+
25050
PRIMETEST
PRIMETEST
PRIMETEST
OperatingInstructions
Instructions
Operating
PrimeTest 250+
Operating Instructions
PRIMETEST 250 +
Operating Instructions
Bracken Hill
South West Industrial Estate
Peterlee
Co Durham
SR8 2SW
ENGLAND
Tel: +44(0)191 5863511
www.seaward.co.uk
sales@seaward.co.uk
service@seaward.co.uk
Part Number 403A556 Revision 2
© 2014 Seaward Electronic Ltd
1
PrimeTest 250+
Operating Instructions
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 from the day of delivery.
24 Month Warranty Statement
Seaward
provides
a
standard
12-month
manufacturer’s warranty against breakdown during
normal use. This warranty can be upgraded to a
24-month warranty by registering your product with
Seaward within 30 days of purchase and having it
calibrated at an authorised service centre within 13
months of purchase.
For full terms and conditions or to register your
product, please visit our website:
www.seaward.co.uk/warranty24
© Copyright 2014
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.
2
PrimeTest 250+
Operating Instructions
Disposal of old product
This product has been designed and manufactured
with high quality materials and components that
can be recycled and reused.
When this symbol is attached to a product it means
the product is covered by the European Directive
2002/96/EC.
Please familiarise yourself with the appropriate
local separate collection system for electrical and
electronic products.
Please dispose of this product according to local
regulations. Do not dispose of this product along
with normal waste material. The correct disposal
of this product will help prevent potential negative
consequences for the environment and human
health.
3
PrimeTest 250+
Operating Instructions
DECLARATION OF CONFORMITY
As the manufacturer of the apparatus listed, declare
under our sole responsibility that the product:
SEAWARD PrimeTest 250+
To which this declaration relates are in conformity
with the relevant clauses of the following standard:
EN 61010-1:2010
Safety requirements for electrical equipment
for measurement, control, and laboratory use –
Part 1: General requirements.
EN 61010-2-030:2010
Safety requirements for electrical equipment
for measurement, control, and laboratory use –
Part 2-030: Particular requirements for testing
and measuring circuits
IEC 61326:2013
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 2004/108/EC and
2006/95/EC.
This Conformity is indicated by the symbol
“Conformité Européenne”
, i.e.
Seaward Electronic Ltd is registered under BS EN
ISO9001:2000 Certificate No: Q05356.
4
PrimeTest 250+
Operating Instructions
Contents
1
Important Information ........................................... 6
2
3
Introduction ............................................................. 17
Performing Tests ................................................... 19
3.1
Checking a mains power outlet ............. 19
3.2
Testing a Class I Appliance ...................... 20
3.3
Testing a Class II Appliance ...................... 25
3.4
Testing a mains cord ................................... 28
3.5
Testing an extension lead ......................... 29
3.6
Changing the Insulation Test Voltage .. 30
3.7
Changing the CLI Leakage limit ............. 30
3.8
Performing an RCD test on an
installation RCD ......................................... 31
3.9
Performing an RCD test on a Plug
top RCD ........................................................ 32
3.10
Performing a 3-Phase Sequence ........ 33
4
Memory & Print Functions ................................ 35
4.1
Saving Test Results ................................... 35
4.2
Viewing Test Results ................................. 35
4.3
Deleting Test Results ................................ 35
4.4
Transferring Test Results ........................ 36
4.5
Printing Test Results ................................. 36
4.6
Setting the Real Time Clock ................... 37
5
Specification .......................................................... 38
6
Maintenance .......................................................... 40
7
Battery Check ....................................................... 40
7.1
Battery Replacement ............................... 41
8
Fuse Replacement .............................................. 42
9
Service and Calibration ..................................... 43
5
PrimeTest 250+
1
Operating Instructions
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 250+.
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.
If the PrimeTest 250+ is used in a manner
not specified by these operating
instructions then the protection provided
may be impaired.
