Gossen Metrawatt M520P, PROFITEST MBASE, PROFITEST MTECH, PROFITEST MPRO, PROFITEST MXTRA User guide

...

Operating Instructions

Series PROFITEST MASTER PROFITEST MBASE+, MTECH+, MPRO, MXTRA, SECULIFE IP

Test Instruments for IEC 60364 / DIN VDE 0100

3-349-647-03

15/7.16

456

91011

MEM: Key for memory functions

HELP: Access context sensitive help

IΔ

: Tripping test

Proceeding to next function (semi-automatic measurement)

Start offset measurements

ON/START

: Switch instrument on,

start/stop measurement

ESC:Return to submenu

Softkeys

Control Panel

Test Instrument and Adapter

16 1715

Fixed Function Keys

19 20 21

RS 232

• Parameter selection

• Specify limit value

• Entry functions

• Memory functions

LEDs and connection icons → section 18

Sockets for Current Clamp Sensor, Probe and PRO-AB Leakage Current Adapter

Interfaces, Charger Jack

* Refer to section 2.1 page 5 regarding usage of

the test probes.

2 GMC-I Messtechnik GmbH

Key

Test Instrument and Adapter

1 Control panel with keys and

display panel with detent for ideal viewing angle

2 Eyelets for attaching the

shoulder strap 3 Rotary selector switch 4 Measuring adapter (2-pole) 5 Plug insert (country specific) 6 Test plug (with retainer ring) 7 Alligator clip (plug-on) 8 Test probes 9

▼ key ON/START *

10 I key IΔ

/compens./Z

OFFSET

11 Contact surfaces for finger

contact

12 Test plug holder 13 Fuses 14 Holder for test probes (8)

Connections for Current Clamp, Probe and PRO-AB Adapter

15 Current clamp connection 1 16 Current clamp connection 2 17 Probe connection

Interfaces, Charger Jack

18 Bluetooth

19 USB slave for PC connection 20 RS 232 for connecting barcode

scanner or RFID reader

21 Jack for Z502P charger

Attention! Make sure that no batteries are inserted before connecting the charger.

22 Battery Compartment Lid

(compartment for batteries and replacement fuses)

Please refer to section 17 for explanations regarding control and display elements.

Battery level indicator

Meas. function

Meas. in progress /

Memory occupancy

Measured

Parameter

Display Panel

Save value

Battery full

Battery OK

Battery weak

Battery (nearly)

Battery level indicator

BAT

Memory occupancy display

MEM

Memory half full

MEM

Memory full > transfer data to PC

Connection Test – Mains Connection Test (→ section 18)

NPEL

)(

Connection OK L and N reversed

NPEL NPEL

RUN READY

Connection test → section 18

depleted: U < 8 V

LPEN

These operating instructions describe a tester with software version SW-VERSION (SW1) 01.16.00

* Can only be switched on with the key on the instrument

Bluetooth® active:

quantities

stopped

Overview of Device Settings and Measuring Functions

Switch Setting,

Descr. on

SETUP

page 8

Measurements with line voltage U

page 16

Appears for all meas. shown below:

IΔN

page 18

page 20

ZL-PE

page 26

ZL-N

page 28

page 30

Measurements at voltage-free objects RE

(MPRO) (MXTRA)

page 37

RLO

page 47

RISO RINS

page 44

SENSOR

page 50

EXTRA

page 51

AUTO

page 64

only MXTRA & SECULIFE IP

Pictograph

Device Settings Measuring Functions

Brightness, contrast, time/date, Bluetooth® Language (D, GB, P), profiles (ETC, PS3, PC.doc)

Default settings < Test: LED, LCD, acoustic signal Rotary switch balancing,

battery test >

Single-phase measurement U

UL-N Voltage between L and N UL-PE Voltage between L and PE UN-PE Voltage between N and PE US-PE Voltage between probe and PE f Frequency

3-phase measurement U

UL3-L1 Voltage between L3 and L1 UL1-L2 Voltage between L1 and L2 UL2-L3 Voltage between L2 and L3 f Frequency

Phase sequence

U / U f / f

UIΔN Contact voltage ta Tripping time RE Earth resistance UIΔN Contact voltage IΔ Residual current RE Earth resistance

ZL-PE Loop impedance IK Short-circuit current

ZL-N Line impedance IK Short-circuit current

UE Earth electrode voltage (probe/clamp)

RLO Low-resistance with polarity reversal

RLO+, RLO– Low-resistance, single-pole Roffset Offset resistance RINS Insulation resistance RE(INS) E U Voltage at the test probes UINS Test voltage

L/AMP

T/RF Temperature/humidity (in preparation)

ΔU Voltage drop measurement ZST Standing surface insulation impedance kWh test Meter start-up test, earth contact plug

IL IMD Ures ta + ΔI RCM e-mobility PRCD

Line voltage / nominal line voltage

Line frequency / nominal line frequency

2-pole measurement (ground loop) RE(L-PE)

2-pole measurement with country spec. plug

3-pole measurement (2-pole with probe)

Selective meas. with current clamp sensor

3-pole measurement

4-pole measurement

Selective measurement with current clamp sensor

2-clamp measurement (earth loop res.)

Soil resistivity

arth leakage resistance

Ramp: triggering/breakdown voltage

Residual or leakage current

Leakage current meas. with Z502S adapter

Check insulation monitoring device

Residual voltage test

Intelligent ramp

RCM (residual current monitor)

Electric vehicles at charging stations (IEC 61851)

Testing of PRCDs type S and K Automatic test sequences

only MXTRA 3 only MTECH+ & MXTRA

L-N -P E

ρE

GMC-I Messtechnik GmbH 3

Table of Contents Page Page

1 Scope of delivery ............................................................. 5

2 Applications ..................................................................... 5

2.1 Using Cable Sets and Test Probes ...............................................5

2.2 Overview of Features Included

with PROFITEST MASTER & SECULIFE IP Device Variants ..........6

3 Safety Features and Precautions ..................................... 6

4 Initial Start-Up .................................................................. 7

4.1 Preparation for use ......................................................................7

4.2 Installing or Replacing the Battery Pack .....................................7

4.3 Switching the Instrument On/Off .................................................7

4.4 Battery Test .................................................................................7

4.5 Charging the Battery Pack in the Tester .....................................7

4.6 Device Settings ...........................................................................8

5 General Notes ................................................................ 13

5.1 Connecting the Instrument ........................................................13

5.2 Automatic Settings, Monitoring and Shut-Off ...........................13

5.3 Measurement Value Display and Memory .................................13

5.4 Testing Earthing Contact Sockets for Correct Connection ........13

5.5 Help Function ............................................................................14

5.6 Setting Parameters or Limit Values using RCD Measurement as an

Example .....................................................................................14

5.7 Freely Selectable Parameter Settings or Limit Values ..............15

5.8 2-Pole Measurement with Fast or Semiautomatic Polarity Reversal ... 15

6 Measuring Voltage and Frequency ................................ 16

6.1 Single-Phase Measurement ......................................................16

6.1.1 Voltage Between L and N (U

with Country-Specific Plug Insert, e.g. SCHUKO .............................16

6.1.2 Voltage between L – PE, N – PE and L – L

with 2-Pole Adapter Connection ...................................................16

6.2 3-Phase Measurement (line-to-line voltage) and Phase Sequence ..... 17

Testing RCDs .......................................................................17

7.1 Measuring Contact Voltage (with reference to nominal residual current) with

Nominal Residual Current .........................................................18

7.2

Special Testing for Systems and RCCBs .........................................20

7.2.1 Testing Systems and RCCBs with Rising Residual Current (AC) for Type

AC, A/F, B/B+ and EV/MI RCDs ....................................................20

7.2.2 Testing Systems and RCCBs with Rising Residual Current (AC) for Type

B/B+ and EV/MI RCDs (nur MTECH+, MXTRA & SECULIFE IP) .......20

7.2.3 Testing RCCBS with 5 • IΔ

7.2.4 Testing of RCCBs which are Suited for

Pulsating DC Residual Current ......................................................21

7.3 Testing for Special RCDs ...........................................................22

7.3.1 System, Type RCD-S Selective RCCBs ..........................................22

7.3.2 PRCDs with Non-Linear Type PRCD-K Elements ............................22

7.3.3 SRCD, PRCD-S (SCHUKOMAT, SIDOS or comparable) ....................23

7.3.4 Type G or R RCCB .......................................................................24

7.4 Testing Residual Current Circuit Breakers in TN-S Systems .....25

7.5 Testing of RCD Protection in IT Systems with High Cable Capa-

citance (e.g. in Norway) ............................................................25

/3 Nominal Residual Current and Tripping Test with

L and PE

) a

L-N

N ............................................................. 21

L-PE

nd N and PE

N-PE

8 Testing of Breaking Requirements

Overcurrent Protective Devices, Measurement of Loop Impedance and Determination of Short-Circuit Current (functions Z

8.1 Measurements with Suppression of RCD Tripping ....................26

8.1.1 Measurement with Positive Half-Waves

(only MTECH+/MXTRA/SECULIFE IP) .............................................27

8.2 Evaluation of Measured Values .................................................27

Settings for Short-circuit current Calculation – Parameter IK ........28

8.3

and IK) ................................................. 26

L-PE

10 Earthing Resistance Measurement (R

10.1 Earthing Resistance Measurement – Mains Operated ..............31

10.2 Earthing Resistance Measurement – Battery Powered

(only MPRO & MXTRA) ...............................................................31

10.3 Earthing Resistance, Mains Powered – 2-Pole Measurement with 2Pole Adapter or Country-Specific Plug (Schuko) without Probe ... 32

10.4 Earthing Resistance Measurement, Mains Powered – 3-Pole Me-

asurement: 2-Pole Adapter with Probe ....................................33

10.5 Earthing Resistance Measurement, Mains Powered – Measurement of Earth Electrode Voltage (U

10.6 Earthing Resistance Measurement, Mains Powered – Selective Earthing Resistance Measurement with Current Clamp Sensor as

Accessory ..................................................................................35

10.7 Earthing Resistance Measurement, Battery Operated – 3-Pole

(only MPRO & MXTRA) ...............................................................37

10.8 Earthing Resistance Measurement, Battery Operated – 4-Pole

(only MPRO & MXTRA) ...............................................................38

