iGrow1800 - Programming Lights - Supplemental Mode
The iGrow 1800™ can be used to control lights (typically HID) in the greenhouse, based on the amount sunlight being dispersed daily.
To effectively use the Supplemental Light Program you must have a light sensor wired and mapped to the controller
Here is a video:
To program simply hit Enter/Menu -> Program Equipment -> Hit Enter/Menu to highlight Output -> NEXT to scroll over to Equipment type field -> hit + till you display LIGHT then hit Back. Hit NEXT to highlight the MODE -> hit + till you highlight Supplemental then hit next.
Supplemental mode is active between the Start and End times. You have the option of controlling the Start and End times based on a fixed time window or a relative time window. The latter is relative to the sunrise and sunset times. When the cursor is over the at position and you press the + or – keys, you will cycle through the three options: SRise, SnSet, and at.
When you set the parameters up for the first time, the Start and End times will be adjusted every day thereafter, at 2 AM, to track the shortening and lengthening of the days.
Note: When you select SRise or SnSet, It does not mean that the Start is exactly at the sunrise time, or the End at exactly at the sunset times. You can select any time window. What it means is that the daily adjustment is per the change in the sunrise and sunset time amounts. When the days get longer, the sunrise rise time will be earlier each day and the sunset time will be later.
If you do not have a light sensor, then the output functions as a time clock with the optional astronomical adjustment.
If you do have a light sensor, then you can program the following screen:
First you will program the light level below which the lights will be Turned ON. Then you will program the level at which they will be Turned OFF.
The final parameter is the Time Delay. If the sun were to appear momentarily, you probably don’t want the lights go off and then on again. To avoid this potential cycling problem, you can set a Time Delay in minutes where the light level must be above the turn off threshold continuously before the lights will be turned OFF.
Here is a LinkConn1800 View of your Supplemental Light Programming Screen which a provides a more simpler control view.
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