Always ensure that the circuit or appliance
under test is electrically isolated.
The PrimeTest 250+ and all associated
cables and leads must be checked for
signs of damage before equipment
is operated. Do not use if there are signs
of damage. Only use the correct leads
supplied with the PrimeTest 250+.
Do not touch test probes beyond the
hand barrier on the test probe.
6
PrimeTest 250+
Operating Instructions
The PrimeTest 250+ may apply high voltage
or mains power to the appliance under test.
Do not touch conductive parts of the
appliance while tests are active.
If the PrimeTest 250+ is being used to
determine the presence or absence of
hazardous voltages, always prove the
operation of voltage measurement
function before and after use by means of
a known voltage source or proving unit.
Do not operate the PrimeTest 250+ in an
explosive gas or dust environment.
The PrimeTest 250+ has been designed to
make measurements in a dry environment.
Do not open the PrimeTest 250+, no user
serviceable parts.
Note:
Data may be lost or altered in
virtually any electronic memory under
certain
circumstances.
Therefore
Seaward
Electronic
assumes
no
responsibility for financial losses or
claims due to data lost or otherwise
rendered unusable whether as a result
of abuse, improper use, defects,
disregard of operating instructions or
procedures, or any allied causes.
7
PrimeTest 250+
Operating Instructions
Standard Accessories
Seaward PrimeTest 250+ unit
Carry Case
Black Test Lead 1m
IEC mains cord 0.5m
USB download lead
Support CD
Operating Instructions
Part Number
403A910
71G082
305A950
300A002
396A972
403A759
403A556
Optional Accessories
Test n Tag Pro Printer (serial)
Test n Tag label roll (400 labels)
PATGuard 3 Elite software 1 yr
PATGuard 3 Elite software 3 yr
PATGuard 3 Elite software infinite
Pass Labels (1000 labels)
Fail Labels (1000 labels)
PAT Log Book
PATGuard Elements software v1
230-110V adapter
3 Phase Adaptor 5/16
3 Phase Adaptor 5/32
3 Phase Adaptor 4/16
3 Phase Adaptor 4/32
3 Phase Leakage Adapter 5/16
3 Phase Leakage Adapter 5/32
NiMH Batteries and charger
Part Number
339A933
339A945
400A910
400A912
400A917
91B038
91B311
998A223
387A910
270A076
209A911
209A913
209A910
209A912
391A920
391A910
339A950
PATGuard 3 Elite software can also be trialled and
purchased online from the below web address:
www.seaward.co.uk/pg3trial
8
PrimeTest 250+
Operating Instructions
10
12
11
Figure 1. PrimeTest 250+ Front View
9
PrimeTest 250+
Operating Instructions
16
15
13
14
Figure 2. PrimeTest 250+ End View
Figure 3. Testing CLI appliances, no mains leakage
10
PrimeTest 250+
Operating Instructions
Figure 4. Testing CLII appliances, no mains leakage
11
PrimeTest 250+
Operating Instructions
Figure 5. Testing CLI appliances, mains leakage
12
PrimeTest 250+
Operating Instructions
Figure 6. Testing CLII appliances, mains leakage
13
PrimeTest 250+
Operating Instructions
Figure 7. Testing IEC Leads
14
PrimeTest 250+
Operating Instructions
Figure 8. Testing Installation RCD
15
PrimeTest 250+
Operating Instructions
Figure 9. Testing Plug Top RCD
16
PrimeTest 250+
2
Operating Instructions
Introduction
The PrimeTest 250+ 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
30mA Plug-top RCDs
30mA Installation RCDs
Mains outlet wiring
3-Phase appliances when used with the
Seaward TPA range of 3-phase adaptors.
Overview
With reference to Figures 1 and 2.
