Gossen MetraWatt PROFiTEST DC-II User manual

Operating Instructions
PROFiTESTDC-II
Test Instrument for the Suppression of RCCB Tripping
and for Tripping Tests of DC Components
in AC-DC Sensitive RCCBs 3-348-973-37
4/10.03

2GOSSEN METRAWATT GMBH
Contents Page
1 Safety Precautions .....................................2
2 Description .................................................3
2.1 Loop Resistance Measuring Mode
with the PROFiTEST0100S-II
with Suppression of RCCB Tripping ........................3
2.2 Tripping Test Operating Mode
for AC-DC Sensitive RCCBs ...................................3
2.2.1 With Rising DC Residual Current and
Measurement of Tripping Current
for Undelayed RCCBs ............................................3
2.2.2 With Rising DC Residual Current and
Measurement of Tripping Current for
Selective or Short-Time-Delay RCCBs ....................3
2.2.3 With Constant DC Residual Current and Measurement
of Time to Trip ......................................................4
3 Connecting the PROFiTESTDC-II Test
Instrument to the System Under Test ........4
3.1 Testing in Systems with Neutral Conductor .............4
3.2 Testing in Systems without Neutral Conductor ........4
4 Operation ...................................................5
4.1 Loop Resistance Measurement Mode
with the PROFiTEST0100S-II with
Suppression of RCCB Triggering ............................5
4.2 Tripping Test Operating Mode
for DC Components in AC-DC Sensitive RCCBs .......5
4.2.1 With Rising DC Residual Current
and Measurement of Tripping Current
for Undelayed RCCBs ............................................5
4.2.2 With Rising DC Residual Current
and Measurement of Tripping Current
for Delayed RCCBs ................................................6
4.2.3 With Constant DC Residual Current
and Measurement of Time to Trip
for Undelayed RCCBs ............................................6
5 Characteristic Values .................................6
6 Maintenance ..............................................7
6.1 Internal Fuse ........................................................7
6.2 External Fuse ........................................................7
6.3 Housing ...............................................................7
7 Repair and Replacement Parts Service
DKD Calibration Lab
and Rental Instrument Service ..................8
8 Product Support .........................................8
1 Safety Precautions
The PROFiTESTDC-II test instrument has been
manufactured in accordance with safety regula-
tions EN 61010-1, VDE 0411-1 and
IEC 61010-1.
If used for its intended purpose, the safety of both
the operator and the instrument is assured. Their
safety is however not assured, if the test instru-
ment is operated incorrectly or handled
improperly.
The test instrument should only be connected to
the mains as long as is necessary to perform the
desired measurement, in order to avoid unneces-
sarily high temperatures within the instrument.
Attention!
!Always be certain to select the correct
line voltage when operating the test in-
strument (voltage selector switch at the
right hand side of the housing labelled:
230/400 V).
Meanings of symbols on the instrument
Warning concerning a point of danger
(Attention: observe documentation!)
Protection class II device
EU seal of approval
Meaning of symbols in
the operating instructions
Selective RCCB
Pulse-controlled RCCB
AC-DC sensitive RCCB
IFRising DC residual current
!
S

GOSSEN METRAWATT GMBH 3
2Description
2.1 Loop Resistance Measuring Mode
with the PROFiTEST0100S-II
with Suppression of RCCB Tripping
The PROFiTESTDC-II test instrument allows for
the measurement of loop resistance in TN
systems with RCCBs (10/30/100/300/500 mA
nominal residual current) without DC sensitive
components.
The test instrument generates a DC residual cur-
rent which saturates the magnetic circuit of the
RCCB.
The PROFiTEST0100S-II (PROFiTEST0100S
as well) superimposes a measuring current which
demonstrates only half-waves of like polarity. The
RCCB cannot detect this measuring current and
can thus no longer be tripped during measure-
ment.
2.2 Tripping Test Operating Mode
for AC-DC Sensitive RCCBs
2.2.1 With Rising DC Residual Current and
Measurement of Tripping Current
for Undelayed RCCBs
A slowly rising direct current is applied to N and
PE with the selector switch in the IFposition.
The measured current value is displayed continu-
ously. When the RCCB is tripped, the last mea-
sured current value is stored for several seconds
and can be read from the display.
2.2.2 With Rising DC Residual Current and
Measurement of Tripping Current for
Selective or Short-Time-Delay RCCBs
The current ramp demonstrates a gradual overall
rise with the selector switch in the position.
Test duration is considerably longer. Use this
selector switch position for testing tripping current
for selective or short-time-delay AC-DC sensitive
RCCBs.
Start
t1 t3
Measure
t2
Active
RCCB inoperable!
t
I
F
/mA
Suppression of RCCB Tripping
with Pulse-Controlled RCCB
S
0.4 0.8 1.0 1.6 2.0 2.4 2.8 3.2 3.6 4.0 4.4 4.8
100
200
300
400
500
600
I
F
/mA
t/s
A residual current curve with a lesser slope
between 0 and 100 mA provides for
enhanced resolution.
Start
Tripping Occurs
A residual current curve with
a steeper slope as of
100 mA allows for more
rapid testing.
Measurement of Tripping Current for AC-DC Sensitive RCCBs