10.9 Earthing Resistance Measurement, Battery Operated – Selective (4-pole) with Current Clamp Sensor and PRO-RE Measuring Adap-

ter as Accessory (only MPRO & MXTRA) ...................................40

10.10 Earthing Resistance Measurement, Battery Powered – Ground Loop Measurement (with current clamp sensor and transformer, plus PRO-

RE/2 measuring adapter as accessory) (only MPRO & MXTRA) ..... 41

10.11 Earthing Resistance Measurement, Battery Powered – Measurement of Soil Resistivity ρ

(only MPRO & MXTRA) ...............................................................42

Measuring Insulation Resistance ........................................ 44

11.1 General ......................................................................................44

11.2 Special Case: Earth Leakage Resistance (R

)

12 Measuring Low-Value Resistance

function) ........... 30

function) .........................34

) .....................46

EISO

up to 200 Ohm (protective

conductor and equipotential bonding conductor) ............... 47

12.1 Measurements with Constant Test Current ..............................48

12.2 Protective Conductor Resistance Measurement with Ramp Curve – Measurements on PRCDs with Current-monitored Protective Conductor Using PROFITEST PRCD Test Adapter as Accessory 49

13 Measurement with Accessory Sensors .......................... 50

13.1 Current Measurement with Current Clamp Sensor ................... 50

Special Functions – EXTRA Switch Position ..............................51

14.1 Voltage Drop Measurement (at ZLN) – ΔU Function ................. 52

14.2 Measuring the Impedance of Insulating Floors and Walls (standing surface insulation impedance) – Z

14.3 Testing Meter Start-Up with Earthing Contact Plug

– kWh Function (not SECULIFE IP) .............................................54

14.4 Leakage Current Measurement with PRO-AB Leakage Current Adapter as Accessory

Function (PROFITEST MXTRA & SECULIFE IP only) .............55

– I

14.5 Testing of Insulation Monitoring Devices – IMD Function

14.6

14.7

14.7.1 Applications ................................................................................59

14.8 Testing Residual Current Monitors

14.9 Testing the Operating States of Electric Vehicles at Charging Sta-

14.10 Test Sequences for Report Generation of Fault Simulations on

14.10.1 Selecting the PRCD under Test .....................................................62

14.10.2 Parameter Settings ......................................................................62

14.10.3 Test Sequence PRCD-S (single phase) – 11 Test Steps .................63

14.10.4 Test Sequence PRCD-S (three-phase) – 18 Test Steps ..................63

(PROFITEST MXTRA & SECULIFE IP only) ...................................56

Residual Voltage Test – Ures Function ( Intelligent Ramp – ta+ID Function (

– RCM Function (PROFITEST MXTRA only) ................................60

tions per IEC 61851 (MTECH+ & MXTRA only) ..........................61

PRCDs with PROFITEST PRCD Adapter (MXTRA only) ...............62

Function .........................53

PROFITEST MXTRA

only) ....... 59

15 Automatic Test Sequences – AUTO Function ................. 64

only) ..... 58

9 Measuring Line Impedance (Z

4 GMC-I Messtechnik GmbH

function) ................... 28

L-N

16 Database ........................................................................ 66

16.1 Creating Distributor Structures, General ...................................66

16.2 Transferring Distributor Structures ........................................... 66

16.3 Creating a Distributor Structure in the Test Instrument ........... 66

16.3.1 Creating Structures (example for electrical circuit) ......................... 67

16.3.2 Searching for Structural Elements ................................................68

16.4 Saving Data and Generating Reports ........................................ 69

16.4.1 Use of Barcode Scanners and RFID Readers .................................70

17 Operating and Display Elements ....................................71

18 LED Indications, Mains Connections and Potential Differen-

ces ..................................................................................73

19 Characteristic Values ...................................................... 82

20 Maintenance ...................................................................87

20.1 Firmware Revision and Calibration Information ....................... 87

20.2 Rechargeable Battery Operation, and Charging ....................... 87

20.2.1 Charging Procedure with Charger for Z502R ................................. 87

20.3 Fuses ........................................................................................ 87

20.4 Housing ..................................................................................... 87

21 Appendix .........................................................................88

21.1

Tables for the determination of maximum or minimum display values un-

der consideration of maximum measuring uncertainty: .......................88

21.2 At which values should/must an RCD actually be tripped?

Requirements for Residual Current Devices (RCDs) .................90

21.3 Testing Electrical Machines per DIN EN 60204 –

Applications, Limit Values ......................................................... 91

21.4 Periodic Testing per DGUV provision 3 (previously BGV A3) – Limit

Values for Electrical Systems and Operating Equipment .......... 92

21.5 List of Abbreviations and their Meanings ................................. 93

21.6 Keyword Index .......................................................................... 94

21.7 Bibliography .............................................................................. 95

21.7.1 Internet Addresses for Additional Information ............................... 95

22 Repair and Replacement Parts Service

Calibration Center and Rental Instrument Service .........96

23 Recalibration ..................................................................96

24 Product Support .............................................................96

1 Scope of delivery

1Test instrument 1 Earthing contact plug insert (country-specific) 1 2-pole measuring adapter and 1 cable for expansion into a

3-pole adapter (PRO-A3-II) 2 Alligator clips 1 Shoulder strap 1 Compact Master Battery Pack (Z502H) 1 Charger Z502R 1 DAkkS calibration certificate 1USB cable 1 Condensed operating instructions 1 Supplement Safety Information – Detailed operating instructions for download from our website

at www.gossenmetrawatt.com

2 Applications

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 PROFITEST MASTER and SECULIFE IP measuring and test instruments allow for quick and efficient testing of protective measures in accordance with DIN VDE 0100, part 600:2008 voltage installations; tests – initial tests), as well as (Austria), NIV/NIN SEV 1000 (Switzerland) and other country-spe-

(Erection of low-

ÖVE-EN 1

cific regulations. The test instrument is equipped with a microprocessor and complies with IEC 61557/DIN EN 61557/VDE 0413 regulations:

Part 1: General requirements Part 2: Insulation resistance Part 3: Loop resistance Part 4: Part 5: Earth resistance Part 6: Effectiveness of residual current devices (RCD) in TT, TN

Part 7: Phase sequence Part 10:Electrical safety in low-voltage systems up to 1000 V AC

Part 11:Effectiveness of type A and type B residual current moni-

The test instrument is especially well suited for:

•System setup

• Initial start-up

• Periodic testing

• Troubleshooting in electrical systems All of the values required for approval reports (e.g. for ZVEH) can

be measured with this instrument. All acquired data can be archived, in addition to the measurement

and test reports which can be printed out at a PC. This is of special significance where product liability is concerned.

The applications range of the test instruments covers all alternating and three-phase current systems with nominal voltages of 230 V / 400 V (300 V / 500 V) and nominal frequencies of 16 50 / 60 / 200 / 400 Hz.

The following can be measured and tested with the instruments:

• Voltage / frequency / phase sequence

• Loop impedance / line impedance

• Residual current devices (RCDs)

• Insulation monitoring devices (IMDs) (only

• Residual current monitoring devices (RCMs) (only MXTRA)

• Earthing resistance / earth electrode potential

• Standing surface insulation resistance / insulation resistance

• Earth leakage resistance

• Low-value resistance (potential equalization)

• Leakage currents with current transformer clamp

• Residual voltage (only MXTRA)

• Voltage drop

• Leakage current with leakage current adapter

• Meter start-up (not

• Cable length

Refer to section 21.3 regarding testing of electrical machines in accordance with DIN EN 60204.

Refer to section 21.4 regarding periodic testing in accordance with DGUV provision 3 (previously BGV A3).

Resistance of earth connection and equipotential bonding

and IT systems

and 1500 V DC – Equipment for testing, measuring or monitoring of protective measures

tors (RCMs) in TT, TN and IT systems

MXTRA

SECULIFE IP

)

/3/

)

2.1 Using Cable Sets and Test Probes

• 2 or 3-pole measuring adapter included

• 2-pole measuring adapter with 10 m cable as optional accessory: PRO-RLO II (Z501P)

• KS24 cable set as optional accessory (GTZ3201000R0001)

Measurements per DIN EN 61010-031 may only be performed in environments in accordance with measuring categories III and IV with the safety cap attached to the test probe at the end of the measurement cable.

In order to establish contact inside 4 mm jacks, the safety caps have to be removed by prying open the snap fastener with a pointed object (e.g. the other test probe).

GMC-I Messtechnik GmbH 5

2.2 Overview of Features Included

with PROFITEST MASTER & SECULIFE IP Device Variants

PROFITEST ... (Article Number)

PRO

TECH+

XTRA

(M520R)

(M520S)

MBASE+

Testing of residual current devices (RCDs)

measurement without tripping RCD ✓✓✓✓✓

Tripping time measurement Measurement of tripping current I Selective, SRCDs, PRCDs, type G/R ✓✓✓✓ AC/DC sensitive RCDs, type B, B+ and EV/MI —— ✓✓ Testing of IMDs ——— ✓ Testing of RCMs ——— ✓ — Testing for N-PE reversal

Measurement of loop impedance Z

Fuse table for systems without RCDs ✓✓✓✓ Without tripping the RCD, fuse table ——✓✓ With 15 mA test current

RCD

Earthing resistance RE (mains operation)

I-U measuring method (2/3-wire measuring method via measuring adapter: 2-wire/2-wire + probe)

Earthing resistance RE (battery operation)

3 or 4-wire measurement via PRO-RE adapter

Soil resistivity

(4-wire measurement via PRO-RE adapter)

Selective earthing resistance RE (mains operation)

with 2-pole adapter, probe, earth electrode and current clamp sensor (3-wire measuring method)

Selective earthing resistance RE (battery operation)

with probe, earth electrode and current clamp sensor (4-wire measuring method via PRO-RE adapter and current clamp sensor)

Earth loop resistance R

with 2 clamps (current clamp sensor direct and current clamp transformer via PRO-RE/2 adapter)

Measurement of equipotential bonding R

automatic polarity reversal

Insulation resistance R

variable or rising test voltage (ramp)

