Kyoritsu 4120A Uživatelský manuál stáhnout pdf (Strana 2)

CONTENTS

1. SAFE TESTING .............................................................................. 1

2. PROCEDURE OF REMOVING COVER ......................................... 3

3. FEATURES ...................................................................................... 4

3.1 Instrument Layout .................................................................... 4

3.2 Test Lead .................................................................................. 5

3.3 Features ................................................................................... 5

4. SPECIFICATIONS .......................................................................... 7

5. OPERATING INSTRUCTIONS ....................................................... 8

5.1 Initial Checks ............................................................................. 8

5.2 Measurement of the Loop Impedance ...................................... 9

5.3 Measurement of Prospective Short Circuit Current ................. 10

6. DETAILED EXPLANATION ........................................................... 10

6.1 Measurement of Fault Loop Impedance and

Prospective Fault Current ....................................................... 10

6.2 Measurement of OLD-TT System ............................................ 15

6.3 Measurement of Line Impedance and

Prospective Short Circuit Current ............................................ 16

7. SERVICING ................................................................................... 17

8. CASE AND STRAP BELT ASSEMBLY ......................................... 17

1 2 3 4 5 6 7 ... 19 20

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Kyoritsu 4120A Uživatelský manuál Strana 2