I have fitted a Galaxy G2-20. I have fitted a Pryonix deltabell E to system which is fully working. But i recently added an internal sounder to the panel and i have problems. I wired both bells by putting all wires in same terminals. I.E Both reds (h/0+) both blacks (h/o-) both blues (trigger) ad both yellows (tamper) when i put the siren into panel the deltabell starts ringing and will not stop until i take it out again. But the new internal siren works fine. I have wired it like this before and it has worked. Is it a case that i have to join the tamper from one bell to the neg from the other? or is there some sort of power issue?????

What make is the internal sounder.

And wire it like two EWDs in series.

It's an elemdene internal siren. What you mean by ewd

Your external sounder.

You mean what I said about linking tamper to negative in panel. I'm not an alarm engineer. I trained for a while and stopped. So not familiar with wiring to bells in series

2 x Sounders on a galaxy 2/20 I would fit a PSU as they don't have the best current rating.

I had a slight issue when fitting pyronix. Kept saying bell tamper. But I forgot to link a tamper terminal to 0v in bell. In the internal siren I have +v -v, t, r. I have wired these sounders lots of times before. It's working fine on its own.

And the deltabell rings when I connect the internal and it stops when I remove it, and I have no bell tamper. I first thought I must be creating a tamper in the deltabell when connection internal

And the deltabell rings when I connect the internal and it stops when I remove it, and I have no bell tamper. I first thought I must be creating a tamper in the deltabell when connection internal

Ok thanks will do. But I can't help but think back to it. I think the delta went off when I connected + -

Also I remember that the I wired an ADT elemdene ext bell with an elemdene internal siren the way I described on my first post and it worked. So it must be the deltabell that's causing issue or the power. But I thought the bells draw current when they are in alarm?

If it is the SAB type Elemedene they both draw power when in standby, not a lot, but they do.

I think you need to use the Deltabell as a SCB and then wire as I said in series with the Tampers.

Have you used a 6 or 8 core to the Delta? You can feed back to the TR- from the Elemdene that way.

As mentioned you want to watch the total current draw of the two.