Voltage U

Special measurements Leakage current (with clamp) I Phase sequence ✓✓✓✓ Earth leakage resistance R Voltage drop (ΔU) ✓✓✓✓ Standing-surface insulation Z Meter start-up (kWh-Test) ✓✓✓✓— Leakage current with PRO-AB adapter (IL) Residual voltage test (Ures) Intelligent ramp (ta + ΔI) Electric vehicles at charging stations

(IEC 61851) Report generation of fault simulations on

PRCDs with PROFITEST PRCD adapter

Features Selectable user interface language Memory (database for up to 50,000 objects) ✓✓✓✓ Automatic test sequence function ✓2✓ ✓✓ RS 232 port for RFID/barcode scanner USB port for data transmission ✓✓✓✓ Interface for Bluetooth® ——✓✓ ETC user software for PC ✓✓✓✓ Measuring category: CAT III 600 V / CAT IV

300 V DAkkS calibration ✓✓✓✓

The so-called live measurement is only advisable if there is no bias current within

the system. Only suitable for motor circuit breaker with low nominal current

currently available languages: D, GB, I, F, E, P, NL, S, N, FIN, CZ, PL

/ U

L-N

without tripping the

ρE (battery operation)

ELOOP

INS

/ U

L-P E

N-PE

/ Z

L-P E

L-N

— ✓ — ✓ —

(battery operation)

— ✓ — ✓ —

/ f ✓✓✓✓

, I

AMP

E(ISO)

——— ——— ———

——✓✓—

———

(M520N)

✓✓✓✓ ✓✓✓✓

✓✓✓✓

(M520P)

SECULIFE IP

✓ ✓ — ✓ —

✓

—

3 Safety Features and Precautions

This instrument fulfills all requirements of applicable European and national EC directives. We confirm this with the CE mark. The relevant declaration of conformity can be obtained from GMC-I Messtechnik GmbH.

(M520U)

The electronic measuring and test instrument is manufactured and tested in accordance with safety regulations IEC 61010-1/ DIN EN 61010-1/VDE 0411-1 and EN 61557.

✓

Safety of the operator, as well as that of the instrument, is only

✓

assured when it is used for its intended purpose.

✓ ✓

Read the operating instructions thoroughly and carefully before using

✓

your instrument. Follow all instructions contained therein. Make sure that the operating instructions are available to all users of the instrument.

✓

Tests may only be executed by a qualified electrician.

Grip and hold the test plug and test probes securely when they

✓

have been inserted, for example, into a socket. Danger of injury

✓

exists if tugging at the coil cord occurs, which may cause the test

✓

plug or test probes to snap back.

The measuring and test instrument may not be placed into service:

✓

• If the battery compartment lid has been removed

• If external damage is apparent

• If connector cable or measuring adapters are damaged

•If the instrument no longer functions flawlessly

• After a long period of storage under unfavorable conditions (e.g. humidity, dust, temperature)

✓

Exclusion of Liability

When testing systems with RCCBs, the latter may switch off. This may

occur even though the test does not normally provide for it. Leakage currents may be present which, in combination with the test current of the test instrument, exceed the shutdown threshold value of the RCCB. PCs which are operated in proximity to such RCCB systems may switch off as a consequence. This may result in inadvertent loss of data. Before conducting tests, precautions should therefore be taken to ensure that all data and programs are adequately saved, and the computer should be switched off if

✓

necessary. The manufacturer of the test instrument assumes no liability for any direct or indirect damage to equipment, comput-

✓

ers, peripheral equipment or data bases when performing tests.

✓

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.

Any warranty claims will be forfeited when the warranty seal has been damaged or removed.

Meaning of Symbols on the Instrument

Warning concerning a point of danger

✓ ✓ ✓ ✓ ✓ ✓ ✓

✓

(Attention, observe documentation!)

Protection class II device

Charging socket for extra-low direct voltage (charger Z502R)

Attention! Only rechargeable batteries may be inserted when the charger is connected.

This device may not be disposed of with the trash. Further information regarding the WEEE mark can be accessed on the Internet at www.gossenmetrawatt.com by entering the search term “WEEE”.

EC mark of conformity

6 GMC-I Messtechnik GmbH

Any warranty claims will be forfeited when the warranty

Attention!

Note

Attention!

XY123

2012-06

D-K

15080-01-01

Consecutive number

Registration number Date of calibration (year – month)

Deutsche Akkreditierungsstelle GmbH – calibration lab

BAT

seal has been damaged or removed.

Calibration Seal (blue seal):

See also “Recalibration” on page 96.

Data Backup

We advise you to regularly transmit your stored data to a PC in order to prevent potential loss of data in the test instrument.

We assume no responsibility for any data loss. We recommend the following PC software programs for data

processing and management:

•ETC

• E-Befund Manager (Austria)

•Protokollmanager

• PS3 (documentation, management, report generation and monitoring of deadlines)

• PC.doc-WORD/EXCEL (report and list generation)

• PC.doc-ACCESS (test data management)

4 Initial Start-Up

4.1 Preparation for use

Before putting the test instrument into service and using it for the first time, the lamination sheets must be removed from the two sensor surfaces (finger contacts) of the test plug in order to ensure that contact voltage is reliably detected.

When Using a Battery Holder:

It is imperative that you pay attention to the correct polarity when inserting the rechargeable batteries. If a battery has been inserted with incorrect polarity, it is not detected by the instrument and may lead to battery leakage. Individual rechargeable batteries may only be charged externally.

➭ Slide the new battery pack/filled battery holder into the battery

compartment. The holder can only be inserted to its proper position.

➭ Replace the lid and re-tighten the screw.

4.3 Switching the Instrument On/Off

The test instrument is switched on by pressing the ON/START key. The menu which corresponds to the momentary selector switch position is displayed.

The instrument can be switched off manually by simultaneously pressing the MEM and HELP keys.

After the period of time selected in the SETUP menus has elapsed, the instrument is switched off automatically (see “Device Settings”, section 4.6.

4.4 Battery Test

If battery voltage has fallen below the permissible lower limit, the pictograph shown at the right appears. “Low Batt!!!” is also displayed along with a battery symbol. The instrument does not function if the batteries have been depleted excessively, and no display appears.

4.5 Charging the Battery Pack in the Tester

4.2 Installing or Replacing the Battery Pack

Before opening the battery compartment, disconnect the instrument from the measuring circuit (mains) at all poles!

See also section 20.2 on page 87 concerning charging the Kompkt Akku Pack Master (Z502H) and the battery charger Z502R.

Use Kompakt Akku Pack Master (Z502H), if possible, which is either included in the standard equipment or available as an accessory, with heat-sealed battery cells. Do not use any battery holders which can

be filled with individual batteries. This ensures that always a complete set of batteries is replaced and all rechargeable batteries are inserted with correct polarity in order to prevent leakage from the batteries.

Only use commercially available battery packs if you charge them externally. The quality of these sets cannot be verified and this may, in

unfavourable cases, lead to heating and deformation (during the charging in the device). Dispose the battery packs or the individual rechargeable batteries in an environmentally sound fashion when their service life has nearly expired (approx. 80% charging capacity).

➭ Loosen the slotted screw for the battery compartment lid on

the back and remove the lid.

➭ Remove the discharged battery pack or the battery holder.

Use only the charger Z502R to charge the Kompakt Akku- Pack Master (Z502H) which has already been inserted into the test instrument.

Make sure that the following conditions have been fulfilled before connecting the charger to the charging socket:

– Kompakt Akku-Pack Master (Z502H) has been

installed, no commercially available battery packs, no individual rechargeable batteries, no standard batteries

– The test instrument has been disconnected from the

measuring circuit at all poles

– The instrument must remain off during charging.

Refer to section 20.2.1 with regard to charging the battery pack which has been inserted into the tester.

If the batteries or the battery pack have not been used or recharged for a lengthy period of time (> 1 month), thus resulting in excessive depletion:

Observe the charging sequence (indicated by LEDs at the charger) and initiate a second charging sequence if necessary (disconnect the charger from the mains and from the test instrument to this end, and then reconnect it).

Please note that the system clock stops in this case and must be set to the correct time after the instrument has been restarted.

GMC-I Messtechnik GmbH 7

4.6 Device Settings

SETUP

LED and LCD test menu

Rotary switch balancing

Brightness/contrast menu

Software revision level Calibration date

Display: date / time

Display: automatic shutdown

of display illumination after 15 s.

of the tester after 60 s.

Time, language, profiles

and battery test menu

Return to main menu

MAINS LED: test green

MAINS LED: test red

UL/RL LED: test red

RCD-FI LED: test red

Cell test

Inverse cell test

Hide all pixels

Show all pixels

Acoustic signal test

Return to main menu

Increase brightness

Bluetooth

submenu →

DB-MODE submenu →

Brightness/contrast submenu →

Set time →

Profiles for

Default settings

→

distribution structures

→

User interface language

→

3a 3b

Set date →

On-time for display illumination / tester

Return to submenu

Display Illumination On-time

Bluetooth® and Brightness Plus Contrast Settings Time, On-Time and Default Settings

Menu Selection for Operating Parameters

LED tests LCD and Acoustic Signal Tests

Test Instrument On-Time

Select inspector (change via ETC)

No automatic shut-down, continuously on

logged in test technician

8 GMC-I Messtechnik GmbH

LED and LCD test menu

Rotary switch balancing

Brightness/contrast menu

Software revision level Calibration date

Display: date / time

Display: automatic shutdown

of display illumination after 15 s.

of the tester after 60 s. Time, language, profiles

and battery test menu

Return to main menu

Bluetooth

submenu →

Brightness/contrast submenu →

Set time →

Profiles for

Default settings

→

distribution structures

→

User interface language

→

3a 3b

Set date →

On-time for display illumination / tester

Set time

Menu Selection for Operating Parameters

Bluetooth® and Brightness Plus Contrast Settings Set Time, Language, Profiles, Acoustic Signal

Set date

Select time

Increase

hours

Activate settings

minutes

Increase seconds

Return to submenu

Decrease

hours

minutes

Decrease

seconds

Select date

Increase

day

Activate settings

month

Increase year

Return to submenu

Decrease

day

month

Decrease

year

Enter and select a new inspector (change/deletion via ETC only)

logged in test technician

DB-MODE submenu

→

GMC-I Messtechnik GmbH 9

Significance of Individual Parameters

Note

Attention!

