METREL BetaPATPlus MI 3304, OmegaPATPlus MI 3305 User Manual
BetaPATPlus MI 3304
OmegaPATPlus MI 3305
User Manual
Ver. 2.1, Code no. 20 751 220
2
Distributor:
Producer:
Metrel d.d.
Ljubljanska cesta 77
SI-1354 Horjul
E-mail: metrel@metrel.si
http://www.metrel.si
© 2007 Metrel
Mark on your equipment certifies that this equipment meets the requirements of
the EC (European Community) regulations concerning safety and
electromagnetic compatibility.
No part of this publication may be reproduced or utilized in any form or by any means
without permission in writing from METREL.
OmegaPATPlus / BetaPATPlus Table of contents
3
1 General description................................................................................................6
1.1 Warnings ....................................................................................................7
1.2 Warning markings on connector panel .......................................................7
1.3 Standards applied ......................................................................................7
2 Instrument description...........................................................................................8
2.1 Front panel .................................................................................................8
2.2 Meaning of symbols and messages on the instrument display ..................9
2.3 Dual voltage operation (UK model only)...................................................14
3 Technical specifications......................................................................................15
3.1 Earth bond resistance ..............................................................................15
3.2 Insulation resistance.................................................................................15
3.3 Substitute leakage current........................................................................16
3.4 Leakage current and apparent power.......................................................16
3.5 Touch leakage current..............................................................................17
3.6 Polarity test ..............................................................................................17
3.7 Clamp current...........................................................................................17
3.8 Trip-out time of portable RCD ..................................................................18
3.9 Flash test (MI 3305 – OmegaPATPlus only) ............................................18
3.10 General data ............................................................................................18
4 Main menu and test modes..................................................................................20
4.1 Help menus ..............................................................................................20
4.1.1 How to enter help menu ...........................................................................20
4.2 Main menu ...............................................................................................21
4.3 Autotest shortcut menu ............................................................................21
4.4 Autotest custom menu..............................................................................21
4.5 Project autotests menu.............................................................................22
4.6 Single test menu.......................................................................................22
4.7 User / appliance data menu .....................................................................23
4.8 Recall / delete / send results menu ..........................................................23
4.9 Data upload / download menu..................................................................23
4.10 Setup menu..............................................................................................24
5 Single test mode...................................................................................................25
5.1 How to perform measurements in single test mode .................................25
6 Measurements ...................................................................................................... 26
6.1 Earth bond resistance ..............................................................................26
6.1.1 How to perform earth bond resistance measurement...............................26
6.2 Insulation resistance.................................................................................27
6.2.1 Insulation resistance on class I appliances ..............................................27
6.2.2 Insulation resistance on class II appliances .............................................28
6.2.3 How to perform single insulation resistance measurement ......................29
6.3 Substitute leakage current........................................................................30
6.3.1 Substitute leakage current on class I appliances .....................................30
6.3.2 Substitute leakage current on class II appliances ....................................30
6.3.3 How to perform single substitute leakage current measurement..............31
6.4 Leakage current and power......................................................................32
6.4.1 How to perform single leakage current measurement..............................33
6.5 Touch leakage current..............................................................................34
6.5.1 How to perform single touch leakage current measurement ....................34
OmegaPATPlus / BetaPATPlus Table of contents
4
6.6 Polarity test ..............................................................................................35
6.6.1 How to perform the measurement............................................................36
6.7 TRMS current measurement using clamp current adapter.......................37
6.7.1 How to perform TRMS current measurement using clamp current adapter
.................................................................................................................37
6.8 RCD test...................................................................................................38
6.8.1 RCD test on appliances............................................................................38
6.8.2 How to perform an RCD test ....................................................................39
6.8.3 How to perform RCD single test...............................................................40
6.8.4 How to perform RCD auto test .................................................................41
6.9 Flash test (MI 3305 – OmegaPATPlus only) ............................................44
6.9.1 Flash test on class I appliances ...............................................................44
6.9.2 Flash test of class II appliances ...............................................................44
6.9.3 How to perform single Flash measurement..............................................44
7 Autotest sequences .............................................................................................46
7.1 Autotest shortcut menu ............................................................................46
7.1.1 Selecting the autotest shortcut sequence.................................................46