4GOSSEN METRAWATT GMBH
2.2.3 With Constant DC Residual Current and Measurement of Time to Trip
With the selector switch set to the respective
nominal residual current, twice the nominal current
is applied to N and PE. Time to trip is measured
and displayed for the RCCB.
3 Connecting the PROFiTESTDC-II Test Instrument to the System Under Test
3.1 Testing in Systems with Neutral Conductor
Perform testing at an earthing contact outlet with
the provided earthing contact device connector
cable in systems which have both a neutral and a
protective conductor.
➭Set the voltage selector switch to 230 V (at
the right hand side of the housing labelled:
230/400 V).
Note!
☞If the voltage selector switch has been set
to 400 V, the test instrument is inoperable
and only random values appear at the
display.
➭Perform testing as described in chapter 4.2.1.
3.2 Testing in Systems without Neutral Conductor
Proceed as follows in order to test RCCBs in sys-
tems without a neutral conductor:
➭Set the voltage selector switch to 400 V.
➭Use the Z523A test adapter with three test
probes.
➭Connect the test probes as follows:
➭Connect the black test probe to a phase
conductor downstream from the RCCB.
➭Connect the blue test probe to a different
phase conductor downstream from the
RCCB.
➭Connect the red test probe to the same
phase conductor as the blue test probe has
been connected to, but upstream from the
RCCB.
➭We recommend performing the test on all
three phases.
Attention!
!When a connection is made between two
phases, the voltage selector switch must
be set to 400 V. Otherwise the internal
device fuse will blow!
10 20 40 50
100
200
300
400
500
600
I
Test
/mA
t/ms
Start Tripping Occurs
30 60 70
Measurement of Time to Trip
for AC-DC Sensitive RCCBs
L1
L2
L3
N
PE
red
blue
black
!
400 V
230 V
L1
L2
L3
red
blue
black
!
400 V
230 V

GOSSEN METRAWATT GMBH 5
4Operation
Overview
4.1 Loop Resistance Measurement Mode
with the PROFiTEST0100S-II with
Suppression of RCCB Triggering
➭Connect the PROFiTESTDC-II to the system
under test:
The “Mains” lamp lights up green. The display
value is equal to or close to 0.
➭If the polarity lamp lights up, reverse the poles
at the mains connection.
➭Connect the PROFiTEST0100S-II via the
earthing contact outlet at the
PROFiTESTDC-II mains plug. Select posi-
tive half-wave for the RLoop range (loop resis-
tance).
➭Set the selector switch to the IFposition
and the slide switch to “undelayed”.
➭Press the “START” key at the
PROFiTESTDC-II.
The “Active” lamp lights up.
➭The “Measuring” lamp lights up after approxi-
mately 4 to 5 s.
The RCCB is disabled (disabling of the RCCB
lasts for approximately 30 s).
Magnetizing current is displayed in mA.
➭Measure loop resistance with the
PROFiTEST0100S-II with the rotary switch
in the “RLoop” position after “positive half-
wave to earth” has been selected in the
menu.
➭After the measurement has been completed,
wait until the “Measuring” lamp has gone out,
followed by the “Active” lamp about 6 s later.
Disconnect the instrument from the system.
Attention!
!The RCCB is disabled during operation and
measurement.
The RCCB must be tripped after measure-
ment with the PROFiTESTDC-II in order
to test for proper functioning.
Either activate the test button at the
RCCB, or perform a tripping test with the
PROFiTEST0100S-II.
Important Notes
If the “RLoop > max.” lamp lights up, loop resis-
tance is greater than approximately 8 Ω. Correct
measurement is impossible in this case. The fact
that the lamp may flicker during measurement is
of no consequence.
If the “Temperature” lamp lights up, disconnect
the PROFiTESTDC-II from the mains and allow it
to cool.
4.2 Tripping Test Operating Mode
for DC Components in AC-DC Sensitive RCCBs
4.2.1 With Rising DC Residual Current
and Measurement of Tripping Current
for Undelayed RCCBs
➭Connect the PROFiTESTDC-II to the system
under test:
The “Mains” lamp lights up green. The display
value is equal to or close to 0.
➭If the polarity lamp lights up, reverse the poles
at the mains connection.
➭Set the function selector switch to the IF
position and the slide swItch to “undelayed”.
➭Press the “START” key at the
PROFiTESTDC-II.
The “Active” lamp lights up.
Measurement Results:
a) Current rises until the RCD is tripped. Tripping
current is subsequently displayed for approxi-
mately 5 s.
or
b) If the RCD fails, current rises until saturation
current has been reached.
Saturation current is displayed in mA for
approximately 30 s, after which the displayed
current value again approaches 0.
Measurement RCCB Type Selector Switch Position Display
Loop Resistance Standard IFundelayed PROFiTEST0100S-II
Triggering Current AC-DC Sensitive IFundelayed PROFiTESTDC-II
Triggering Current AC-DC Sensitive, Delayed IFPROFiTESTDC-II
Time to Trip AC-DC Sensitive 10/30/100/300/500 mA PROFiTESTDC-II
S

