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long transmission times may gradually affect the heading. For this reason, it is recommended that the CPT
remain off or on Standby mode during SSB transmissions.
Magnetic interference may lengthen the warm-up time for the sensor, the time taken to settle on a new
heading; or if strong enough, completely prevent settling on a heading.
With steel vessels, the control box must be at least 6 feet from steel. With mild magnetic interference, the
pilot will may operate fine on some headings but not others, depending on the sensor mounting location.
Some older steering systems in fiberglass or wood boats may have magnetized parts in the pedestal,
wormdrive or parts of the steering system or engine controls. Refer to the section "How to check for
magnetic interference" in the CPT Installation Manual for more information.
Basic circuit function test:
To check basic circuit function, remove belt and engage clutch. Keep the vessel on a consistent heading
during this test. Flip sensor to Standby, set Rudder to 5 and Deadband to 3. After a minimum 60 second
warm-up, toggle to Hold-heading. The clutch should be staitonary for a brief time, and
correction every 10 seconds.
make corrections to port. Push the 10° starboard button once and the clutch should rotate back to
starboard and stop. Slightly rotating the sensor box itself should bring the same results.
Hold Heading, it is normal for the pilot to make a small correction every 10 seconds when the boat is stationary.
Reversed Power Wires:
The CPT will not operate at all if the polarity of the power wires are reversed. The red wire must
connect to 12v(+), the black wire to 12v(-).
If it is necessary to return the CPT for service, return both the drive and the sensor units. Do not cut
any wires! You must contact us before returning the CPT. We may be able to solve your problem
over the phone. We must charge for checkout during warranty if the returned CPT functions properly
and the problem is in the boat.
Part IV Technical Specifications
Compass Sensor
Electronic heading sensor
Power Requirements
12 Volts DC
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Push the 10° port button once and the clutch should turn to port and then
0.08 amp standby current
0.4 amp average current drain, varies with load &
settings
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may make a small
When left on