7.1.2 How to view autotest shortcut sequence measurement parameters ........47
7.1.3 How to start autotest shortcut sequence ..................................................48
7.2 Autotest custom menu..............................................................................48
7.2.1 How to view and/or change an existing autotest custom sequence .........48
7.2.2 How to save the autotest custom sequence.............................................50
7.2.3 How to delete an existing custom test sequence from the list ..................50
7.2.4 How to start custom autotest sequence ...................................................50
7.3 Project autotests ......................................................................................51
7.3.1 How to select a project autotest ...............................................................51
7.3.2 How to start a project autotest..................................................................53
7.3.3 Compare of results (evaluation of result trends).......................................54
7.4 Performing autotest sequences................................................................55
7.4.1 Visual inspection ......................................................................................55
7.4.2 Earth bond resistance measurement........................................................55
7.4.3 Insulation resistance measurement..........................................................56
7.4.4 Substitute leakage current measurement.................................................56
7.4.5 Leakage current and apparent power measurement................................57
7.4.6 Touch leakage current measurement.......................................................57
7.4.7 Polarity test ..............................................................................................58
7.4.8 TRMS current measurement using clamp current adapter.......................58
7.4.9 RCD test...................................................................................................58
8 Working with autotest results .............................................................................60
8.1 Saving autotest results .............................................................................60
8.2 Recalling results.......................................................................................61
8.3 Deleting results ........................................................................................63
8.4 Downloading and printing results .............................................................64
8.4.1 Communication ports settings for communication with PC.......................66
8.4.2 Settings for generic serial printer..............................................................67
8.4.3 Settings for label printer ...........................................................................68
9 Other instrument operations...............................................................................70
9.1 User / appliance data menu .....................................................................70
9.1.1 Users submenu ........................................................................................70
OmegaPATPlus / BetaPATPlus Table of contents
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9.1.2 Appliances submenu ................................................................................71
9.1.3 Test sites (UK model) / buildings (Aus/NZ model) submenu ....................71
9.1.4 Locations (UK model) / rooms (Aus/NZ model) submenu ........................72
9.2 Data upload / download............................................................................72
9.3 Setup menu..............................................................................................73
9.3.1 Setting date and time ...............................................................................73
9.3.2 Display contrast adjustment .....................................................................74
9.3.3 Print header..............................................................................................74
9.3.4 Language selection ..................................................................................75
9.3.5 Viewing of instrument data .......................................................................75
9.3.6 Instrument settings...................................................................................75
9.3.7 Password .................................................................................................77
9.3.8 Communication settings ...........................................................................78
9.3.9 Reset instrument settings.........................................................................79
10 Maintenance..........................................................................................................80
10.1 Periodic calibration...................................................................................80
10.2 Fuses .......................................................................................................80
10.3 Service .....................................................................................................80
10.4 Cleaning ...................................................................................................80
11 Instrument set and accessories..........................................................................81
OmegaPATPlus / BetaPATPlus General description
6
1 General description
OmegaPATPlus / BetaPATPlus is a portable test instrument intended for testing the
electrical safety of portable electrical equipment. The following tests can be performed:
Ì earth bond resistance,
Ì insulation resistance,
Ì substitute leakage current,
Ì differential leakage current,
Ì touch leakage current,
Ì functional test,
Ì IEC cord polarity test,
Ì portable RCD test
Ì flash test (MI 3305 – OmegaPATPlus only),
Ì TRMS leakage and load currents with current clamp.
Some instrument's highlights:
Ì large graphic LCD display with resolution of 240 × 128 dots, with back-light,
Ì over 6500 memory locations in data flash memory for autotest results,
Ì four communication ports (USB and RS232C) for communication with PC,
barcode reader or printers,
Ì soft touch keyboard with cursor keys,
Ì built in real time clock,
Ì fully compatible with new METREL PATLink PRO PCSW package,
Ì best suited for periodic testing,
Ì fast testing with barcode identification systems,
Ì test data can be uploaded from PC,
Ì comparisons between old and new test results can be performed on site,
Ì enables printing of test labels on site.
OmegaPATPlus / BetaPATPlus General description
7
1.1 Warnings
In order to reach high level of operator safety while carrying out various measurements
using OmegaPATPlus / BetaPATPlus instrument, as well as to keep the test equipment
undamaged, it is necessary to consider the following general warnings:
Ì Read this user manual carefully, otherwise use of the instrument may be
dangerous for the operator, for the instrument or for the equipment under
test!
Ì If the test equipment is used in manner not specified in this user manual
the protection provided by the equipment may be impaired!
Ì Use only correctly earthed mains outlets to supply the instrument!
