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2014-2015 Copyright Traffic Logix® Corp. SafePace® 700 Variable Message Radar Speed Sign
Installation Manual V. 1.1
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LED Message Board PCB (20)
•
Bluetooth or Wi-Fi installed/configured onto controller card (1)
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Ambient Light Sensors (2)
WARNING
: Before ever doing any maintenance on a sign, it is critical that the
power is first turned off. This will prevent accidental electrical shock that can be
fatal and that can also damage electrical components.
*If you suspect that you require a replacement of any of the above-mentioned
components, please call
. If necessary, a Diagnostic Toolbox can be sent out to help
trouble-shoot any issues you may be having.
Determining True South
There are three ways to determine which way is true south.
Google Earth
You can use
to zero in on your house and find true south. This requires downloading a
small program from the Google Earth site.
Place the item you want to determine the direction of right in the center of the display, as the angles
change as you pan around.
In the “View” drop-down menu, selecting "Grid" will display a latitude-longitude grid in which the grid
lines run in the north-south and east-west directions.
Solar Noon Method
This method uses the fact that the sun is always true south at solar noon. A shadow cast by a vertical
object at solar noon runs true north-south. So, at solar noon, use the shadow cast by a plumb-bob
string or the vertical edge of a building to determine true south.
To determine the local time that corresponds to solar noon, find the sunrise and sunset times from a
current local paper (where "local" and "current" are both important!). Most GPS units will also give the
times for sunset and sunrise -- just make sure the GPS is set to your time zone.
