Daktronics DataTime Outdoor LED Time & Temperature Displays - Manual (Page 10)

Locating the Temperature Sensor
Refer to Figure 5 for recommendations.
Recommendations and Requirements:
• First choice for the sensor location is a north eave or northern exposure, away from
direct sunlight and above grass. This location gives extra stability and accuracy to the
sensor because of the additional shade usually provided by a northern exposure.
• Second choice for locating the sensor is on the display itself, or somewhere on the
display structure. (This works best with light-colored displays.) Location of the
sensor should be above, below, or on the northern edge of the display to keep the
sensor shaded as much as possible. Sensor readings will be more accurate if there is
grass below the sign, rather than concrete or asphalt.
Things to Avoid:
• The sensor requires a location away from chimneys, air conditioners, vents, tar roofs,
concrete, and parking lots, all of which can cause abnormal temperature fluctuations
and incorrect sensor readings. For accurate readings under these conditions, keep a
separation of at least 20-30 feet horizontally and 8 feet vertically between the sensor
and the influential element.
• Locations that restrict air movement are also unsatisfactory.
• When a display has two faces, do not mount the sensor between the faces.
Figure 5: Appropriate Locations for Temperature Sensor
6 Mechanical Installation