GMC-I Messtechnik GmbH
3
Standard Equipment
1 test adapter (article number Z745V)
1 measurement cable red, 1 measurement cable black,
2 measurement cables blue,
2 alligator clips blue for contacting the welding electrodes,
1 set of operating instructions German/English
Applications
In conjuction with a multimeter or a SECUTEST... test instrument,
the
SECULOAD
test adapter is designed for testing welding equip-
ment (subsequenly referred to as device under test or DUT) in
accordance with standard
EN 60974-4:2007
. According to this
standard, the peak values of the off-load voltage may not exceed
the limit values for any possible setting.
Attention!
The peak value of the open-circuit voltage is determined
in the
SECULOAD
by means of a peak value rectifier with very fast
diodes. As a result, the actual peak value of the open-circuit volt-
age is also issued for pulsed voltage sources with clock rates in
the range of several 10 kHz, based upon the filter stipulated in the
standard. For some arc welding equipment, the issued voltage
value may exceed the admissible limit value due to the fact that
such high-frequency clock pulses are not fully taken into account
by the manufacturers of the welding equipment.
Special case: Welding instruments with an open-circuit voltage of less
than 30 V *
In this case, the
SECULOAD
does not provides for any load control.
Measurements are performed with a load resistance of 5 k
Ω
. For
such low voltages, load control can be neglected, so that the
measuring result is shown on the display even without pressing
the
START
key.
* For the purpose of verification, perform a direct voltage measurement of
your welding unit by using a multimeter or a SECUTEST... test instru-
ment (without having the test adapter connected in this case).
Special case: Welding instruments which deactivate open-circuit voltage
In this case, a certain key at the welding instrument must be
pressed consistently in order to prevent deactivation. Please refer
to the operating instructions of the welding instrument or contact
the manufacturer for details on such cases.
Safety Instructions
This instrument fulfills the requirements of the applicable Euro-
pean and national EC guidelines. We confirm this with the CE
marking. The relevant declaration of conformity can be obtained
from GMC-I Messtechnik GmbH. The test adapter is manufac-
tured and tested in accordance with safety regulations
IEC 61010-1/EN 61010-1/VDE 0411-1.
When used for its intended purpose, the safety of the operator, as
well as that of the instrument, is assured.
Please make sure that the output of the DUT is de-energized for connect-
ing it to or disconnecting it from the test adapter.
Before using the test adapter, the off-load voltage of the welding equip-
ment must be checked. Input voltages at the test adapter of more than
130 V are not permissible and result in the destruction of the test adapter.
In this case, the welding equipment must be repaired prior to testing it
with the test adapter.
In order to protect the internal resistor against overloading
between the red and black socket connectors of the test adapter,
these two
socket connectors may not be short-circuited
. Wait until the
measured voltage is no longer applied and/or the respective
capacitors are discharged (this is performed automatically during
operation with a SECUTEST... test instrument).
If the test adapter should nevertheless be overloaded once, volt-
age measurements are no longer possible. You are kindly
requested to send the test adapter to GMC-I Service GmbH for
repair in this case.
The test adapter may not be used
•
for testing plasma jet welding equipment
•
in the event of input voltages of more than 130 V
•
in the event of any visible external damage
•
if it no longer functions properly
Meaning of Symbols on the Instrument
Warning concerning a source of danger
(attention: observe documentation!)
CAT II
Measurement category II device
Continuous, doubled or reinforced insulation
Indicates EC conformity
This device may not be disposed of with the trash. Fur-
ther information regarding the WEEE mark can be
accessed on the Internet at www.gossen-
metrawatt.com by entering the search term ’WEEE’
Carefully read the operating instructions before use, in particular the ope-
rating instructions included with the test instrument with which you in-
tend to use the adapter.
Test Sequences and Individual Measurements with the Test Adapter
The following test instruments include test sequences for welding
instruments in accordance with EN 60974-4:
•
SECUTEST S2N+w
•
SECUTEST BASE(10)
•
SECUTEST PRO (or Feature I01)
•
SECUSTAR FM+
Alternatively, individual measurements, i.e. mere voltage tests can
be performed in combination with the test adapter:
•
SECUTEST S2N+(10)
•
SECUTEST SIII+
•
Multimeter
with min/max value memory
Connection of SECUTEST S2N+w / SECUTEST S2N+(10)
➭
Connect the welding current outputs with the input sockets of
the test adapter (blue sockets).
➭
Connect the test instrument (via test sockets 2 and 3) with the
output sockets (+ and –) of the test adapter.
Connection of SECUTEST S2N+w / SECUTEST S2N+(10)
GB
!
3
2
SECU
LOAD
blue
+
red
–
black
Welding Equipment
Measurement of US
(Peak Value)
3
2
SECU
LOAD
blue
+
red
–
black
Welding Equipment
Measurement of UR
(RMS Value)