Gossen MetraWatt AT3-III E Operating Instructions Manual
Operating Instructions
AT3-III E Test Adapter
For active and passive Testing Single and 3-Phase
Electric Devices and Extension Cables in Combination
with SECUTEST.../SECULIFE ST Test Instruments
as well as SECUTEST BASE(10) and PRO (Feature I01)
3-349-155-37
13/6.16
2 GMC-I Messtechnik GmbH
Device Plugs and Outlets
1 CEE outlet
3P+N+PE, 32 A, 400 V
2 CEE outlet
3P+N+PE, 16 A, 400 V
3 Earthing contact outlet
1P+N+PE, 16 A, 250 V
4 Device outlet for cable testing
1P+N+PE, 10 A, 250 V
5 CEE plug for cable testing
3P+N+PE, 32 A, 400 V
6 CEE plug for cable testing
3P+N+PE, 16 A, 400 V
7 Earthing contact plug for cable testing
1P+N+PE, 16 A, 250 V
8 Device plug for cable testing
1P+N+PE 10 A 250 V
Indicator Displays
9 Mains indicator lamps for L1, L2 and L3
10 Function LED
Self-Test
11 Test key for triggering I
Δn
(IΔn = residual current)
Connectors for SECUTEST.../SECULIFE ST (as of version
3.1) Test Instrument
12 Earthing contact outlet for power supply to SECUTEST.../
SECULIFE ST test instruments
13 Earthing contact plug with cable, for insertion into the test
socket at SECUTEST.../SECULIFE ST test instruments
14
SECUTEST S2N+(10)(w)/SIII+/SECULIFE ST
port:
for insertion into sockets 2 and 3 at the test instrument
SECUTEST PRO (or feature I01) port: for insertion into
the sockets
V and COM
at the test instrument
15 Connector sockets for probe cable of the SECUTEST.../
SECULIFE ST test instrument (for testing cables only)
AT3-III E Power Supply
16 Via connector cable with CEE plug
3P+N+PE, 16 A
SECUTEST.../SECULIFE ST series test instruments are
not included in the scope of delivery.
Test Adapter AT3-III E
L3
L2
L1
!
1
2
3
4
5
6
12
7
10
11
9
16
15
15
15
8
13
SECUTEST
14
15
GMC-I Messtechnik GmbH 3
Table of Contents
Page
1 Applications ...............................................3
2 Safety Precautions .....................................4
3 Connecting the Test Adapter to the Mains 5
4 Connecting a Device Under Test
to the Test Adapter ....................................5
5 Testing Devices .........................................5
5.1 Measuring Protective Conductor Resistance ...5
5.2 Measuring Insulation Resistance and Equivalent
Leakage Current ..........................................5
5.3 Measuring Protective Conductor Resistance with
the Residual Current Method (except for
SECUTEST BASE(10)) ...................................5
5.4 Testing of Differential Current
during Automatic Testing per Test Standard ..7
5.5 High-Voltage Test ........................................7
6 Testing Extension Cables ...........................7
6.1 Measuring Protective Conductor Resistance ...7
6.2 Measuring Insulation Resistance ...................7
6.3 Testing for Short-Circuits, Interruptions and
Reversed Conductors ...................................8
7 Self-Test ..................................................10
8 Technical Data .........................................10
9 Maintenance ............................................11
10 Repair and Replacement Parts Service,
Calibration Center and Rental Instrument
Service .....................................................11
11 Product Support .......................................11
1 Applications
The portable test adapter, which can also be
permanently mounted with the wall bracket, is
used for measuring and testing single and
3-phase electrical devices and extension cables in
combination with SECUTEST.../SECULIFE ST (as
of version 3.1) test instrument.
Suitable instruments are identified in the following
pages with the following abbreviated designation:
SECUTEST.../SECULIFE ST.
Testing must be performed by a qualified
electrician with an appropriate test instrument
after repair or modification, and is also required for
periodic testing per DIN VDE 0105/0701-0702.
According to these regulations, testing must be
performed for protective conductor resistance,
insulation resistance, equivalent leakage current,
residual current and contact current, as well as for
the absence of voltage depending upon the type
of device under test.
The test adapter, in combination with the SECUTEST.../
SECULIFE ST test instrument, allows for
– the passive testing:
• of protective conductor resistance
• of insulation resistance
• of protective conductor current by means of
equivalent leakage current method
• of dielectric strength (HV test up to 1.5 kV)
1)
• at extension cables:
– testing for conductor short-circuiting,
– testing for conductor interruption
and aditionally at 3-phase extension cables:
– testing for conductor reversal on L1, L2
and L3
for the determination of clockwise rotation.
