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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Any way to improve a floodlight's PIR range?
I've fixed a 500w floodlight to the wall of my house. Unfortunately the effective range of the PIR movement sensor is not quite enough. Its effective range seems to be about 7 metres and I need it to be at least 10M. Is there anyway I can increase the range of the sensor? TIA D. Dalton |
#2
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Any way to improve a floodlight's PIR range?
On 06/11/2011 21:25, D. Dalton wrote:
I've fixed a 500w floodlight to the wall of my house. Unfortunately the effective range of the PIR movement sensor is not quite enough. Its effective range seems to be about 7 metres and I need it to be at least 10M. Is there anyway I can increase the range of the sensor? Stick another standalone PIR sensor further away from the light to cover the currently uncovered area. http://wiki.diyfaq.org.uk/index.php?...ng_ with_PIRs -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#3
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Any way to improve a floodlight's PIR range?
In article ,
John Rumm writes: On 06/11/2011 21:25, D. Dalton wrote: I've fixed a 500w floodlight to the wall of my house. Unfortunately the effective range of the PIR movement sensor is not quite enough. Its effective range seems to be about 7 metres and I need it to be at least 10M. Is there anyway I can increase the range of the sensor? Stick another standalone PIR sensor further away from the light to cover the currently uncovered area. http://wiki.diyfaq.org.uk/index.php?...ng_ with_PIRs This sort of light combined with a PIR is a compromise, because the ideal light height is completely different from the ideal PIR height. If the PIR can be angled separately from the light, you could try angling the PIR up, but you will probably lose nearby coverage. Ideally, the PIR wants to be much lower than a 500W floodlamp, something like 8-10 feet for the PIR, 30 feet for the 500W floodlamp. 500W floodlamps are almost always incorrectly installed much too low down on homes, where what should have been used are several much lower power lights. If you use a floodlamp, it should be angled to prevent any light being emitted horizontally or upwards, i.e. always pointing down. Ideally, the mounting height should be about the same as the intended beam spread, but certainly no less than half this. Don't allow light to spill on to someone else's land or property without their permission. Don't allow light to spill onto a public path/roadway without ensuring there's no glare, i.e. the light bulb itself can't be seen by users of the path/road, and the lighting level isn't too high, either of which could temporarily destroy the road users' night vision. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] |
#4
Posted to uk.d-i-y
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Any way to improve a floodlight's PIR range?
On Nov 7, 11:42*am, (Andrew Gabriel)
wrote: In article , * * * * John Rumm writes: On 06/11/2011 21:25, D. Dalton wrote: I've fixed a 500w floodlight to the wall of my house. Unfortunately the effective range of the PIR movement sensor is not quite enough. Its effective range seems to be about 7 metres and I need it to be at least 10M. Is there anyway I can increase the range of the sensor? Stick another standalone PIR sensor further away from the light to cover the currently uncovered area. http://wiki.diyfaq.org.uk/index.php?...ng#Two_way_swi.... This sort of light combined with a PIR is a compromise, because the ideal light height is completely different from the ideal PIR height. If the PIR can be angled separately from the light, you could try angling the PIR up, but you will probably lose nearby coverage. Ideally, the PIR wants to be much lower than a 500W floodlamp, something like 8-10 feet for the PIR, 30 feet for the 500W floodlamp. 500W floodlamps are almost always incorrectly installed much too low down on homes, where what should have been used are several much lower power lights. If you use a floodlamp, it should be angled to prevent any light being emitted horizontally or upwards, i.e. always pointing down. Ideally, the mounting height should be about the same as the intended beam spread, but certainly no less than half this. Don't allow light to spill on to someone else's land or property without their permission. Don't allow light to spill onto a public path/roadway without ensuring there's no glare, i.e. the light bulb itself can't be seen by users of the path/road, and the lighting level isn't too high, either of which could temporarily destroy the road users' night vision. +1 That sounds like a good start for an outdor lighting article on the wiki. Fancy putting it on there? NT |
#5
Posted to uk.d-i-y
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Any way to improve a floodlight's PIR range?
500W floodlamps are almost always incorrectly installed much too low down on homes, where what should have been used are several much lower power lights. If you use a floodlamp, it should be angled to prevent any light being emitted horizontally or upwards, i.e. always pointing down. Ideally, the mounting height should be about the same as the intended beam spread, but certainly no less than half this. Don't allow light to spill on to someone else's land or property without their permission. Don't allow light to spill onto a public path/roadway without ensuring there's no glare, i.e. the light bulb itself can't be seen by users of the path/road, and the lighting level isn't too high, either of which could temporarily destroy the road users' night vision. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] Most installers seem to favour the theory of " Look how far the light will travel". Then they remain set like that until they eventually fall off the wall. |
#6
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Any way to improve a floodlight's PIR range?
