3M DFS 700, Installation And User Manual

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Technical Information DFS 700 / 04.2009
4-5
4.4 Operating modes
Various modes can be set in the DFS 700 using the user program. The preset red/green
colour change, flashing setting and activation settings for externally connected equipment are
taken into consideration in every mode. The measured speeds are recorded in all operating
modes except for the standby mode.
The speeds to be displayed can be limited such that very slow speeds (e.g. cyclists) or very
high speeds (to avoid abuse) are not displayed.
All modes can be time-scheduled to switch automatically to standby mode and back using a
user-defined switching program, so as to reduce power consumption in periods of low-traffic
density or low-relevance.
• Standby Mode
The DFS 700 operates with minimum power consumption, which only allows the equipment
to be configured using the user program. Radar and Display are inactive.
• Radar Mode
The speeds of approaching vehicles are measured and displayed and the speed data is
stored.
• Limit Mode
Like Radar Mode with the difference that a user-defined speed limit value is displayed to
approaching vehicles.
• Covert Mode
The speeds of approaching vehicles are measured and the data is stored, but nothing is
displayed. This mode enables driven speeds to be collected and assessed without
influencing traffic with a visible display.
• Demo Mode
The LED display shows a sequence of digits with changing red/green colours, varying
brightness and flashing frequency to test the quality and capabilities of the display
presentation.