Hired-Hand Emergency Back-Up and Alarms: Alert Alarm - Manual (Page 11)

Part No. 4801- 5085 Rev 5-01 Farm Hand Alert Alarm 9
8.1 General Parameters
General parameters are associated with the operation and control of the Alert Alarm.
P1 – Individual Sensor Limits
This general parameter determines how to program the Sensor High and Low temperature
limits. As indicated earlier, these limits can be set individually to different values. However,
if it is desired to set Sensor 1, Sensor 2, and Sensor 3 to the same values, this parameter
changes the programming procedure to allow limits to be entered only once but used for all
sensors. If P1 is set to “YES”, the high and low sensor limits are entered individually. If P1 is
“NO” limits are entered once for all sensors. To change the value of P1, Press the Plus (+)
button for “YES” and the Minus (-) button for “NO”.
8.2 PC Compatible Network Parameters
These parameters are used with Hired-Hand’s Farm Manager Software. The controller has three
parameters which are used to function with the Hired-Hand PC compatible inter-controller network
(HH.Net). These parameters:
P40 -- HHNet Address
HH.Net permits up to 32 controllers to be addressed on a single communications port of a
personal computer (PC). In order for the computer to recognize the communications from the
controllers, each controller must have a unique network address. For example, if you have a
Stage Master, an Alert Alarm, and two Power Vents on your network, you would need to set
the Stage Master to address 1, the Alert Alarm to address 2, the first Power Vent to address 3,
and the second Power Vent to address 4. Valid settings are 1 - 32. (You do not have to set the
address of the controllers in any particular order.)
P41 -- Version Number
This is not settable by the user. It is the version of the controller software.
P42 -- Controller Type
This is not settable by the user. It is a unique number that allows the network software (Farm
Manager) to recognize the type of controller.
8.3 Sensor Calibration Parameters
The Alert Alarm has two temperature sensors that can be calibrated. The parameter(s) for
calibration are PSx where x is the sensor number. The sensor temperature reading is alternately
displayed along with the parameter number.
You should never attempt to calibrate a sensor more than 8 degrees. If you have a setting that far
out of range, it indicates that there is a problem other than sensor calibration.
PS1 - Calibrate Sensor 1
This reading can be changed by pressing the Plus (+) or Minus (-) button until the desired
reading is displayed.
PS2 - Calibrate Sensor 2
This reading can be changed by pressing the Plus (+) or Minus (-) button until the desired
reading is displayed.
PS3 - Calibrate Sensor 3
This reading can be changed by pressing the Plus (+) or Minus (-) button until the desired
reading is displayed.
The temperature sensors can be set to display the temperature in English units (Fahrenheit) or in
Metric units (Celsius). The choice is controlled by jumper J2. With the jumper installed the Alert
Alarm will use Fahrenheit. With the jumper removed the Alert Alarm will use Celsius. See
Section 13.3 for the location of this jumper.