caron 7310-22, Operation Manual

Page: 55 / 131

7310 Series Operations Manual REV E 11-19-19 Page 55 of 131
Condition: Low Light Ratio
- If the Light Ratios are set at 5% white,5% blue,5% red 100% far red, it would
be expected that a Light Intensity Setpoint of 600 umoles/m2/s would not be
attainable with light from predominantly far-red lighting.
- If the Light Ratios are set at: 100% white,1% blue,100% red 100% far red, it
would be expected that blue’s setting of 1% would encounter the minimum
dimming level situation.
*Note: Lights may dim as low as 10% of their maximum value but not turn off completely.
Model 7315 will dim as low as 15%.
Some Light Ratios that are set too low and fall below the minimum output. When this
occurs An alarm will appear stating that Light Intensity Low.
Light Ratios can also be adjusted too high and can cause an alarm status.
The Light Intensity Setpoint value can be set to a high value and if the Light Ratio values
are too low, the light bank will never reach the specified Light Intensity Setpoint.
If the Light Intensity Setpoint is set at a lower value, and the Light Ratio values are set at
high percentage output, An alarm could occur indicating the unit cannot reach the lower
Light Intensity Setpoint because the Light Ratio values are too high.