Ì Do not use the instrument and accessories if any damage is noticed!
Ì In case a fuse has blown follow the instructions in this user manual to
replace it!
Ì Instrument servicing and calibration is allowed to be carried out only by a
competent authorized person!
Ì Use only standard or optional test accessory supplied by your distributor!
1.2 Warning markings on connector panel
Refer to chapter 2.1 Front panel.
1.3 Standards applied
The OmegaPATPlus / BetaPATPlus instrument has been manufactured and tested in
accordance with the following standards:
Safety:
Ì EN 61010-1
Ì EN 61010-31
Electromagnetic compatibility (emission and immunity):
Ì IEC 61326
Measurements in accordance with:
Ì British standard BS89
Ì German standards VDE 0701 and VDE 0702
OmegaPATPlus / BetaPATPlus Instrument description
8
2 Instrument description
2.1 Front panel
Front panel
Legend:
1..............Mains switch with indication lamp.
2..............Two T16 A / 250 V fuses for instrument protection.
3..............Mains supply cord.
4..............240 × 128 dots graphic matrix display with backlight.
5..............LN and PE sockets for testing the insulation resistance and substitute leakage
current of fixed installed appliances.
Warning! These sockets are intended only for the connection of
deenergized appliances.
6..............Flash test socket
7..............PRCD socket for testing portable residual current devices
Warning! This socket is intended only for connection of portable RCDs.
8..............IEC appliance connector for testing supply cords.
Warning! The connector input is only for testing purposes; do not
connect it to mains supply!
9..............Test probe (earth bond) connector, also used as an input in some class 2
measurements:
insulation resistance, substitute and touch leakage currents (reffered to as
socket S)
10............Test socket (115 V),
Warning! Dangerous voltage is present on the test socket during the
measurement. Maximum output current is 16 A, test only appliances
with maximum rated supply current not higher than 16 A!
11............Test socket (230 V).
Warning! Dangerous voltage is present on the test socket during the
measurement. Maximum output current is 16 A, test only appliances
with maximum rated supply current not higher than 16 A!
12............Cursor keys and ENTER key.
OmegaPATPlus / BetaPATPlus Instrument description
9
13............Alpha-numeric keyboard.
14............STOP key.
15............START key.
16............ESCAPE key.
17............Current clamp adapter input sockets.
Warning! Do not connect any voltage source on this input. It is intended
only for connection of current clamp with current output. Maximum
input current is 30 mA!
18............Function keys.
19............USB connector.
20............PC / printer connector.
21............Barcode reader connector.
22............Label printer connector on back side (support for PrintekMobile MtP300 /
MtP400 serial printer).
Safety pre-tests
Before performing a measurement, the instrument performs a series of pre-tests to
ensure safety and to prevent any damage. These safety pre-tests check for:
Ì any external voltage against earth on test socket,
Ì excessively high leakage current,
Ì excessively high touch leakage current,
Ì short circuit or too low resistance between L and N on appliance,
Ì correctly applied mains voltage to the test socket.
If pre-tests fail, an appropriate warning message will be displayed.
The warnings and measures that have to be taken are described in chapter 2.2
Meaning of symbols and messages on the instrument display.
2.2 Meaning of symbols and messages on the instrument
display
Mains voltage is not
correct or PE is not
connected.
Check mains voltage
and PE connection!
Improper supply voltage warning. Possible causes:
Ì no earth connection or other wiring problem on
supply socket.
Ì incorrect mains voltage.
Determine and eliminate the problem before
proceeding!
OmegaPATPlus / BetaPATPlus Instrument description
10
L and N are crossed.
Press START key to
continue.
The instrument works normally also in the case when L
and N are interchanged. Check polarity of line and neutral
wires on test socket.
Warning!
Mains voltage is not correct
or PE not connected or 110 V
centre tapped / IT system.
Press START key to continue
if 110 V centre tapped / IT
system.
Improper supply voltage warning. Possible causes:
Ì no earth connection or other wiring problem on
supply socket,
Ì instrument connected to 110 V centre tapped or IT
earthing supply system.
Press the START key to continue if instrument is
connected to 110 V centre tapped or IT supply system.
Warning!
Instrument is connected to
the IT earthing system or PE
not connected.
Press START key to
continue.
Supply voltage warning. Possible causes:
Ì no earth connection,
Ì instrument connected to IT earthing system.
Press the START key to continue if instrument is
connected to IT earthing system.
Resistance L – N too
high (>30 kΩ).
