Gossen Metrawatt SECULOAD-N Manual de Usario

Gossen Metrawatt Equipo de medición SECULOAD-N

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Test adapter SECULOAD-N

for testing the off-load voltage of welding equipment per EN 60974 3-349-709-03

6/12.16

Operating Instructions

GMC-I Messtechnik GmbH 1

1 Standard Equipment

1 test adapter (article number Z745R)

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

2 Applications

In conjuction with a multimeter or a SECUTEST... test instrument,

the SECULOAD-N test adapter is designed for testing welding

equipment (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 rectifier of the SECULOAD-N uses rectifier

diode 1N 4007 recommended by the standard. This diode is a

power rectifier diode and, due to its design principle, only suitable

for voltage sources with a low clock rate in the line frequency

range or for voltage sources with conventional transformers.

However, there is welding equipment in the market, which uses

pulsed voltage sources with considerably higher clock rates. The

equipment can produce pulses with high voltage which, in turn,

are not completely captured by the peak value rectifier of the SEC-

ULOAD-N. In these cases, the voltage issued by the SECULOAD-N

may be distinctly below the peak values in the output voltage of

the welding equipment. It is imperative that this fact be taken into

account in evaluating the measured values!

Special case: Welding instruments with an open-circuit voltage of less

than 30 V *

In this case, the

SECULOAD-N

does not provides for

any load control.

Measurements are performed with a load resistance of 5 k. 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.

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+

➭Only experts who are familiar with welding, cutting

and related processes are allowed to perform these

tests.

➭Persons with basic electrotechnical training are allowed

to perform maintenance work and periodic tests provided that

the welding equipment is not opened.

3 Safety Instructions

This instrument fulfills the requirements of the applicable EU

guidelines and national regulations. 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/DIN 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.gossenme-

trawatt.com by entering the search term ’WEEE’

Carefully read the operating instructions before use, in particular the op-

erating instructions included with the test instrument with which you in-

tend to use the adapter.

Opening of Equipment / Repair

The equipment may be opened only by authorized service per-

sonnel 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 ser-

vice personnel.

In case the equipment was opened by unauthorized personnel,

no warranty regarding personal safety, measurement accuracy,

conformity with applicable safety measures or any consequential

damage is granted by the manufacturer.

2 GMC-I Messtechnik GmbH

4 Connection facilities

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)

➭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

welding current outputs.

Multimeter Connection for Report Generation, for Example, with SECUSTAR FM+

➭Connect the welding current outputs with the input sockets of

the test adapter (blue sockets).

➭Measurement of US: Connect a multimeter (e.g. METRAHIT X-TRA)

with the output sockets (+ and –) of the test adapter.

Multimeter Connection for Report Generation, for Example, with SECUSTAR FM+

➭Connect the welding current outputs with the input sockets of

the test adapter (blue sockets).

➭Measurement of UR: Connect a multimeter (e.g. METRAHIT X-TRA)

with the welding current outputs.

Connection of SECUTEST PRO (for Test Sequence)

➭Connect the welding current outputs with the input sockets of

the test adapter (blue sockets).

➭Measurement of US with SECUTEST PRO: Connect the test instru-

ment (via the test sockets COM and V) with the output sock-

ets (+ and –) of the test adapter.

➭Measurement of UR with SECUTEST PRO: Connect the test instru-

ment (via the test sockets COM and V) with the welding cur-

rent outputs.

SECULOAD

blue

+ red

– black

Welding Equipment

Measurement of US

(Peak Value)

SECULOAD

blue

+ red

– black

Welding Equipment

Measurement of UR

(RMS Value)

V DC

SECULOAD + red

blue

– black

Welding Equipment

Measurement of US

(Peak Value)

V DC

SECULOAD + red

blue

– black

Welding Equipment

Measurement of UR

(RMS Value)

SECULOAD

blue

+ red

COM

SECUTEST PRO

Welding Equipment

black –

SECULOAD

blue

+ red

COM

SECUTEST PRO

Welding Equipment

black

–

Measurement of US

Measurement of UR

(Peak Value)

(RMS Value)

GMC-I Messtechnik GmbH 3

Connection of SECUTEST BASE(10) (for Test Sequence)

➭Connect the welding current outputs with the input sockets of

the test adapter (blue sockets).

