Multiple PIR's and Security lights

[duxster]

Hi all

Was woken in the night by a neigbour advising that we had all been visited by the local toe rag!! Not much taken this time luckily but decided to increase the number of security lights around the house.

Wiring them up is fine but wondered whether there was an easy way of using multiple PIR senors which would trigger all the lights regardless of which sensor was tripped?

Cheers

Robert

 

[Qedelec]

There are several on the market that will do what you require. Each sensor is connected by 4 core alarm cable.
Voltek manufacture a unit that will supply 2500W of floodlighting, if that doesn't deter the little scroat then set the TV remote to STUN!
Voltek also can supply a command center that will bleep every time someone crosses the beam, even in daytime.

 

[duxster]

hi

Thanks for the info. do you know any suppliers of them on the net?

Robert

 

[ban-all-sheds]

How hard is this: http://uk.altavista.com/web/results?tlb=1&fr=tb&kgs=0&ienc=utf8&q=voltek ??

 

[duxster]

Tried it, great if I wanted loads of links with security cameras and high energy power units!!!

Will keep searching...

 

[Diyisfun]

I think you were being referred to www.voltek.co.uk as this is what

Qedelec

referred you to.
Contact them & ask for a local supplier.Keep

 

[Steve]

is there no way to wire up several PIRs in parallel (cheaply), like light switches in parellel, so any one can join the gap and turn the lights on?

----------------------------------- live
........../........../............/......./ / = PIRS
----------------------------------- switched live

like that lol. Or does each PIR need its own power supply? could it be done with a run of 3c+e daisychained to each PIR?

 

[tim_h]

Yep, you can connect them like that if they are the standard lighting PIR. Obviously you have to ensure each on is capable of switching the total lighting load.
Only trouble is, when on starts playing up and sticks on, you have to disconnect them one at a time to work out which one it is.
It's a cheaper solution, but certainly not the most user friendly!

 

[Adam_151]

is there no way to wire up several PIRs in parallel (cheaply), like light switches in parellel, so any one can join the gap and turn the lights on?

yes, but they have a max switching load of about 2000w IIRC, which means you will be limited to 4 500w halogens at the max, reqardless of how many sensors you fit

 

[ban-all-sheds]

Tried it, great if I wanted loads of links with security cameras and high energy power units!!!

FFS they are 4th on the list, 5th if you don't ignore the paid-for one at the top...

 

[plugwash]

oops wrong topic

 

[breezer]

who says you have to use flood lights?

i would not go for the "can i do it cheapley option" it usually costsmore in the long run, and can also be a pain

 

[alertelec]

Also try Smiths Timeguard or GJD which are generally regarded as a quality product.

Has anyone heard of 'back EMF' between two PIR's on the same circuit causing the other PIR problems?

 

[Tetch]

If you run up against the maximum switching load too quickly, there's no reason why you can't install LED lamps in the floodlight housing.
I have three security units on my house, each with 3 LED lamps inside (the old type, not CREE) and these have worked for years.
The lamps don't take much more current than the PIR unit uses, but I switch them anyway to prolong their life.
My reason for using LEDs was that using a halogen lamp is like running a bar fire to heat your garden... stoooopid.
Halogen lamps inside, yes, they heat your room when you're in it, outside? No.

Hope this makes sense

 

[Alarm]

Also try Smiths Timeguard or GJD which are generally regarded as a quality product.

Has anyone heard of 'back EMF' between two PIR's on the same circuit causing the other PIR problems?

Very , very rarely.