1. Save Key
2. Recall Key
3. Print Key
4. CLI / Cord Sequence Key
5. CLII Test Sequence Key
6. Leakage Test Start Key
7. Setup Button
8. RCD Test Key
9. 3-Phase Test Sequence Key
10. LCD
11. Test/Mains outlet socket
12. USB Interface
13. IEC Test Connection
14. Mini DIN Printer Interface
15. Earth Continuity Test Terminal
16. Mains inlet socket
User Interface
The LCD display shows test progress, results for
individual tests and the overall test result for an
appliance or mains cord.
17
PrimeTest 250+
Operating Instructions
Power ON/OFF = press and hold CLI and CLII
simultaneously
Class I appliance test = press the CLI key
Class II appliance test = press the CLII key
Cord / extension lead test = press the CLI key
Enter Setup Mode = press the SETUP key
Once in the setup mode the CLII button can be
used to the change the Insulation voltage while
the LKGE button can be used to change the ILEAK
pass/fail limit. To leave the setup mode press the
SETUP button.
30mA RCD test = press the 30mA RCD key
3 phase appliance test = press the 3 phase key
Note: The PrimeTest 250+ will automatically
switch OFF after approximately 1 minute if no
keys are pressed.
Note: When a key is pressed to initiate a test
sequence, the PrimeTest 250+ will compare
the type of appliance connected with the test
sequence that has been selected, and where
possible, will prompt the user if an inappropriate
test has been selected.
For example, if an IEC lead is connected between
the front panel mains socket and the IEC socket
on the end panel and a CLI appliance test is
selected, the PrimeTest 250+ will flash the Cord
test enunciator to indicate that the Cord test is
the most appropriate test.
18
PrimeTest 250+
3
Operating Instructions
Performing Tests
Press CLI and CLII keys simultaneously to switch
on the PrimeTest 250+. When the unit is ready the
display will be as shown below.
3.1 Checking a mains power outlet
Connect PrimeTest 250+ mains lead to the mains
inlet socket and to the power outlet to be tested.
Each time mains voltage is detected, the line-neutral,
line-earth and neutral-earth voltages will be
displayed for 2s as shown below.
If the voltages are within the acceptable limits
shown below, a tick is shown next to the enunciator.
LN
LE
NE
195V-253V
195V-253V
<30V
19
PrimeTest 250+
Operating Instructions
After 2s the display will return to the start up screen.
If the mains voltage is incorrect then the PrimeTest
250+ will remain in voltage mode until the voltage is
corrected or removed.
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 Earth Continuity
Test Terminal on the PrimeTest 250+ end panel.
Plug the appliance into the PrimeTest 250+
front panel test/mains outlet 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 CLI test key
The PrimeTest 250+ will now perform a
measurement of the protective earth
continuity, reverse the test current and repeat
the measurement. The highest measured value
that occurred during the two tests is displayed.
If the measured value is higher than the factory
set pass/fail threshold, the measured value
is displayed and the unit indicates a fail result
as shown below and the test sequence is halted.
20
PrimeTest 250+
•
Operating Instructions
If the measured value is less than the factory set
pass/fail threshold, the measured value is
displayed and the unit indicates a pass result,
as shown below.
Note:
The PrimeTest 250+ can perform a
continuous RPE measurement (max
3 minutes). Press and hold the CLI key
for approximately 5s until the unit emits
a beep and the symbol appears on the
display. The PrimeTest 250+ continuously
displays the current measured value on
the display and stores the maximum value
in the memory. By pressing the CLI
key again, the measurement is repeated
with reversed polarity. Press the key
again to terminate the RPE test and
display the maximum value of RPE on
the display.
•
The insulation test voltage is shown momentarily
next to the Riso enunciator.
•
The unit will proceed with the Insulation and
Leakage tests.
Note:
The power switch on the appliance
under test must be in the ON position
to perform an insulation test. If no
appliance is detected the PrimeTest
250+ will display the following.
21
PrimeTest 250+
Operating Instructions
•
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 LO LOAd enunciator remains on the
display, the load presented by the appliance
may be too small for the PrimeTest 250+
to detect. In this case, press the CLI test key
to continue.
