Because your plants use CO2 for the process of photosynthesis, it is not necessary to dose them during night time hours when the lights are turned off. Connect the UNIS Controller to a suitable timer and turn it off during these periods or, if you have a spare socket on the contactor that you use to switch lights on and off safely, use that. Just make sure that you are below the contactor’s power threshold.
How much CO2 per dose? The Gas regulator has a preset Gas delivery rate of 17ltrs per minute. Setting number 6 on the Unis doses for 6 seconds, that’s 1 tenth of a minute. So the amount of CO2 released per dose is 1.7ltrs of CO2 Gas into your grow tent. How often does the UNIS dose?The timer in the Unis is preset to make a dose every 240 seconds (4 minutes)You can further regulate this by plugging the Unis into a 24hour timer so that it is only powered ON in the DAY cycle for example. When should the UNIS dose? The Unis is designed to ideally dose CO2 into a grow tent after an air extraction. The new air introduced after an extraction event will fill the room with clean fresh air that should have a background level of around 400ppm. What will the CO2 PPM level in the grow tent be using a UNIS? Using our example grow tent: Dosing CO2 for 6 seconds in a grow tent of around 15m3 volume should raise the CO2 ppm up from a background level of apx. 400ppm up to around 1600ppm and so give your plants a excellent boost of Carbon Dioxide.
The regulator from this kit can also be used in conjunction with the Ecotechnics Evolution Controller and the Ecotechnics Analyser.