• with protection by means of electronic residual current monitoring with mains shutdown
at DUTs with residual current of more than
20 mA and visual error messages
– the active testing: (nominal current 16 A –
maximum 20 A current consumption by DUT)
• of protective conductor current
1 3
– by means of the differential current method
(requires voltage measurement sockets at
SECUTEST.../SECULIFE ST
2
)
– by means of direct method (requires direct
measurement of protective conductor
current at SECUTEST.../SECULIFE ST)
• of contact current
3
1
only if the utilized SECUTEST.../SECULIFE ST is
capable of performing this measurement
2
not with SECUTEST BASE(10), but with
SECUTEST PRO and/or Feature I01
3
Please note that the pole reversal function is not active
with the applied test instrument if you use the AT3-IIIE
adapter for the testing of single-phase test objects
(socket 3 / earthing contact plug). In this case, all
leakage current measurements must be performed
manually in both pole directions.
Measurement results are displayed at the
SECUTEST.../SECULIFE ST test instrument.
Note!
The AT3-III E test adapter is equipped with
electronic error monitoring which
disconnects the device under test from the
mains in the event of fault currents of greater
than 18 mA.
4 GMC-I Messtechnik GmbH
2 Safety Precautions
The test adapter has been manufactured and
tested in accordance with the following
regulations:
IEC 61010-1/DIN EN 61010-1/VDE 0411-1
“Regulations for electronic testers and controllers,
part 1: Safety measures for electrical measuring
instruments”
DIN VDE 0404 “Devices for technical safety
testing of electrical equipment, parts 1 and 2.”
EN 61326-1 product standard EMC requirements.
Safety is only assured for the user and the test
adapter when used for its intended purpose in
combination with SECUTEST.../SECULIFE ST test
instruments.
In order to maintain flawless technical safety
conditions, and to assure safe use, it is imperative
that you read these operating instructions
thoroughly and carefully before placing your test
adapter into service, and that you follow all
instructions contained herein.
Due to the fact that all tests performed with the AT3III E must be executed in combination with a
SECUTEST.../SECULIFE ST test instrument, you must
also read the safety precautions and liability limitations
included in the operating instructions for this
instrument.
Observe the following safety precautions:
Attention!
!
If the red LED (10) remains lit even after
the AT3-III E has been disconnected from
the mains and connected once again, the
test adapter is defective.
If this is the case,
the AT3-III E must be removed from service
and repaired before it is used again.
• In order to assure compliance with technical
safety requirements, the AT3-I I I E test adapter
should only be repaired by the manufacturer.
• The AT3-III E must be disconnected from the
mains and from the SECUTEST.../
SECULIFE ST test instrument before it is
opened.
Measurements within electrical systems are prohibited!
• The test adapter’s 16 A CEE 3P+N+PE (16)
plug may only be connected to 230/400 V
50 Hz mains power. In order to avoid
undesired shutdown of defective devices
under test, the electrical circuit for the device
under test should be separately fused.
• Before connecting the AT3-III E to the mains,
the SECUTEST.../SECULIFE ST test
instrument must first be connected to the
AT3-III E.
Attention!
!
Tests during which mains power is
applied may only be selected with the
function selector switch at the
SECUTEST.../SECULIFE ST test
instrument after safety class I devices
under test have passed the protective
conductor test.
If the protective conductor is defective
(interruptions / reversed conductors), line
voltage may be present at the housing of
a defective device under test, at the
earthing contacts of the test plugs (4 – 7)
and at the safety socket (15)!
•For REASONS OF SAFETY, the device under test
must be turned off before switching to
“MAINS” so that dangerous devices under
test (e.g. a circular saw) can only be switched
on intentionally.
• Be prepared for the occurrence of
unexpected voltages at devices under test
(e.g. due to charged capacitors).
• Before connecting the device under test to
the test adapter, subject it to a thorough
VISUAL INSPECTION first. Damaged devices
under test must be repaired prior to testing.
• Only extension cables which have been
plugged into the test outlets (1 – 4) at the test
adapter may be connected to the device
plugs (4 – 7) at the test adapter.
• Due to test adapter design in accordance with
DIN VDE 0404, the “PE” contacts at the
outlets (1 – 4) are only connected to the mains
protective conductor when the SECUTEST.../
SECULIFE ST test instrument has been set for
testing with mains power.
• If the test adapter and/or its connector cables
demonstrate visible damage, no longer
function, have been stored for a lengthy
period of time under unfavorable conditions or
have been subject to excessive stress during
transport, it must be assumed that hazardfree operation is no longer possible. Remove
the AT3-III E from service and secure it
against inadvertent use in such cases.
Opening of Equipment / Repair
The equipment may be opened only by authorized
service personnel to ensure the safe and correct
operation of the equipment and to keep the
warranty valid.
Even original spare parts may be installed only by
authorized service personnel.
In case the equipment was opened by unauthorized
personnel, no warranty regarding personal safety,
measurement accuracy, conformity with applicable
Loading...