•
If the Insulation Resistance is greater than the
factory set limit a tick is placed next to the
Riso enunciator. If the Insulation Resistance is
less than the set limit a cross is placed next
to the Riso enunciator, the FAIL enunciator is
displayed and the test sequence is halted.
Note:
•
If a mains supply is detected, the PrimeTest
250+ will perform a differential leakage test.
If the PrimeTest 250+ does not detect
a mains supply then the PrimeTest 250+
will perform a substitute leakage test.
If a substitute leakage test is performed then
the PrimeTest 250+ will start the test without
the need for user intervention. If the substitute
leakage is less than the factory set limit a tick is
placed next to the Iea enunciator.
22
PrimeTest 250+
•
Operating Instructions
If a differential leakage test is performed then
the test PrimeTest 250+ will prompt the user to
start the Leakage test by flashing the Ileak
icon. If no key is pressed the PrimeTest 250+
will timeout and return to the start screen.
Note:
If the LKGE key is pressed momentarily
the differential test duration is 5s.
If the LKGE key is pressed and held for
2s the differential test duration is
2 minutes.
When the duration is set to 2 minutes,
the test can be terminated at any time
by pressing the LKGE key.
•
When the LKGE key is pressed to start the
differential leakage test the PrimeTest 250+ will
check the incoming mains supply to ensure
that the voltages are correct. The enunciators
are displayed if there is an error with the
connected mains supply:
LN
Flash
OFF
•
LE
Flash
Flash
NE
OFF
Flash
Mains status
No mains
Earth fault or Live
and Neutral reverse
If the mains voltage is correct, the PrimeTest 250+
will proceed with the differential leakage test.
23
PrimeTest 250+
•
•
Operating Instructions
If the Differential Leakage is less than the
factory set limit a tick is placed next to the
Ileak enunciator.
If all of the tests within the sequence have
passed then the PASS enunciator is illuminated.
24
PrimeTest 250+
Operating Instructions
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 Earth Continuity
Test Terminal on the PrimeTest 250+ end panel.
Plug the appliance into the PrimeTest 250+
front panel test/mains outlet 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 CLII test key.
The display will momentarily show the insulation
test voltage before proceeding with the test.
Note:
The power switch on the appliance
under test must be in the ON position
to perform an insulation test. If no
appliance is detected the PrimeTest
250+ will display the following.
25
PrimeTest 250+
•
•
•
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 LO LOAd enunciator remains on the
display, the load presented by the appliance
may be too small for the PrimeTest 250+
to detect. In this case, press the CLII test key
to continue.
The PrimeTest 250+ will perform an Insulation
test. If the Insulation Resistance is greater
than the factory set limit a tick is placed next to
the Riso enunciator. If the Insulation Resistance
is less than the set limit a cross is placed
next to the Riso enunciator, the FAIL enunciator
is displayed and the test sequence is halted.
Note:
•
Operating Instructions
If a mains supply is detected, the
PrimeTest 250+ will perform a touch
leakage test.
If the PrimeTest 250+ does not detect
a mains supply then the PrimeTest 250+
will perform a substitute leakage test.
If a Substitute Leakage test is performed then
the PrimeTest 250+ will start the test without
the need for user intervention. If the Substitute
Leakage is less than the factory set limit a tick
is placed next to the Iea enunciator.
26
PrimeTest 250+
•
Operating Instructions
If a touch leakage test is performed then the
PrimeTest 250+ will prompt the user to start
the Leakage test by flashing the Ileak icon.
If no key is pressed the PrimeTest 250+ will
timeout and return to the start screen.
Note:
If the LKGE key is pressed momentarily
the touch leakage test duration is 5s.
If the LKGE key is pressed and held for
2s the touch leakage test duration is
2 minutes.
When the duration is set to 2 minutes,
the test can be terminated at any time
by pressing the LKGE key.
