Hired-Hand Farm Hand Series: Vent Master 24 - Manual (Page 10)

Part No. 4801-5124 rev 10-03 Farm Hand Vent Master 24 8
When you have finished setting your stage On/OffPoints press the individual stage button
once more, and the system will not flash any stage displays, and the main display will read a
steady value. Your Vent Master 24 is now operating normally again.
9. Program Mode
Settings that are usually set up once per growout, or maybe even just for summer or winter are referred
to as program parameters and are accessed by taking the controller to program mode. Some examples
of these settings are Vent Machine Time Delay, Runtime, Stages on Timers, and Sensor Calibration.
To get to program mode, press and hold the “Mode” button for five seconds. When the controller has
entered program mode, the main display will flash between “PSd” and the value of this parameter.
The “PSd” is known as a parameter number. All the program items for the controller have a parameter
number assigned to them. The numbers are listed in the section called “Program Reference” in the
back of this manual with a short description of each parameter. When in program mode, you change
the current parameter by using the + and - buttons as needed. When you have finished with the current
setting, press the “Mode” button to move to the next parameter.
9.1 Sensors For Display (PSd)
The user is given the choice as to what to display for Room Temp. The choice is made in
Program Mode under the parameter PSd. The following is a list of choices:
PSd = Room Temperature Display
100 = Sensor 1
020 = Sensor 2
120 = Average of Sensors 1 & 2
003 = Sensor 3
103 = Average of Sensors 1 & 3
023 = Average of Sensors 2 & 3
123 = Average of Sensors 1, 2, & 3
9.2 Stage Parameters
The following parameters are used to program each stage on the Farm Hand Vent Master 24.
Through these parameters, the user has complete control over the operation of each stage.
The following sections explain each parameter in detail.
P1 = Stage Sensors
P2 = Stage Mode
P3 = Stage Timer Settings
9.2.1 Stage Sensors (P1)
A stage can be programmed to run off of any sensor or combination of sensors. The
following is the list of P1 options:
P1 = Stage Sensors
100 = Sensor 1
020 = Sensor 2
120 = Average of Sensors 1 & 2
003 = Sensor 3
103 = Average of Sensors 1 & 3
023 = Average of Sensors 2 & 3
123 = Average of Sensors 1, 2, & 3
While in the Programming Mode and Parameter P1 is shown in the display, Stages 1/12 will
be displayed first. Note the red LED next the Stages 1-12 is lighted. After stetting P1 for
Stages 1/12, press the Mode button to set stages 13/24.