Daylight harvesting is a function used in light management systems that allows for automatic adjustments of lighting depending on the detected brightness of the room.
...
tap on white field under Find button - yellow icons should appear [1]
drag them to workspace
...
Stage 2
Tap Profiles [2]
Create a Daylight Sensor profile and rename as appropriate [3]
Tap LDR and choose Sensor Up or Sensor Down [4]
Select the Daylight Rate [5] and Save Changes [6]
| Info |
|---|
DaylightRate This sets the speed of reaction to changes in daylight. If set to 60 seconds then the sensor will take 10 samples of the daylight over a 60 second period, then slowly dim the lights to the calculated level over the next 60 seconds. |
...
Stage 3
Tap Luminaires [7] and Configure [8]
Apply the profile to the device - yellow circle should appear because of LDR [9]
...
| Info |
|---|
Big yellow dot on the luminaire icon it means that daylight harvesting is enabled. |
Stage 4
Tap Link and Daylight in the bottom left of the 'Luminaires' screen [10]
Link the Daylight Sensor to the lights to be controlled [11]
...
Stage 5
Replace simulated luminaries to real ones 5. Identifying luminaires (on-site)
Monitor the reading and adjust sensor if necessary [12]
| Info |
|---|
Sensor High If the sensor is aimed at the inside of a room with dark finishes, or at the floor of a warehouse, then if will be monitoring levels between 1 lux and 100 lux. If the daylight sensor is aimed at a skylight then it will be monitoring light levels between 10 lux and 10,000 lux. By default, daylight sensors are set to operate in the 1 lux to 100 lux range. If you find that the Sensor Reading is high when you would expect it to detect a reduction in Daylight level, then Tick the Sensor High reading in the profile. This will change the electronics within the device to work at the higher range. |
...
Stage 6
Go to Configure [13]
Set the Target Level(s) in the Sensor [14]
Once this step is complete the daylight sensor is commissioned and Stage 7 is optional
...
In the table below you will find the suggested values you can enter. Test them and adjust if neccessary.
Setting | Typical Value (Sensor in Daylight) | Typical Value (Sensor Shielded from Daylight) |
Lamps Off Above | 700 | 100 |
Lamps Min Above | 600 | 90 |
Lamps Max Below | 200 | 50 |
Stage 7
You may want different luminaires to respond differently to the same daylight sensor. For instance while the sensor may be instructing all of the linked lights to switch off, luminaires further away from the windows or not benefiting from an overhead skylight should not switch off but dim to a minimum level
...
Tap on a specific luminaire(s) in Configure [15]
Tap Min Daylight Level [16]
Modify the behaviour of different target luminaries by setting their Min Daylight Level
...