•
When the LKGE key is pressed to start the
touch leakage test the PrimeTest 250+ will
check the incoming mains supply to ensure
that the voltages are correct. The enunciators
are displayed if there is an error with the
connected mains supply:
LN
Flash
OFF
LE
Flash
Flash
NE
OFF
Flash
Mains status
No mains
Earth fault or Live
and Neutral reverse
•
If the mains voltage is correct, the PrimeTest
250+ will proceed with the touch leakage test.
•
If the touch leakage is less than the factory set
limit a tick is placed next to the Ileak enunciator.
If all of the tests within the sequence have
passed then the PASS enunciator is illuminated.
•
27
PrimeTest 250+
Operating Instructions
3.4 Testing a mains cord
•
•
•
•
•
•
•
•
•
•
•
•
•
Visually inspect the mains cord and plug for
signs of damage.
Check that the correct fuse is fitted.
If the cord passes a visual inspection proceed
with the electrical tests.
Plug the mains cord under test into the IEC
socket and the front panel test/mains socket
on the PrimeTest 250+.
Press the CLI test key.
The PrimeTest 250+ will first test the continuity
of the protective earth.
If the measured value is greater than the factory
set limit a cross is placed next to the RPE
enunciator, a FAIL is indicated and the test
sequence will be halted.
If the measured value is less than the factory
set limit a tick is placed next the RPE enunciator.
The unit will proceed with the Insulation test.
If the Insulation Resistance is lower than the
factory set limit a cross is placed next to the
Riso enunciator and the test sequence is halted.
If the Insulation Resistance is greater than the
factory set limit a tick is placed next to the
Riso enunciator. If the Insulation Resistance is
less than the set limit a cross is placed next
to the Riso enunciator, the FAIL enunciator is
displayed and the test sequence is halted.
The unit will proceed with the wiring test,
checking the live and neutral conductors for
short or open circuit and reverse connections
If the wiring is correct a tick is placed next to
the cord enunciator, the GOOd enunciator
is illuminated and a PASS is indicated for
the sequence.
28
PrimeTest 250+
Operating Instructions
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)
Shor indicates that the live and neutral
conductors are shorted together
CrOS indicates that the live and neutral
conductors are reversed
3.5 Testing an extension lead
•
•
•
•
•
Visually inspect the mains cord and plug for
signs of damage.
Check that the correct fuse is fitted.
If the cord passes a visual inspection proceed
with 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
PrimeTest 250+.
The extension lead can now be tested in the
same manner as an IEC as described above.
29
PrimeTest 250+
Operating Instructions
3.6 Changing the Insulation Test Voltage
The Insulation test performed in the CLI and CLII test
sequences can be changed to 250V for appliances
with MOVs which would fail an Insulation test
performed at 500V.
In order to change the Insulation voltage press the
SETUP button to enter setup mode. Once in setup
mode press the CLII button, the selected insulation
voltage will be displayed next to the Riso enunciator.
To leave setup mode press the SETUP button.
3.7 Changing the CLI Leakage limit
The CLI Leakage pass/fail limit can be changed
between 0.75mA and 3.5mA.
In order to change the Leakage limit press the
SETUP button to enter setup mode. Once in setup
mode press the LKGE button, the selected pass/fail
limit will be displayed next to the Ileak enunciator.
To leave setup mode press the SETUP button.
30
PrimeTest 250+
Operating Instructions
3.8 Performing an RCD test on an installation RCD
When performing an RCD test ensure that
the Continuity Test probe is disconnected
from the PrimeTest 250+.
Equipment which is connected downstream
of the RCD may cause measurement
inaccuracies.
Voltages between the protective conductor
and earth may influence measurements.
Leakage currents in the circuit may
influence measurements.
Potential fields of
installations
may
measurement.
other earthing
influence
the
The PrimeTest 250+ can be used to measure the
operating time of an installation RCD.