➭Measurement of US with SECUTEST BASE(10): Connect the black

output socket (–) of the test adapter directly with the mains

PE. Connect test probe P1 of the test instrument directly with

the red socket (+) of the test adapter voltage output.

➭Measurement of UR with SECUTEST BASE(10): Connect one weld-

ing current output directly with the mains PE. Connect test

probe P1 of the test instrument directly with the second weld-

ing current output.

5 Individual Measurements

Preparations for Individual Measurements

➭Read the operating instructions for your test instrument and

familiarize yourself with the voltage test function of your test

instrument.

•SECUTEST S2N+(10) or SECUTEST S2N+w:

Voltage measurement is performed in switch position Menu

under parameter UAC/DC, as described in chapter „Individual

Measurements“, sub-section „Alternating /Direct Voltage“ of

the operating instructions for the test instrument.

•

SECUSTAR FM+:

There is no connection provided for the test adapter.

Voltage is measured with a multimeter.

When using a multime-

ter, activate its min/max value memory.

•SECUTEST PRO (or Feature I01):

Connection is established via the input sockets COM and V, in

the same way as connecting a multimeter. Voltage measure-

ment is performed in switch position U.

Performing Individual Measurements

➭Switch the DUT on and wait for approx. 5 seconds.

➭

Press and hold the

START

key at the test adapter. After about 1 to

2 seconds a rising test current is present and

LED

lights up.

➭As soon as the maximum current is reached and the Stop LED

lights up, release the START key at the test adapter.

➭

Read out the maximum voltage value saved to the respective

measuring or test instrument and check whether it is below the

maximum value specified for the respective welding equipment.

In the SECUTEST S2N+(10) or SECUTEST S2N+w test instrument,

the min/max values can be displayed with key as from firm-

ware version 7.1.

➭Separate the DUT from the voltage source.

Attention!

When the Temp. LED lights up, the test adapter must be

disconnected from the DUT. Allow the test adapter to

cool down for 10 to 20 minutes before using it again.

Note

Always disconnect the test adapter from the DUT

when it is not required in order to avoid unnecessary self-

heating.

6 Characteristic Values

Operating voltage 30 V ... 130 V (RMS) AC / DC

Output voltage max. 200 V DC

Current consumption

Standby: 5 ... 45 mA, Load current max. 650 mA

Input resistance 200  ... 5.4 k

Output resistance 10 k

Measuring category CAT II 300 V

Voltage supply

from DUT

Dimensions, Weight

W x H x D: 13 x 6.7 x 4.5 cm, approx. 200 g

Protection Housing: IP40, terminals IP20

Interference emission EN 61326-1:2013 class B

Interference immunity EN 61326-1:2013

7 Device Return and Environmentally Compatible Disposal

The instrument is a category 9 product (monitoring and control

instrument) in accordance with ElektroG (German Electrical and

Electronic Device Law). This device is subject to the RoHS direc-

tive. Furthermore, we make reference to the fact that the current

status in this regard can be accessed on the Internet at

www.gossenmetrawatt.com by entering the search term WEEE.

We identify our electrical and electronic devices in accor-

dance with WEEE 2012/19/EU and ElektroG with the

symbol shown to the right per DIN EN 50419.

These devices may not be disposed of with the trash. Please con-

tact our service department regarding the return of old devices.

SECULOAD

blue

+ red

SECUTEST BASE(10)

Welding Equipment

black –

SECULOAD

blue

+ red

SECUTEST BASE(10)

Welding Equipment

black

–

Measurement of US

Measurement of UR

(Peak Value)

(RMS Value)

PE Mains

Especificaciones del producto

Marca:	Gossen Metrawatt
Categoría:	Equipo de medición
Modelo:	SECULOAD-N

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