Continuous Test - Furuno DS-30 Operator's Manual

Doppler sonar
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System Test

Continuous Test

Press each key to see if the corresponding key mark on the screen is
highlighted in reverse video. For the trackball, check that the hand
pointer ( ) on the screen moves within the circle as the trackball is
operated.
To terminate the panel test press the MENU key.
The single test executes the system check for one cycle displaying the
test result for each item checked. Items checked are RAM/ROM and
battery for display, processor and transceiver units. Seven OKs should
be displayed as shown below.
In window for PORT FORE and STBD beams, color test patterns are
displayed, They are an orange bar and a 15-color bar which are
alternant displayed, checking color generators in the display unit.
The continuous test executes the system check repeatedly. In addition
to the check item of the single test, it displays the transmission
voltage/current and received echoes for port, fore and starboard
beams.
1
Display transmission voltages for PROT, FORE, STBD beams.
Check that the three voltages are more than 180 V. *
2
Display transmission currents for PORT, FORE and STBD
beams. Check that the three current are more than 3.0 A. *
3
Displays received echoes for FORE, PORT and STBD beams.
When speed-readings are abnormal, check that there is no
interruption of echoes due to aeration.
Use DEPTH RANGE key to change the depth scale.
*: The values are changeable, so read the maximum values.
10-2

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