Desi Local UPS Voltage amp

Discussion in 'General Electronics Chat' started by piyamnama, May 25, 2016.

  1. piyamnama

    Thread Starter New Member

    May 25, 2016
    1
    0
    hi
    i have a desi local UPS, 1KVA.
    i want to know few things.
    1- how can i use clamp meter and multi meter to check.
    a- how to check battery voltage.
    b- how to check charging voltage.
    c- how to check load on it in voltage
    d- how to check charging amp
    e- how to check load amp

    (please guide by which meter to use and on what portion of meter to select)


    2- my ups is charging slowly what i mean that when i charge the battery from battery show and use it give full backup time of more then an hour. but after once it give backup its time of backup decreases as don't battery don't get fully charged.

    images of board is attached
     
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