
Glossary of Terms
Glossary of Terms
Chore-Tronics® 3 Control
12
MT2398C
Analog Input
Analog Inputs can consist of the following:
Temperature sensors
Static Pressure sensor (4-20 mA)
Relative Humidity Sensor (0-10 volts)
Potentiometer (Natural Ventilation)
Anticipation
When the control is turning on the fans assigned to the Minimum Ventilation Timer, the control will open
the inlets to the correct position for static pressure control before the fans are turned on. If calculated
anticipation is used (default), the control teaches itself how much adjustment was required during the
previous on-off cycle, and uses that amount of "anticipation" for the next cycle. If the optional fixed
anticipation is used, the control will NOT teach itself what the correct anticipation should be. It uses the
amount of "anticipation" that is entered in the Static Pressure screen (Screen 11). Anticipation will occur
when the fans assigned to the Minimum Ventilation Timer turn on due to the timer reaches an ON cycle
or the sensor(s) assigned to the fans reach the fans' ON temperature.
Back Up Relay Output
The backup up relay output is a relay that will be energized as soon as the backup output is assigned to a
relay. This relay will stay energized as long as the control is communicating with the manual switch board
where the output is assigned. The 24 Vdc signal that comes from the control to the back up box should be
routed through this relay. If communication is lost between the main box and the manual switch board,
the relay will drop out allowing the first fan stage in the back up box to turn on. See the Wiring Diagrams
section of this manual for more wiring information.
Bend Point (BP)
The Bend Points (BPs) are simply the points on the curve that define the curve. For the Set Temperature
and Minimum Ventilation Timer curves, the curve values are gradually changed between bend points. The
bend point values are the exact values at midnight beginning the day # of each bend point. The curve takes
over when you turn the curve "on" and the day number is equal to or greater than the day number assigned
to BP #1.
Cool Pad Output
The COOL PAD Output is a special function for controlling evaporative cooling that allows you to
modulate the addition of water to the cooling pad in such a way that the usual large temperature swings
associated with a cooling pad are avoided.
Curve
A "curve" is a listing of up to 10 points in time (bend points) that defines how you
want a parameter to automatically vary as the animals age.
Curve Value
The Control will list what the current value(s) the curve would be, if the current day
number is greater than the day # of bend point #1, and the curve is "on", and there is
no "offset" to the curve.
Day Number
The intention is that the day # is the age of the animals whose environment is being
controlled. Day # 0 does not exist. Negative days (down to - 7) are allowed.
Changing the day # in any screen that shows the day number, will change the day #
in all the other screens that show the day #.
Содержание Chore-Tronics 3 Control
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