23
SuperGuard and Piguard Plus
|
1.09
5.2.3 By Weight
The By Weight option enables controlling the minimum air flow depending on the number of pigs, their
weight and the current outside temperature. When using the Weight option, SuperGuard takes several
parameters and calculates the air speed, level of ventilation and cycle time needed to supply the
required volume. As opposed to the other ventilation methods, the Weight option is dynamic, with the
ventilation changing according to the current parameters (quantity of air required, weight of animals and
number of pigs, outside air temperature). In addition, Ventilation by Weight sends out an alarm if the
current ventilation is below the minimum required level.
NOTE:
This option is available in Version 1.09 and higher.
To set up the Weight Option:
1. In the
Install > Fan Air Capacity
menu, define the air capacity / hour (page 51).
2. In the
Control > Min. Max Level
menu, select
By
Weight
.
3. Set the parameters as required.
o
Day
: Set growth day
o
Min Level
: Set the minimum level of ventilation (refer to Vent Levels, page 30)
default: 1; range 1 - 30
o
Air Per Kg/Lb
: Volume of air per kilogram/pound per hour per pig.
o
Cold: Volume of air supplied when the outside temperature goes down to the
Cold Temperature
parameter (see the following section).
default : 0.5; range 0.1 - 99.9
o
Warm: Volume of air supplied when the outside temperature reaches
Warm
Temp. – Diff Below Heat
(see the following section).
default : 0.5; range 0.1 - 99.9
NOTE:
As the level rises between days (for example between day 6 and day 10 in the screen above),
the air volume rises proportionally each day, once a day. For example, on Day 7, the Cold Air
per Kg/Lb rises to 0.65; on Day 8, 0.8 and so on.
o
Max Level
: Set the maximum level of ventilation (refer to Vent Levels, page 30).
o
Animal Weight Curve
: This curve enables defining the animal average weight per
day. The curve provides the day's current animal weight to be used when calculating
the total livestock weight:
Total Weight = (Average Animal Weight) x (Total Animals Count)
default
:
10.0; range 1.0 - 999
4. In the
Management > Animal Inventory
menu, type the number of pigs.
Ventilation by Weight is configured.
SOFT MIN/MAX LEVEL BY WEIGHT (OUT TEMP)
Day
Min
Level
Air Per Kg/Lb
Max Level
Animal
Weight
Cold
Warm
1
3
6
10
12
15
17
19
21
1
1
1
4
4
7
7
7
7
0.5
0.5
0.5
1.1
1.1
1.1
1.1
1.1
1.1
1.5
1.5
1.5
1.7
1.7
1.7
1.7
1.7
1.7
16
16
16
16
21
21
21
21
21
4.0
15.0
30.0
45.0
55.0
80.0
120
170
240
