Bedienungsanleitung Metrel MI 3121H SMARTEC 2.5 kV (Seite 3 von 44) (Englisch)

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MI 3121H Smartec 2,5 kV Insulation / Continuity Table of contents

1 Preface.........................................................................................................................5

2 Safety and operational considerations.....................................................................6

2.1 Warnings and notes...............................................................................................6

2.2 Battery and charging .............................................................................................8

2.2.1 New battery cells or cells unused for a longer period.....................................9

2.2.2 Auto Power Off...............................................................................................9

2.3 Standards applied................................................................................................10

3 Instrument description.............................................................................................11

3.1 Front panel ..........................................................................................................11

3.2 Connector panel ..................................................................................................12

3.3 Back panel...........................................................................................................13

3.4 Display organization ............................................................................................14

3.4.1 Function field................................................................................................14

3.4.2 Result fields..................................................................................................14

3.4.3 Message field ...............................................................................................15

3.4.4 Auxiliary monitor...........................................................................................15

3.4.5 Battery indication..........................................................................................16

3.4.6 Other messages...........................................................................................16

3.4.7 Backlight.......................................................................................................16

3.5 Instrument set and accessories...........................................................................17

3.5.1 Standard set.................................................................................................17

3.5.2 Optional accessories....................................................................................17

4 Instrument operation................................................................................................18

4.1 Function selection................................................................................................18

4.2 Settings ...............................................................................................................19

4.2.1 Initial settings................................................................................................19

4.2.2 Date and time...............................................................................................20

5 Measurements ..........................................................................................................21

5.1 Insulation resistance............................................................................................21

5.1.1 Insulation resistance measuring procedure..................................................21

5.1.2 The DAR and PI diagnostic ..........................................................................23

5.1.3 Guard terminal..............................................................................................24

5.2 Resistance of earth connection and equipotential bonding .................................26

5.2.1 RLOW, 200 mA resistance measurement....................................................26

5.2.2 Continuous 7 mA resistance measurement CONT.......................................27

5.2.3 Compensation of test leads resistance.........................................................29

5.3 Voltage and frequency.........................................................................................30

6 Data handling............................................................................................................32

6.1 Memory organization...........................................................................................32

6.2 Data structure......................................................................................................32

6.3 Storing test results...............................................................................................33

6.4 Recalling test results ...........................................................................................33

6.5 Clear / recall options............................................................................................34

6.5.1 Clearing complete memory content..............................................................34

6.5.2 Clearing individual results at selected location.............................................35

6.6 Communication....................................................................................................36

7 Maintenance..............................................................................................................37

7.1 Fuse replacement................................................................................................37

7.2 Cleaning ..............................................................................................................37

Metrel MI 3121H SMARTEC 2.5 kV Seite 3

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