PIR

Two questions

Have a clipsal PIR in a hallway which has no natural light, during the day ( sunrise to sunset) would like to trigger the spots and during the night (sunset to sunrise) the night lights.
How do I do this?

Have clipsal PIR in the bathroom as you enter it triggers a lighting circuit,( say LED) however halfway through showering the lights go off as it not seeing any movement.
You then need to wave your hands round (very annoying)
How do I come over this please.??

 

schedule them for each half of the day. pir triggers different scenes for day lights or night lights depending on time of day.

You may need to use logic to do this, on first entry set the light on, and set a variable to say 1, then after a time on period say 10min check the variable if its 1 then keep the light on and set the variable to 2, if there is still no movement after that turn off the light, if there is then reset the variable to 1.
It would mean that your lights are on for much longer than you need, and you would need to set an appropriate time for the on time, this could be different for each variable.

regards
Trevor

 

Thank you for this
Answer 1 :
As there is no much natural daylight ,would the PIR know it's daytime ?

 

You use the sunrise/sunset feature, in scenes/logic that tells it

 

In your bathroom, do you have anything else controlled by cbus, eg exhaust fan?

You could try setting the exhaust fan GA as the PIR disable GA:
Walk into the room, lights go on
Turn on the exhaust fan GA, PIR disabled, lights & fan stay on indefinitely.
Turn off the exhaust fan GA, PIR enabled and lights turn off after you exit the room.

Or if you can put a virtual GA on a button as a timer and set this same virtual GA as the PIR disable GA:
Walk into room, lights go on
Turn on the virtual GA timer, PIR disabled, lights stay on.
Timer expires during shower, PIR enabled, but will not detect any movement and affect the lights until after you exit the shower.

 

Only the lights are controlled by cbus, have a central ventillation system.

 

If you want the sensor to react based on real-time (i.e actual night or day) you will need a logic unit with a clock in it like a touch screen, wiser or shac. If you want it just controlled by light level, there is an adjustment on the sensor that sets the dark level. Even though the hall has no natural light I assume you can see in it during the day but not at night so it's just a case of playing around with the sensor pot. In the sensor you just set the two different lights for movement by day and movement by night. The only issue is that at night if there is a nearby light turned on that leaks into the hall, it could put the sensor in day mode so the spots would be triggered.

This is kind of how sensors work They just detect movement then blindly turn the light on for a fixed time unless they get another trigger. You either need a manual override or some way of knowing you are in the shower. The simple solution is just to have an override switch that keeps the light on until you manually turn it off (you could put a long timer on that switch). You can do this via the logic section of the output unit. THis is described here:
https://www.cbusforums.com/threads/pir-help-required.10508/#post-56961