2 2

3d3e3f

Return to previous menu

Increase brightness

Decrease brightness

Increase contrast

Decrease contrast

➭ Press ESC in order to return to the main menu.

Test Instrument On-Time

The period of time after which the test instrument is automatically shut off can be selected here. This selection has a considerable influence on the service life and the charging status of the batteries.

On-Time for LCD Illumination

The period of time after which LCD illumination is automatically shut off can be selected here. This selection has a considerable influence on the service life and the charging status of the batteries.

Submenu: Rotary Switch Balancing

Proceed as follows in order to precision adjust the rotary switch:

1 Press the TESTS Rotary Switch / Battery Test softkey in order to

access the rotary switch balancing menu. 2 Then press the softkey with the rotary switch symbol. 3 Turn the rotary switch clockwise to the next respective measuring

function (IDN first after SETUP). 4 Press the softkey which is assigned to the rotary switch at the LCD.

After pressing this softkey, the display is switched to the next mea-

suring function. Labeling in the LCD image must correspond to the

actual position of the rotary switch.

level bar in the LCD image of the rotary switch should be

The located in the middle of the black field, and is supplemented at the right-hand side with a number within a range of -1 to 101. This value should be between 45 and 55. In the case of -1 or 101, the position of rotary knob does not coincide with the measuring function selected at the LCD.

5 If the displayed value is not within this range, readjust the

position by pressing the readjust softkey. A brief acoustic

signal acknowledges readjustment.

If labeling in the LCD image of the rotary switch does not correspond with its actual position, a continuous acoustic signal is generated as a warning when the readjust softkey is pressed.

6 Return to point 2 and continue. Repeat this procedure until all

rotary switch functions have been tested, and if necessary

readjusted.

➭ Press ESC in order to return to the main menu.

Submenu: Battery Level Query

Data and sequences are lost when the language, the profile or DB mode is changed, or if the instrument is reset to default values!

Back up your structures, measurement data and sequences to a PC before pressing the respective key. The prompt window shown at the right asks you to confirm deletion.

User Interface Language (CULTURE)

➭ Select the desired country setup with the appropriate country

code. Attention: all existing structures, data and sequences are de-

leted, see note above!

Profiles for Distributor Structures (PROFILES)

The profiles are laid out in a tree structure. The tree structure for the utilized PC evaluation program may differ from that of the PROFITEST MASTER. For this reason, the PROFITEST MASTER provides the user with the opportunity of adapting this structure.

Selecting a suitable profile determines which object combinations are made possible. For example, this makes it possible to create a distributor which is subordinate to another, or to save a measurement to a given building.

➭ Select the PC evaluation program you intend to use.

Attention: all existing structures, data and sequences are deleted, see note above!

If you have not selected a suitable PC evaluation program and, for example, if measured value storage to the selected location within the structure is not possible, the pop-up window shown at the right appears.

Default Settings (GOME SETTING)

The test instrument is returned to its original default settings when this key is activated.

Attention: all existing structures, data and sequences are deleted, see note above!

Adjusting Brightness and Contrast

If battery voltage has dropped to 8.0 V or less, the UL/RL LED lights up red and an acoustic signal is generated as well.

10 GMC-I Messtechnik GmbH

Measuring Sequence

If battery voltage drops to below 8.0 V during the course of a measuring sequence, this is indicated by means of a pop-up window only. Measured values are invalid. The measurement results cannot be saved to memory.

DB MODE – Presenting the Database in Text Mode or ID Mode

Note

When Bluetooth® is active (= ON), the

Bluetooth

icon

appears in the header instead of BAT, and an interface icon appears instead of MEM.

A closed interface icon indicates an active Bluetooth connection with data transmission.

Figure 1

Figure 2

Figure 3 Figure 4

The DB MODE functions are available as of firmware version 01.05.00 of the test instrument and as of ETC version 01.31.00.

Creating Structures in TXT MODE

By default, the database in the test instrument is set to text mode, „TXT“ is indicated in the header. You can create structural elements in the test instrument und add designations in plain text, e. g. Customer XY, Distributor XY and Electrical Circuit XY.

Creating Structures in ID MODE

Alternatively, you can work in the ID mode. „ID“ is indicated in the header. You can create structural elements in the test instrument which can be labelled with ID numbers at your discretion.

Switching Bluetooth® On/Off (

only)

MTECH+/MXTRA/

SECULIFE IP

When data are transferred from the test instrument to the PC or ETC, ETC always retains the presentation (TXT or ID mode) selected in the test instrument. When data are transferred from the PC or ETC to the test instrument, the test instrument always retains the presentation selected in ETC. So, the respective receiver of the data always adopts the presentation of the sender.

In the test instrument, structures can either be created in text mode or in ID mode. In the ETC software, however, designations and ID numbers are always allocated.

If no texts or ID numbers have been allocated when creating the structures in the test instrument, ETC generates the missing entries automatically. They can be subsequently edited in the ETC software and transferred back to the test instrument if required.

If your PC is equipped with a Bluetooth® interface, wireless communication is possible between the MTECH+, MXTRA or SECULIFE IP and ETC user software for the transfer of data and test structures.

One-time only authentication of the respective PC with the test instrument is a prerequisite for wireless data exchange. The function selector switch must be in the SETUP position to this end. The correct Bluetooth before each data transmission sequence.

Activate the Bluetooth® interface at the test instrument during data transmission only. Interface power consumption reduces battery service life when activated continuously.

COM port must also be selected in ETC

GMC-I Messtechnik GmbH 11

If several test instruments are within range during authentication, the respective name should be changed in order to rule out the possibility of a mix-up. Blanks may not be used. The default pin code, namely “0000”, can be changed, but this is unnecessary as a rule. As shown in figure 3, the MAC address of the test instrument is displayed in the footer as hardware information.

Render your test instrument visible prior to authentication, and subsequently invisible for security reasons.

Steps Required for Authentication

Note

Make sure that the test instrument is within range of the PC (roughly 5 to 8 meters). Activate Bluetooth (see figure 1) and at your PC.

The function selector switch must be in the SETUP position to this end.

Make sure that the test instrument (see figure 3) and your PC are visible for other Bluetooth

devices: In the case of the test instrument, the word “visible” must be dis- played underneath the eye symbol. Use your Bluetooth

PC driver software to add a new Bluetooth® device. In most cases, this is accomplished with the help of the “Add new connection” or “Add Bluetooth® device” button.

The following steps may vary, depending on which Bluetooth driver software is used. Basically, a PIN code must be entered at the PC. The default setting for the PIN code is “0000”, and is displayed in the main Bluetooth

menu (see figure 1) at the test instrument. Subsequently, or previously, an authentication message must be acknowledged at the test instrument (see figure 4).

If authentication has been successful, a corresponding message appears at the test instrument. Furthermore, the authenticated PC is displayed in the “Trusted Devices” menu at the test instrument (see figure 2).

The MTECH+, MXTRA or the SECULIFE IP should now also be listed as a device in your Bluetooth tion is also provided here regarding the utilized COM port. With the help of your Bluetooth

PC driver software. Further informa-

PC driver software, you’ll need to find out which COM port is used for the Bluetooth port is frequently displayed after authentication, but if this is not the case, this information provided by your Bluetooth® PC driver software.

ETC includes a function for automatically ascertaining the utilized COM port after successful authentication has been completed (see screenshot below).

If the test instrument is within range of your PC (5 to 8 meters), wireless data exchange can now be initiated with the help of ETC by clicking Bluetooth

in the “Extras” menu. The number of the correct COM port (e.g. COM40) must be entered to ETC when data exchange is started (see screenshot below).

Alternatively, the COM port number can be selected automatically by clicking the “Find Bluetooth Device” item in the menu.

at the test instrument

connection. This

Firmware Revision and Calibration Information (example)

➭ Press any key in order to return to the main menu.

Firmware Update with the MASTER Updater

The layout used for the entire range of the test instruments makes it possible to adapt instrument software to the latest standards and regulations. Beyond this, suggestions from customers result in continuous improvement of the test instrument software, as well as new functions.

In order to assure that you can take advantage of all of these benefits without delay, the MASTER Updater allows you to quickly and completely update your test instrument software on-site.

The user interface can be set to either English, German or Italian.

As a registered user, you’re entitled to download the MASTER Updater and the current firmware version free of charge from the myGMC page.

Entering and Selecting a New Inspector

See also section 5.7 page 15 regarding the entry of a text.

12 GMC-I Messtechnik GmbH

5 General Notes

Note

Attention!

5.1 Connecting the Instrument

For systems with earthing contact sockets, connect the instrument to the mains with the test plug to which the appropriate, country-specific plug insert is attached. Voltage between phase conductor L and the PE protective conductor may not exceed 253 V! Poling at the socket need not be taken into consideration. The instrument detects the positions of phase conductor L and neutral conductor N and automatically reverses polarity if necessary. This does not apply to the following measurements:

– Voltage measurement in switch position U – Insulation resistance measurement – Low-value resistance measurement

The positions of phase conductor L and neutral conductor N are identified on the plug insert.

If measurement is to be performed at three-phase outlets, at distribution cabinets or at permanent connections, the measuring adapter must be attached to the test plug (see also table 16.1). Connection is established with the test probes: one at PE or N and the other at L.

The 2-pole measuring adapter must be expanded to 3 poles with the included measurement cable for the performance of phase sequence testing.

Contact voltage (during RCCB testing) and earthing resistance can be, and earth-electrode potential, standing surface insulation resistance and probe voltage must be measured with a probe. The probe is connected to the probe connector socket with a 4 mm contact protected plug.

5.2 Automatic Settings, Monitoring and Shut-Off

The test instrument automatically selects all operating conditions which it is capable of determining itself. It tests line voltage and frequency. If these lie within their valid nominal ranges, they appear at the display panel. If they are not within nominal ranges, prevailing voltage (U) and frequency (f) are displayed instead of U and f

Contact voltage which is induced by test current is monitored for each measuring sequence. If contact voltage exceeds the limit value of > 25 V or > 50 V, measurement is immediately interrupted. The U

If battery voltage falls below the allowable limit value the instrument cannot be switched on, or it is immediately switched off.

