Gossen Metrawatt VL2 E Test Adapter Operating Instructions

Operating Instructions

Attention!

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Note

Attention!

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(1) (2) (3)

(12)

(4)

(10)(9)(8)

(6)

(5)

(11)

(7)

VL2 E Test Adapter

For Testing Devices and Cables
in Combination with DIN VDE 0701-0702 Test Instruments

• In order to assure compliance with technical safety requirements, the
test adapter may only be repaired by a qualified electrician, who is
preferably employed by the manufacturer.

• If the test adapter and/or its connector cables demonstrate visible
damage, no longer function or have been stored for a lengthy period
of time under unfavorable conditions, it must be assumed that
hazard-free operation is no longer possible. Remove the test adapter
from service and secure it against inadvertent use.

2 Applications

The test adapter is intended for the performance of measurements and
testing at electrical devices and extension cables with CEE plug
connectors in combination with test instruments in accordance with the
following standards:
DIN VDE 0701-0702:2008 (testing after repair and for periodic testing)

3-349-242-15

7/11.12

(1) Surface mounted test plug: CEE 3P+N+PE 32 A 400 V
(2) Surface mounted test plug: CEE 3P+N+PE 16 A 400 V
(3) Surface mounted test plug: CEE 1P+N+PE 16 A 230 V
(4) Surface mounted inlet test plug: 1P+N+PE 16 A 230 V
(5) Connector socket for probe cable from the DIN VDE test instrument,

for testing cables only
(6) Surface mounted earth contact test outlet: 1P+N+PE 16 A 230 V
(7) Earth contact connector cable for connection to test sockets at

DIN VDE test instruments
(8) Surface mounted test outlet: CEE 3P+N+PE 32 A 400 V
(9) Surface mounted test outlet: CEE 3P+N+PE 16 A 400 V

(10) Surface mounted test outlet: CEE 1P+N+PE 16 A 230 V
(11) Rotary selector switch for cable function tests
(12) Surface mounted earth contact test plug: 1P+N+PE 16A 230 V

1 Safety Precautions

The test adapter has been manufactured and tested in accordance with
the following regulation:
DIN VDE 0411/IEC 348

“Regulations for electronic testers and controllers,
part 1: safety measures for electronic measuring instruments”

Safety is only assured for the user and the test adapter when used for its
intended purpose in combination with DIN/VDE 0701-0702 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 the test adapter into
service, and that you follow all instructions contained herein.

• Measurements within electrical systems are prohibited!

The VL2 E test adapter may only be connected via its cable (7) to the so­cket of an external DIN VDE 0701-0702 test instrument for tests without
line voltage. If it is connected, for example, to a test panel with a „VDE­MAINS“ switch-over, the switch must be set to the „VDE“ position, other­wise the RCCB of the supplying system might trigger.

• 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
at the test adapter may be connected to the surface mount plugs on
the test adapter for testing.

3 Connecting the Test Adapter to a DIN VDE 0701-0702 Test Instrument

➭ The test adapter’s earth contact plug may only be plugged into the

earth contact outlet at a DIN VDE 0701-0702 test instrument which is
identified as the test socket.

Testing Extension Cables

➭ Additionally plug the test instrument’s probe into the SL socket (5).

4 Connecting a Device Under Test to the Test Adapter

After the visual inspection has been passed and before plugging the
device under test into the appropriate connectors, all functions must be
activated, making sure, for example, that thermostat contacts are closed
etc. Always measure protective conductor resistance first for safety class I
devices under test, because the measurement of insulation resistance
and equivalent leakage current is not possible without a properly
functioning protective conductor.

This measurement is of special importance for function testing as well,
because a defective or reversed protective conductor may represent a
hazard for the user!

5 Testing Devices

The following tests in accordance with DIN VDE must be performed in
consideration of the operating instructions for the utilized test instrument.

Automatic test sequences in combination with test adapter VL2 E
are only possible with SECUTEST S2 N+, SECUSTAR FM
or SECULIFE SB

5.1 Measuring Protective Conductor Resistance

➭ When testing devices: Connect the probe cable to the housing of the

DUT, making sure that good contact is established.

➭ When testing extension cables: Plug the test instrument’s probe into the

SL socket (5). Connect the plug and the socket of the extension cable
under test to the corresponding surface mount plug and surface
mount outlet on the test adapter.

➭ Perform testing in accordance with the operating instructions included

with the test instrument.

➭ Read the measured value and compare it with permissible values per

DIN VDE 0701-0702.

The connector cable must be shaken back and forth, section by
section over its entire length, during measurement (for
permanently installed devices only in so far as the connector
cable is accessible during maintenance, modification or testing).

VL2 E Test Adapter

Note

Attention!

!