6GOSSEN METRAWATT GMBH
4.2.2 With Rising DC Residual Current
and Measurement of Tripping Current
for Delayed RCCBs
Set the slide switch to the position in order to
determine tripping current for selective or short-
time-delay AC-DC sensitive RCCBs.
➭Connect the PROFiTESTDC-II to the system
under test:
The “Mains” lamp lights up green. The dis-
played value is equal to or close to 0.
➭If the polarity lamp lights up, reverse the poles
at the mains connection.
➭Set the function selector switch to the IF
position and the slide switch to .
➭Press the “START” key at the
PROFiTESTDC-II.
The “Active” lamp lights up.
Measurement Results
Current rises continuously, but gradually, until the
RCD is tripped. Tripping current is then displayed
in mA for about 5 s.
This test may last as long as 1 minute.
4.2.3 With Constant DC Residual Current
and Measurement of Time to Trip
for Undelayed RCCBs
➭Connect the PROFiTESTDC-II to the system
under test:
The “Mains” lamp lights up green. The dis-
played value is equal to or close to 0.
➭If the polarity lamp lights up, reverse the poles
at the mains connection.
➭Set the function selector switch to the 10, 30,
100, 300 or 500 mA position, depending
upon the rated current for the RCCB.
➭Set the slide switch to the “undelayed” posi-
tion.
➭Press the “START” key at the
PROFiTESTDC-II.
The “Active” lamp lights up and remains lit
until testing has been completed.
Time to trip is continuously displayed.
Measurement Results
a) Time to trip is displayed in ms for about 5 s
after tripping occurs or
b) If the RCD fails, or if the selected nominal
residual current value is too small, measure-
ment is performed for a period of up to
2000 ms. Time overflow is indicated thereaf-
ter by means of a flush left 1 at the display.
Note!
☞Test current is two times nominal residual
current in accordance with
DIN VDE 0664.
The AC components of AC-DC sensitive RCCBs
are to be tested with the PROFiTEST0100S-II.
5 Characteristic Values
Line Voltage 230/400 V
(–10%, +25%), 50 Hz
DC Residual Current
for Suppression of
RCCB Tripping DC 1.25 A +30%
* limited by means of maximum DC residual current (see above)
Temperature Ranges / Climatic Category
Operating Temperatures –10 °C ... +50 °C
Storage Temperatures –20 °C ... +60 °C
Electrical Safety
Protection Class II per IEC 61010-1/
EN 61010-1/
VDE 0411-1
Operating Voltage 300 V
Test Voltage 3.7 kV 50 Hz
Overvoltage Category II
Contamination Level 2
Internal Fuse electronic (PTC)
External Fuse cartridge fuse link
in plug:
5 mm x 20 mm:
FF 1.6/250
S
S
Measure-
ment Measuring Range Measuring Accuracy Measurement Error
Tripping
Current 1 ... 1999 mA* ±(4% rdg. + 5 d) ±(8% rdg. + 5 d)
Time to
Trip 2 ... 1999 ms ±(3% rdg. + 5 d) ±(6% rdg. + 5 d)
Selector Switch Position
for Measurement of Time to Trip
(nominal residual current)
Test Current
10 mA 20 mA +10%
30 mA 60 mA +10%
100 mA 200 mA +10%
300 mA 600 mA +10%
500 mA 1000 mA +10%

