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Entry Date
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Nick Name
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Location
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Wednesday, May 01, 2019
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Matt D.
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Connecticut
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Entry 59 of 210 |
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Tank Regulator
The tank regulator not only provides a reading of the pressure in the bottle but it also allows for the control of the flow of carbon dioxide. In this image it is on and you want to look at the small green ball that is located toward the bottom of the column. Since the cold frame is a small and well sealed volume of space, after running the numbers, this has been dialed in to produce a flow rate of 2 SCFH (Standard Cubic Feet per Hour).
The goal is to set the flow rate to allow for the “fuzzy logic” processor to be effective. If the flow rate is too high, this will make it harder for the controller to maintain the predetermined carbon dioxide level. Based on observations the numbers check out and the level of carbon dioxide in the cold frame has been very consistent with my goal of 900ppm.
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