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4GMC-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 AT3-
III 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-III 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 hazard-
free 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
… 4 …

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