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----- Supply network analyzer CVM-144 ------ User's manual --- Page No. 1

CONTENTS page

1.- DELIVERY SPOT CHECK .......................................................................................................... 2

2.- MAIN FEATURES ....................................................................................................................... 3

3.- MODELS ..................................................................................................................................... 5

4.- INSTALLATION AND START-UP............................................................................................... 6

4.1.- Installation. .................................................................................................................... 6

4.2.- CVM-144 connection terminal arrangement (power supply connection terminal) ............................. 8

4.3.- CVM-144 connection terminal arrangement (Expansion card) ..................................... 9

4.4.- Connection drawing for the CVM-144 : ....................................................................... 14

5.- OPERATION MODE ................................................................................................................. 18

6.- SET-UP PROCEDURE ............................................................................................................. 20

6.1.- Phase-to-Phase or Phase-to-Neutral voltages............................................................ 21

6.2.- Voltage display mode .................................................................................................. 21

6.3.- Voltage transformation ratio ........................................................................................ 22

6.4.- Current Transformer Primary ...................................................................................... 23

6.5.- Transformation ratio for the measurement of neutral and residual current................. 24

6.6.- Setting power demand utility screens.......................................................................... 26

6.7.- Initial screen setting..................................................................................................... 27

6.8.- Setting of the display shutdown time........................................................................... 27

6.9.- Clearing energy counters ............................................................................................ 28

6.10.- THD or D setting........................................................................................................ 29

6.11.- Additional screens when RELAY OUTPUTS (2 relays) are equipped ...................... 30

6.12.- Additional screens with 4 - 20 mA outputs y inputs................................................... 37

7.- SPECIFICATIONS .................................................................................................................... 42

8.- SAFETY CONSIDERATIONS................................................................................................... 44

9.- MAINTENANCE ........................................................................................................................ 44

10.- TECHNICAL SERVICE ............................................................................................................. 44

11.- CVM-144 COMMUNICATIONS ................................................................................................ 45

11.1.- To take into account !:.............................................................................................. 45

11.2.- RS-485 type connection to a RS-232 type input of a PC .......................................... 46

11.3.- RS-232 type connection to a RS-232 type input of a PC .......................................... 47

11.4.- MODBUS © protocol ................................................................................................ 48

12.- APPENDIX A: Second SET-UP of the CVM-144 ..................................................................... 54

12.1.- Communication setting.............................................................................................. 54

12.2.- SET-UP locking or unlocking .................................................................................... 55

13.- APPENDIX B: Insertion of an expansion module into a CVM-144 unit..................................... 56

1 2 3 4 5 6 7 ... 57 58

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Circutor CVM144 Series Manuale Utente Pagina 2