GigaOhm 5kV
MI 3202
User Manual
Version 1.4, Code No. 20 751 271
Distributor:
Producer:
METREL d.d.
Ljubljanska 77
SI-1354 Horjul
Tel.: +386 1 75 58 200
Fax: +386 1 75 49 226
E-mail: metrel@metrel.si
http://www.metrel.si
Mark on your equipment certifies that this equipment meets the require ments of the EU
(European Union) concerning safety and electromagnetic compatibility regulations
© 2007, 2010 Metrel
No part of this publication may be reproduced or utilized in any form or by any means
without permission in writing from METREL.
2
MI 3202 GigaOhm 5 kV Table of contents
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 LC Display.....................................................................................................5
2.3 Operator’s Panel ...........................................................................................6
2.4 Connectors.................................................................................................... 7
2.5 Accessories...................................................................................................
2.6 Test leads......................................................................................................
8
8
3 Warnings ............................................................................................................
4 Performing measurements ...............................................................................
4.1 Switching on the instrument ........................................................................
5 Measurements....................................................................................................
5.1 Generally about DC High voltage testing.....................................................
5.2 Guard terminal.............................................................................................
5.3 Insulation Resistance measurement ...........................................................
5.4 Voltage measurement .................................................................................
6 Maintenance.......................................................................................................
6.1 Inspection....................................................................................................
6.2 Insertion and charging batteries for the first time.........................................
6.3 Replacement and charging batteries...........................................................
6.4 Cleaning......................................................................................................
6.5 Calibration...................................................................................................
6.6 Service ........................................................................................................
7 Specifications ....................................................................................................
7.1 Measurements.............................................................................................
7.2 General specifications.................................................................................
10
12
12
14
14
15
16
17
19
19
19
19
21
21
21
22
22
24
3
MI 3202 GigaOhm 5 kV General introduction
1 General introduction
1.1 Features
The GigaOhm 5kV Tester is a portable battery / mains powered test instrument
intended for simple testing of Insulation Resistance by using high test voltages of up to
5 kV. It operates on a SIMPLE and CLEAR basis.
The instrument is designed and produced with the extensive knowledge and experience
acquired through many years of dealing with similar test equipment.
Available functions offered by the GigaOhm 5kV Tester:
High Insulation Resistance measurement up to 1 T
Programmable test voltage: 250 V, 500 V, 1 kV, 2.5 kV, 5 kV;
Automatic discharge of tested object after measurement completion;
Voltage and frequency measurement up to 600 V AC/DC.
A segment LCD offers easy-to-read results and all associated parameters. Operation is
simple and clear; the operator does not need any special training (except reading and
understanding this Users Manual) to operate the instrument.
1.2 Applied Standards
Instrument operation IEC / EN 61557-2
Electromagnetic compatibility (EMC) EN 61326 Class B
Safety EN 61010-1 (instrument),
EN 61010-031 (accessories)
4
MI 3202 GigaOhm 5 kV Instrument Description
2 Instrument Description
2.1 Instrument Casing
The instrument is housed in a plastic box that maintains the protection class defined in
the general specifications.
2.2 LC Display
The segment LCD has a backlight and offers easy-to-read results and all shows all
associated parameters. See Fig.1 below.
Fig. 1. LC Display
Legend:
1.......... Battery indicator. It indicates condition of the battery. In battery charging mode
it flashes.
2.......... Hazardous Voltage Warning icon. It indicates that the voltage higher than
70 V may be present at the test terminals!
3..........Analogue display.
4..........Auxiliary digital display.
5..........Auxiliary units. Units for parameters displayed on auxiliary display.
6..........Analogue units. Units for parameters displayed on analogue display.
7..........Bar graph.
8..........Warning icon. Read the User Manual with special care!
9..........Pass or Fail icon.
10........Main units.
11........Main digital display.
12........Test voltage. Menu for selecting the test voltage.
5
MI 3202 GigaOhm 5 kV Instrument Description
2.3 Operator’s Panel
The operator’s panel is shown in Fig. 2 below.
Fig. 2. Front panel
Legend:
1.......... key to switch to Insulation measurement mode and to set limit value.
2..........V key to switch to Voltage measurement mode.
3..........Light key to turn the display backlight ON or OFF.
4..........
..........
5
6..........START/STOP key to start or stop insulation measurement.
7..........ON/OFF key to switch the instrument ON or OFF.
cursor
cursor
4
key to decrease the test voltage parameter
key to increase the test voltage parameter
6
and to select limit value.
and to select limit value
.
MI 3202 GigaOhm 5 kV Instrument Description
2.4 Connectors
The GigaOhm 5 kV Tester contains the following connections:
- Connection of test leads to four banana safety sockets (Fig. 3),
- Mains supply cable connection to the mains socket (Fig. 4).
Fig. 3. Test leads connector
1..........Negative Insulation Resistance test terminal. (-OUT)
2..........GUARD test terminals intended to lead away potential leakage current while
measuring the Insulation. Both green sockets are connected together inside the
instrument.
3..........Positive Insulation Resistance test terminal (+OUT)
Use original test accessories only!
Max. allowed external voltage between test terminals and ground is 600V!
Max. allowed external voltage between test terminals is 600V!
7
MI 3202 GigaOhm 5 kV Instrument Description
Fig. 4. Mains connector
1..........Mains connector to connect the instrument to the mains supply.
Use original mains supply cable only!
2.5 Accessories
The accessories consist 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.
2.6 Test leads
The standard length of test leads is 2m, optional lengths are 8m and 15m. For more
details see attached list for standard configuration and options or contact your
distributor or see the METREL home page: http://www.metrel.si.
All test leads are made of high voltage shielded cable, because shielded cable provides
higher accuracy and immunity to disturbance of measurements that can occur in
industrial environments
8
Loading...