Check fuse and switch.
Are you sure to
proceed? (Y/N)
An excessively high resistance was measured in the fuse
pre-test. Indication means that appliance has too low
consumption or is:
Ì not connected,
Ì switched off,
Ì contains a fuse that has blown.
Select YES or NO with Y or N key.
Resistance L – N low.
Are you sure to
proceed? (Y/N)
A low resistance of the appliance’ supply input was
measured in the pre-test. This means that it is very likely
that an excessively high current will flow after applying
power to the tested appliance. If the high current is only of
short duration (caused by a short inrush current) the test
can be performed, otherwise not.
Select YES or NO with Y or N key.
OmegaPATPlus / BetaPATPlus Instrument description
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Resistance L – N too
low.
Are you sure to
proceed? (Y/N)
An extremely low resistance of the appliance’ supply input
was measured in the pre-test. It is likely that fuses will
blow after applying power to the tested appliance. If the
too high current is only of short duration (caused by a
short inrush current) the test can be performed otherwise it
must be stopped.
Select YES or NO with Y or N key.
It is recommended to additionally check the appliance
before proceeding with the test!
Leakage LN-PE high.
Are you sure to
proceed? (Y/N)
Dangerous leakage current (higher than 3.5 mA) will flow if
power would be connected to the tested appliance.
Select YES or NO with Y or N key.
Proceed with testing only if all safety measures have
been taken. It is recommended to perform a thorough
earth bond test on the PE of the appliance before
proceeding with the test.
Leakage LN-PE too
high.
Are you sure to
proceed? (Y/N)
Dangerous leakage current (higher than 20 mA) will flow if
power would be connected to the tested appliance.
Select YES or NO with Y or N key.
Proceed with testing only if all safety measures have
been taken. It is recommended to perform a thorough
earth bond test on the PE of the appliance before
proceeding with the test.
Leakage LN-PE or EB-
PE too high!
Are you sure to
proceed? (Y/N)
Dangerous leakage current (higher than 20 mA) will flow if
power would be connected to the tested appliance.
Select YES or NO with Y or N key.
Proceed with testing only if all safety measures have
been taken. It is recommended to perform a thorough
earth bond test on the PE of the appliance before
proceeding with the test.
Measurement aborted!
Too high leakage
current.
An exceptionally high leakage current (higher than about 5
mA) was measured through PE test terminal or PE socket
during the pre-test or test.
OmegaPATPlus / BetaPATPlus Instrument description
12
Leakage test probe-PE
too high!
An exceptionally high leakage current (higher than about 5
mA) was measured through S test terminal during the pretest.
External voltage on test
socket too high!
DANGER!
Voltage on test socket or LN/PE terminals is higher than
20 V (AC or DC) approximately!
Disconnect the appliance under test from the instrument
immediately and determine why external voltage was
detected!
External voltage on test
probe too high!
DANGER!
Voltage on test probe (S) is higher than 25 V (AC or DC)
approximately!
Disconnect the test probe from the appliance and
determine why external voltage was detected!
Test was skipped for
safety!
Instrument skipped the required test because of a failed
previous test.
Instrument overheated!
Measurement is
aborted!
Temperature of internal components of the instrument
reached their top limit. Measurement is prohibited until the
internal temperature has reduced.
OmegaPATPlus / BetaPATPlus Instrument description
13
Warning!
More than 80 % of
memory is occupated.
Stored data should be
downloaded to PC.
Instrument memory is almost full. Download stored results
to PC.
Warning!
Calibration has been
expired.
Recalibration of the instrument is required. Contact your
dealer.
Connect earth bond test probe in this test.
Remove the earth bond clip, especially if it is connected to
any part that will begin to rotate or move when power is
applied.
Warning!
A high voltage is / will be present on the instrument output!
(Insulation test voltage, flash test voltage (MI 3305 only) or
mains voltage).
The appliance under test should be switched on (to ensure
that the complete circuit is tested).
Connect the lead to be tested to the IEC plug.
Connect current clamp adapter in this test.
Test passed.
OmegaPATPlus / BetaPATPlus Instrument description
14
Test failed.
Some tests in the autotest sequence were skipped, but all
performed tests passed.
2.3 Dual voltage operation (UK model only)
The OmegaPATPlus / BetaPATPlus instrument will accept either a 115 V or 230 V, 50
or 60 Hz mains voltage input.
