements
Performance: The instrument operates ithin
specification hen used under the conditions in the
above standards EMC and Safety Standards.
The product identified above conforms to the
requirements of Council Directive 89/336/EEC and
73/23 EEC.
Sea ard Electronic Ltd is registered under BS EN
ISO9001:2000 Certificate No: Q05356.

PAC3760 plus II Operating Instructions
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Contents
1 Important Information ...................................... 6
2 Introduction ...................................................... 8
3 Performing Tests.............................................. 9
3.1 Testing a Class I Appliance .............................................. 9
3.2 Testing a Class I Appliance ith Leakage....................... 11
3.3 Testing a Class II Appliance............................................ 13
3.4 Testing a Class II Appliance ith Leakage...................... 14
3.5 Testing a mains cord ...................................................... 16
3.6 Testing an extension lead............................................... 17
3.7a Test an EPOD (Po erboard) ......................................... 17
3.7b Test an EPOD/Extension Lead ith MOV and/or RCDs 18
3.8 Testing 3-Phase equipment............................................ 20
3.9 Testing RCD Operating Time.......................................... 20
4 Troubleshooting ............................................. 23
5 Specification................................................... 24
6 Maintenance................................................... 25
7 Battery Check ................................................ 26
7.1 Battery Replacement ................................................. 26
8 Fuse................................................................ 27
8.1 Fuse Replacement..................................................... 27
9 Service and Calibration .................................. 28

PAC3760 plus II Operating Instructions
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1 Important Information
These operating instructions are intended for the
use of adequately trained personnel.
The follo ing symbols are used in these operating
instructions and on the PAC3760 plus II.
Caution, risk of electric shock.
Indicates instructions must be followed
to avoid danger to persons.
Caution, risk of danger. he operating
instructions must be adhered to in order
to avoid danger.
Caution, risk of electric shock.
Always ensure that the equipment under
test is disconnected from any supply
before connecting to the PAC3760 plus II.
It is the responsibility of the user to ensure that the
operation of the unit is correct and that the accuracy
of the measurements are ithin specification.
Before use, ensure unit is clean and dry; visually
inspect all leads, connectors, and case. Any
damage or ear must be rectified prior to use.
Standard Accessories
Part Number
Carry Case 71G082
Mains Supply Test lead 44B165
Black Continuity/Earth Test
Lead 1m
161A024
Australian IEC mains cord 0.5m 325A005
Optional Accessories
Part Number
Leakage test 3-Phase Adaptor 372A950

PAC3760 plus II Operating Instructions
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Figure 1. PAC3760 plus II Front Vie
Figure 2. PAC3760 plus II End Vie

PAC3760 plus II Operating Instructions
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2 Introduction
The PAC3760 plus II is a hand held battery po ered
unit suitable for carrying out electrical safety checks
on:
•Class I appliances
•Class II appliances
•IEC mains leads
•Extension leads
•10mA portable RCD
•30mA portable RCD
•3 Phase appliances hen used ith a 3-
Phase Adaptor
Overview
With reference to Figures 1 and 2.
1. The LCD
2. Class I Test / Cord Sequence Button
3. Class II Test Sequence Button
4. Leakage Test Sequence Button
5. 10mA portable RCD Test Button
6. 30mA portable RCD Test Button
7. 3-Phase Test Sequence Button
8. Test/Mains outlet socket
9. Mains inlet socket
10. IEC Test Connection
11. Earth Continuity Test Terminal
User Interface
The LCD display sho s test progress, results for
individual tests and the overall test result for an
appliance or mains cord.
Measurements displayed next to the R
PE
icon
indicate the resistance of the protective earth
conductor.
Measurements displayed next to the R
ISO
icon
indicate the resistance measured by the insulation
test.

PAC3760 plus II Operating Instructions
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Measurements displayed next to the I
LEAK
icon
indicate the leakage current measured hile the unit
is po ered from a mains supply.
Tests are initiated using the six push buttons.
Po er ON/OFF = press and hold the Class I and
Class II test buttons simultaneously, PAC3760 plus
II ill po er on/off hen buttons are released.
Note: he unit will automatically switch OFF
after approximately 3 minutes if no keys
are pressed.
3 Performing ests
Press keys Class I and Class II test buttons together
to s itch on the unit. When the unit is ready the
display ill be as sho n belo .
3.1 esting a Class I Appliance
Visually inspect the appliance as per requirements
of AS/NZS 3760:2010. If the appliance passes a
visual inspection proceed ith the electrical tests.
Plug the earth test lead into the Earth Continuity test
terminal on the PAC3760 plus II end panel.
Plug the appliance into the PAC3760 plus II front
panel test socket.
Connect the earth test lead to an exposed metal
part on the appliance.