The measurement is interrupted automatically, or the measuring sequence is blocked (except for voltage measuring ranges and phase sequence testing) in the event of:

• Impermissible line voltages (< 60 V, > 253 V / > 330 V / > 440 V or > 550 V) for measurements which require line voltage

• Interference voltage during insulation resistance or low resistance measurements

• Overheating at the instrument. As a rule, excessive temperatures only occur after approximately 50 measurement sequences at intervals of 5 seconds, when the rotary selector switch is set to the Z position. If an attempt is made to start a measuring sequence, an appropriate message appears at the display panel.

The instrument only switches itself off automatically after completion of an automatic measuring sequence, and after the predetermined on-time has expired (see sectionl 4.3). On-time is reset to its original value as defined in the setup menu, as soon as any key or the rotary selector switch is activated.

The instrument remains on for approximately 75 seconds in addition to the preset on-time for measurements with rising residual current in systems with selective RCDs.

The instrument always shuts itself off automatically!

LED lights up red.

L/RL

L-PE

oder Z

L-N

5.3 Measurement Value Display and Memory

The following appear at the display panel:

• Measurement values with abbreviations and units of measure

• Selected function

• Nominal voltage

• Nominal frequency

• Error messages Measurement values for automatic measuring sequences are

stored and displayed as digital values until the next measurement sequence is started, or until automatic shut-off occurs. If the upper range limit is exceeded, the upper limit value is displayed and is preceded by the “>” symbol (greater than), which indicates measurement value overrun.

The depiction of LEDs in these operating instructions may vary from the LEDs on the actual instrument due to product improvements.

5.4 Testing Earthing Contact Sockets for Correct Connection

The testing of earthing contact sockets for correct connection prior to protective measures testing is simplified by means of the instrument’s error detection system.

The instrument indicates improper connection as follows:

• Impermissible line voltage (< 60 V or > 253 V): The MAINS/NETZ LED blinks red and the measuring sequence is disabled.

• Protective conductor not connected or potential to earth ≥ 50 V at ≥ 50 Hz (switch position U – single-phase measurement): If the contact surfaces are touched (finger contact*) while PE is being contacted (via the country-specific plug insert, e.g. SCHUKO, as well as via the PE test probe at the 2-pole adapter) PE appears (only after a test sequence has been started). The U

the test plug must be touched directly with the finger/palm without any skin protection applied, see also section 4.1.

* for reliably detecting the contact voltages, both sensor surfaces at

• Neutral conductor N not connected (during mains dependent measurements): The MAINS/NETZ LED blinks green.

• One of the two protective contacts is not connected: This is checked automatically during testing for contact current U leads to one of the following displays, depending upon poling

. Poor contact resistance at one of the contacts

IΔN

of the plug: – Display at the connection pictograph:

PE interrupted (x), or underlying protective conductor bar interrupted with reference to keys at the test plug

Cause: voltage measuring path interrupted Consequence: measurement is disabled

– Display at the connection pictograph:

Overlying protective conductor bar interrupted with reference to keys at the test plug

Cause: current measuring path interrupted Consequence: no measured value display

See also “LED Indications, Mains Connections and Potential Differences” beginning on page 73.

Reversal of N and PE in a system without RCCBs cannot be detected and is not indicated by the instrument. In a system including an RCCB, the RCCB is tripped during “contact voltage measurement without RCCB tripping” (automatic Z PE are reversed.

and RCD/FI LEDs light up red as well.

L/RL

measurement), insofar as N and

L-N

GMC-I Messtechnik GmbH 13

5.5 Help Function

The following information can be displayed for each switch position and basic function after it has been selected with the rotary selec-

tor switch:

• Wiring diagram

• Measuring range

• Nominal range of use and measuring uncertainty

• Nominal value

➭ Press the HELP key in order to query online help: ➭ If several pages of help are available for the respective mea-

suring function, the HELP key must be pressed repeatedly.

➭ Press the ESC key in order to exit online help.

5.6 Setting Parameters or Limit Values using RCD Measurement as an Example

1 Access the submenu for setting the desired parameter. 2 Select a parameter using the ↑ or ↓ scroll key. 3 Switch to the setting menu for the selected parameter with the → scroll

key.

4 Select a setting value using the ↑ or ↓ scroll key. 5 Acknowledge the setting value with the ↵ key. This value is transferred to

the setting menu.

6 The setting value is not permanently accepted for the respective measure-

ment until menu. You can return to the main menu by pressing ESC instead of without accepting the newly selected value.

✓ is pressed, after which the display is returned to the main

✓,

Parameter Lock (plausibility check)

Individually selected parameter settings are checked for plausibility before transfer to the measurement window.

If you select a parameter setting which doesn’t make sense in combination with other parameter settings which have already been entered, it’s not accepted. The previously selected parameter setting remains unchanged.

Remedy: Select another parameter setting.

14 GMC-I Messtechnik GmbH

5.7 Freely Selectable Parameter Settings or Limit Values

Note

Select value / U/M.

↵ Accept value / U/M.

Delete characters.

✓ Save value (to list).

Select editable value.

Select the EDIT menu.

L1-N L2-N

L3-N L1-L2 L2-L3 L1-L3

L1-PE L2-PE L3-PE

N-PE

L+N-PE

L1-N L2-N

L3-N L1-L2 L2-L3 L1-L3

L-PE

L-N

L1-PE L2-PE L3-PE

iso

L1-PE L2-PE L3-PE

N-PE

L1-N L2-N

L3-N L1-L2 L2-L3 L1-L3

L1-N L2-N

L3-N L1-L2 L2-L3 L1-L3

L1-PE L2-PE L3-PE

N-PE

L+N-PE

L1-N L2-N

L3-N L1-L2 L2-L3 L1-L3

L-PE

L-N

L1-PE L2-PE L3-PE

iso

L1-PE L2-PE L3-PE

N-PE

L1-N L2-N

L3-N L1-L2 L2-L3 L1-L3

In addition to fixed values, other values can be freely selected within predefined limits for certain parameters, if the symbol for the EDIT menu (3) appears at the end of the list of setting values.

Freely Selecting a Limit Value or Nominal Voltage

5.8 2-Pole Measurement with Fast or Semiautomatic Polarity Reversal

Fast, semiautomatic polarity reversal is possible for the following measurements:

• Voltage U

• Loop impedance Z

• Internal line resistance measurement Z

• Insulation resistance, R

LP-E

L-N

INS

Fast Polarity Reversal at the Test Plug

The polarity parameter is set to AUTO. Fast and convenient switching amongst all polarity variants, or

switching to the parameter settings submenu, is possible by pressing the I

key at the instrument or the test plug.

ΔN

1 Open the submenu for setting the desired parameter (no figure, see section

5.6).

2 Select parameter (U

5.6).

3 Select a setting value with the help of the icon and the ↑ or ↓ scroll

key.

4 Select the edit menu: Press the key with the icon.

5 Select the desired value or unit of measure with the LEFT or RIGHT scroll

key. The value or unit of measure is accepted by pressing the ↵ key. The entire value is acknowledged by selecting The new limit value or nominal value is added to the list.

GMC-I Messtechnik GmbH 15

Observe predefined limits for the new setting value. New, freely selected limit values or nominal values included in the parameters list can be deleted/edited at the PC with the help of ETC software. When the upper limit value is exceeded, this value is accepted (in the example: 65 V), when the limit value is fallen short of, the predefined lower limit value (25 V) is accepted.

) using the ↑ or ↓ scroll key (no figure, see section

✓ and then pressing the ↵ key.

Semiautomatic Polarity Reversal in Memory Mode

The polarity parameter is set to AUTO. If testing is to be conducted with all polarity variants, automatic

polarity changing takes place after each measurement when the “Save” button is pressed.

Polarity variants can be skipped by pressing the I instrument or the test plug.

key at the

ΔN

6 Measuring Voltage and Frequency

Select Measuring Function

Switch Between Single and 3-Phase Measurement

Press the softkey shown at the left in order to switch back and forth between single and 3-phase measurement. The selected phase measurement is displayed inversely (white on black).

6.1 Single-Phase Measurement

Connection

6.1.2 Voltage between L – PE, N – PE and L – L with 2-Pole Adapter Connection

Press the softkey shown at the left in order to switch back and forth between the country-specific plug insert, e.g. SCHUKO, and the 2-pole adapter. The selected connection type is displayed inversely (white on black).

Refer to section 5.8 regarding 2-pole measurement with fast or semiautomatic polarity reversal.

A probe must be used in order to measure probe voltage U

6.1.1 Voltage Between L and N (U a

nd N and PE

) with Country-Specific Plug Insert, e.g.

N-PE

L-N

L and PE

L-P E

)

SCHUKO

S-PE

16 GMC-I Messtechnik GmbH

6.2 3-Phase Measurement (line-to-line voltage) and Phase

Note

Clockwise

Counter-Clockwise

ΔN

-------

ΔN

(measurement up to 1000 ms)

Sequence

Connection

The measuring adapter (2-pole) is required in order to connect the instrument, and can be expanded to a 3-pole measuring adapter with the included measurement cable.

➭ Press softkey U3~.

7 Testing RCDs

The testing of residual current devices (RCDs) includes:

• Visual inspection

•Testing

• Measurement Use the test instrument for testing and measurement.

Measuring Method

The following must be substantiated by generating a fault current downstream from the RCD:

• That the RCD is tripped no later than upon reaching its nominal fault current value

• That the continuously allowable contact voltage value U agreed upon for the respective system is not exceeded

This is achieved by means of:

• Contact voltage measurement, 10 measurements with fullwaves and extrapolation of I

ΔN

A clockwise phase sequence is required at all 3-phase electrical outlets.

• Measurement instrument connection is usually problematic with CEE outlets due to contact problems. Measurements can be executed quickly and reliably without contact problems with the help of the Z500A variable plug adapter set available from GMC.

• Connection for 3-wire measurement, plug L1-L2-L3 in clockwise direction as of PE socket

Direction of rotation is indicated by means of the following displays:

See section 18 regarding all indications for the mains connection test.

• Substantiation of tripping within 400 ms or 200 ms with IΔN

• Substantiation of tripping with current rising residual current: This value must be between 50% and 100% of I about 70%).