Note:
Ì The instrument will conduct a load and leakage current tests at the power up
mains voltage. Therefore, to perform a differential leakage test and touch
leakage test on 115 V appliance, the instrument must be powered up from 115 V
mains supply. When instrument is powered up from 230 V, only the 230 V test
socket is energized at 230 V during the differential leakage and touch leakage
measurements.
OmegaPATPlus / BetaPATPlus Technical specifications
15
3 Technical specifications
3.1 Earth bond resistance
Earth bond resistance readout (10 A and 25 A)
Range Resolution Accuracy
0.00 Ω ÷ 1.99 Ω 0.01 Ω ±(5 % of reading + 3 digits)
2.00 Ω ÷ 19.99 Ω 0.01 Ω ±10 %
Earth bond resistance readout (200 mA)
Range Resolution Accuracy
0.00 Ω ÷ 1.99 Ω 0.01 Ω ±(5 % of reading + 3 digits)
2.00 Ω ÷ 9.99 Ω 0.01 Ω ± 10 %
10.0 Ω ÷ 19.9 Ω 0.1 Ω ± 10 %
Test currents............. 25 A, 10 A (± 5 %) into 100 mΩ at mains voltage of 230 V AC
200 mA into 2 Ω at mains voltage of 230 V AC
Open circuit voltage .. < 6 V AC at mains voltage of 230 V AC
Pass levels ............... 0.01 Ω ÷ 0.09 Ω, 0.10 Ω ÷ 0.90 Ω, 1.00 Ω ÷ 9.00 Ω
Test duration............. 2 s, 3 s, 5 s, 10 s, 30 s
Output....................... Class 1: S test probe connector – test socket (PE)
Test method.............. 4-wire measurement, floating to earth
3.2 Insulation resistance
Insulation resistance readout
Range Resolution Accuracy
0.000 MΩ ÷ 0.500 MΩ 0.001 MΩ ±(10 % of reading + 5 digits)
0.501 MΩ ÷ 1.999 MΩ 0.001 MΩ
2.00 MΩ ÷ 19.99 MΩ 0.01 MΩ
20.0 MΩ ÷ 199.9 MΩ 0.1 MΩ
±(5 % of reading + 3 digits)
Nominal voltages ...... 250 V DC, 500 V DC (- 0 %, + 10 %)
Measuring current..... min. 1 mA at 250 kΩ (250 V), 500 kΩ (500 V)
Short circuit current... max. 2.0 mA
Pass levels ............... 0.01 MΩ, 0.10 MΩ, 0.50 MΩ, 1.00 MΩ, 2.00 MΩ, 4.00 MΩ, 7.00
MΩ, 10.0 MΩ
Test duration............. 2 s, 3 s, 5 s, 10 s, 30 s
Output....................... Class 1: test socket
Class 2: test socket (L+N) – S test probe connector
Test method.............. floating to earth
Auto discharge after test.
OmegaPATPlus / BetaPATPlus Technical specifications
16
3.3 Substitute leakage current
Substitute leakage current readout
Range Resolution Accuracy
0.00 mA ÷ 19.99 mA
0.01 mA
±(5 % of reading + 5 digits)
Open circuit voltage .. < 50 V AC at mains voltage of 230 V AC
Short circuit current... < 40 mA
Pass levels ............... 0.25 mA, 0.50 mA, 0.75 mA, 1.00 mA, 1.50 mA, 2.25 mA, 3.50
mA, 7.00 mA, 9.90 mA, 15.00 mA
Test duration............. 2 s, 3 s, 5 s, 10 s, 30 s
Output....................... Class 1: test socket
Class 2: test socket (L+N) – S test probe connector
Test method.............. floating to earth
Displayed current is calculated to appliance mains supply voltage.
