User manual CARLO GAVAZZI EM 21 DATASHEET

[. . . ] B, pressing again button 2, -C appears in the bottom row, indicating the possibility to decrease the values by means of button 1. C, To confirm the selected value, hold button 2 pressed until the mark - of letter C disappears. Wrong phase sequence indicator (4, fig 1), the hazard triangle is displayed in case of wrong phase sequence (L2-L1-L3, L1-L3-L2). [. . . ] Note: the displayed values are within the rated accuracy 10 minutes after every instrument power-on. I Transformer l'instrument de montage en guide DIN en monTo remove the display unit, by means of a screwdriver of suitable dimentage à panneau et vice-versa. To transform the instrument from panel fitting to DIN guide fitting, rotate the measurement base from A to B. To transform the instrument from DIN guide fitting to panel fitting, rotate the measurement base from B to A. To insert the display unit, gently push it (6) in its seat, as shown in the images, until you hear the "clicks" of the elastic tabs (3 and 4) which signal the correct fitting in the slots (1 and 2). C 1 If the instrument is used as converter, that is without display unit, siège prédisposé comme les images sur le côté l'illustrent jusqu'à ce the green LED shows that the instrument is powered, if the LED qu'on avertisse les "clics" des languettes élastiques de fixation (3 et 4) ce flashes, it shows that the instrument is connected to the serial qui signifie l'encastrement correct de celles-ci dans les fentes (1 et 2) de fermeture. [2]- 3-ph, 4-wire, unbalanced load, 3-CT and 3-VT/PT connections 6A System type selection 3P [3]- 3-ph, 3-wire, unbalanced load, 3-CT connection. [4]- 3-ph, 3-wire, unbalanced load, 3-CT and 2-VT/PT connections [5]- 3-ph, 3-wire, unbalanced load, 2-CT connnections (ARON). [6]- 3-ph , 3-wire , unbalanced load , 2-VT/PT and 2-CT connections (ARON) 6A System type selection 3P. 1 [7]- 3-ph, 3-wire, balanced load, 1-CT connection (if the neutral is available the voltage connection can be realized to only 2-wire VL1 and N). If the instrument is used in a manner not specified by the producer, the protection provided by the instrument may be impaired. Maintenance: make sure that the connections are correctly carried out in order to avoid any malfunctioning or damage to the instrument. To keep the instrument clean, use a slightly damp cloth; do not use any abrasives or solvents. Note: the external current transformers can be connected to earth individually. [. . . ] Key-pad: two push buttons for variable selection and programming of the instrument working parameters. Addresses 247, selectable by means of the front keypad. The maximum power being measured cannot exceed 210 MW calculated as maximum input voltage and current. [. . . ]