Hired-Hand Emergency Back-Up and Alarms: Secondary Sensing System Expansion - Manual (Page 26)

Manual No. 4801-3001 Rev 7-08 Secondary Sensing System Expansion 26 of 46
11.3 Sensor Recommendations
It is important to note the Hired Hand temperature sensors are fabricated using thermistors and are not
interchangeable with sensors commonly used on controllers from other manufacturers. The three temperature
sensors may be installed in a variety of ways. It is recommended that a sensor be located high enough from
the floor so that livestock or poultry can not peck at it. It is also essential that the sensor not be hung in front
of heaters, fans or other devices that would cause false readings. If a sensor is to be run from one building to
another, it is recommended that the connection be made with underground-rated wire buried between the two
structures. This recommendation is to reduce the effects of lightning.
Once again, the temperature sensors should be dropped as low in the house as possible while still being out
of reach of the livestock or poultry. And, as discussed earlier, it is recommended that the operator press the
Test button for ten to fifteen seconds at least twice a week to verify the operation of the alarm as well as to
condition the livestock or poultry to the sound of the siren.
12. Maintenance
Check the calibration of your temperature sensors at least once per quarter. You will need to have two people, one
at the sensor with a trusted thermometer, and one at the controller to calibrate the sensor.
13. Wiring Diagrams, Schematics, etc.
The following diagrams the S 3 Expansion connections and how the S 3 Expansion is connected to external
equipment.