Hired-Hand Emergency Back-Up and Alarms: Alert Alarm - Manual (Page 7)

Part No. 4801- 5085 Rev 5-01 Farm Hand Alert Alarm 5
5.1.4 Power Out
The Power Out alarm indicates that there has been no electricity present on the alarm power feed
for at least one minute. If it is found that there is power at the electrical outlet, the 2 Amp fuse
located on the Alert Alarm circuit board (F1) could be blown. If this is the case, remove power for
approximately 30 seconds, then reapply power. This should reset the fuse. The Alert Alarm will
wait 60 seconds after a Power Out indication before triggering an alarm.
5.2 Alarm Outputs
The Alert alarm has two alarm outputs. These can be used individually or simultaneously. The
alarm outputs are:
5.2.1 Siren
The siren hookup to the Alert Alarm will deliver a 12 volt DC signal with a current up to 1.5 amps.
Many operators want to mount the siren a long distance from the controller. Sometimes, this is
desirable in order to locate the siren closer to their dwelling, sometimes to get it away from their
animals. The use of a small gauge wire to connect the Alert Alarm to the siren could cause a great
deal of voltage drop. This voltage drop, in turn, can cause the siren to become inoperative. If the
operator wants to mount the siren more than 50 feet from the controller, a relay with a 12VDC
rated coil should be used to switch current to the siren. When a relay is added, the operator must
provide a separate battery and charger for the siren circuit.
5.2.2 Dry Contact (N.O. and N.C. Contacts)
The Alert Alarm provides a set of dry contacts that can be used to trigger a modem, auto-dialer or
other auxiliary equipment. Both normally open (N.O.) and normally closed (N.C.) contacts are
available. See Section 13.5 for a wiring diagram.
6. Day to Day Operating Instructions
This section of the manual will give you what you need to know about the day to day operation of the Alert
Alarm controller.
6.1 Checking Readings and Adjusting Setpoints
When a Control Button has not been pressed within one minute, the Display Indicator will show
“Actual Reading”. This indicates that the Channel Displays are showing the current temperature
and the current water quantity readings. To see the High Limit setpoints, press the button labeled
“Mode”. This button is located in the right center of the controller faceplate. When you press the
“Mode” button, watch the green LED’s beside the Display Indicator. When the Display indicator
shows “High Limit” you are viewing the high limit setpoints in the Channel Displays. In addition,
you can view the “Low Limit setpoint” and select “Reset”. These four readings are described as
follows:
Actual Reading
For Sensor 1,2 and 3 and for the Water Quantity, this is the current reading from the sensor. For
Water Total, this is the actual water quantity total as read from the water sensor and calculated by
the Alert Alarm.
High Limit Setpoints
The High Limit setpoint for Sensor 1,2 and 3 is the temperature used to control the high-side at
which the alarm will sound. For example, if the High Limit setpoint for Sensor 1, 2 or 3 is set to
90 degrees and the temperature becomes greater than 90 degrees, the Alarm will sound and the red
LED at the lower right of the Channel Indicator will light. Each of the three temperature sensors in
NOTE: Only the Sensor 1,2 and 3 and Water Quantity have high limit setpoints.