Re: Sick sirens!
Posted: Sat May 16, 2015 5:10 pm
Here was a Model 5T from Hawaii. It was rusty and sounded very sick. Sadly it has since been replaced by a Modulator.
https://youtu.be/Mt8ZDl_j1NA
https://youtu.be/Mt8ZDl_j1NA
Discussion of Outdoor Warning Systems
https://www.airraidsirens.net/forums/
It's not that, the brushes are advanced too far back which causes the siren to run slower.Mark N wrote: As for those 5Ts, they sound single phase, which tends to lead to issues.
What is making it do that?Ziginox wrote:
https://www.youtube.com/watch?v=WeYqvdyWwsM
Bonneville County's only 3016, I doubt it's been fixed yet.
To me it looks to be a low voltage issue with both the sound/low volume and that it isn't able to rotate. It probably has some seriously old (and nearly-dead) batteries in the control cabinet, could be a case of the city forgetting the siren has batteries. I'm not so sure that these earliest examples of WS-series controllers had a low-voltage cutout like the later controllers have, so that could be the reason why it's still trying to operate at such a low input voltage whereas normally a "newer" controller (ESC-864 and onward) wouldn't allow the siren to run. I could be wrong though since I haven't really ever had the chance to really study one of those old pre-864 controllers before, maybe Mr. Dennis "Whelen Master" Clark could help shed some light if he sees this and knows about them.Im a Siren Addict3 wrote:What is making it do that?