Connect the PrimeTest 250+ IEC lead to the IEC
socket of the PrimeTest 250+ and a mains outlet on
the RCD protected circuit.
To test the RCD operating time press the 30mA
RCD test key.
The mains supply status is checked and the status
is indicated using the LN, LE and NE enunciators
of the LCD.
LN
Flash
OFF
LE
Flash
Flash
NE
OFF
Flash
31
Mains status
No mains
Earth fault
PrimeTest 250+
Operating Instructions
Whenever reSet is displayed on the LCD press the
reset button on the RCD.
The PrimeTest 250+ will perform a IΔn (30mA) 0°
test, the operating time of the RCD will be shown on
the PrimeTest 250+ LCD. If the test passes then the
PrimeTest 250+ will perform a IΔn (30mA) 180° test. As
long as the tests continue to pass the PrimeTest 250+
will continue to test both 0° and 180° at IΔn (30mA).
3.9 Performing an RCD test on a Plug top RCD
The PrimeTest 250+ can be used to measure the
operating time of a plug top RCD.
When plugging the mains lead into the
PrimeTest 250+ plus ensure that the
polarity orientation of the connector is
correct. DO NOT FORCE THE PLUG INTO
THE CONNECTOR. Doing so may damage
the PrimeTest 250+.
When performing an RCD test ensure that
the Continuity Test probe is disconnected
from the Primetest 250+.
Connect the PrimeTest 250+ mains lead to the mains
inlet socket of the PrimeTest 250+ and a mains outlet.
Plug the RCD into the PrimeTest 250+. Plug the
supplied IEC lead into the RCD and the PrimeTest
250+ IEC socket.
To test the RCD operating time press the 30mA RCD
test key.
The mains supply status is checked and the status is
indicated using the LN, LE and NE enunciators of the
LCD.
32
PrimeTest 250+
LN
Flash
OFF
LE
Flash
Flash
Operating Instructions
NE
OFF
Flash
Mains status
No mains
Earth fault
Whenever reSet is displayed on the LCD press the
reset button on the RCD.
The PrimeTest 250+ will perform a IΔn (30mA) 0°
test, the operating time of the RCD will be shown on
the PrimeTest 250+ LCD. If the test passes then the
PrimeTest 250+ will perform a IΔn (30mA) 180° test. As
long as the tests continue to pass the PrimeTest 250+
will continue to test both 0° and 180° at IΔn (30mA).
3.10
Performing a 3-Phase Sequence
The PrimeTest 250+ can be used to measure RPE
and earth leakage current on 3 phase equipment
when used with the optional 3 phase adaptor
accessory.
•
•
•
•
•
•
•
Visually inspect the appliance and mains cord
for signs of damage.
If the appliance passes a visual inspection
proceed with the electrical tests.
Refer to the documentation supplied with the 3
phase adaptor and connect the adaptor in line
with the 3 phase equipment under test.
Connect the 3 phase adaptor test lead to the
mains input socket 9 (refer to figure 2) on the
PrimeTest 250+.
Connect the RPE test probe to an exposed
conductive part on the 3 phase equipment.
Press the 3 phase key on the PrimeTest 250+
to being the test.
If there is a contact voltage present on the
conductive parts of the equipment under test,
the test is terminated and a Volt on test Probe
warning message is shown on the display.
33
PrimeTest 250+
•
Operating Instructions
Otherwise, the PrimeTest 250+ will proceed
with the RPE measurement, reverse the test
current and then repeat the measurement. The
highest measured value that occurred during
the two tests is displayed for approximately 2s.
Note:
There is no factory programmed test
limit for the 3 phase RPE measurement
and so no tick or cross is displayed.
•
The PrimeTest 250+ will then display the current
flowing in the protective conductor of the 3
phase supply.
•
The 3-Phase leakage test will run for 30
seconds but can be stopped earlier by pressing
the 3-Phase button.