(usually

ΔN

• No premature tripping with the test instrument, because testing is begun with 30% residual current (if no bias current occurs within the system).

RCD/FI Table Type of Differential

Current

Suddenly occurring

Alternating current

Slowly rising

Correct RCD/RCCB Function

Typ e AC

✔

Typ e A, F

✔✔✔

Typ e B*/

B+*

Type EV*

Voltage Polarity

If the installation of single-pole switches to the neutral conductor is prohibited by the standards, voltage polarity must be tested in order to assure that all existing single-pole switches are installed to the phase conductors.

Pulsating direct current

Direct current

Direct current up to 6 mA

* PROFITEST MTECH+, PROFITEST MXTRA & SECULIFE IP

Suddenly occurring

Slowly rising

✔✔✔

✔✔

GMC-I Messtechnik GmbH 17

✔

Test Standard

Note

Attention!

ΔN

Nominal residual

Type 1: RCD, SRCD, PRCD etc.

Nominal current: 6 ... 125 A

Type 2: AC , A/F , B/B+ *

EV/MI

* Type B/B+/EV/MI = AC/DC sensitive

current:

10 ... 500 mA

Phase displacement: 0°/180°

X times tripping current:

Negative/positive half-wave

Negative/positive direct current

1, 2, 5 (I

ΔN

max. 300 mA)

Waveform:

Connection:

without/with probe

System type:

TN/TT, IT

Contact voltage:

Time to trip:

< 25 V, < 50 V, < 65 V

The following must be substantiated per DIN VDE 0100 part 600: 2008:

– Contact voltage occurring at nominal residual current may not

exceed the maximum allowable value for the system.

– Tripping of the RCCB must occur within 400 ms (1000 ms for

selective RCDs) at nominal residual current.

7.1 Measuring Contact Voltage (with reference to nominal residual current) with

/3 Nominal Residual Current and

Tripping Test with Nominal Residual Current

Select Measuring Function

Important Notes

•The PROFITEST MASTER allows for simple measurements at all types of RCDs. Select RCD, SRCD, PRCD etc.

• Measurement must be executed at one point only per RCD (RCCB) within the connected electrical circuits. Low-resistance continuity must be substantiated for the protective conductor at all other connections within the electrical circuit (R or U

• The measuring instruments often display a contact voltage of

0.1 V in TN systems due to low protective conductor resistance.

• Be aware of any bias currents within the system. These may cause tripping of the RCDs during measurement of contact voltage U ments with rising current: Display = I

• Selective RCDs identified with an can be used as the sole means of protection for automatic shutdown if they adhere to the same shutdown conditions as non-selective RCDs (i.e. t

< 400 ms). This can be substantiated by measuring shut-

down time.

• Type B RCDs may not be connected in series with type A RCDs.

, or may result in erroneous displays for measure-

- I

bias_current

Bias Magnetization Only AC measurements can be performed with the 2pole adapter. Suppression of RCD tripping by means of bias magnetization with direct current is only possible via a country-specific plug insert, e.g. SCHUKO, or the 3pole adapter.

Connection

Set Parameters for I

ΔN

Measurement With or Without Probe

Measurements can be performed with or without a probe. Measurements with probe require that the probe and reference

earth are of like potential. This means that the probe must be positioned outside of the potential gradient area of the earth electrode (R

The distance between the earth electrode and the probe should be at least 20 m.

The probe is connected with a 4 mm contact protected plug. In most cases this measurement is performed without probe.

Testing for the absence of voltage at the probe can be performed with the U

18 GMC-I Messtechnik GmbH

) in the RCD safety circuit.

The probe is part of the measuring circuit and may carry a current of up to 3.5 mA in accordance with VDE 0413.

function (see also section 6.1 on page 16).

PROBE

1) Measuring Contact Current Without Tripping the RCD

Attention!

Note

Attention!

Measuring Method

The instrument uses a measuring current of only 1/3 nominal residual current for the determination of contact voltage U which occurs at nominal residual current. This prevents tripping of

IΔN

the RCCB. This measuring method is especially advantageous, because

contact voltage can be measured quickly and easily at any electrical outlet without tripping the RCCB.

The usual, complex measuring method involving testing for the proper functioning of the RCD at a given point, and subsequent substantiation that all other systems components requiring protection are reliably connected at low resistance values to the selected measuring point via the PE conductor, is made unnecessary.

N-PE Reversal Test

Additional testing is conducted in order to determine whether or not N and PE are reversed. The pop-up window shown at the right appears in the event of reversal.

2) Tripping Test after the Measurement of Contact Voltage

➭ Press the

The tripping test need only be performed at one measuring point for each RCCB.

If the RCCB is tripped at nominal residual current,

the MAINS/NETZ LED blinks red (line voltage disconnected) and time to trip ta and earthing resistance RE appear at the display panel.

If the RCCB is not tripped at nominal residual current,

the RCD/FI LED lights up red.

key.

Execute a data backup before starting measurement and switch off all consumers in order to prevent the loss of data in data processing systems.

Start Measurement

Amongst other values, contact voltage U ing resistance R

appear at the display panel.

The measured earthing resistance value RE is acquired with very little current. More accurate results can be obtained with the selector switch in the R The DC + function can be selected here for systems with RCCBs.

and calculated earth-

IΔN

position.

Unintentional Tripping of the RCD due to Bias Current within the System

If bias currents should occur, they can be measured with the help of a current clamp transformer as described in section 13.1 on page 50. The RCCB may be tripped during the contact voltage test if extremely large bias currents are present within the system, or if a test current was selected which is too great for the RCCB.

After contact voltage has been measured, testing can be performed to determine whether or not the RCCB is tripped within the selected time limits at nominal residual current.

Unintentional Tripping of the RCD due to Leakage Current in the Measuring Circuit

Measurement of contact voltage with 30% nominal residual current does not normally trip an RCCB. However, the trip limit may be exceeded as a result of leakage current in the measuring circuit, e.g. due to interconnected power consumers with EMC circuit, e.g. frequency converters and PCs.

Contact Voltage Too High

If contact voltage U nal residual current I the U

LED lights up red.

L/RL

If contact voltage U sequence, safety shut-down occurs.

Safety Shut-down: At up to 70 V, a safety shut-down is tripped within 3 seconds in accordance with IEC 61010.

Contact voltages of up to 70 V are displayed. If contact voltage is greater than 70 V, U

, which has been measured with 1/3 nomi-

IΔN

and extrapolated to IΔN, is > 50 V (> 25 V),

ΔN

exceeds 50 V (25 V) during the measuring

IΔN

> 70 V is displayed.

IΔN

Limit Values for Allowable, Continuous Contact Voltage

The limit for allowable, continuous contact voltage is UL=50V for alternating voltages (international agreement). Lower values have been established for special applications (e.g. medical applications: U

=25V).

If contact voltage is too high, or if the RCCB is not tripped, the system must be repaired (e.g. earthing resistance is too high, defective RCCB etc.)!

3-Phase Connections

For proper RCD testing at three-phase connections, the tripping test must be conducted for one of the three phase conductors (L1, L2 and L3).

Inductive Power Consumers

Voltage peaks may occur within the measuring circuit if inductive consumers are shut down during an RCCB trip test. If this is the case, the test instrument may display the following message: No measured value (– – – ). If this message appears, switch all power consumers off before performing the trip test. In extreme cases, one of the fuses in the test instrument may blow, and/or the test instrument may be damaged.

GMC-I Messtechnik GmbH 19

7.2 Special Testing for Systems and RCCBs

Note

Attention!

Nominal residual current:

Type 1: RCD, SRCD, PRCD etc.

Nominal current: 6 ... 125 A

Type 2: AC , A/F , B/B+ *

EV/MI

* Type B/B+/EV/MI = AC/DC sensitive

10 ... 500 mA

sine

Negative/positive half-wave

Waveform:

Connection:

without/with probe

System type:

TN/TT, IT

Negative/positive direct current

Contact voltage:

Tripping limit values:

7.2.1 Testing Systems and RCCBs with Rising Residual Current

(AC) for Type AC, A/F, B/B+ and EV/MI RCDs

Measuring Method

The instrument generates a continuously rising residual current of (0.3 to 1.3) • I The instrument stores the contact voltage and tripping current values which were measured at the moment tripping of the RCCB occurred, and displays them.

One of contact voltage limit values, U can be selected for measurement with rising residual current.

within the system for the testing of RCDs.

ΔN

=25V or UL=50V/65V,

Select Measuring Function

Connection

Start Measurement

Set Parameters for I

Measuring Sequence

After the measuring sequence has been started, the test current generated by the instrument is continuously increased starting at

0.3 times nominal residual current, until the RCCB is tripped. This can be observed by viewing gradual filling of the triangle at IΔ.

If contact voltage reaches the selected limit value (U or 25 V) before the RCCB is tripped, safety shut-down occurs. The U

If the RCCB is not tripped before the rising current reaches nominal residual current I

LED lights up red.

L/RL

Safety Shut-down: At up to 70 V, a safety shut-down is tripped within 3 seconds in accordance with IEC 61010.

, the RCD/FI LED lights up red.

ΔN

If bias current is present within the system during measurement, it is superimposed onto the residual current which is generated by the instrument and influences measured values for contact voltage and tripping current. See also section 7.1.

=65V, 50V

Evaluation

According to DIN VDE 0100, Part 600, rising residual current must, however, be used for measurements in the evaluation of RCDs, and contact voltage at nominal residual current I be calculated from the measured values. The faster, more simple measuring method should thus be taken advantage of (see sectionl 7.1).

ΔN

must

7.2.2 Testing Systems and RCCBs with Rising Residual Current (AC) for Type B/B+ and EV/MI RCDs (nur MTECH+, MXTRA & SECULIFE IP)

In accordance with VDE 0413, part 6, it must be substantiated that, with smooth direct current, residual operating current is no more than twice the value of rated residual current IΔN. A continu-

20 GMC-I Messtechnik GmbH

ously rising direct current, beginning with 0.2 times rated residual current I ing current may not exceed twice the value of I of 5 seconds.

Testing with smoothed direct current must be possible in both test current directions.

