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Gossen MetraWatt PROFITEST PRCD, Operating Instructions Manual, Page: 7 / 16

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Gossen MetraWatt PROFITEST PRCD Operating Instructions Manual Download Page 7

GMC-I Messtechnik GmbH

7

3.3

Connecting the PRCD

The respective PRCD must be connected to 
the test adapter for all tests.

Connecting a Single-Phase PRCD 

➭

Insert the earthing contact inlet plug from 
the PRCD into the earthing contact out-
let (4) at the test adapter.

➭

Insert the earthing contact plug (2) from 
the test adapter into the outlet coupling 
socket at the PRCD.

Example of a Single-Phase PRCD

Connecting a 3-Phase PRCD

➭

Insert the CEE inlet plug from the PRCD 
into the CEE outlet (6) at the test 
adapter.

➭

Insert the CEE plug (1) from the test 
adapter into the CEE outlet coupling 
socket at the PRCD.

4

Measurements with the 
PROFITEST MXTRA

In order to perform protective conductor mea-
surements (Rlo) at 

type S PRCDs 

with the 

PROFITEST 

MXTRA

, the test adapter must remain connected 

to the mains.
The test adapter can remain connected to the 
mains for protective conductor measurements 
conducted at PRCDs whose protective conduc-
tor is not switched, as well as for insulation mea-
surements (Rins) with the 

PROFITEST MXTRA

4.1

Measuring Protective Conductor 
Resistance (Rlo)

As opposed to the usual default setting for 
low-resistance measurements, the device 
under test does not have to be discon-
nected from all sources of voltage in this 
case. Depending on the PRCD, the rotary 
selector switches have to be set to the 

ON

 

and the 

1~ ON

 or 

3~ ON

 positions, in order to 

be able to activate the PRCD and switch the 
protective conductor through.

Example of a Single-Phase PRCD

➭

Before performing protective conductor 
measurements, execute an offset mea-
surement to assure that the test 
adapter’s connector contacts are not in-
cluded in the measurement results. 

➭

Insert the respective test plug into the 
appropriate socket at the test adapter to 
this end: 2 to 4 or 1 to 6.

➭

Start the offset measurement at the 

PROFITEST MXTRA

.

➭

Connect the PRCD as described in sec-
tion 3.3.

➭

Connect the 

PROFITEST MXTRA

 test instru-

ment to sockets 9 and 10 via the 2-pole 
measuring adapter.

PROFI

TEST

⏐

P

RCD

Measurement with the PROFITEST MXTRA

Summary of Contents for PROFITEST PRCD

Page 1: ... PRCD Adapter for Standards Compliant Testing of PRCDs by Simulating Faults 3 349 797 15 7 4 19 Important Read carefully before use Keep on file for future reference Please observe the manufacturer s details on the devices under test ...

Page 2: ...6 for connecting the PROFITEST MXTRA during protective con ductor and insulation measurements 10 PRCD outlet sockets connected in paral lel to plugs 1 and 2 for connecting the PROFITEST MXTRA during protective con ductor and insulation measurements 11 Five replaceable fuses Instrument Overview 8 7 6 4 1 2 10 3 9 Mains Connection To PRCD Outlet To PRCD Inlet PRCD IN 5 11 PRCD OUT Fault Selection Ma...

Page 3: ...tor Resistance Rlo 7 4 2 Measuring Insulation Resistance Riso 8 4 3 Tripping Test with Nominal Residual Current and Measurement of Time to Trip 8 4 4 Varistor Test PRCD K 9 5 Protective Conductor Current Measurement 9 6 Fault Simulation 10 6 1 PRCD S single phase 10 6 1 1 Simulated Interruption 10 6 1 2 Simulated Wire Reversal 10 6 1 3 Simulation of PE to Phase PE UEXT 10 6 1 4 Contacting the ON K...

Page 4: ...ment cables are in flawless condition e g no damage to insulation no cracks in cables or plugs etc When using a test probe with coil cord PROFITEST MXTRA Grip the tip of the test probe firmly for example during insertion into a jack socket Tensioning at the coil cord may otherwise cause the test probe to snap back resulting in possible injury Touch current at the probe socket is limited by the int...

Page 5: ...Fault indication by means of LEDs on the test adapter Attention In any case comply with the manu facturer s recommendations con cerning tests to be conducted in accordance with DGUV Provision 3 Testing of PRCDs with the Test Adapter by Simu lating Faults and Measuring Protective Conductor and Insulation Resistance as well as Tripping Current and Time to Trip using the PROFITEST MXTRA Test Instrume...

