1101/1201 Technical Manual
07/19/02 Page 20 1201 - JULY 19 '02
Perform an accuracy test every 20 degrees. Pass if total error is less than or equal to 4 degrees.
16. AUTO ADJUST – ComNav Fluxgate Compass
Place the Fluxgate compass on a Lazy Susan. Place a magnet approximately 3 inches away
from the compass at 45 degrees. Perform an auto adjust. Please see the compass
compensation section of the 1101 Operation and Installation manual for further instructions on
compass compensation. Perform an accuracy test every 20 degrees. Pass if the total error is
less than or equal to 4 degrees.
17. FULL RESET and DOCKSIDE SETUP
Perform a Full Reset and Dockside Setup. Leave the pilot set for a magnetic compass.
18. MAGNETIC COMPASS
Plug a Magnetic compass into the pilot. Select the magnetic compass option in the Dockside
Setup. Adjust Compass adjust to make the autopilot and compass agree. Perform accuracy
tests every 20 degrees. Pass if total error is less than or equal to 4 degrees. Reset the compass
adjust to zero.
19. NAVIGATION INPUT
Feed NMEA 0183 Autopilot sentences into the 1101 distribution box via the NAV INPUT on the
Test Bench. Turn the pilot on and put into NAV mode. After a few seconds double-press the
NAV key. The type of data being received or the name of the 0183 data sentences should be
displayed.
20. HEADING OUTPUT (1 pcb SPUs only)
Connect a cable to the HEADING OUTPUT connector on the 1101/1201 SPU. Note: that the two
board SPU is not supplied with this connector. Connect the ‘scope ground to the cable shield and
the probe lead to the white wire. Data type signals should appear on the ‘scope. Similarly, check
the green lead. Check that the blue lead has data clock pulses on it. The yellow lead should have
bursts of data on it.
NOTE:
The Final test procedure is intended to check all the basic functions of the autopilot. Once the
unit is re-installed on the vessel you must go through the dockside setup procedure and complete
the compass selection and compensation.
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