On Mon, 7 Nov 2011 15:32:45 -0000, DerbyBoy wrote:
Most installers seem to favour the theory of " Look how far the light will travel". There is a farm the other side of the valley that has a couple of high pressure sodium (or something) lights that send enough light in our direction to read by! This farm is 3/4 of a mile away and 260' lower. -- Cheers Dave. |
#7
Posted to uk.d-i-y
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Any way to improve a floodlight's PIR range?
In article ,
NT writes: On Nov 7, 11:42*am, (Andrew Gabriel) wrote: This sort of light combined with a PIR is a compromise, because the ideal light height is completely different from the ideal PIR height. If the PIR can be angled separately from the light, you could try angling the PIR up, but you will probably lose nearby coverage. Ideally, the PIR wants to be much lower than a 500W floodlamp, something like 8-10 feet for the PIR, 30 feet for the 500W floodlamp. 500W floodlamps are almost always incorrectly installed much too low down on homes, where what should have been used are several much lower power lights. If you use a floodlamp, it should be angled to prevent any light being emitted horizontally or upwards, i.e. always pointing down. Ideally, the mounting height should be about the same as the intended beam spread, but certainly no less than half this. Don't allow light to spill on to someone else's land or property without their permission. Don't allow light to spill onto a public path/roadway without ensuring there's no glare, i.e. the light bulb itself can't be seen by users of the path/road, and the lighting level isn't too high, either of which could temporarily destroy the road users' night vision. +1 That sounds like a good start for an outdor lighting article on the wiki. Fancy putting it on there? Yes, I should have some time later in the week. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] |
#8
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Any way to improve a floodlight's PIR range?
In message , Andrew Gabriel
writes In article , NT writes: On Nov 7, 11:42*am, (Andrew Gabriel) wrote: This sort of light combined with a PIR is a compromise, because the ideal light height is completely different from the ideal PIR height. If the PIR can be angled separately from the light, you could try angling the PIR up, but you will probably lose nearby coverage. Ideally, the PIR wants to be much lower than a 500W floodlamp, something like 8-10 feet for the PIR, 30 feet for the 500W floodlamp. 500W floodlamps are almost always incorrectly installed much too low down on homes, where what should have been used are several much lower power lights. If you use a floodlamp, it should be angled to prevent any light being emitted horizontally or upwards, i.e. always pointing down. Ideally, the mounting height should be about the same as the intended beam spread, but certainly no less than half this. Don't allow light to spill on to someone else's land or property without their permission. Don't allow light to spill onto a public path/roadway without ensuring there's no glare, i.e. the light bulb itself can't be seen by users of the path/road, and the lighting level isn't too high, either of which could temporarily destroy the road users' night vision. +1 That sounds like a good start for an outdor lighting article on the wiki. Fancy putting it on there? Yes, I should have some time later in the week. Low mounting has already been mentioned but a serious fault of the standard *close coupled* low wattage fitting is that the PIR unit swivel adjustment is quite limited. If the lamp is angled down to restrict the light spread, the PIR cannot be raised enough to give the expected range. 150 Watts is adequate to illuminate a 20m x 20m yard. Installers should consider boiler flues and wind blown vegetation as well as returning after dark to check the operation. regards -- Tim Lamb |
#9
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Any way to improve a floodlight's PIR range?
On Nov 7, 10:02*pm, Tim Lamb wrote:
In message , Andrew Gabriel writes In article , * * * NT writes: On Nov 7, 11:42*am, (Andrew Gabriel) wrote: This sort of light combined with a PIR is a compromise, because the ideal light height is completely different from the ideal PIR height. If the PIR can be angled separately from the light, you could try angling the PIR up, but you will probably lose nearby coverage. Ideally, the PIR wants to be much lower than a 500W floodlamp, something like 8-10 feet for the PIR, 30 feet for the 500W floodlamp. 500W floodlamps are almost always incorrectly installed much too low down on homes, where what should have been used are several much lower power lights. If you use a floodlamp, it should be angled to prevent any light being emitted horizontally or upwards, i.e. always pointing down. Ideally, the mounting height should be about the same as the intended beam spread, but certainly no less than half this. Don't allow light to spill on to someone else's land or property without their permission. Don't allow light to spill onto a public path/roadway without ensuring there's no glare, i.e. the light bulb itself can't be seen by users of the path/road, and the lighting level isn't too high, either of which could temporarily destroy the road users' night vision. +1 That sounds like a good start for an outdor lighting article on the wiki. Fancy putting it on there? Yes, I should have some time later in the week. Low mounting has already been mentioned but a serious fault of the standard *close coupled* low wattage fitting is that the PIR unit swivel adjustment is quite limited. If the lamp is angled down to restrict the light spread, the PIR cannot be raised enough to give the expected range. 150 Watts is adequate to illuminate a 20m x 20m yard. Installers should consider boiler flues and wind blown vegetation as well as returning after dark to check the operation. regards -- Tim Lamb Not sure if will work with PIRs, but I needed to change the direction and range of some thermopiles. I used aluminium foil as a reflector. Lyndsay http://www.sensecam.co.uk |
#10
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Any way to improve a floodlight's PIR range?