Note:
If the 3-Phase key is pressed while no
adaptor is connected to the PrimeTest
250+ then a warning message PLUG IN
3 PH ADPTR will be displayed.
34
PrimeTest 250+
4
Operating Instructions
Memory & Print Functions
The PrimeTest 250+ can store the results for a
maximum of 999 appliances.
4.1 Saving Test Results
In order to store a test result press the STORE Key
when the test sequence has been completed. The
results displayed on the LCD will be recorded in
memory. Once the results for a test sequence have
been recorded the STORE Key is disabled until
another test sequence has been performed.
4.2 Viewing Test Results
When the PrimeTest 250+ is waiting to start a new
test sequence press the RECALL Key, this will
display the last recorded results. Other results can
be displayed by scrolling through the memory. To
scroll through the memory use the RECALL and
STORE Keys. Pressing any other Key or waiting
for 10 seconds will return the PrimeTest 250+ into
test mode.
4.3 Deleting Test Results
To delete all of the results in memory press and
hold the STORE and RECALL keys together while
displaying the recalled results until the counter
reaches zero.
35
PrimeTest 250+
Operating Instructions
4.4 Transferring Test Results
Test data can be transferred to a PC using the
Datalogger on the provided PT250+ Support CD.
Insert the CD into your disc drive and then view the
InstallationInstructions.txt file for information on
how to install.
Once the USB drivers and Datalogger are installed
you can open the Datalogger program from your
desktop.
Connect your device to the PC using a USB
connector. (The very first time you do this, your PC
will automatically install a COM port driver). You can
check which COM port is being used by looking in
the Device manager.
E.g.: Silicon Labs CP210x USB to UART
Bridge(COM14)
Select the correct COM port.
Click on Download. A progress bar will appear.
On the PrimeTest 250+ in order to transfer the entire
test storage area to PC press and hold the RECALL
key for 5 seconds. The data will be transmitted
using the USB interface.
When all data has been captured and stored the
progress bar will disappear and you will be asked
where to save the data.
Once the file is saved you may click the “Open”
button to open the document with default
application.
For example, if you saved the file in .csv format
(the default) then it may open using a spreadsheet
application.
4.5 Printing Test Results
In order to print a test label press the PRINT Key
when the test sequence has been completed or
when the test result is being reviewed. The printer
must be attached before the PRINT Key is pressed.
In order to save power the PrimeTest 250+ will turn
the printer on and off when required.
36
PrimeTest 250+
Operating Instructions
4.6 Setting the Real Time Clock
Setting time and date:
Ensure that the PrimeTest 250+ is powered off.
Press and hold the RECALL key and then press
simultaneously the class I and class II keys to
power on the tester.
The date format and time format is shown as follows:
MM.DD = month (1-12). Day (1-31)
YYYY = year
HH.mm = hours (0-23).minutes (0-59)
SS = seconds (0-59)
Press the class I key to select a date field and time
field.
A flashing digit shows that this field can be set.
The save key and recall key are used to increase or
decrease the value in each field, the second field is
set to zero.
Turn off the device to save the setting.
37
PrimeTest 250+
5
Operating Instructions
Specification
Earth Continuity
Display Range
Measuring Range
Accuracy
Test current
Test voltage
0.01ohms to 19.99ohms
0.05ohms to 19.99ohms
± (5% + 2 digits)
200mA minimum
6V nominal
Insulation resistance
Display Range
Measuring Range
Accuracy
Test voltage
Test current
Test current
0.01Mohms to 19.99Mohms
0.10Mohms to 19.99Mohms
± (5% + 2 digits)
250V / 500V
>1mA
<2mA into 2k
Substitute Leakage Current
Display Range
0.10mA to 19.99mA
Measuring Range 0.25mA to 19mA
Accuracy
± (5% + 2 digits)
Test voltage
40V rms, 50Hz AC
Test current
<10mA into 2k
Differential Leakage Current
Display Range
0.15mA to 19.99mA
Measuring Range 0.25mA to 19mA
Accuracy
± (5% + 2 digits)
Test voltage
mains voltage, 50Hz AC
Touch Leakage Current
Display Range
Measuring Range
Accuracy
Test voltage
0.10mA to 3.5mA
0.10mA to 1.99mA
± (5% + 2 digits)
mains voltage, 50Hz AC
3-Phase Leakage Current
Display Range
0.10mA to 9.99mA
Measuring Range 0.25mA to 9.99mA
Accuracy
± (5% + 2 digits)
Test voltage
mains voltage, 50Hz AC
38
PrimeTest 250+
Operating Instructions
Cord Test
Earth continuity, insulation resistance as above.
