Aller au contenu principal

Un système d'alimentation sans interruption (ASI ou en anglais UPS - Uninterruptible Power Supply ), également bloc d'alimentation sans coupure ou onduleur ou batterie de sauvegarde, est un appareil électrique qui fournit une alimentation de secours à une installation lorsque la source d'alimentation, typiquement secteur, échoue.

48 questions Voir tout

Identifying & Disabling piezoelectric component in Liebert GXT3 UPS

Block Image

Block Image

Block Image

I bought on eBay an used Liebert GXT3 2000VA UPS for my desktop computer. When power goes off (pretty common where I live) the UPS takes over and its alarm immediately starts beeping, something like once every 3 seconds, what for some people/company may be useful, but it is pretty annoying for me.
I am not electronic savvy but I have discover that the electronic component responsible for the alarm sound is a thing called piezoelectric component. Most of these things are like a small cylinder with a hole in the center, but when opening the UPS I could not locate such a thing.
I have 2 questions:

  1. Could anyone point me exactly where it is located ?
  2. How to properly disable it for good ?

Thanks for any help.

Répondu ! Afficher la réponse J'ai le même problème

Cette question est-elle utile ?

Indice 0
Ajouter un commentaire

2 Réponses

Solution retenue

Posting the solution here for future searches.

The piezoelectric buzzer is located on a small board, inside the front panel of the GXT3 2000VA.

For more detail and pics, check the link below:

https://www.edaboard.com/threads/identif...

I have just added a little of silicon in the hole, let it dry, and now the baby is completely silent.

Cette réponse est-elle utile ?

Indice 0
Ajouter un commentaire

@tetelestai07 post some pictures of your circuit boards etc. with your question. It is probably easier to help you find it then it is to find a component layout diagram for your UPS. Make sure the pictures are focused and large enough so they can be zoomed into, to identify the components. Ajout d'images à une question existante

Cette réponse est-elle utile ?

Indice 0

1 commentaire:

just did it, thanks.

par

Ajouter un commentaire

Ajouter une réponse

Tetelestai07 sera éternellement reconnaissant.
Nombre de vues :

Dernières 24 heures : 0

7 derniers jours : 0

30 derniers jours : 4

Total : 54