Disabling Manual Override On Pir Floodlight

[christm]

Hello

I have several security PIR floodlights around the outside of the house. Unfortunately, living in the country, we are subject to frequent power cuts. If the power goes off and comes back on almost immediately, all the security lights come on and stay on. I know this is the 'feature' of these security lights….you switch off power and switch back on within a couple of seconds and light stays on permanently (until you switch off and wait 30 secs or so before switching back on).

However, if this power cut happens when I am away (as happened recently) it is a clear give-away that the house is not occupied as all the security lights are on permanently.

So here is the question. How can I disable or stop the manual override facility please? I never want the lights on permanently, only to detect motion at night. Really grateful for any help.

Thanks 

Chris

 

[SPECIAL LOCATION]

1/ Get different types of security lights...

or

2/  Wire the lights with a timer switch which removes the power at a set time for longer than 30 seconds ..

say for a few hours during daylight...

So if the lights have accidentally come on due to short power failure it will only be for a max of 1 day before the power is automatically removed for longer than the 30 seconds to reset them back to normal. 

may be other options...

but those are my first thoughts...

opcorn

 

[NozSpark]

You could supply them through an active RCD but then they wouldn't come back on until it was reset manually

Can you get a delay din rail timer? ?

Is there such a beast?

 

[Blue Duck]

Disable/bypass internal pirs and install external ones without this feature? How many lights are we talking about?

 

[Sidewinder]

...

Can you get a delay din rail timer? ?

Is there such a beast?

Yes Noz you can, I carry one on the van!

 

[Richard-the-Ninth]

For the expense / hassle it would be easier  / cheaper to change the PIR's to ones that DO NOT have this feature. (As has been said) The other thing to consider is that when the existing PIR's fail the OP will have wasted a lot of time. effort and money installing a "delay device" that is not required if the new PIR's do not have the "latch" facility

 

[Andy™]

very few PIR's dont do that. some stand alone units would work, but most built in wont

delay on timer as suggested earlier would probably be easiest

Yes Noz you can, I carry one on the van!

wont it be better inside the the van? may get a little wet outside

 

[christm]

Thanks very much indeed for your help and ideas. There are 8 units in total around house and outbuildings! 4 are joined at a common switching point, and 2 at another, so I could put a timer (or delay on timer) at those points. 

Thanks again for your help.

Chris

 

[Steve3948]

Would a Photo Cell work after the switch or as part of the switch.

Will cause enough delay to stop the override ?

 

[Andy™]

Would a Photo Cell work after the switch or as part of the switch.

Will cause enough delay to stop the override ?

only through the day, if it loses power for a few seconds at night, then it will switch on and stay on until morning

 

[Steve3948]

only through the day, if it loses power for a few seconds at night, then it will switch on and stay on until morning

Andy, that was my point, it would only be on at most for the night, where at the moment the override kicks in and it stays on 24/7, until reset.

 

[Richard-the-Ninth]

Would some one like to post a link to one of these said timers please.

All I have found so far are modern versions of the time delay switch you find in communal stair ways, or a brown out timer.

 

[NozSpark]

Most of these type of over rides stay on until daylight, not 24/7... IIRC

Google din rail delay timer.... it might come up with a multi function timer with delay on as one of its functions

 

[Sidewinder]

FInder do one, this is what my local wholesaler carries, hence what I carry 24-240V ac or dc IIRC.

Probably one of these I have:

http://gfinder.findernet.com//assets/Series/391/S80EN.pdf

However, it is in the back of the van, in a box, under the bench, it's cold & dark here, &, I can't get in to the van for clinical waste at the moment, so I'm not moving it to look!

Sorry!!!

IF I remember tomorrow when I sort the van out I'll look and let you know.

 

[Andy™]

Would some one like to post a link to one of these said timers please.

http://uk.rs-online.com/web/p/time-delay-relays/7740301/

 

[Sidewinder]

Would some one like to post a link to one of these said timers please.

All I have found so far are modern versions of the time delay switch you find in communal stair ways, or a brown out timer.

See my post #14, had not read yours before posting, my response was to Noz really.

http://uk.rs-online.com/web/p/time-delay-relays/7740301/

Yours looks like the Crouzet version of my Finder Andy!

 

[Richard-the-Ninth]

Thanks sidewinder :Salute

I found it on sale HERE

Now all that is required is some din rail and an adaptable box, glands x 2 (One for each set of lights)

(Edited to get link to work)

 

[Andy™]

Yours looks like the Crouzet version of my Finder Andy!

looks similar. ive got one in my van... although it is actually wired in and not a spare part...

 

[Sidewinder]

I pay less @ my local wholesaler though than Rapid!