Phason Supra-RS, Owner'S Manual

Page: 112 / 152

Appendix A: Glossary
112 Phason
curtain set
point
Curtain set point
is the target temperature for the curtains. When the temperature
is between the
set point
and
idle band
limits, the curtains hold their position.
Set point is one of six curtain settings. For more information, read
Programming
curtain control relays
on page 81.
different
method (DIF)
DIF is a means of maintaining different day/night temperatures in greenhouses
that helps control plant height and growth.
DIF is calculated by subtracting the nighttime temperature from the daytime
temperature. Higher day temperatures give a positive DIF and promote growth.
Lower daytime temperatures give a negative DIF and slow down growth.
Negative DIF helps control plant height.
For more information, read
Using setback for day/night temperature control in
greenhouses
on page 71.
differential The differential temperature is a setting for variable stages.
For variable cooling stages, when the temperature is above the differential
temperature setting, the fan runs at full speed.
For variable heating stages, when the temperature is below the differential
temperature setting, the heater is at full output.
For more information, read
Programming variable stages
on page 75.
duty cycle See time-based duty cycle or temperature-based duty cycle
expansion kit See variable DC
firmware Firmware is the internal program instructions of the Supra. It comprises all the
menus, displays, and more.
You can update the firmware version of the Supra to the latest version using an
Intaglio. For more information, read
Available accessories
on page 11.
group set point
The
group set point
is the desired temperature for the zone.
For more information, read
Setting the group set point
on page 66.
growth curve
A growth curve is an extension of the group set point concept. The growth curve
automatically adjusts the temperature set points over time to control the
temperature in a room or zone. It is called a “growth” curve because it adjusts
the set points as the animals “grow”.
For more information, read
Programming growth curves
on page 67.
humidity band The humidity band is the range in which the Supra attempts to compensate for
humidity. The band consists of a lower and upper limit.
For more information, read
Programming the humidity
on page 73.