Phason Supra Touch Series, Руководство пользователя, Страница: 37 / 98

Phason 37 / 98 34740001
To program the master set point
1. Press the
Menu
and then
Settings
.
2. Press
Master Set Point
.
3. If you do not want the individual (equipment) set points to change when you adjust the master set point,
select
Maintain other set points
.
4. Below Zone , press the
Left
or
Right
arrows to choose the zone.
5. Below Set Point , press the
Up
or
Down
arrows to set the master set point for the zone.
6. Press
Save
when you are finished.
You can also get the master set point from the status screen.
Programming growth curves
A growth curve is an extension of the master set point concept. The growth curve automatically adjusts the
temperature set points over time to control the temperature. For example, in hog production, newborn
piglets require a high temperature for comfort and health. As they grow older, they need a steadily lower
temperature. Using the growth curve, Supra Touch automatically adjusts the temperatures.
You can have up to seven steps in a growth curve. Each step has a start date and temperature. Supra Touch
automatically calculates the set points for the days between the steps and adjusts the set points at midnight
each day. Individual set points for the variable and fixed stages are adjusted relative to the growth curve
temperature. Growth curves are an extremely powerful feature because they help you put fan and heating
strategies in place once, and then adjust them automatically over time.
For example, in the following table, the duration of step 2 is 10 days. The difference between the starting set
point (86.5°F) and the starting set point for the next step (85°F) is 1.5°F. Supra Touch divides the
temperature difference by the duration, 1.5 ÷ 10 = 0.15, and then automatically adjusts the set point by
0.15°F each day for 10 days.
Step Temperature (°F) Duration (days)
1
2
3
4
5
6
7 88.0
86.5
85.0
83.5
81.0
78.0
74.0 5
10
10
10
5
5
10