3.4 Leakage current and apparent power
Differential leakage current readout
Range Resolution Accuracy
0.00 mA ÷ 9.99 mA
0.01 mA
±(5 % of reading + 5 digits)
Pass levels ............... 0.25 mA, 0.50 mA, 0.75 mA, 1.00 mA, 1.50 mA, 2.25 mA,
2.50 mA, 3.00 mA, 3.50 mA, 5.00 mA, 9.90 mA
Test duration............. 2 s, 3 s, 5 s, 10 s, 30 s, 60 s, 120 s, 180 s, none
Output....................... Class 1: test socket
Test method.............. Current measurement circuit according to VDE 0404-3, Appendix
A, Figure A1, IEC 60990 Figure F2
Apparent power readout
Range Resolution Accuracy
0.00 kVA ÷ 4.00 kVA
0.01 kVA
±(5 % of reading + 3 digits)
Output....................... test socket
OmegaPATPlus / BetaPATPlus Technical specifications
17
3.5 Touch leakage current
Touch leakage current readout
Range Resolution Accuracy
0.00 mA ÷ 3.99 mA
0.01 mA
±(10 % of reading + 5 digits)
Pass levels ............... 0.25 mA, 0.50 mA, 1.00 mA, 3.50 mA
Test duration............. 2 s, 3 s, 5 s, 10 s, 30 s, 60 s, 120 s, 180 s, none
Output....................... Class 1, Class 2: test socket – S test probe connector
Test method.............. Current measurement circuit according to VDE 0404-3, Appendix
A, Figure A1, IEC 60990 Figure F2
3.6 Polarity test
Test voltage .............. < 50 V AC
Detects ..................... Pass, L-open, N-open, PE-open, L-N crossed, L-PE crossed, N-
PE crossed, L-N shorted, L-PE shorted, N-PE shorted, multiple
faults
Output....................... test socket – IEC socket
3.7 Clamp current
True RMS current readout using 1000:1 current clamp
Range Resolution Accuracy*)
0.00 mA ÷ 9.99 mA
0.01 mA
±(5 % of reading + 10
digits)
10.0 mA ÷ 99.9 mA
0.1 mA
±(5 % of reading + 5 digits)
100 mA ÷ 999 mA
1 mA
±(5 % of reading + 5 digits)
1.00 A ÷ 9.99 A
0.01 A
±(5 % of reading + 5 digits)
10.0 A ÷ 24.9 A
0.1 A
±(5 % of reading + 5 digits)
*
)
Consider accuracy of current transformer.
Pass levels ............... 0.25 mA, 0.50 mA, 0.75 mA, 1.00 mA, 1.50 mA, 2.25 mA,
2.50 mA, 3.00 mA, 3.50 mA, 5.00 mA, 9.90 mA, none
Test duration............. 2 s, 3 s, 5 s, 10 s, 30 s, 60 s, 120 s, 180 s
Input.......................... current clamp terminals
OmegaPATPlus / BetaPATPlus Technical specifications
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3.8 Trip-out time of portable RCD
Portable RCD trip-out time readout
Range Resolution Accuracy
0 ms ÷ 1999 ms (½×IΔN)
1 ms
0 ms ÷ 300 ms (IΔN)
1 ms
0 ms ÷ 40 ms (5×IΔN)
1 ms
±3 ms
Test currents (IΔN) ............. 10 mA, 15 mA, 30 mA
Test current multipliers ..... ½×IΔN, 1×IΔN, 5×IΔN
Test modes....................... single, autotest
Output............................... PRCD probe connector – test socket
Trip out times according to EN 61008 / EN 61009 (Aus/NZ models)
½×I
ΔN
*)
I
ΔN
5×IΔN
tΔ > 300 ms tΔ < 200 ms tΔ < 40 ms
Trip out times according BS 7671 (UK models)
½×I
ΔN
*)
I
ΔN
5×IΔN
tΔ > 1999 ms tΔ < 200 ms tΔ < 40 ms
*)
The ½×IΔN current does not trip out the RCD.
