METREL MA 2067 Manuel utilisateur

Demonstration board

MA 2067

Instruction manual

Version 1.4.5, Code no. 20 750 789

Distributor:

Manufacturer:

Metrel d.d.

Ljubljanska cesta 77

SI-1354 Horjul

Slovenia

https://www.metrel.si

[email protected]

Mark on your equipment certifies that it meets requirements of all subjected EU

regulations.

Hereby, Metrel d.d. declares that the MA 2067 is in compliance with subjected

EU directive. The full text of the EU declaration of conformity is available at the

following internet address https://www.metrel.si/DoC.

The trade names Metrel®, Smartec®, Eurotest®, Auto Sequence®are trademarks registered in Europe and other

countries.

No part of this publication may be reproduced or utilized in any form or by any means without

permission in writing from METREL.

Demonstration board MA 2067 Contents

1. Introduction...........................................................................................................4

2. Description of the demonstration board.............................................................5

2.1 Front panel..........................................................................................................5

2.2 Command part (back side of the demonstration board)......................................7

2.3 Demonstration board support..............................................................................8

3. Technical data.......................................................................................................8

4. Connection to mains voltage...............................................................................9

5. List of possible measurements on the board...................................................11

6. Simulation of errors............................................................................................13

7. List of instruments to be used in combination with the board.......................15

8. Maintenance........................................................................................................16

8.1 Cleaning............................................................................................................16

8.2 Service..............................................................................................................16

9. Standard set........................................................................................................17

10.Options................................................................................................................17

Demonstration board MA 2067 Introduction

1. Introduction

Demonstration board MA 2067 is a school facility. It simulates real low voltage electro-

installation. Major elements like fuses, RCD protection switches, outlets etc. are

incorporated.

The board is designed to be used in middle level electrical schools in order to improve

practical and theoretical knowledge of listeners on electro-installation, on possible errors

of installation and on how to carry out different measurements of electro-installation. It is

aimed as well to be used at sale-demonstration rooms for presentation of electro-

installation testers and their application.

Demonstration board enables demonstration on three earthing systems: TT, NT, IT.

It performs the following major activities:

Education of students / pupils on low voltage electro-installation.

Practical training and courses about measurements on low voltage electro-

installation and simulation of errors both, on electro-installation and on connected

appliances.

Demonstration on how to use different measurement instruments.

The board's plug is prepared to be connected to three-phase mains installation or to

one-phase installation with help of one-phase adapter. The board can be used in

horizontal position for small groups of listeners or in vertical position for demonstration

in a class, presentation at seminar, exhibition etc.

Demonstration board MA2067 Description of the demonstration board

2. Description of the demonstration board

2.1 Front panel

Fig.1. Front panel

Demonstration board MA2067 Description of the demonstration board

Meaning of abbreviations on front panel

J1 to J5 ...........................Jumper 1 to Jumper 5

LR 1 ................................Lightning rod 1

LR 2 ................................Lightning rod 2

BG ..................................Basic Grounding

AUX rod 1 .......................AUXiliary rod 1

AUX rod 2 .......................AUXiliary rod 2

C1 ...................................Current probe 1

C2 ...................................Current probe 2

P1 ...................................Potential probe 1

P2 ...................................Potential probe 2

MPE ...............................Main Potential Equilizing

EC1 to EC3 ....................Earth Collector 1 to Earth Collector 3

F1 ...................................Fuse –Lamp 1

F2 ...................................Fuse –3-phase outlet

F3 ...................................Fuse –3-phase motor

F4 ...................................Fuse –Outlet 1

F5 ...................................Fuse –Lamp 2

F6 ...................................Fuse –Washing machine

F7 ...................................Fuse –Outlet 2

F8 ...................................Fuse –Outlet 3

F9 ...................................Fuse –Computer system

B1 to B9 ..........................Branch 1 to Branch 9

Demonstration board MA2067 Description of the demonstration board

2.2 Command part (back side of the demonstration board)

Fig.2. Command part (protection screen lifted up)

Legend:

1…Key lock for protection screen locking

2…Protection screen to cover command part

3…Automatic fuse which:

protects demonstration board and a user of the board in case of a fault on line L1

(simulated errors in command part excluded)

serves for general on/off of the board

serves for reset (reswitching on) of the board in case protection electronic inside

the board trips the board due to a certain fault (simulated errors in command part

excluded)

4…Switches for simulation of different errors

Demonstration board MA 2067 Technical data

2.3 Demonstration board support

Fig.3. Support

Use the support in case demonstration board is to be used in vertical position for

demonstration to a wider audience. It is possible to fix the support to a table using two

screws (which are not a part of the standard set) in order to improve stability of

demonstration board (when pulling out and pushing in test plugs).

3. Technical data

Mains connection .................three-phase (4m) type 3P+N+PE or one-phase type, using

one-phase adapter (2m)

Width ...................................680 mm

Height ..................................450 mm

Mass ....................................12,5 kg approx.

Fixing to a table ...................by means of two screws (distance between fixing holes is

700 mm)

Respected standards ...........EN 61010-1 (safety)

EN 50081-1 (EMC)

EN 50082-1 (EMC)

VDE 0100 (construction of electro-installation)

Test sockets .........................one-phase with PE terminal

three-phase (3L+N+PE)

Protection classification........(PE terminal connected to metal housing)

Demonstration board MA 2067 Connection to mains voltage

4. Connection to mains voltage

Before connecting the Demonstration board to mains installation, the following must be

checked by the operator:

That PE terminal is present at mains outlet which is to be used for connection of the

board and that there are no damages noticed at the outlet (mechanical damages,

broken contacts etc.)

That there are no damages present at board's plug and at board itself (damaged

outlets, mechanical damages of other elements etc.)

That there is an RCD protection switch ∆=30 mA involved in mains installation to be

used for supplying of the board (recommendation)

Attention!

The board is allowed to be used only in presence of properly educated person-

teacher, when using it in schools.

Use only attached, original jumpers (defined distance between two ends) for

carrying out required connections on front panel of the board.

Use the test outlets on front panel for test purpose only and not for supplying

different loads (radio, cooker, lamp etc.) because the components inside the

board (wiring, switches, contacts, resistors etc.) are dimensioned for test

purpose only.

Do not short accessible contacts at one-phase or three-phase outlets.

Connection to 3-phase outlet

Fig.4. Connection of the Demonstration board to 3-phase outlet

Demonstration board MA 2067 Connection to mains voltage

Connection to one-phase outlet

Phase mark

Fig.5. Connection of the Demonstration board to one-phase outlet

Not intended for insulation tests

Note:

The equipment contains a special input protection circuit. Please ensure minimum of 10

s between unplugging the demo board and plugging it in again. This will enable that the

protection circuit is working correctly.

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