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Joined: Jan 2006
Posts: 356
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Joined: Jan 2006
Posts: 356 |
Any entry system gurus out there? I have an electric strike opening a door. It can be opened with the intercom system or the membrane keypad. There is a relay in the wiring closet too. You can hear the electric strike click but the property owner wants a buzz or some kind of louder noise when the strike is engaged. Any suggestions will be greatly appreciated.
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Joined: Feb 2005
Posts: 12,354 Likes: 4
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Joined: Feb 2005
Posts: 12,354 Likes: 4 |
Something you need to know is that AC strikes buzz while DC strikes do not. It's usually a matter of preference. Apparently you have a DC operated strike. Replace it with an AC strike and power it with a simple transformer rather than a DC power supply.
-Hal
CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.
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Joined: May 2007
Posts: 5,059 Likes: 6
Moderator-1A2, Cabling
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Moderator-1A2, Cabling
Joined: May 2007
Posts: 5,059 Likes: 6 |
Not to be too simplistic, but why not parallel a buzzer of the appropriate voltage (usually 24V) - I think Edwards still makes them - and tuck it up inside the door jam.
Sam
"Where are we going and why are we in this hand basket?"
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Joined: Jan 2007
Posts: 1,951 Likes: 2
RIP
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RIP
Joined: Jan 2007
Posts: 1,951 Likes: 2 |
Many popular door strikes, such as those from Adams-Rite, will operate on either AC or DC. It could be something as simple as swapping transformers. If I were on site, the first thing I would do is take a look at the markings on the side of the door strike (two screws should allow removal) and see what the allowable current and duty cycle is.
"Press play and record at the same time" -- Tim Alberstein
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Joined: Feb 2005
Posts: 12,354 Likes: 4
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Joined: Feb 2005
Posts: 12,354 Likes: 4 |
I believe the AC/DC strikes are actually DC with a built in bridge rectifier to allow them to operate on AC as well. Won't buzz even with AC.
Does bring up a good point though, it already may be powered by a transformer that you won't have to replace.
-Hal
CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.
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Joined: Jan 2006
Posts: 356
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Hal is right - this buzzer works with DC but not AC. I think I can just install this in-line with the strike right? https://www.nokey.com/pisibu.html
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Joined: Jan 2006
Posts: 356
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I forgot to thank you guys for your time and response - again! What a great site this is. The pool of knowledge is pretty comprehensive, and everyone is very gracious in responding. Thanks as always.
BF
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