3M DFS 700

Technical Information DFS 700 / 04.2009 9-4
Symptom Possible cause Solution
Cables of power supply are not
correctly connected
Check power supply connection
of DFS 700
DFS 700 fuse failed Check DFS 700 fuse
No power to DFS 700 Check power supply
Speed range in the configuration
parameters is wrongly chosen
Check speed range settings in
the configuration parameters
LED module damaged Check and read out status of
the DFS 700
Wrong alignment of the DFS
700 towards the road
Align DFS 700 correct to the
road
LED display in only one
color
Settings are made for only one
color
Specify the second color in the
configuration settings
Operating mode settings are
limit mode
Chose radar mode in the
operating mode settings
Only one speed value is
displayed
Wrong configuration parameters Check configuration parameters
Operating mode settings are
limit mode
Chose radar mode in the
operating mode settings
Large objects reflecting the
radar waves
Check location and the
alignment of the DFS 700
Incorrect speed values
are displayed
DFS 700 is not aimed correctly Check location and the
alignment of the DFS 700
Operating mode settings are
covert mode or standby
Chose radar mode in the
operating mode settings
No speed value is
displayed
DFS 700 is switched off Switch on DFS 700