, must be applied to this end. If current rise is linear, ris-

ΔN

within a period

ΔN

7.2.3 Testing RCCBS with 5 • IΔN

Note

ΔN

Negative direct current

Positive direct current

Waveform:

180°: Start with neg. half-wave

0°: Start with pos. half-wave

5 times tripping current

X times tripping current:

ΔN

Neg. half-wave

Pos. half-wave

Negative direct current

Positive direct current

Waveform:

X times tripping current:

50% IΔN*

* Non-tripping test

with 50% I

ΔN

The measurement of time to trip is performed here with 5 times nominal residual current.

Measurements performed with 5 times nominal fault current are required for testing type and G RCCBs in the manufacturing process. They are used for personal safety as well.

Measurement can be started with the positive half-wave at “0°” or with the negative half-wave at “180°”.

Both measurements must nevertheless be performed. The longer of the two tripping times is decisive regarding the condition of the tested RCCB. Both values must be less than 40 ms.

Select Measuring Function

Set the Parameter – Start with Positive or Negative Half-Wave

7.2.4 Testing of RCCBs which are Suited for Pulsating DC Residual Current

In this case, RCCBs can be tested with either positive or negative half-waves. The standard calls for tripping at 1.4 times nominal current.

Select Measuring Function

Set the Parameter – Positive or Negative Half-Wave

Set the Parameter – 5 Times Nominal Current

The following restrictions apply to the selection of tripping current multiples relative to nominal current: 500 mA: 1 x, 2 x IΔN

Start Measurement

Set the Parameter – Test With and Without “Non-Tripping Test”

Non-Tripping Test

If, during the non-tripping test which lasts for 1 second, the RCD trips too early at 50% I before the actual tripping test starts, the pop-up window shown at the right appears.

The following restriction applies to the selection of tripping current multiples relative to nominal current: Double and five-fold nominal current is not possible in this case.

According to DIN EN 50178 (VDE 160), only type B RCCBs (AC-DC sensitive) can be used for equipment with > 4 kVA, which is capable of generating smooth DC residual current (e.g. frequency converters). Tests with pulsating DC fault current only are not suitable for these RCCBs. Testing must also be conducted with smooth DC residual current in this case.

ΔN

, i.e.

GMC-I Messtechnik GmbH 21

Measurement is performed with positive and negative half-waves for testing RCCBs during manufacturing. If a circuit is charged with pulsating direct current, the function of the RCCB can be executed with this test in order to assure that the RCCB is not saturated by the pulsating direct current so that it no longer trips.

7.3 Testing for Special RCDs

Note

ΔN

Type 1:

7.3.1 System, Type RCD-S Selective RCCBs

Selective RCDs are used in systems which include two series connected RCCBs which are not tripped simultaneously in the event of a fault. These selective RCDs demonstrate delayed response characteristics and are identified with the symbol.

Measuring Method

The same measuring method is used as for standard RCCBs (see sections 7.1 on page 18 and 7.2.1 on page 20).

If selective RCDs are used, earthing resistance may not exceed half of the value for standard RCCBs.

For this reason, the instrument displays twice the measured value for contact voltage.

Select Measuring Function

Set Parameter – Selective

Tripping Test

➭ Press the IΔN key. The RCCB is tripped. Blinking bars appear

at the display panel, after which time to trip t sistance R

The tripping test need only be performed at one measuring point for each RCCB.

are displayed.

Selective RCDs demonstrate delayed response characteristics. Tripping performance is briefly influenced (up to 30 s) due to pre-loading during measurement of contact voltage. In order to eliminate pre-charging caused by the measurement of contact voltage, a waiting period must be observed prior to the tripping test. After the measuring sequence has been started (tripping test), blinking bars are displayed for approximately 30 seconds. Tripping times of up to 1000 ms are allowable. The tripping test is executed immediately after once again pressing the I key.

and earthing re-

ΔN

Start Measurement

7.3.2 PRCDs with Non-Linear Type PRCD-K Elements

The PRCD-K is a portable RCD with electronic residual current evaluation laid out as an in-line device which switches all poles (L, N and PE). An undervoltage trigger and protective conductor monitoring are additionally integrated into the PRCD-K.

The PRCD-K is equipped with an undervoltage trigger, for which reason it has to be operated with line voltage, and measurements may only be performed in the on state (PRCD-K switches all poles).

Terminology (from DIN VDE 0661)

Portable protective devices are circuit breakers which can be connected between power consuming devices and permanently installed electrical outlets by means of standardized plug-andsocket devices. A reusable, portable protective device is a protective device which is designed such that it can be connected to movable cables.

Please be aware that a non-linear element is usually integrated into PRCDs, which leads to immediate exceeding of the greatest allowable contact voltage during U than 50 V).

PRCDs which do not include a non-linear element in the protective conductor must be tested in accordance with section 7.3.3 on page 23.

measurements (UIΔ greater

IΔ

Objective (from DIN VDE 0661)

Portable residual current devices (PRCDs) serve to protect persons and property. They allow for the attainment of increased levels of protection as provided by protective measures utilized in electrical systems for the prevention of electrical shock as defined in DIN VDE 0100, part 410. They are to be designed such that they can be installed by means of a plug attached directly to the protective device, or by means of a plug with a short cable.

22 GMC-I Messtechnik GmbH

Measuring Method

ΔN

Type 1:

ΔN

Type 1:

The following can be measured, depending upon the measuring method:

•Time to trip t (The PRCD-K must be tripped at 50% nominal current.)

• Tripping current IΔ: testing with rising residual current I

: tripping test with nominal residual current I

ΔN

Select Measuring Function

7.3.3 SRCD, PRCD-S (SCHUKOMAT, SIDOS or comparable)

RCCBs from the SCHUKOMAT SIDOS series, as well as others which are of identical electrical design, must be tested after selecting the corresponding parameter.

Monitoring of the PE conductor is performed for RCDs of this type. The PE conductor is monitored by the summation current transformer. If residual current flows from L to PE, tripping current is cut in half, i.e. the RCCB must be tripped at 50% nominal residual current I

Whether or not PRCDs and selective RCDs are of like design can be tested by measuring contact voltage U

of greater than 70 V is measured at the PRCD of an other-

IΔN

wise error-free system, the PRCD more than likely contains a nonlinear element.

ΔN

. If a contact voltage

IΔN

Connection

Set the Parameter – PRCD with Non-Linear Elements

PRCD-S

The PRCD-S (portable residual current device – safety) is a special, portable, protective device with protective conductor detection or protective conductor monitoring. The device serves to protect persons from electrical accidents in the low-voltage range (130 to 1000 V). The PRCD-S must be suitable for commercial use, and is installed like an extension cable between an electrical consumer – as a rule an electrical tool – and the electrical outlet.

Select Measuring Function

Set Parameter – SRCD / PRCD

Start Measurement

GMC-I Messtechnik GmbH 23

7.3.4 Type G or R RCCB

Note

ΔN

Type 1:

180°: Start with neg. half-wave

0°: Start with pos. half-wave

Waveform:

Negative direct current

Positive direct current

X times tripping current:

5 times tripping current

In addition to standard RCCBs and selective RCDs, the special characteristics of the type G RCCB can also be tested with the test instrument.

The type G RCCB is an Austrian specialty and complies with the ÖVE/ÖNORM E 8601 device standard. Erroneous tripping is minimized thanks to its greater current carrying capacity and shortterm delay.

Select Measuring Function

Set the Parameter – 5 Times Nominal Current

Set Parameter – Type G/R (VSK)

Contact voltage and time to trip can be measured in the G/RRCD switch position.

It must be observed that time to trip for type G RCCBs may be as long as 1000 ms when measurement is made at nominal residual current. Set the limit value correspondingly.

➭ Then select 5 x I

for the G/R setting) and repeat the tripping test beginning with the positive half-wave at 0° and the negative half-wave at 180°. The longer of the two tripping times is decisive regarding the condition of the tested RCCB.

in the menu (this is selected automatically

ΔN

The following restrictions apply to the selection of tripping current multiples relative to nominal current: 500 mA: 1 x, 2 x IΔN

Start Measurement

In both cases, tripping time must be between 10 ms (minimum delay time for type G RCCBs!) and 40 ms.

Type G RCCBs with other nominal residual current values must be tested with the corresponding parameter setting under menu item I adjusted.

. In this case as well, the limit value must be appropriately

ΔN

Set the Parameter – Start with Positive or Negative Half-Wave

24 GMC-I Messtechnik GmbH

The RCD parameter setting for selective RCCBs is not suitable for type G RCCBs.

7.4 Testing Residual Current Circuit Breakers in TN-S Systems

UIΔNR

IΔN• 1Ω 30mA⋅ 30m V 0

· 03V,== ==

System

type:

Connection

RCCBs can only be used in TN-S systems. An RCCB would not work in a TN-C system because PE is directly connected to the neutral conductor in the outlet (it does not bypass the RCCB). This means that residual current would be returned via the RCCB and would not generate any differential current, which is required in order to trip the RCCB.

As a rule, the display for contact voltage is also 0.1 V, because the nominal residual current of 30 mA together with minimal loop resistance results in a very small voltage value:

7.5 Testing of RCD Protection in IT Systems with High Cable Capacitance (e.g. in Norway)

The desired system type (TN/TT oder IT) can be selected for RCD test type U

A probe is absolutely essential for measurement in IT systems, because contact voltage U cannot otherwise be measured.

After selecting the IT system setting, connection with probe is selected automatically.

(IΔN, ta), and for earthing measurement (RE).

IΔN

which occurs in these systems

IΔN

Set the Parameter – Select System Type

Start Measurement

GMC-I Messtechnik GmbH 25

8 Testing of Breaking Requirements

Note

L-PE

Start

t1 t3

Measurement

Operation

RCD Disabled!

/mA

Suppression of RCCB tripping for RCCBs which are sensitive to pulsating current

Overcurrent Protective Devices, Measurement of Loop Impedance and Determination of Short-Circuit Current (functions Z

Testing of overcurrent protective devices includes visual inspection and measurement. Use the PROFITEST MASTER or SECULIFE IP to perform measurements.

Measuring Method

Loop impedance Z ascertained in order to determine if the breaking requirements for protective devices have been fulfilled.

