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timed relay


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Tame Iti 
Member - Posts: 9
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Joined: May 06, 2002
Location: New Zealand
Posted: June 13, 2005 at 7:19 AM / IP Logged  
Hi .I need a relay circuit to energize the relay 10 seconds after the power is connected .
I need it for a paging system to be connected to the sirens output ,so when the alarms sounds ..10 seconds later it will become active via relay .As, if I dont have the timed circuit it will page when the car is armed and disarmed every time .
Many thanks to those who can help
timed relay -- posted image. timed relay -- posted image.
soundmasta 
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Joined: November 17, 2004
Location: United States
Posted: June 13, 2005 at 8:23 AM / IP Logged  
dei makes a timer module you can use to control your relay. a 528t i think.
Theshadow27 
Member - Posts: 38
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Joined: April 21, 2005
Location: Virginia, United States
Posted: June 15, 2005 at 12:05 PM / IP Logged  
The capacitor allows the coil of the relay to be energized until the capacitor stores a charge, thus de-energizing the coil. The resistor bleeds off the charge of the capacitor when positive voltage is removed from the other side of the coil. You can increase the output time by simply changing the value of the capacitor. This one will give you about a 1/2 second output.
 
timed relay -- posted image.
704acc 
Copper - Posts: 55
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Joined: March 01, 2005
Location: United States
Posted: June 15, 2005 at 7:32 PM / IP Logged  
I think that is the opposite of what Tame Iti is looking for.  Try www.amperite.com and look at the C Series Solid State time delay relay 12DNO.1-60C
Ray Kane
hotwaterwizard 
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Location: California, United States
Posted: June 15, 2005 at 11:04 PM / IP Logged  
timed relay -- posted image.
John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !
hotwaterwizard 
Silver - Posts: 1,350
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Joined: December 11, 2003
Location: California, United States
Posted: June 15, 2005 at 11:06 PM / IP Logged  
timed relay -- posted image.
John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !
soundmasta 
Silver - Posts: 246
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Joined: November 17, 2004
Location: United States
Posted: June 16, 2005 at 7:33 AM / IP Logged  
dei makes a timer module that you can use to control the relay.
704acc 
Copper - Posts: 55
Copper spacespace
Joined: March 01, 2005
Location: United States
Posted: June 16, 2005 at 7:38 AM / IP Logged  

The DEI unit does the OPPOSITE of what he is looking for.  He wants the relay to latch AFTER the power is applied.  The DEI unit latches right away and will remain latched for a set period of time after power is removed.  much like the diagram above. 

I went through this already on my previous post on this subject.  I ended up with the amperite product.

Ray Kane
soundmasta 
Silver - Posts: 246
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Joined: November 17, 2004
Location: United States
Posted: June 16, 2005 at 9:19 AM / IP Logged  

you can use the dei module to controrl the relay. it will work i've done it before.

Theshadow27 
Member - Posts: 38
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Joined: April 21, 2005
Location: Virginia, United States
Posted: June 16, 2005 at 6:00 PM / IP Logged  

704acc wrote:
I think that is the opposite of what Tame Iti is looking for.  Try www.amperite.com and look at the C Series Solid State time delay relay 12DNO.1-60C

switch the 87 and 87a connectors? comon lol

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