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jskiba(at)icosa.net
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 Posted: Sat Sep 14, 2013 3:12 pm Post subject: Looking for a circuit that when you press a button powers |
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Thanks for the tip,
I guess I am not following the layout of the circuit with this device,
I see in the data sheet
[img]cid:image001.png(at)01CEB173.A979CBD0[/img]
But not exactly seeing how the push button is in series with the load. Aka if button released then load is turned off before max time on ??
Am I looking at the wrong function for this pre made device?
From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Bob McCallum
Sent: Saturday, September 14, 2013 3:19 PM
To: aeroelectric-list(at)matronics.com
Subject: RE: AeroElectric-List: Re: Looking for a circuit that when you press a button powers th
Jeff;
Momentary normally open pushbutton in series with a timer which opens the load after the preset delay time. Because button is momentary and in series with the load and the timer, it must be held to power the load for any period of time. Any time it is released the load loses power. The timer opens the load after the preset delay even if the button is still maintained. Releasing the button resets the timer whether or not it has timed out.
Provides exactly the functionality you describe. One example of such a timer is Omron H3RN-1 which is available in 12 VDC (also 24 VAC and 24 VDC) and in 2 timing ranges from .1 sec to 10 min OR .1 min to 10 HR. This particular timer will switch a resistive load of 3 amps up to 250 Volts. Spec sheet found here; http://tinyurl.com/mruy73u
This is a plug in solid state timer with a relay output (SPDT)
Bob McC
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