PAC3760 plus II Operating Instructions
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If the Appliance under test has an ON/OFF s itch,
make sure it is in the ON position.
Press the Class I test button to start a Class I test
sequence.
The PAC3760 plus II ill no test the continuity of
the protective earth.
If the measured value is greater than the 1 ohm
pass/fail threshold, the measured value is displayed
and the unit indicates a fail result as sho n belo .
If the measured value is less than or equal to the 1
ohm pass/fail threshold, the measured value is
displayed and the unit indicates a pass result, as
sho n belo .
If the Earth Continuity test has passed then the unit
ill proceed ith an Insulation test.
Note: he power switch on the appliance under
test must be in the ON position to perform
an insulation test. If no appliance is

PAC3760 plus II Operating Instructions
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detected the PAC3760 plus II will display
LO LOAD.
If the LO LOAd enunciator is displayed, the load
presented by the appliance may be too small for the
PAC3760 plus II to detect. In this case, press the
Class I test button to continue.
If the Insulation test measures belo the 1Mohm
pass/fail threshold, the measured value is displayed
and the unit indicates a fail.
If the measured value is greater than or equal to the
1 Mohm pass/fail threshold, the measured value is
displayed and the unit indicates a pass result.
3.2 esting a Class I Appliance with Leakage
Visually inspect the appliance as per requirements
of AS/NZS 3760:2010. If the appliance passes a
visual inspection proceed ith the electrical tests.
Plug the mains lead into the PAC3760 plus II and a
mains supply socket.
When plugging the mains lead into the
PAC3760 plus II ensure that the polarity
orientation of the connector is correct. DO
NO FORCE HE PLUG IN O HE
CONNEC OR, doing so may damage the
PAC3760 plus II.
Plug the earth test lead into the Earth Continuity test
terminal on the PAC3760 plus II end panel.
Plug the appliance into the PAC3760 plus II front
panel test socket.
Connect the earth test probe to an exposed metal
part on the appliance.
If the Appliance under test has an ON/OFF s itch,
make sure it is in the ON position.
Press and hold the Leakage button and then the
Class I test button.

PAC3760 plus II Operating Instructions
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The PAC3760 plus II ill no test the continuity of
the protective earth.
If the measured value is greater than the 1 ohm
pass/fail threshold, the measured value is displayed
and the unit indicates a fail.
If the measured value is less than or equal to the 1
ohm pass/fail threshold, the measured value is
displayed and the unit indicates a pass result.
The unit ill proceed ith a Leakage test.
Note: he power switch on the appliance under
test must be in the ON position to perform
a leakage test. If no appliance is detected
the PAC3760 plus will display LO LOAD.
The ILEAK icon ill flash, press the Leakage button
to start a Leakage test.
The mains supply status is checked and the status
is indicated using the LN, LE and NE enunciators of
the LCD.
LN LE NE Mains status
ON ON OFF Correct
Flash Flash OFF No mains
OFF Flash Flash Earth fault
OFF Flash Flash Live/neutral reversed
If the LO LOAd enunciator is displayed, the load
presented by the appliance may be too small for the
PAC3760 plus II to detect. In this case, press the
Leakage button to continue.
Note: If the High Load enunciator is displayed,
the load presented by the appliance may be
too great for the PAC3760 plus II and users
should carry out an insulation test.
If the Leakage current is greater than 5mA a cross is
placed next to the I LEAK enunciator.

PAC3760 plus II Operating Instructions
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The FAIL enunciator is illuminated.
If the Leakage current is less than or equal to 5mA a
tick is placed next to the I LEAK enunciator.
The PASS enunciator is illuminated.
3.3 esting a Class II Appliance
Visually inspect the appliance as per requirements
of AS/NZS 3760:2010. If the appliance passes a
visual inspection proceed ith the electrical tests.
Plug the black continuity test lead into the Earth
Continuity test terminal on the PAC3760 plus II end
panel.
Plug the appliance into the PAC3760 plus II front
panel test socket.
Connect the black continuity test lead to an
exposed metal part on the appliance.
If the Appliance under test has an ON/OFF s itch,
make sure it is in the ON position.
Press the Class II test button to start a Class II test
sequence.
Note: he power switch on the appliance under
test must be in the ON position to perform
an insulation test. If no appliance is
detected the PAC3760 plus II will display
LO LOAD.
If the LO LOAd enunciator remains on the display,
the load presented by the appliance may be too

