Seaward PrimeTest 50 User manual

PrimeTest 50 Operating Instructions
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Operating Instructions
Bracken Hill
South West Industrial Estate
Peterlee
Co Durham
SR8 2SW
ENGLAND
Tel: [phone]
www.seaward.co.uk
[e-mail]
[e-mail]
Part Number 347A550 Revision 1
© 2006 Seaward Electronic Ltd

PrimeTest 50 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
workmanship under normal use and service for a
period of 1 year. The period of warranty will be
effective at the day of delivery.
(c) Copyright 2006
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, without prior written
consent from SEAWARD Electronic Limited. This
also applies to accompanying drawings 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 without 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 within such contract.

PrimeTest 50 Operating Instructions
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DECLARATION OF CONFORMITY
As the manufacturer of the apparatus listed, declare
under our sole responsibility that the product:
PRIMETEST 50
To which this declaration relates are in conformity
with the relevant clauses of the following standard:
BS EN 61010-1:2001
Safety requirements for electrical equipment for
measurement, control, and laboratory use – Part
1: General requirements.
BS EN 61326:1998
Electrical equipment for measurement, control
and laboratory user-EMC Requirements
Performance: The instrument operates within
specification when 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.
Seaward Electronic Ltd is registered under BS EN
ISO9001:2000 Certificate No: Q05356.

PrimeTest 50 Operating Instructions
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Contents
1Important Information 5
2Introduction 7
3Performing Tests 8
3.1 Checking a mains power outlet 8
3.2 Testing a Class I Appliance 9
3.3 Testing a Class II Appliance 11
3.4 Testing a mains cord 12
4Specification 14
5Maintenance 14
6Battery Check 15
6.1 Battery Replacement 15
7Service and Calibration 16

PrimeTest 50 Operating Instructions
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1 Important Information
These operating instructions are intended for the use
of adequately trained personnel.
The following symbols are used in these operating
instructions and on the PrimeTest 50.
Caution, risk of electric shock.
Indicates instructions must be followed
to avoid danger to persons.
Caution, risk of danger. The operating
instructions must be adhered to in order
to avoid danger.
Before use, ensure unit is clean and dry; visually
inspect all leads, connectors, and case. Any damage
or wear must be rectified prior to use.
Standard Accessories
Part Number
PrimeTest 50 unit 347A910
Carry Case 71G082
Black Test Lead 1m 347A002
UK IEC mains cord 0.5m 300A002
Operating Instructions 347A550
Optional Accessories
Part Number
PATGuard Lite 352A930
PATGuard Workabout 336A910
NiMH Batteries and charger 339A950
Full details and specifications can be found at
www.seaward.co.uk or by calling Seaward Sales
on 0191 5878724 / 0191 5878748.

PrimeTest 50 Operating Instructions
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Figure 1. PrimeTest 50 Front View
Figure 2. PrimeTest 50 End View

PrimeTest 50 Operating Instructions
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2 Introduction
The PrimeTest 50 is a hand held battery powered
unit suitable for carrying out electrical safety checks
on:
• Class I appliances
• Class II appliances
• IEC mains leads
• Extension leads
• Mains outlet wiring
Numbers shown in circles e.g. refer to figure 1
and figure 2 on page 5.
Test connections on the PrimeTest 50 are:
• Mains socket on front panel for connecting the
appliance under test.
• 4mm socket on end panel for earth test probe
• IEC socket on end panel for mains cord
testing.
User Interface
The LCD display shows test progress, results for
individual tests and the overall test result for an
appliance or mains cord.
Tests are initiated using the three push buttons:
Power ON/OFF = + until a beep is heard
Class I appliance test =
Class II appliance test =
Cord / extension lead test =
Note: The PrimeTest 50 will automatically switch
OFF after approximately 3 minutes if no keys are
pressed. The auto switch-off is disabled during a
power socket test.

