How To Adjust The Analog Indicator - Furuno DS-60 Installation Manual

2. WIRING
2.3

How to Adjust the Analog Indicator

If it is necessary to adjust the offset or gain of the analog indicator or analog output,
output dummy speed from the demo mode then adjust the applicable potentiometer
on the MAIN board in the DS-610.
1) ANA_DISP1 offset adjustment: R180 (Rotate clockwise to offset in the AST direction)
2) ANA_DISP1 gain adjustment:
3) ANA_DISP2 offset adjustment: R169 (Rotate clockwise to offset in the AST direction)
4) ANA_DISP2 gain adjustment:
5) ANA_V offset adjustment:
6) ANA_V gain adjustment:
7) ANA_C offset adjustment:
8) ANA_C gain adjustment:
R190
R217
R212
R198
How to adjust the analog indicator
1. Set 0 kn for test speed in the demo mode, then adjust the offset of the analog in-
dicator.
2. Set 15 kn or 20 kn for test speed in the demo mode, then adjust the gain of the
analog indicator.
Note: Do the test for the gain adjustment with the ship's cruising speed.
The specifications of voltage and current for analog indicator
Voltage output
Current output
2-6
R181 (Rotate clockwise to decrease the gain)
R181 (Rotate clockwise to decrease the gain)
R198 (Rotate clockwise to increase the offset value)
R190 (Rotate clockwise to increase the gain)
R212 (Rotate clockwise to increase the offset value)
R217 (Rotate clockwise to increase the gain
-10 to 30 kn: -3.33 to 10.0 V
-10 to 30 kn: 4.0 to 20.0 mA (0 kn: 8.0 mA)
R181
R170
R169
R180