Daktronics AF-3080-68-R,A - Manual (Page 20)

2.6 Optional Temperature Sensor Mounting
The temperature sensor mounts 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 20-30 feet horizontally
and 8 feet vertically is required to achieve this.
Locations where air movement is restricted are
also unsatisfactory. Refer to Drawing
A-79767.
The ideal sensor location is a north eaves or a
northern exposure, above grass and away from
direct sunlight. This location gives extra
stability and accuracy to the sensor because of
the added shading usually obtained on a
northern exposure. See Figure 9 on the right
for details.
The second choice for locating a temperature sensor is on the display itself, or
somewhere on the display structure. A light-colored display is preferred in this
application. Location of the sensor should be above, below, or on a northern edge of
the display to keep the sensor shaded. If mounting above the display, a minimum
height of 6 feet is required. If mounting below the display, a minimum of 8 feet
above ground and a minimum of 1 foot between the sensor and the display are
required, as seen in Figure 10 below.
Greater accuracy is obtained if grass is below the sign rather than concrete or some
other material.
Figure 9: Temperature Sensor Eave/Wall Mount
Figure 10: Temperature Sensor Mounting to Bottom of Display
Mechanical Installation 2-4