Loop impedance is the resistance within the current loop (utility station – phase conductor – protective conductor) when a shortcircuit to an exposed conductive part occurs (conductive connection between phase conductor and protective conductor). Shortcircuit current magnitude is determined by the loop impedance value. Short-circuit current I value set forth by DIN VDE 0100, so that reliable breaking of the protective device (fuse, automatic circuit breaker) is assured.

Thus the measured loop impedance value must be less than the maximum allowable value.

Tables containing allowable display values for loop impedance and minimum short-circuit current display values for ampere ratings for various fuses and circuit breakers can be found in the help texts and in section 21 beginning of page 88. Maximum device error in accordance with VDE 0413 has been taken into consideration in these tables. See also section 8.2.

In order to measure loop impedance Z test current of 3.7 to 7 A (60 to 550 V) depending on line voltage and line frequency. At 16 Hz, the test has a duration of no more than 1200 ms.

If dangerous contact voltage occurs during measurement (> 50 V), safety shut-down occurs.

The test instrument calculates short-circuit current IK based on measured loop impedance current calculation is made with reference to nominal line voltage for line voltages which lie within the nominal ranges for 120 V, 230 V and 400 V systems. If line voltage does not lie within these nominal ranges, the instrument calculates short-circuit current IK based on prevailing line voltage and measured loop impedance Z

L-PE

Select Measuring Function

Connection: Schuko / 3-Pole Adapter

and IK)

L-P E

is measured and short-circuit current IK is

L-P E

may not fall below a predetermined

, the instrument uses a

L-P E

and line voltage. Short-circuit

L-P E

Connection: 2-Pole Adapter

Loop impedance should be measured for each electrical circuit at the farthest point, in order to ascertain maximum loop impedance for the system.

Observe national regulations, e.g. the necessity of conducting measurements without regard for RCCBs in Austria.

3-Phase Connections

Measurement of loop impedance to earth must be performed at all three phase conductors (L1, L2, and L3) for the testing of overcurrent protective devices at three phase outlets.

8.1 Measurements with Suppression of RCD Tripping

Measuring Method with Suppression of RCD Tripping

The test instruments PROFITEST MTECH+, PROFITEST MXTRA and SECULIFE IP make it possible to measure loop impedance in TN

systems with type A, F 300, 500 mA nominal residual current).

The test instrument generates a direct current to this end, which saturates the RCCB’s magnetic circuit. The test instrument then superimposes a measuring current which only demonstrates halfwaves of like polarity. The RCCB is no longer capable of detecting this measuring current, and is consequently not tripped during measurement.

A four conductor measuring cable is used between the instrument and the test plug. Cable and measuring adapter resistance is automatically compensated for during measurement and does not effect measurement results.

and type AC RCCBs (10, 30, 100,

A loop impedance measurement by using the method of suppression of RCD tripping can only be performed with

26 GMC-I Messtechnik GmbH

type A and F RCDs.

8.1.1 Measurement with Positive Half-Waves

L-PE

Tripping characteristics:

Diameter*: 1.5 to 70 sq. mm

Cable types*: NY...- H07...

Number of wires*: 2 to 10-strand

Nominal current:

2 ... 160 A, 9999 A

A, B/L, C/G, D, E, H, K, GL/GG & Factor

Sine

15 mA sinusoidal

Waveform:

DC-L offset and positive half-wave

Contact voltage:

DC-H offset and positive half-wave

2-pole

Measurement with country-specific

plug insert (e.g. Schuko)

Note

Selecting test probe and Lx-PE reference or AUTO is only relevant for report generation.

Semiautomatic measurement

8.2 Evaluation of Measured Values

The maximum allowable loop impedance Z which may be displayed after allowance has been made for maximum operating measurement error (under normal measuring conditions) can be determined with the help of Table 1 on page 88. Intermediate values can be interpolated.

The maximum allowable nominal current for the protective device (fuse or circuit breaker) for a line voltage of 230 V after allowance has been made for maximum measuring error can be determined with the help of Table 6 on page 89 based upon measured short-circuit current (corresponds to DIN VDE 0100 Part 600).

L-P E

Special Case: Suppressing Display of the Limit Value

The limit value cannot be ascertained. The inspector is prompted to evaluate the measured values himself, and to acknowledge or reject them with the help of the softkeys.

Measurement passed: key

✔

Measurement failed: X key

The measured value can only be saved after it has been evalu-

Limit value:

< limit value

UL ⏐ R

L-N

Nominal current:

Diameter: 1.5 to 70 sq. mm

Cable types: NY..., H03... - H07...

Number of wires: 2 ... 10-strand

2 ... 160 A, 9999 A

Tripping characteristics:

A, B/L, C/G, D, E, H, K, GL/GG & Factor

ated.

9 Measuring Line Impedance (Z

function)

L-N

Measuring Method (internal line resistance measurement)

Supply impedance Z method used for loop impedance Z

26). However, the current loop is completed via neutral conductor N rather than protective conductor PE as is the case with loop impedance measurement.

is measured by means of the same

L-N

(see section 8 on page

L-P E

Select Measuring Function

Connection: Schuko

8.3 Settings for Short-circuit current Calculation – Parameter I

Short-circuit current IK is used to test shutdown by means of an overcurrent protective device. In order for an overcurrent protective device to be tripped on time, short-circuit current IK must be greater than tripping current Ia (see table 6 in section 21.1). The variants which can be selected with the “Limits” key have the following meanings:

: Ia The measured value displayed for IK is used without

: Ia+Δ% The measured value displayed for Z

any correction to calculate Z

by an amount equal to the test instrument’s measuring

L-PE

L-P E

is corrected

uncertainty in order to calculate IK.

: 2/3 Z In order to calculate IK, the measured value displayed

: 3/4 Z Z

for Z all possible deviations (these are defined in detail by VDE 0100, part 600, as Z

is corrected by an amount corresponding to

L-P E

≤ 2/3 x U0/Ia).

≤ 3/4 x U0/Ia

s(m)

Short-circuit current calculated by the instrument (at nominal voltage)

Z Fault loop impedance Ia Tripping current

(see data sheets for circuit breakers / fuses)

Δ%Test instrument intrinsic error

Connection: 2-Pole Adapter

Set Parameters

Special Case Ik > I

28 GMC-I Messtechnik GmbH

see page 29.

kmax

Press the softkey shown at the left in order to switch back and forth between the country-specific plug insert, e.g. SCHUKO, and 2-pole adapter. The selected connection type is displayed inversely (white on black).

Start Measurement

Semiautomatic measurement

See also section 5.8 regarding the AUTO parameter. L-PE relationships are not possible here. The neutral L-N relationship is not offered during automatic sequencing to the right of the auto entry!

Polarity selection

Limit value:

< limit value

UL ⏐ R

Settings for Short-circuit current Calculation – Parameter I

: Ia The measured value displayed for IK is used without

: Ia+Δ% The measured value displayed for Z

any correction to calculate Z

by an amount equal to the test instrument’s measuring

L-PE

L-P E

is corrected

uncertainty in order to calculate IK.

: 2/3 Z In order to calculate IK, the measured value displayed

: 3/4 Z Z

for Z all possible deviations (these are defined in detail by VDE 0100, part 600, as Z

is corrected by an amount corresponding to

L-P E

≤ 2/3 x U0/Ia).

≤ 3/4 x U0/Ia

s(m)

Display of U

(UN / fN)

L-N

If the measured voltage value lies within a range of ±10% of the respective nominal line voltage of 120 V, 230 V or 400 V, the respectively corresponding nominal line voltage is displayed. In the case of measured values outside of the ±10% tolerance, the actual measured value is displayed.

Displaying the Fuse Table

After measurement has been performed, allowable fuse types can be displayed by pressing the HELP key.

The table shows maximum allowable nominal current dependent upon fuse type and breaking requirements.

Short-circuit current calculated by the instrument (at nominal

voltage)

Z Fault loop impedance Ia Tripping current (see data sheet for circuit breakers / fuses)

Δ%Test instrument inherent error

Special case Ik > I

If the value for the shortcircuit current is beyond the measured values defined in PROFITEST MASTER, it is indicated by > IK-max“.

In this case, it will be necessary to evaluate the measuring result manually.

GMC-I Messtechnik GmbH 29

kmax

Key: Ia = breaking current, I I

= nominal current, tA = tripping time

= short-circuit current,

+ 67 hidden pages

Gossen Metrawatt M520P, PROFITEST MBASE, PROFITEST MTECH, PROFITEST MPRO, PROFITEST MXTRA User guide

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Scope of delivery

2 Applications

2.1 Using Cable Sets and Test Probes

3 Safety Features and Precautions

4 Initial Start-Up

4.1 Preparation for use

4.3 Switching the Instrument On/Off

4.4 Battery Test

4.5 Charging the Battery Pack in the Tester

4.2 Installing or Replacing the Battery Pack

4.6 Device Settings

5 General Notes

5.1 Connecting the Instrument

5.2 Automatic Settings, Monitoring and Shut-Off

5.3 Measurement Value Display and Memory

5.4 Testing Earthing Contact Sockets for Correct Connection

5.5 Help Function

5.6 Setting Parameters or Limit Values using RCD Measurement as an Example

5.7 Freely Selectable Parameter Settings or Limit Values

5.8 2-Pole Measurement with Fast or Semiautomatic Polarity Reversal

6 Measuring Voltage and Frequency

6.1 Single-Phase Measurement

6.1.2 Voltage between L – PE, N – PE and L – L with 2-Pole Adapter Connection

7 Testing RCDs

7.2 Special Testing for Systems and RCCBs

7.2.2 Testing Systems and RCCBs with Rising Residual Current (AC) for Type B/B+ and EV/MI RCDs (nur MTECH+, MXTRA & SECULIFE IP)

7.2.4 Testing of RCCBs which are Suited for Pulsating DC Residual Current

7.3 Testing for Special RCDs

7.3.1 System, Type RCD-S Selective RCCBs

7.3.2 PRCDs with Non-Linear Type PRCD-K Elements

7.3.3 SRCD, PRCD-S (SCHUKOMAT, SIDOS or comparable)

7.3.4 Type G or R RCCB

7.4 Testing Residual Current Circuit Breakers in TN-S Systems

7.5 Testing of RCD Protection in IT Systems with High Cable Capacitance (e.g. in Norway)

8.1 Measurements with Suppression of RCD Tripping

8.2 Evaluation of Measured Values