Datasheet

AT3-III E Test Adapter
for Active and Passive Testing of Single and 3-Phase
Electric Devices and Extension Cables in Combination with
SECUTEST.../SECULIFE ST Test Instruments
3-349-156-03
8/4.15
GMC-I Messtechnik GmbH
Additional Features
• Tests in accordance with the menu-controlled test sequences
of the SECUTEST... testers, fully automatic or manual.
• Transmission of test results to the test instruments and evalu-
ation with the testers of the SECUTEST... series.
• Test adapter function EL1 (accessory for SECUTEST testers)
for testing single phase extension cables is integrated as a
module in the AT3-III.
Applications
The test adapter is used for measuring and testing single and 3-
phase electrical devices and extension cables in combination with
SECUTEST... test instruments. These tests must be performed by
a qualified electrician with an appropriate test instrument after
repair or modification, and are also required for periodic testing.
Depending upon the type of device under test and how it is used,
testing of protective conductor resistance, insulation resistance
and equivalent leakage current, as well as residual and contact
current is required by these regulations.
Testing per EN 60601-1 is only possible to a certain extent.
The test adapter, in combination with the SECUTEST... 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 moni-
toring 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
– by means of the differential current method
(requires voltage measurement sockets at SECUTEST...
2
)
– by means of direct method (requires direct measurement
of protective conductor current at SECUTEST...)
• of contact current
1
only if the utilized SECUTEST... is capable of performing this measurement
2
not with SECUTEST BASE(10), but with SECUTEST PRO and/or Feature I01
• Connection of single and 3-phase devices and extension cables
without reversing polarity at devices under test in operating
modes with and without mains power via the test sockets and
the test plug
• Extensive equipment with plug connectors up to CEE 32
• Function test with nominal current of up to 16/20 A
• Displays: residual current shutdown LED red
mains operation Lamps L1/L2/L3 yellow
• Mains connection 230/400 V 50 Hz
via mains plug CEE 3P+N+PE 16 A mains outlet
• Safety provided by electronic monitoring of residual current
with DUT shutdown if residual current exceeds 20 mA
and optical error indication.
Trip control with “residual current tripping” test key.
• Prevention of short-circuits
and blown mains fuses during testing of defective single and
3-phase extension cables.
• Compact and robust aluminum frame case, provided with a lock