PrimeTest 50 Operating Instructions
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3 Performing Tests
Press keys +to switch on the PrimeTest 50.
When the unit is ready the display will be as shown
below.
3.1 Checking a mains power outlet
Connect the IEC power cord to the PrimeTest 50
socket and plug into the mains power outlet to be
tested.
If the mains socket wiring is correct the display will
show.
If there is a fault with the socket wiring this is
indicated by the display below.

PrimeTest 50 Operating Instructions
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In the event of a failure, disconnect the PrimeTest 50
from the supply and rectify the fault.
Do not leave the PrimeTest 50 permanently
connected to a mains supply.
The auto switch-off function is disabled
when the PrimeTest 50 is connected to a
live mains socket. The unit will beep
continually after 3 minutes to remind the
user to disconnect from the mains socket.
3.2 Testing a Class I Appliance
• Visually inspect the appliance and mains cord for
signs of damage.
• If the appliance passes a visual inspection
proceed with the electrical tests.
• Plug the earth test lead into the 4mm socket
on the PrimeTest 50 end panel.
• Plug the appliance into the PrimeTest 50 front
panel mains socket
• Connect the earth test probe to an exposed
metal part on the appliance.
• If the Appliance under test has an ON/OFF
switch, make sure it is in the ON position.
• Press the Class I test key
• The PrimeTest 50 will now test the continuity of
the protective earth.
• If the measured value is outside acceptable
limits a cross is placed next to the Earth Cont
enunciator, a FAIL is indicated and the test
sequence is halted.

PrimeTest 50 Operating Instructions
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• If the measured value is within acceptable limits
a tick is placed next the Earth Cont enunciator.
• The unit will proceed with the Insulation test.
Note: The power switch on the appliance under
must be in the ON position to perform an
insulation test. If no appliance is detected
the PrimeTest 50 will display the following.
• Check that the appliance power switch is in the
ON position. The test will automatically proceed
if the appliance power switch is placed in the ON
position.
• If the Check Connections enunciator remains
on the display, the load presented by the
appliance may be too small for the PrimeTest 50
to detect. In this case, press the test key to
continue.
• If the Insulation Resistance is greater than the
acceptable limit a tick is placed next to the
Insulation enunciator and the PASS enunciator
is illuminated.

PrimeTest 50 Operating Instructions
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3.3 Testing a Class II Appliance
• Visually inspect the appliance and mains cord for
signs of damage.
• If the appliance passes a visual inspection
proceed with the electrical tests.
• Plug the earth test lead into the 4mm socket
on the PrimeTest 50 end panel.
• Plug the appliance into the PrimeTest 50 front
panel mains socket
• Connect the earth test probe to an exposed
metal part on the appliance.
• If the Appliance under test has an ON/OFF
switch, make sure it is in the ON position.
• Press the Class II test key
• The PrimeTest 50 will now test Insulation
Resistance.
Note: The power switch on the appliance under
must be in the ON position to perform an
insulation test. If no appliance is detected
the PrimeTest 50 will display the following.

PrimeTest 50 Operating Instructions
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• Check that the appliance power switch is in the
ON position. The test will automatically proceed
if the appliance power switch is placed in the ON
position.
• If the Check Connections enunciator remains
on the display, the load presented by the
appliance may be too small for the PrimeTest 50
to detect. In this case, press the test key to
continue.
• If the Insulation Resistance is greater than the
acceptable limit a tick is placed next to the
Insulation enunciator and the PASS enunciator
is illuminated.
3.4 Testing a mains cord
• Visually inspect the appliance and mains cord for
signs of damage.
• If the appliance passes a visual inspection
proceed with the electrical tests.
• Plug the mains lead under test into the IEC
socket and the front panel mains socket on
the PrimeTest 50.
• Press the cords test key
• The PrimeTest 50 will now test the continuity of
the protective earth.
• If the measured value is outside acceptable
limits a cross is placed next to the Earth Cont
enunciator, a FAIL is indicated and the test
sequence is halted.
• If the measured value is within acceptable limits
a tick is placed next the Earth Cont enunciator.
• The unit will proceed with the Insulation test.

