The Siren Board

Discussion of Outdoor Warning Systems
It is currently Sun Aug 07, 2022 7:28 pm

All times are UTC




Post new topic  Reply to topic  [ 1 post ] 
Author Message
PostPosted: Mon Jan 24, 2022 10:45 pm 
Offline
Registered User
Registered User
User avatar

Joined: Thu Jun 24, 2021 7:13 pm
Posts: 106
Real Name: Alfie
Location: Grimsby, NEL
Karma: -197
This is a commonly asked question for people that come to me for questions. “How do fire stations test sirens?” Well here is your answer!!

Standardly, fire stations often test their sirens in “Noon whistles” or “Noon Blasts” which at a certain time they will be set off for a few seconds after fully winding up, then letting it wind back down again before ending the test. In some modern controllers, like for the Modern Federal Signal Model 2 controllers, you can set noon blast controls for the siren to test at certain times automatically or for a button to be pressed.

Sometimes, a signal known as “Growl” is used, which involves the siren being turned on until winding up halfway, then winding back down again. Most commonly, allertors and older sirens are tested in these signals. They are not as common as Noon Blasts however.

Sometimes Coded blasts can be sent out by specific sirens to go with the noon blasts, but this is an incredibly rare sight as not many fire sirens have solenoids in them. They do exist however.

Or some test for twenty or so seconds as a “short alert” or “short attack” which is not as common as a noon blast but is more common than a growl test. Our old fire station used to test in this signal for their Darley 3V8 before being replaced by a thunderbolt.

_________________
NotVoyager
Real name: Alfie Smith


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 1 post ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to: 

Powered by phpBB® Forum Software © phpBB Limited