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Mechanical Installation
10
2.6 Optional Temperature Sensor Mounting
The optional temperature sensor is mounted separately and requires a location away from the influence
of chimneys, air conditioners, vents, tar roofs, concrete and parking lots which can cause abnormal
temperature fluctuations. Usually a separation of at least 20 to 30 feet horizontally and eight feet
vertically is required to achieve this. Locations where air movement is restricted are also
unsatisfactory.
A first-choice temperature sensor location is a north eave or northern exposure away from direct sun
light and above grass. This location gives extra stability and accuracy to the sensor because of the
added shading usually obtained on a northern exposure. There should be at least one foot between the
bottom of the eave and the top of the temperature sensor housing for accurate readings.
Other choices are mounting the temperature sensor on the display structure or the display cabinet.
Due to the nature of the signal cable used to send the temperature information, the maximum distance
between the temperature sensor and the display is 500 feet (152.4 meters).
Refer to
Section 3.9 for wiring instructions.
Figure 7: Temperature Sensor Mounting