3.9 Flash test (MI 3305 – OmegaPATPlus only)
Flash current readout
Range Resolution Accuracy
0.00 - 2.50 mA 0.01 mA
±(5 % of reading + 5 digit)
Test voltage ...................... 1500 V AC, 3000 V AC
Output resistance.............. 480 kΩ@1500 V, 960 kΩ@3000 V
Limits ................................ 1.00 mA, 1.50 mA, 2.00 mA, 2.25 mA
Timer ................................ 2 s, 3 s, 5 s, 10 s, 30 s
Output............................... Class 1: test socket
Class 2: test socket (L+N) – flash probe connector
3.10 General data
Rated supply voltage .........................230 VAC / 115 VAC (±10 %, 50 or 60 Hz)
Max. power consumption.................. 150 VA (earth bond 25 A short-circuit, without
tested appliance)
Maximum appliance current...............16 A
Overvoltage category.........................Cat II / 300 V
Protection classification .....................I
Pollution degree.................................2
OmegaPATPlus / BetaPATPlus Technical specifications
19
Degree of protection ..........................IP 50 (closed and locked cover)
Case ..................................................shock proof plastic / portable
Display...............................................240*128 dots graphic matrix display with backlight
Dimensions (w×h×d)..........................33.5 cm × 16.0 cm × 33.5 cm
Weight (with standard accessories) ...MI 3305 OmegaPAT Plus: 8.95 kg
MI 3304 BetaPAT Plus: 7.85 kg
Memory..............................................6500 memory locations
RS232 interfaces .............................. 1200 bps ÷ 115200 bps, 1 start bit, 8 data bits,
1 stop bit
RS232 connectors .............................9-pin subminiature type D, female
Label printer connector.......................6-pin DIN connector, female
USB interface ....................................1200 bps ÷ 115200 bps
USB connector...................................type B
Reference conditions
Reference temperature range............5 °C ÷ 35 °C
Reference humidity range..................35 % ÷ 65 % RH
Operation conditions
Working temperature range ...............-10 °C ÷ +50 °C
Maximum relative humidity ................85 % RH (0 °C ÷ 40 °C), non-condensing
Storage conditions
Temperature range ............................-10 °C ÷ +60 °C
Maximum relative humidity ................90 % RH (-10 °C ÷ +40 °C)
80 % RH (40 °C ÷ 60 °C)
Accuracies apply for 1 year in reference conditions. Temperature coefficient outside
these limits is 0.2 % of measured value per °C, and 1 digit.
Fuses
Instrument protection .........................2 x T16 A / 250 V, 6.3 × 32 mm
Protection pre-tests
Ì External voltage between L and PE, N and PE or L and N (DC and AC)
Ì Excessive leakage between L and PE or N and PE
Ì Short circuit or very low resistance between L and N
Connectivity (fuse) pre-test
Ì Appliance not switched on or too high resistance between L and N
Maximum resistance for connectivity pre-test.................................. 30 kΩ
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4 Main menu and test modes
The OmegaPATPlus / BetaPATPlus instrument has a user-friendly manipulation. By
pressing only a few keys most of the actions can be done. The menu tree of the
instrument has been designed to be simple to understand and easy to operate.
The instrument can test appliances in four different modes:
Ì single test mode,
Ì three autotest modes.
After the instrument is switched on, the last menu used will be displayed.
4.1 Help menus
The measurement help menus are available in single and autotest modes. Help menu
contain schematic diagrams for illustration of proper connection of appliance under test
to the PAT testing instrument.
4.1.1 How to enter help menu
After entering the selected measurement and before pressing START, press the F2
function key in order to view help menu.
Example of help menus
Use F1 and F2 function keys to see the next / previous page (if available).
Press ESC key to return to the last test / measurement menu.
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4.2 Main menu
From the Main menu all the instrument functions can be selected.
Main menu
Select the function you want to perform by using ¿ and À cursor keys and press
ENTER key to confirm. To return to the Main menu press the ESC key.
Note:
Ì The ESC key has need to be pressed more than once to return to Main menu
from any submenu or selected function.
4.3 Autotest shortcut menu
In this menu there are all the most popular pre-defined autotest sequences that can be
selected and performed (shown in appendix B and C of this manual). When an autotest
sequence has been completed, the measurement results can be stored into instrument
flash memory or sent to the printer or PC for further processing.
Aus/NZ model
UK model
Autotest shortcut menu examples
See chapter
7 Autotest sequences for detailed description of this test mode.
4.4 Autotest custom menu
It might happen that none of the preset autotest shortcut sequences corresponds with a
particular appliance’ test requirements. For this reason, an autotest procedure can be
created in the autotest custom menu. In this menu the autotest results can be stored
into the instrument flash memory or sent to the PC for further purposes (as well test
reports can be printed out, etc.).
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Autotest custom menu
See chapter 7 Autotest sequences for detailed description about this test mode.
4.5 Project autotests menu
The Project autotest is a tool that simplifies and speeds up repeated (periodic) testing of
appliances. The main idea is to re-use known and stored data about the appliance
under test.
Aus/NZ model
UK model
Project autotest menu examples
See chapter
7.3 Project autotests for detailed description about this autotest mode.
4.6 Single test menu
In single test menu individual tests can be performed. Note: that measurement results
performed in this mode cannot be stored.
Single test menu
See chapter
5 Single test mode for detailed description about the single test mode.
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4.7 User / appliance data menu
In this menu lists of user and appliance data default names can be edited. An
alternative is to upload the lists from PC.
Aus/ NZ model
UK model
Users / appliance data main menu
See chapter 9.1 User / appliance data menu for detailed description about this
functionality.
