Metrics

Metrics are broken down into three topics: Air, Light, and Water. Each metric contains a min and max acceptable value. The smaller the difference between the min and max of a metric, the more strictly it should be regulated. The absence of a metric should indicate that the metric should not be tracked. If a certain metric is supposed to not appear, it should be explicitly defined with a min and max of zero.

Air

Name Unit
temperature
relative-humidity %
co mg/m3 (a ppm converter.)

Water

Name Unit
temperature
electro-conductivity mS/cm
dissolved-oxygen mg/L (a ppm converter.)
oxidizing-reduction-potential mV
hardness mg/L
ph pH
vpd kPa
bicarbonate mg/L
nitrogen mg/L
potassium mg/L
calcium mg/L
magnesium mg/L
sulfer mg/L
iron mg/L
copper mg/L
zinc mg/L
manganese mg/L
sodium mg/L
boron mg/L
chlorine mg/L
silicon mg/L
iron-chelates mg/L
sodium-chloride mg/L

Light

Light metrics are separated into one or more bands. A band is defined as an upper and lower wavelength (nanometers) within the electromagnetic spectrum. Within a band a light intensity is defined with the usual min and max values. Light intensity is represented in PPFD (µmol/m2/s)

<?xml version="1.0" encoding="UTF-8"?>

<recipe>

  <default>
    <light>
      <!--red-->
      <band min="590" max="750">
        <ppfd min="650" max="650" />
      </band>
    </light> 
  </default>
    
</recipe>