PrimeTest 50 Operating Instructions
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• If the Insulation Resistance is lower than the
acceptable limit a cross is placed next to the
Insulation enunciator and the test sequence is
halted.
• If the Insulation Resistance is greater than the
acceptable limit a tick is placed next to the
Insulation enunciator.
• The unit will proceed with the wiring test,
checking the live and neutral conductors for
short or open circuits or reversed connections.
• If the wiring is correct a tick is placed next to the
cord enunciator and a pass is indicated for the
sequence.

PrimeTest 50 Operating Instructions
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4 Specification
Earth Continuity
Pass Limit 0.2Ω
Accuracy* ± 0.03Ω
Test current 200mA minimum
Test voltage 9V nominal
Insulation resistance
Pass Limit 1.0MΩCLI, 2.0MΩCL II
2.0MΩMains cord
Accuracy ± 0.1MΩ
Test voltage 500V
Test current >1mA into 500kΩ
Test current <2mA into 2kΩ
Cord Test
Earth continuity, insulation resistance as above.
Check for Live and Neutral open circuit, short
circuit or reversed polarity.
*When used with Seaward test lead, Part Number 347A002
Environmental rating
IP40
Operating temperature range 0°C to 40°C, without
moisture condensation.
Storage temperature range –25° to 65°. Batteries
should be removed prior to storage.
Overvoltage category 300V CAT II
5 Maintenance
Clean only with a dry cloth; do not use solvents.
Before use, ensure unit is clean and dry; visually
inspect all leads, connectors, and case. Any damage
or wear must be rectified to preserve user safety.
Check the battery contacts and compartment are
free of electrolytic contamination.
Any contamination of the battery contacts or
compartment should be cleaned with a dry cloth.

PrimeTest 50 Operating Instructions
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6 Battery Check
The PrimeTest 50 is powered from a 6 AA cells
which are checked before a test is performed. When
the battery voltage is low the Low Batt enunciator is
illuminated. The unit will continue to perform within
specification for a limited number of tests, dependent
upon the type of the batteries fitted.
When the battery voltage reaches a level where the
performance is affected the Low Batt enunciator will
flash and all test keys are disabled. The batteries
must be replaced.
6.1 Battery Replacement
Before opening the PrimeTest 50 ensure
that it is disconnect all test leads.
• Switch off the unit by pressing and holding
keys and .
• Disconnect the black test lead from 4mm
test socket .
• Disconnect the IEC mains cable from the
IEC socket .
• Disconnect the EUT mains cable from the
EUT socket .
• Place the PrimeTest 50 face down, release
the captive screw in the battery compartment
cover.
• Remove the battery compartment cover.
• Remove the discharged batteries.
• Insert the replacement batteries into the
battery compartment ensuring that the
battery polarity matches the marking on the
inside of the battery compartment.
• Relocate the battery cover over the battery
compartment and fasten in position with the
battery cover captive screw.

PrimeTest 50 Operating Instructions
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7 Service and Calibration
To maintain the specified accuracy of the
measurement results, the instrument must be
recalibrated at regular intervals by either the
manufacturer or an authorised Seaward Service
Agent. We recommend a recalibration period of one
year.
For help or advise on Service and Calibration
contact:
Service Department
Seaward Electronic
Bracken Hill
South West Industrial Estate
Peterlee
Co Durham SR8 2SW
England
Tel: [phone]
Email: [e-mail]
Web: www.seaward.co.uk

Thank you for reading this data sheet.
For pricing or for further information, please contact us at our UK Office, using the details
below.
UK Office
Keison Products,
P.O. Box 2124, Chelmsford, Essex, CM1 3UP, Engl nd.
Tel: [phone]
F x: [phone]
Em il: s [email protected]
Please note - Product designs and specifications are sub ect to change without notice. The user is responsible for determining the
suitability of this product.