PAC3760 plus II Operating Instructions
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small for the PAC3760 plus II to detect. In this case,
press the Class II test button to continue.
The unit ill no perform an Insulation test.
If the Insulation Resistance is less than 1Mohm a
cross is placed next to the R ISO enunciator.
The FAIL enunciator is illuminated.
If the Insulation Resistance is greater than or equal
to 1Mohm a tick is placed next to the R ISO
enunciator.
The PASS enunciator is illuminated.
3.4 esting a Class II Appliance with Leakage
Visually inspect the appliance as per requirements
of AS/NZS 3760:2010. If the appliance passes a
visual inspection proceed ith the electrical tests.
Plug the mains lead into the PAC3760 plus II and a
mains supply socket.
When plugging the mains lead into the
PAC3760 plus II ensure that the polarity
orientation of the connector is correct. DO
NO FORCE HE PLUG IN O HE
CONNEC OR, doing so may damage the
PAC3760 plus II.
Plug the black continuity test lead into the Earth
Continuity test terminal on the PAC3760 plus II end
panel.

PAC3760 plus II Operating Instructions
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Plug the appliance into the PAC3760 plus II front
panel test socket.
Connect the black continuity test lead to an
exposed metal part on the appliance.
If the Appliance under test has an ON/OFF s itch,
make sure it is in the ON position.
Press and hold the Leakage button and then the
Class II test button to perform the Class II test
sequence including a Leakage test.
Note: he power switch on the appliance under
test must be in the ON position to perform
a leakage test. If no appliance is detected
the PAC3760 plus II will display LO LOAD.
The ILEAK icon ill flash, press the Leakage button
to start a Leakage test.
The mains supply status is checked and the status
is indicated using the LN, LE and NE enunciators of
the LCD.
LN LE NE Mains status
ON ON OFF Correct
Flash Flash OFF No mains
OFF Flash Flash Earth fault
OFF Flash Flash Live/neutral reversed
If the LO LOAd enunciator is displayed, the load
presented by the appliance may be too small for the
PAC3760 plus II to detect. In this case, press the
Leakage button to continue.
Note: If the High Load enunciator is displayed,
the load presented by the appliance may be
too great for the PAC3760 plus and the
user should carry out an Insulation test.
If the Leakage current is greater than 1mA a cross is
placed next to the I LEAK enunciator.
The FAIL enunciator is illuminated.

PAC3760 plus II Operating Instructions
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If the Leakage current is less than or equal to 1mA a
tick is placed next to the I LEAK enunciator.
The PASS enunciator is illuminated.
3.5 esting a mains cord
Visually inspect the appliance as per requirements
of AS/NZS 3760:2010. If the cord passes a visual
inspection proceed ith the electrical tests.
Plug the mains cord under test into the IEC socket
and the front panel mains socket on the PAC3760
plus II.
Press the Class I test sequence button.
The PAC3760 plus II ill first test the continuity of
the protective earth.
If the measured value is greater than 1 ohm a cross
is placed next to the R PE enunciator, a FAIL is
indicated.
If the measured value is less than or equal to 1 ohm
a tick is placed next the R PE enunciator.
The unit ill proceed ith the Insulation test.
If the Insulation Resistance is less than 1 Mohm a
cross is placed next to the R ISO enunciator.
If the Insulation Resistance is greater than or equal
to 1 Mohm a tick is placed next to the R ISO
enunciator.
The unit ill proceed ith the iring test, checking
the live and neutral conductors for short or open
circuits or reversed connections.
If the iring is correct a tick is placed next to the
cord enunciator, the GOOd enunciator is illuminated
and a PASS is indicated for the sequence.

PAC3760 plus II Operating Instructions
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Note: If the tested cord has a wiring fault, one of
the following enunciators will be
illuminated in place of GOOd
OPEn indicates that either the live or neutral
conductor is broken (open circuit) or the plug top
fuse has blown
Shrt indicates that the live and neutral
conductors are shorted together
CrOS indicates that the live and neutral
connections are crossed (live and neutral
conductors reversed)
3.6 esting an extension lead
Visually inspect the appliance as per requirements
of AS/NZS 3760:2010. If the cord passes a visual
inspection proceed ith the electrical tests.
Plug the supplied 0.5m IEC lead into the IEC socket
and into a mains outlet on the extension lead. Plug
the mains plug of the extension lead into the front
panel mains socket on the PAC3760 plus II.
The extension lead can no be tested in the same
manner as an IEC as described above.
3.7a est an EPOD (Powerboard)
Visually inspect the appliance as per requirements
of AS/NZS 3760. If the cord passes a visual
inspection proceed ith the electrical tests. AS/NZS
3760 requires an earth resistance test to be
performed to each outlet.
Operators have the choice of carrying out t o test
sequences for EPODs:
Procedure A: a complete test sequence is carried
out for every socket (earth, insulation and polarity)
Procedure B:. a complete test sequence is carried
out on the very last socket. Only an earth resistance
test is carried out on the remaining sockets.