On Nov 8, 6:33*am, Lyndsay Williams wrote:
On Nov 7, 10:02*pm, Tim Lamb wrote: In message , Andrew Gabriel writes In article , * * * NT writes: On Nov 7, 11:42*am, (Andrew Gabriel) wrote: This sort of light combined with a PIR is a compromise, because the ideal light height is completely different from the ideal PIR height. |
#11
Posted to uk.d-i-y
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Any way to improve a floodlight's PIR range?
"D. Dalton" wrote in message ... I've fixed a 500w floodlight to the wall of my house. Unfortunately the effective range of the PIR movement sensor is not quite enough. Its effective range seems to be about 7 metres and I need it to be at least 10M. Is there anyway I can increase the range of the sensor? Put the PIR assembly near the target area, use the PIR to control a relay which will allow the actual lamps to be as far away as you like. |
#12
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Any way to improve a floodlight's PIR range?
"Ian" wrote in
om: "D. Dalton" wrote in message ... I've fixed a 500w floodlight to the wall of my house. Unfortunately the effective range of the PIR movement sensor is not quite enough. Its effective range seems to be about 7 metres and I need it to be at least 10M. Is there anyway I can increase the range of the sensor? Put the PIR assembly near the target area, use the PIR to control a relay which will allow the actual lamps to be as far away as you like. I think that might be my best option - thanks... (if I can figure out how to do it). What would probably be most suitable would be a battery-powered PIR sensor to that sends a wireless signal to the floodlight's switching device. That's because it's not very practical to have wires going to the PIR, if I place it close to the target area.I have not been able to locate such an item, but I'll keep looking... DD |
#13
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Any way to improve a floodlight's PIR range?
On Nov 10, 10:48*pm, "D. Dalton" wrote:
"Ian" wrote innews:KY2dnRzbRY013iHTnZ2dnUVZ8kudnZ2d@brightview .com: "D. Dalton" wrote in message ... I've fixed a 500w floodlight to the wall of my house. Unfortunately the effective range of the PIR movement sensor is not quite enough. Its effective range seems to be about 7 metres and I need it to be at least 10M. Is there anyway I can increase the range of the sensor? Put the PIR assembly near the target area, use the PIR to control a relay which will allow the actual lamps to be as far away as you like. I think that might be my best option - thanks... (if I can figure out how to do it). What would probably be most suitable would be a battery-powered PIR sensor to that sends a wireless signal to the floodlight's switching device. That's because it's not very practical to have wires going to the PIR, if I place it close to the target area.I have not been able to locate such an item, but I'll keep looking... DD couple of other options mentioned http://wiki.diyfaq.org.uk/index.php?...tdoor_lighting NT |
#14
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Any way to improve a floodlight's PIR range?
On 10/11/2011 22:48, D. Dalton wrote:
wrote in om: "D. wrote in message ... I've fixed a 500w floodlight to the wall of my house. Unfortunately the effective range of the PIR movement sensor is not quite enough. Its effective range seems to be about 7 metres and I need it to be at least 10M. Is there anyway I can increase the range of the sensor? Put the PIR assembly near the target area, use the PIR to control a relay which will allow the actual lamps to be as far away as you like. I think that might be my best option - thanks... (if I can figure out how to do it). What would probably be most suitable would be a battery-powered Standalone PIRs already include the relay... (I posted a diagram of how its wired a few posts back). PIR sensor to that sends a wireless signal to the floodlight's switching device. That's because it's not very practical to have wires going to the PIR, if I place it close to the target area.I have not been able to locate such an item, but I'll keep looking... Like this: http://www.tlc-direct.co.uk/Main_Ind...Pir/index.html or http://www.tlc-direct.co.uk/Main_Ind...ems/index.html -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
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