Page 6: ...ctive conductor is led out of the housing as a loop between surface mount sockets 4 and 6 This makes it possible to measure any protective con ductor current with the help of a current clamp transformer 3 Initial Start Up See the connections overview on page 2 for all connection variants 3 1 Testing the LEDs Before performing any measurements the LEDs should be tested for correct function ing Sing...

Page 7: ... whose protective conduc tor is not switched as well as for insulation mea surements Rins with the PROFITEST MXTRA 4 1 Measuring Protective Conductor Resistance Rlo As opposed to the usual default setting for low resistance measurements the device under test does not have to be discon nected from all sources of voltage in this case Depending on the PRCD the rotary selector switches have to be set ...

Page 8: ...sidual Cur rent and Measurement of Time to Trip Note If you operate your test adapter at an electrical system with a 30 mA breaker the mains RCCB may be tripped during the tripping test tripping current and time to trip instead of the PRCD In this case the MAINS L1 LED goes out In order to prevent an upstream RCD also non selevtive RCD from being tripped and to ensure that the actual tripping curr...

Page 9: ...n 30 mA R 220 Ω 1 W For PRCD K with In 10 mA R 620 Ω 0 5 W 3 Switch on PRCD K by pressing the ON button 4 Press key T device must trip PE circuit is functioning properly The shutdown test of the PRCD K stipulated by KOPP at this point is performed in con nection with the testing of the RCD protec tion device with a continuously rising resid ual current until the device is tripped 5 Protective Cond...

Page 10: ...the orange area for single phase wire reversal Instead of the L1 LED the PE LED must light up It must not be possible to activate the PRCD when this fault is simulated 6 1 3 Simulation of PE to Phase PE UEXT Set the left hand rotary selector switch to the PE UEXT position The L1 LED and the PE LED PE light up It must not be possible to activate the PRCD when this fault is simulated Step Rotary Swi...

Page 11: ...turning the right hand rotary selector switch to the 1 ON position 6 2 1 Simulated Interruption Start with the left hand rotary se lector switch in the first ON position in the orange area for single phase interrup tion Switch through the positions one after the other in the clockwise direction ta ble from top to bottom Due to its design the following tests are omitted for the PRCD K PE interrupti...

Page 12: ...onnection although N is interrupted Note Tripping performance may deviate from this example in the case of PRCDs from other manufacturers adhere to the manufacturer s test instructions Step Rotary Switch Test Adapter PRCD Action L1 LED L2 LED L3 LED N LED PE LED LED 1 Activate the PRCD 2 The PRCD is tripped It must not be possible to reactivate it 3 Activate the PRCD 4 The PRCD is tripped It must ...

Page 13: ...ible to activate the PRCD when this fault is simulated Step 18 see section entitled Protective Conductor Current Measurement on page 9 Step Rotary Switch Test Adapter PRCD Action L1 LED L2 LED L3 LED N LED PE LED LED 11 It must not be possible to activate the PRCD 12 It must not be possible to activate the PRCD 13 It must not be possible to activate the PRCD 14 It must not be possible to activate ...

Page 14: ... 230 400 V 3P N PE 16 A Throughput rating Earth contact 10 VA CEE 30 VA Power consumption Earth contact 2 VA CEE 4 VA Electrical Safety Measurement category 300 V CAT II Pollution degree 2 Fuse links 5 ea FF315mA 500V Ambient Conditions Operating temperature 5 50 C Storage temperature 20 60 C Relative humidity Max 75 no condensation allowed Mechanical Design Test adapter protection IP 40 per DIN V...

Page 15: ...g positions in which errors are simulated for measuring purposes must be exempt from this test Conductor interruption PE orange PE green 3P 30 MΩ Reversed conductors L1 PE orange L1 PE green L2 PE green L3 PE green 30 MΩ Voltage on protective conductor PE Uext green orange approx 1 5 MΩ Connection and or Contacting of PRCD Adapter 3 phase 400 V The protective conductor resistance test is performed...

Page 16: ...w This device is subject to the RoHS directive 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 In accordance with WEEE 2012 19 EU and ElektroG we identify our electrical and electronic devices with the symbol in accor dance with DIN EN 50419 which is shown at the right Devic...

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