Check for Live and Neutral open circuit, short
circuit or reversed polarity.
RCD Test
Display Range
Measuring Range
Accuracy
Test Current
Current Accuracy
IΔn - 0ms to 500ms
5IΔn – 0ms to 40ms
IΔn - 10ms to 500ms
5IΔn – 10ms to 40ms
± 2ms
IΔn – 30mA
5IΔn – 150mA
-0, +10%
Factory Set Pass/Fail limits
Class I
Class II
Cord
3-Phase
Earth
Continuity
Insulation
Resistance
Leakage
0.2 ohms
n/a
0.2 ohms
0.2 ohms
1.0Mohm
2.0Mohm
1.0Mohm
1.0Mohm
0.75 / 3.5
0.25mA
n/a
3.5mA
Environmental rating
IP Rating IP40
Operating temperature range 0°C to 40°C, without
moisture condensation.
Storage temperature range –25° to 65°.
Note: Batteries should be removed prior to storage.
Overvoltage category 300V CAT II
39
PrimeTest 250+
6
Operating Instructions
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.
Note: The PrimeTest 250+ contains no user
serviceable parts. If an Error warning should appear
on the display please contact the manufacturer or
an authorised Seaward Service Agent for advise.
7
Battery Check
The PrimeTest 250+ is powered from 6 AA cells
which are checked before a test is performed. When
the battery voltage is low the
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
enunciator will
flash and all test keys are disabled. The batteries
must be replaced.
40
PrimeTest 250+
Operating Instructions
7.1 Battery Replacement
Before opening the PrimeTest 250+ ensure
that all test leads are disconnected.
•
•
•
•
•
•
Switch off the unit by pressing and holding the
CLI and CLII keys.
Disconnect all leads from the PrimeTest 250+.
Place the PrimeTest 250+ face down and
release the captive screw in the battery
compartment cover.
Remove the battery compartment cover and
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.
41
PrimeTest 250+
8
Operating Instructions
Fuse Replacement
Before opening the PrimeTest 250+ ensure
that all test leads are disconnected.
•
•
•
•
•
•
Switch off the unit by pressing and holding the
CLI and CLII keys.
Disconnect all leads from the PrimeTest 250+.
Place the PrimeTest 250+ face down and
release the captive screw in the battery
compartment cover.
Remove the battery compartment cover and
remove the discharged batteries.
Insert the replacement fuse into the fuse
compartment ensuring that the fuse snaps
into place.
Relocate the battery cover over the battery
compartment and fasten in position with the
battery cover captive screw.
Replacement F16A 250V Fuse
42
Part Number
27B114
PrimeTest 250+
9
Operating Instructions
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 service agent. We
recommend a recalibration period of one year.
For help or advice on Service and Calibration
contact:
Service Department
Seaward Electronic Ltd
11 Bracken Hill
South West Industrial Estate
Peterlee
Co. Durham
SR8 2LS
United Kingdom
Email: service@seaward.co.uk
Tel: +44 (0) 191 587 8739
Fax: +44 (0) 191 518 4666
43
PrimeTest 250+
Operating Instructions
44
+
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PRIMETEST
PRIMETEST
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OperatingInstructions
Instructions
Operating