SG Connect - Daylight regulation
Purpose
In the presence of daylight, the output from a luminaire is regulated to achieve a target light level on the working plane to save energy.
The light output from the luminaire will still be bound by Eco-on level on the upper side and Back Ground level on the lower side
How to
Enter the group and configuration screen for a device, zone, or group.
Choose “Edit configuration” and change the light level parameters.
Activate “Daylight based control” and choose “Calibrate daylight sensor”.
Choose “Save and proceed” to start the calibration.
Finalize process by selecting “Finish”.
Step-by-step guide
Remarks
Any time after configurating the Eco-on level, a calibration routine shall be initiated. When the calibration routine is run, the light level adjusts to the full light output (given by the operating current of the luminaire) times the percentage value set for the Eco-on level. By adjusting the operating current of the luminaire and the Eco-on level in the app, a user has full control on the light level realized on the desk.
If no calibration is performed, the light output adjusts approximately to 500 lux times the value set for the Eco-on level. If the Eco-on level is set to 80% for example, the light output from the luminaire adjusts to 400 lux on desk level.
The calibration for daylight dependent light regulation needs to be done in the absence of daylight, i.e., at night or with blinds closed.
When the calibration is run, the light output of the luminaires first goes to a low level and to a high level before it regulates to the set light level. This procedure takes approximately 1 minute for lights with integrated sensor and 5 minutes for external (ZGP) sensors.
The calibration must not be interrupted. Termination of a running calibration can compromise a following calibration process. In case the process has been accidentally terminated, please wait 7 minutes before restarting the calibration.
The lux levels are an estimation for a typical office configuration; the precise level depends on the amount of light reflecting surfaces in the field of view of the sensor. With different reflecting surfaces below the luminaires, e.g., light desks or dark carpets, the light output of the luminaires can be different. If the light level is not as wanted, please do the calibration, and adjust the light level via the Eco-on level.
To determine the optimum Eco-on level it is recommended to turn off daylight regulation temporary before calibration, and to measure illuminance as a function of Eco-on level.
Daylight areas must be created before switching on Daylight based control.