• Hpm Pe170 Manual
• Hpm Manual

Click to expand. It ain't my switch. It sits on the wall of the building and belongs to the Owners Corporation, problem being it is sited in direct sun and controls both external and internal (ie hallway) lighting. The south side hallway and stairwell age no direct sunlight and are in near darkness for up to an hour before the lights finally come on. I estimate that sensitivity to light needs to drop by a factor of 50 or more to correct this - so the hallway illumination will be about 50 lux instead of 1 lux when the switch operates. Semi opaque tape placed over the sensor helps, but needs to be replaced regularly due to the effects of sun and rain. 'Rheilly Phoull'.

Hpm Pe170 Manual

It ain't my switch. It sits on the wall of the building and belongs to the Owners Corporation, problem being it is sited in direct sun and controls both external and internal (ie hallway) lighting. The south side hallway and stairwell age no direct sunlight and are in near darkness for up to an hour before the lights finally come on.

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I estimate that sensitivity to light needs to drop by a factor of 50 or more to correct this - so the hallway illumination will be about 50 lux instead of 1 lux when the switch operates. Semi opaque tape placed over the sensor helps, but needs to be replaced regularly due to the effects of sun and rain. ::'Ross Herbert': 'Phil Allison':::::anyone know if the HPM PE170 light sensitive switch has an internal::adjustment?::::::::Seems there is no instruction sheet published by HPM on the net.::::: No Phil, it's a fixed setting.:::. That is what HPM's advertising suggests.:: If so, the unit is entirely unsuitable for the job it needs to do here.::::. Phil:: Even if you consider the Clipsal 56PEDD3 it is also a fixed setting.

ON = 20 lux, OFF= 50 lux.

For some years now my outdoor lights have been fully automated using an HPM PE170R light sensing switch. Unfortunately it recently failed so today I replaced it with the latest version PE170R2.

It's a lot easier to setup but I don't understand how it knows the time of day. Having it switch on at dusk is easy enough. That's what the light sensor does.

I have told it to turn off at 1am but how does it know when that is? The device came with no paperwork. I can find a data sheet online but that only tells me what it does.

Has anybody used one of these and know how to set the time? For some years now my outdoor lights have been fully automated using an HPM PE170R light sensing switch. Unfortunately it recently failed so today I replaced it with the latest version PE170R2. It's a lot easier to setup but I don't understand how it knows the time of day. Having it switch on at dusk is easy enough.

Hpm Manual

That's what the light sensor does. I have told it to turn off at 1am but how does it know when that is? The device came with no paperwork. I can find a data sheet online but that only tells me what it does. Has anybody used one of these and know how to set the time?

I haven't used that device but the confirms the following: Turn lights on at sunset and turns lights off at user-specified time. (Off-time is the actual time desired rather than a calculated sunset + delay time) As there are no visible programming inputs, apart from a rotary dial at the back of the unit, I'd have to guess there is an integral clock built into the non volatile memory inside that device. So all you need to do is set it to desired time (in increments of 30 minutes) using that rotary dial. Let us know if that work.

As there are no visible programming inputs, apart from a rotary dial at the back of the unit, I'd have to guess there is an integral clock built into the non volatile memory inside that device. So all you need to do is set it to desired time (in increments of 30 minutes) using that rotary dial. Let us know if that work. Last night the lights came on at 7:15pm, ie when it was dark enough. However, they turned off one hour later, not at 1am as I had set. I agree there has to be a clock inside.

There has to be a way to set the time or they would need a different model/SKU for every time zone. Also, no clock is accurate forever so there has to be a way to set it. I've sent HPM a message via their 'Contact' link on their website. I'll see what they come back with. If I don't get a reply I will call them. This device is a bit more intelligent than being able to stay on for x hours.

You tell it what time you want it to turn off and it does that every day regardless of the time it turns on due to varying sunset time. Interestingly, it turned on at around 7:15pm again tonight and as I write this at almost 10pm the lights are still on. As it is now Sunday night I don't think I will see if they turn off at 1am or not but at least it is doing better than last night. If it really can do what it says without being told the time of day I will be really impressed and even more inquisitive as to how it is done. I didn't stay up super late last night to see if it turned off at the correct time but I was sent the Instruction Sheet from HPM today. It doesn't mention anything about setting the time. It does say that it may not work properly the first night while it sorts itself out but should then be OK and that is what we have seen I think.

Next weekend I'll try to stay up and see what time it turns off. I suspect it may actually be 2am due to daylight saving but will revert to the set 1am in a couple of weeks. I can live with that. I'm still a little mystified as to how it actually works. I was thinking maybe it senses the Off Peak signal at 11pm and can set the time from that. I suppose it doesn't really matter as long as it works.