Metrel MI 2123 User guide

Insulation / Continuity Tester

MI 2123

User Manual

Version 1.1, Code No. 20 750 424

Distributor:

COSINUS Computermesstechnik GmbH

Lise-Meitner-Strasse 6

D-85521 Ottobrunn
GERMANY

Tel: [phone]

Fax: [phone]
http://www.cosinus.de

Manufacturer:

METREL d.d.
Ljubljanska cesta 77
1354 Horjul
Slovenia

web site:

http://www.metrel.si

e-mail: [e-mail]

Mark on your equipment certifies that this equipment meets the requirements of the EU
(European Union) concerning safety and electromagnetic compatibility regulations

© 2000..2007 METREL

No part of this publication may be reproduced or utilized in any form or by any means
without permission in writing from METREL.

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MI 2123 Insulation / Continuity Table of contents

1. General introduction--------------------------------------------------------------------------------4

1.1. Features---------------------------------------------------------------------------------------------4

1.2. Applied Standards--------------------------------------------------------------------------------4

2. Instrument description-----------------------------------------------------------------------------5

2.1. Instrument Casing--------------------------------------------------------------------------------5

2.2. Operator’s Panel----------------------------------------------------------------------------------5

2.3. Connectors-----------------------------------------------------------------------------------------6

2.4. Bottom Section------------------------------------------------------------------------------------7

2.5. Accessories ----------------------------------------------------------------------------------------7

3. Warnings and Instrument Messages ----------------------------------------------------------8

3.1. Warnings--------------------------------------------------------------------------------------------8

3.2. Instrument Messages----------------------------------------------------------------------------8

4. Measurements --------------------------------------------------------------------------------------10

4.1. Insulation Resistance--------------------------------------------------------------------------10

4.2. R ±200mA --------------------------------------------------------------------------------------12

4.3. Continuity----------------------------------------------------------------------------------------- 14

5. Operation with Results--------------------------------------------------------------------------- 16

5.1. Storing of Measurement Results ------------------------------------------------------------ 16

5.2. Storage Handling -------------------------------------------------------------------------------17

5.3. Data Transfer------------------------------------------------------------------------------------ 20

6. Maintenance ----------------------------------------------------------------------------------------- 21

6.1. Inspection-----------------------------------------------------------------------------------------21

6.2. Battery Replacement --------------------------------------------------------------------------21

6.3. Fuse replacement ------------------------------------------------------------------------------22

6.4. Cleaning-------------------------------------------------------------------------------------------22

6.5. Service --------------------------------------------------------------------------------------------22

7. Specifications--------------------------------------------------------------------------------------- 23

7.1. Measurements-----------------------------------------------------------------------------------23

7.2. General specifications-------------------------------------------------------------------------24

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MI 2123 Insulation/Continuity Tester General introduction

1. General introduction

1.1. Features

The SMARTEC Insulation / Continuity Tester is a portable hand-held battery powered
test instrument intended for testing of safety measures on mains installations. It
operates on a SIMPLE and CLEAR basis.
The equipment is designed and produced with the extensive knowledge and experience
acquired through many years of dealing with electrical installation test equipment.

General functions of the SMARTEC Insulation / Continuity Tester:

- Insulation Resistance measurement,

- Continuity measurement using test current of 200 mA in accordance with EN 61557

standard,

- Continuity measurement (continuous measurement) using test current of up to
7 mA,

- AC / DC Voltage and Frequency measurement.

Features:

- Wide range of Insulation Resistance test voltages (50 up to 1000 V DC),

- Automatic discharge of tested item after measurement completion,

- Automatic test voltage polarity exchange in Continuity ± 200 mA function,

- Continuity 7 mA function for inductive test items,

- Memories,

- PC connection.

A custom designed LCD offers easy to read results. Operation is simple and clear, the
operator does not need any special training (except reading and understanding this
Users Manual) to operate the instrument.
In order for the operator to be familiar with measurements in general, it is advisable to
read the handbook Measurements on electric installations in theory and practice.
The instrument allows storage of test results. Professional PC SW enables simple
transfer of test results and other parameters in both directions between the tester and
the PC.

1.2. Applied Standards

Instrument operation: IEC / EN 61557-1, IEC / EN 61557-2, IEC / EN 61557-4
DIN VDE 0413-1, DIN VDE 0413-4, DIN VDE 100
BS 7671 – 16th edition
Electromagnetic compatibility (EMC): IEC 61326, Class B
Safety: EN/IEC 61010-1 (instrument),
EN/IEC 61010-2-31 (accessories)

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MI 2123 Insulation/Continuity Tester Instrument description

2. Instrument description

2.1. Instrument Casing

The instrument is housed in a plastic casing, which maintains the protection class
defined in general specifications. The casing consists of a main section, which includes
the operator's panel and connectors and of a flexible cover.

