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ADVANCED FEATURESADVANCED FEATURES
USING DIAGNOSTIC
Boat Speed/Water Temperature Connection. Other
connections tested include the boat speed and surface water
temperature sensors. These accessory sensors can be
purchased independently or together as a single sensor (see
the Humminbird Accessories catalog). If the sensors are
connected and working properly a “connected” message
appears.
The speed input feature only works when the boat is in
motion as the paddle wheel or the speed sensor must rotate
to be detected.
Voltage Input. Another connection tested is the voltage input, and is especially helpful
in diagnosing input voltage problems. The current input voltage is displayed. If voltage
fluctuations or power supply in excess of 20 \/DC or less than 10 VDC is suspected, use
the diagnostic screen to confirm input voltage. Often small outboard motors do not
effectively regulate voltage when operated at high engine speeds.
Use Diagnostic while running the boat at high speeds to show the voltage gain. Also, if
you are using the 200DX in portable configuration or from the trolling motor battery
Diagnostic can be used to evaluate the health of the battery by showing the current
voltage.
Total Time. The total time category indicates the total time the unit has been in use
since shipped from the factory. It is normal for some hours to appear in the total time
when the unit is new due to factory testing. While this is often of interest to the user it is
primarily a diagnostic tool for the repair technician should the unit need service.