Note

For Testing Devices and Cables
in Combination with DIN VDE 0701-0702 Test Instruments

Compensation of Test Adapter Connector Cable Resistance

Cable resistance amounts to 0.07 . This value must be subtracted from
the displayed measured value for measurements in extreme ranges.
A resistance value of 0.3  may not be exceeded for devices under test
with cable lengths of up to 5 meters. A value of 0.3 , plus 0.1  for each
additional 7.5 meters, applies for lengths of greater than 5 meters.

5.2 Measuring Insulation Resistance

During this test, L1, L2, L3 and N are measured against PE (rotary
selector switch set to position 1).

➭ Perform testing in accordance with the operating instructions included

with the test instrument.

➭ Read the measured value and compare it with permissible values per

DIN VDE 0701-0702. When testing extension cables, a value of 2 M
should not be significantly fallen short of.

If there is any uncertainty about applying insulation voltage, for
example with electronic devices, or, in the case of safety class I
devices, if there is no assurance that all components subjected to
line voltage will be taken into account by the measurement, the
DUT must be tested using a leakage current measuring method
with a suitable test instrument.

5.3 Measuring Equivalent Leakage Current

➭ Perform testing in accordance with the operating instructions included

with the test instrument.

➭ Read the measured value and compare it with permissible values per

DIN VDE 0701-0702.

6 Function Test for Extension Cables

➭ Select insulation measurement at the test instrument.
➭ Set the test adapter’s rotary selector switch to position 2.
➭ Read the measured value.

The adapter may indicate a value ranging from 0  in the event of a
short-circuit of all wires to infinite (display overrange) in the event of a
wire interruption. Owing to the good insulation of undamaged cables
a test value of 7 M with a tolerance of 10% has been established for
this efficient test method.
All values in the range from 6.3 to 7.7 M therefore indicate that testing
has been passed.
If a fault has been detected, the precise fault type such as short­circuit or interruption of wires, reversed wiring and/or inadequate
insulation must be evaluated.

The following characteristics can be tested with this procedure:

➭ Testing of AC cables for short-circuiting and continuity
➭ Additional testing of 3-phase cables and caravan cables for reversed

wiring of L1, L2, L3 and N (clockwise rotation)

Do not touch the plug-in contacts of the plugs of long connection
cables after testing. They could be electrically charged.

When using the adapter with SECUTEST S2N+, the error message
„Visual test failed“ appears if the test has not been passed.

7 Characteristic Values

Nominal Range of Use

Maximum voltage

Maximum current

Electrical Safety

Safety class I
Measuring category I for insulation resistance measurement,

Ambient Conditions

Storage temperature – 20 C ... + 60 C
Operating temperature – 10 C ... + 50 C
Accuracy range 0 C ... + 50 C
Relative humidity Max. 75%, no condensation allowed
Elevation Max. 2000 m
Deployment Indoors; outdoors only within the specified

Mechanical Design

Protection Housing: IP 40 per DIN VDE 0470, part 1

Dimensions W x H x D: approx. 330 x 230 x 145 mm
Weight Approx. 1.7 kg

For measuring insulation resistance: 600 V DC
For measuring equivalent leakage current: 230 V AC

For measuring protective conductor resist.:10 A DC/AC

300 V CAT II for all other measurements

ambient conditions

Terminals: IP 20

8 Maintenance

Self-Test

Self-testing for protective conductor continuity at the connector cable is
performed automatically for all VDE tests.

Housing

No special maintenance is required for the housing. Keep outside
surfaces clean. Use a slightly dampened cloth for cleaning. Avoid the use
of cleansers, abrasives and solvents.

9 Repair and Replacement Parts Service

Calibration Center* and Rental Instrument Service

When you need service, please contact:

GMC-I Service GmbH
Service Center
Thomas-Mann-Str. 20
90471 Nuremberg, Germany
Phone [phone]
Fax [phone]
E-Mail [e-mail]
www.gmci-service.com

This address is only valid in Germany. Please contact our representatives
or subsidiaries for service in other countries.

* DAkkS Calibration Laboratory for Measured Electrical Quantities:

D–K–1580-01-01, accredited per DIN EN ISO/IEC 17025:2005

Accredited measured quantities: direct voltage, direct current values,
DC resistance, alternating voltage, alternating current values, AC active power,
AC apparent power, DC power, capacitance, frequency and temperature.

10 Product Support

When you need service, please contact:

GMC-I Messtechnik GmbH

Product Support Hotline

Phone [phone]
Fax [phone]
E-Mail [e-mail]

Edited in Germany • Subject to change without notice • A pdf version is available on the internet

GMC-I Messtechnik GmbH
Südwestpark 15
90449 Nürnberg •

Germany

Phone [phone]
Fax [phone]
E-Mail [e-mail]
www.gossenmetrawatt.com