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MI 3103 GigaOhm Instrument description

5

2. Instrument description

2.1 Instrument casing

The instrument is housed in a plastic casing, which maintains the protection class
defined in general specifications.

2.2 Operator’s panel

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

TEST

GigaOhm 1kV

MI 3103

CAL

Fig. 1. Front panel

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Summary of Contents for MI 3103

Page 1: ...GigaOhm 1kV MI 3103 User Manual Version 1 3 Code No 20 750 842...

Page 2: ...metrel si Mark on your equipment certifies that this equipment meets the requirements of the EU European Union concerning safety and interference causing equipment regulations 2005 METREL No part of...

Page 3: ...ssories 7 3 Warnings and instrument messages 8 3 1 Warnings 8 3 2 Instrument messages 9 4 Measurements 10 4 1 Insulation resistance 10 4 2 R 200mA 11 4 3 Rcon 13 4 4 Compensation of test leads resista...

Page 4: ...sulation resistance test voltages 250 V DC 500 V DC 1000 V DC Automatic discharge of tested item after measurement completion Automatic test voltage polarity exchange in Continuity 200 mA function Rco...

Page 5: ...ng The instrument is housed in a plastic casing which maintains the protection class defined in general specifications 2 2 Operator s panel The operator s panel consists of a custom LCD a rotary switc...

Page 6: ...ing any key is taken for more than 10 minutes 4 Front label 5 Rotary switch to select measurement function 6 CAL key to compensate resistance of the test leads 2 3 Connectors Use original test accesso...

Page 7: ...n label 3 Battery cover 4 Screw to fix battery cover 5 Battery holder 6 Fuse 2 5 Accessories The instrument set consists of standard and optional accessories Optional accessories can be delivered upon...

Page 8: ...ntion or adjustment 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 el...

Page 9: ...ure shows all possible display segments and the table under the figure describes the messages Unit Fig 4 Display segments Description of possible display messages o r Result is out of range CAL Test l...

Page 10: ...hing the measurement Falling voltage will be displayed in that case do not disconnect test leads until the voltage drops below 30 V Measurement is finished when voltage drops below 8V The following fi...

Page 11: ...ishing the measurement and the actual voltage is displayed during discharge operation only if high capacity is present on the test leads Positive pole of test voltage is attached to the red test termi...

Page 12: ...t is concluded after pressing the TEST key again The latest result will stay on the display disconnected switches L1 L2 L3 N PE RCD PE N L3 L2 L1 TEST GigaOhm 1kV MI 3103 CAL Fig 7 Example of instrume...

Page 13: ...e during the test How to carry out the measurement Select Rcon function with the rotary switch knob Make sure the test leads are compensated see the instructions in the chapter 4 4 Connect test leads...

Page 14: ...tion sound indicates that the new calibration values were accepted successfuly Note Max resistance that can be compensated is 5 If total measured resistance is higher than 5 e g open test leads then a...

Page 15: ...If a low battery state is indicated the batteries have to be replaced to ensure accurate measurements The instrument is switched off automatically when battery voltage drops down to 4 2 V bat indicat...

Page 16: ...ns The fuse can blow if an external voltage is connected to the test terminals during the measurement See the fig 16 for fuse location Warning Replace blown fuse with prescribed one only M0 315A other...

Page 17: ...of reading 1000 1999 1 25 of reading Nominal output voltages 250 V 500 V 1000 V Output voltage tolerance 0 20 Measuring current min 1 mA at 250 k 250 V 500 k 500 V 1 M 1000V Short circuit current 2 m...

Page 18: ...sation of test leads up to 5 yes Short circuit test current up to 7 mA Measurement mode continuous measurement One set of alkaline cells can supply the instrument for more than 90 hours Voltage U Meas...

Page 19: ...gory CATIII 300 V Pollution degree 2 Protection degree IP 40 Reference conditions Reference temperature range 10 C 30 C Reference humidity range 40 RH 70 RH Operating conditions Working temperature ra...

Page 20: ......

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