4.8 Recall / delete / send results menu
Manipulation with stored data is allowed in this menu. Stored results can be recalled
according to appliance name and date, deleted or send to PC or printers.
Recall results menu
See chapters 8.2 Recalling results, 8.3 Deleting results and 8.4 Downloading and
printing results for more information.
4.9 Data upload / download menu
In this menu it is possible to upload different data from PC to the instrument:
Ì stored test results and data (results, parameters, notes)
Ì list of default appliance and test site names.
The data to be uploaded are selected in the PCSW package.
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Upload of test data menu
See chapter 9.2 Data upload / download for detailed description about
uploading/downloading data from PC.
4.10 Setup menu
In this menu general instrument parameters can be set.
Setup menu
See chapter 9.3 Setup menu for detailed description.
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5 Single test mode
In single test mode, individual tests can be performed. This is especially helpful when
the test engineer suspects that one or more faults are present in the appliance under
test.
Note:
Ì Test results cannot be saved in this mode!
5.1 How to perform measurements in single test mode
Select Single test in Main menu by using ¿ and À cursor keys and press ENTER key
to confirm the selection. The Single test menu is displayed.
Single test menu
By using ¿ and À cursor keys select the measurement you want to perform and press
ENTER key to confirm the selection. To return to the Single test menu press ESC key.
Selected test measurement parameters are detailed in the top right corner of the
display. These parameters can be edited by pressing the F1 button. In general the
following parameters can be set:
Ì output test voltage/current,
Ì pass level,
Ì measurement duration.
Once the test parameters have been set, the settings are saved until new changes are
made or the instrument is reset to the default configuration.
Note:
Ì To keep new settings in the case of a power failure, return to main menu or press
SAVE before turning the power off.
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6 Measurements
6.1 Earth bond resistance
This test ensures that the connections between the protective conductor terminal in the
mains plug of the appliance and any accessible conductive parts of the appliance (metal
housing) are satisfactory and of sufficiently low resistance. This test has to be
performed on Class 1 (earthed) appliances.
A high current is normally used to check that the connections will operate correctly
under fault conditions. In some sensitive electronic equipment such as computers and
other information technology equipment that contain a functional earthing arrangement,
a high current test can damage the equipment. In this situation, a 200 mA test current is
used to prevent damage to the internal components of the appliance.
The instrument measures the resistance between test socket‘s PE terminal and earth
bond clip (connected to socket S of the appliance).
Measurement of earth bond resistance of class I appliance
6.1.1 How to perform earth bond resistance measurement
From the Main menu, select Single test and then select Earth bond by using ¿ and À
cursor keys and press ENTER key to confirm. Earth bond menu is displayed.
Earth bond menu
Measurement parameters are detailed in the top right corner of the display. The
following parameters can be adjusted:
Ì nominal test current,
Ì high limit resistance value,
Ì measurement duration.
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To edit parameters, press the F1 function key first. Use ¿ and À cursor keys to select
the parameter you want to edit. By using ½ and ¾ cursor keys adjust the selected
parameter. Press F1 function key again to confirm settings.
Once the settings have been set, press the START key to perform measurement.
The measurement can be aborted by pressing STOP key at any time. The actual result
is shown on the display during measurement. After the measurement time period has
elapsed the last measured value is displayed, and PASS or FAIL indication appears on
the display (based on the high resistance limit defined in the settings).
Examples of earth bond resistance measurement results
Press the START key to repeat the test or press ESC key to return to the Single test
menu.
Note:
Ì Consider any displayed warning before starting measurement!
6.2 Insulation resistance
The insulation resistance test checks the resistance between live conductors and
earthed (or isolated) accessible metal parts of an appliance. This test can disclose faults
caused by pollution, moisture, deterioration of insulation metal etc. The capacitive part
of leakage currents is not measured because of the DC test voltage.
6.2.1 Insulation resistance on class I appliances
The instrument measures the insulation resistance between:
Ì (L+N) and PE of the relevant test socket,
Ì LN and PE test sockets.
Measurement of insulation resistance of class I appliance
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Measurement of insulation resistance of fixed installed appliances of Class I
6.2.2 Insulation resistance on class II appliances
The instrument measures the insulation resistance between:
Ì (L+N) of the relevant test socket and S test terminals,
Ì LN and S test sockets.
Measurement of insulation resistance of class II appliance
Measurement of insulation resistance of accessible isolated conductive parts of fixed
installed appliances
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