Note! The cover is permanently fixed to the base section and cannot be detached.

2.2. Operator’s Panel

The operator’s panel consists of a custom LCD, a rotary switch, and a keyboard, see
the figure below.

1

2

3

1

2

3

4

6

5

8

7

4

7865

Fig. 1. Front panel

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MI 2123 Insulation/Continuity Tester Instrument description

Legend:

1..........Custom designed LCD.

2..........Up key to increase storage group.

3..........START key to start any measurement.

4..........DISP key to display subresults of selected function.

5..........MEM key to store and recall results.

6..........CLR key to erase memorized results.

7..........Down key to decrease storage group.

8..........Rotary switch to select measurement function.

2.3. Connectors

Use originl test accessories only!
Max. allowed voltage between mains test terminals
and ground is 300 V!
Max. allowed voltage between mains test terminals
is 600 V!
Max. output voltage between test terminals is 1100 V!

1

123

Fig. 2. Connectors

Legend:

1..........Test connector.

2..........RS 232 connector to connect the instrument to PC.

3..........Battery charger connector.

Test connector is intended for connection of the test cable and is accessible only when
the instrument cover is lifted up. RS 232 and battery charger connectors are accessible
only when the cover of the instrument is closed. For safety reasons both connector
fields cannot be accessible at the same time, the cover of the instrument selects the
accessible one.

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MI 2123 Insulation/Continuity Tester Instrument description

2.4. Bottom Section

1

2

DISCONNECT ALL TEST LEADS AND SWITCH OFF THE INSTRUMENT
BEFORE REMOVING THE BATTERY COVER - HAZARDOUS VOLTAGE!
DO NOT CHARGE IF BATTERY COMPARTMENT CONTAINS ALKALINE CELLS!

3

4

5

Legend:

1..........Plastic housing.

2..........Screw (4 pieces) to fix the battery cover.

3..........Battery compartment cover.

4..........Battery cover warnings.

5..........Trade mark label.

POWER SUPPLY: 4 × 1,2 V - NiCd, NiMH RECHARGEABLE (IEC LR 14)
or 4 × 1,5 V ALKALINE BATTERIES (IEC LR 14)

VOR OFNEN DES BATTERIEFACHS ALLE ZULEITUNGEN VOM GERAT
ENTFERNEN UND DAS GERAT AUSSCHALTEN - GEFAHRLICHE SPANNUNG!
NICHT AUFLADEN WENN ALKALZELLEN VERWENDET SIND!

STROMVERSORGUNG:

oder 4×1,5V - ALKALZELLEN (IEC LR 14)

4×1,2V - NiCd, NiMH AUFLADBAR (IEC LR 14)

Fig. 3. Bottom section

2.5. Accessories

The instrument consists of standard and optional accessories. Optional accessories can
be delivered upon request. See attached list for standard configuration and options or
contact your distributor or see the METREL home page:

http://www.metrel.si .

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MI 2123 Insulation/Continuity Tester Warnings and Messages

3. Warnings and Instrument Messages

3.1. Warnings

In order to reach highest level of operator’s safety while carrying out various
measurements and tests using the SMARTEC Insulation / Continuity Tester, as well
as to ensure the test equipment remains undamaged, it is necessary to consider the
following general warnings:

• If the test equipment is used in a manner not specified in this Users Manual,

the protection provided by the equipment may be impaired!

• Do not use the instrument and accessories if any damage is noticed!

• In case of blown fuse, follow the instructions in this Instruction Manual to

replace it!

• Service intervention or calibration procedure is allowed to be carried out

only by a competent, authorised person!

• Consider all generally known precautions, in order to avoid risk of electric

shock while dealing with electrical installations!

• Use only standard or optional test accessories supplied by your distributor!

•

•

• Disconnect all test leads and switch power off before opening Battery cover!

• Do not charge when alkaline batteries are fitted!

!

symbol at the instrument means “Read the Users Manual with special

care!” The symbol requires an action!

symbol on LCD indicates that the measurement results show an irregular

!

condition of the item under test which may present a hazardous live voltage.

3.2. Instrument Messages

Messages are generated on the LCD using special symbols and numeric segment
combinations. The next figure shows all possible display segments and the table under
the figure describes the messages.

Result value

Low battery
Higher than

Warning!

Mains voltage present

at test terminals

Fig. 4. Display segments

Unit of displayed result

Operation with storage

Cursor to indicate
compensated test leads

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