PAC3760 plus II Operating Instructions
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Procedure A:
1. Plug po erboard lead into mains outlet socket on
the PAC3760 plus II.
2. Plug IEC Lead into the IEC socket on the top of
the PAC3760 plus II.
3. Plug the IEC Lead plug into the first socket of the
EPOD.
4. Press Class I test button to perform a complete
test sequence covering earth, insulation and polarity
to test the socket.
5. Repeat sequence on every socket.
Procedure B:
1. Plug po erboard lead into mains outlet socket on
the PAC3760 plus II.
2. Plug IEC Lead into the IEC socket on the top of
the PAC3760 plus II.
3. Plug the IEC Lead plug into the first socket of the
EPOD.
Note: First socket is defined as the closest
socket to the power lead.
4. Press the Class I and LKGE buttons
simultaneously. The PAC3760 plus II performs an
earth test.
5. Repeat step 4 on every socket until the last
socket.
6. At the last socket, press the Class I button to do a
complete test.
Note: Last socket is defined as the socket
furthest from the power lead.
3.7b est an EPOD/Extension Lead with MOV
and/or RCDs
Visually inspect the appliance as per requirements
of AS/NZS 3760. If the cord passes a visual
inspection proceed ith the electrical tests. AS/NZS
3760 requires an earth resistance test to be
performed to each outlet.

PAC3760 plus II Operating Instructions
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This test sequence uses a leakage test to replace an
insulation test at 500V DC to avoid triggering the
MOV (surge protector) or to apply po er to the RCD
to allo circuit connections.
Operators have the choice of carrying out t o test
sequences for EPODs ith MOV and/or RCD:
Procedure A: a complete test sequence is carried
out for every socket (earth, leakage and polarity)
Procedure B: a complete test sequence is carried
out on the very last socket. Only an earth test is
carried out on the remaining sockets.
Note: For extension leads with RCDs, follow 3.7b
Procedure A and carry out a single socket test.
Procedure A:
1. Plug the mains lead into the PAC3760 plus II
and a mains supply socket.
2. Plug po erboard lead into mains outlet socket on
the PAC3760 plus II.
3. Plug IEC Lead into the IEC socket on the top of
the PAC3760 plus II.
4. Plug the IEC Lead plug into the first socket of the
EPOD.
5. Press the Class 1 and LKGE buttons
simultaneously. The PAC3760 plus II ill perform an
earth test.
6. The PAC3760 plus II ill give arning beeps. The
user should press the LKGE button to carry out a
leakage and polarity test on the socket.
7. Repeat sequence on every socket.
Procedure B:
1. Plug the mains lead into the PAC3760 plus II and
a mains supply socket.
2. Plug po erboard lead into mains outlet socket on
the PAC3760 plus II.
3. Plug IEC Lead into the IEC socket on the top of
the PAC3760 plus II.
4. Plug the IEC Lead plug into the first socket of the
EPOD.

PAC3760 plus II Operating Instructions
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Note: First socket is defined as the closest
socket to the power lead.
5. Press the Class I and LKGE buttons
simultaneously. The PAC3760 plus II performs an
earth test.
6. The PAC3760 plus II ill give arning beeps.
Press the Class II button to stop the test.
7. Repeat steps 5 and 6 on every socket until the
last socket.
8. At the last socket, press the Class I and LKGE
buttons simultaneously. The PAC3760 plus II
performs an earth test.
9. The PAC3760 plus II ill give arning beeps.
Press the LKGE button to carry out a leakage and
polarity test on the last socket. This completes the
sequence for the po erboard test.
Note: Construction site EPODs usually have 2
banks of outlet sockets. A complete test
sequence must be carried out on at least one
socket outlet on each bank.
Note: Powerboards with RCDs may cause the
polarity test to fail. An RCD trip time test will
confirm correct polarity if test is allowed to
proceed.
3.8 esting 3-Phase equipment
The PAC3760 plus II is capable of performing
electrical tests on 3-Phase equipment.
In order to perform tests refer to the documentation
supplied ith the adaptor.
If the 3-Phase button is pressed hile no adaptor is
connected to the PAC 3760 plus II then a arning
message PLUG IN 3 PH ADPTR ill be displayed.
3.9 esting RCD Operating ime
The PAC 3760 plus II can be used to measure the
operating time of portable RCDs.