GOSSEN METRAWATT GMBH 7
Electromagnetic Compatibility (EMC)
Product standard DIN EN 61326:2002
Inputs and Outputs
The mains connection provides for power supply
and simultaneously functions as an output for test
and magnetizing current.
Mechanical Design
Protection housing: IP 40 per
DIN VDE 0470
Dimensions L x W x D:
205 mm x 120 mm x
100 mm (without power
cable)
Weight 1.5 kg (without power
cable)
6 Maintenance
6.1 Internal Fuse
An internal fuse protects the test instrument
against operator error.
If the instrument is overloaded with 400 V instead
of 250 V mains power, the electronic fuse is
tripped. LEDs may still be illuminated and charac-
ters may still appear at the display, but the instru-
ment will not function if a test is started.
In such a case, wait for approximately 2 minutes
until the protective circuit has been deactivated
and the test instrument is once again ready for
operation.
6.2 External Fuse
The device connector cable is equipped with a
fuse.
Attention!
!Be absolutely certain that only the speci-
fied fuses are used! If fuses are used
which demonstrate other blowing charac-
teristics, rated current or breaking capac-
ity, danger exists for the user, as well as
for damping diodes, resistors and other
components.
The use of repaired fuses or short-circuiting the
fuse holder is prohibited.
6.3 Housing
The test instrument may only be cleaned with a
soft cloth or brush. If the housing should become
statically charged, discharging may be performed
with an antistatic agent or a damp cloth.
Interference
Emission Class
EN 55022 B
Interference
Immunity Test Value Performance Feature
EN 61000-4-2 Contact/Atmosphere -
4 kV/8 kV A
EN 61000-4-3 10 V/m B
EN 61000-4-4 Mains connection - 2 kV C
EN 61000-4-5 Mains connection - 1 kV B
EN 61000-4-6 Mains connection - 3 V A
EN 61000-4-11 0.5 period / 100% A

Edited in Germany • Subject to change without notice • A pdf version is available on the internet
GOSSEN METRAWATT GMBH
Thomas-Mann-Str. 16-20
90471 Nürnberg • Germany Phone [phone]
Fax [phone]
E-Mail [email protected]
www.gmc-instruments.com
7 Repair and Replacement Parts Service
DKD Calibration Lab*
and Rental Instrument Service
When you need service, please contact:
GOSSEN METRAWATT GMBH
Service Center
Thomas-Mann-Str. 20
90471 Nuremberg, Germany
Phone [phone] - 0
Fax [phone] - 2 53
E-mail [email protected]
This address is only valid in Germany.
Please contact our representatives or subsidiaries
for service in other countries.
* Calibration Laboratory
for Electrical Quantities DKD–K–19701
accredited per DIN EN ISO/IEC 17025
Accredited measured quantities: direct voltage, direct
current values, DC resistance, alternating voltage,
alternating current values, AC active power, AC appar-
ent power, DC power, capacitance and frequency
Competent Partner
GOSSEN METRAWATT GMBH is certified in
accordance with DIN EN ISO 9001:2000.
Our DKD calibration laboratory is accredited by
the Physikalisch Technische Bundesanstalt (Ger-
man Federal Institute of Physics and Metrology)
and the Deutscher Kalibrierdienst (German Cali-
bration Service) in accordance with DIN EN ISO/
IEC 17025 by under registration number DKD–K–
19701.
We offer a complete range of expertise in the field
of metrology: from test reports and proprietary cali-
bration certificates right on up to DKD calibration cer-
tificates.
Our spectrum of offerings is rounded out with free
test equipment management.
An on-site DKD calibration station is an integral part
of our service department. If errors are discovered
during calibration, our specialized personnel are
capable of completing repairs using original
replacement parts.
As a full service calibration laboratory, we can cali-
brate instruments from other manufacturers as
well.
8 Product Support
When you need support, please contact:
GOSSEN METRAWATT GMBH
Product Support Hotline
Phone [phone] - 112
Fax [phone] - 709
E-mail [e-mail]