Measures Leaf Temperatures, Giving you Information on VPD Levels
The Dimlux Plant Camera is a revolutionary piece of equipment that takes accurate readings of leaf temperatures at the canopy level, in order to feed the information back to the Dimlux Maxi Controller. This information is then used in conjunction with room temperature and humidity readings to calculate and display the vapour pressure deficit (VPD) level - a measurement that describes the surrounding atmosphere’s potential to draw water away from plants through transpiration. The higher the VPD reading, the greater the pressure deficit between your plants and the air around them. Large pressure deficits mean that your plants will lose more water through their stomata. Small pressure deficits mean that plants hold onto their water more easily (great for cuttings, etc). The Maxi Controller is capable of regulating the output of your lighting according to the difference in temperature between the plants and the surrounding atmosphere, ensuring that VPD levels always sit within the correct range.
How the Plant Camera Works:
The Plant Temperature Camera is used in conjunction with the Dimlux Maxi Controller, pointing towards the canopy and taking leaf temperature readings. The Maxi Controller then gathers this information and uses it in conjunction with readings from separate temperature and humidity probes to calculate and display VPD levels. VPD refers to something called vapour pressure deficit. It can be thought of in simple terms as the potential for the surrounding air to draw moisture away from the plant. It provides the grower with the most accurate information on how much plants will have to transpire to in order to reach an equilibrium with the surrounding atmosphere.
The Maxi Controller displays plant temperature readings in two ways: 'PT' denotes the actual plant temperature, while ‘AT’ represents the difference between the temperature of the plants and the rest of the room. The difference (AT) should be kept as low as possible – plant temperature (PT) should always be within 1 or 2 degrees of the surrounding environment and, ideally, at the same level. The Maxi Controller will do this automatically, ensuring that lighting output levels are reduced whenever the AT gets too high.
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