Raymarine p70r - Sea Trial Calibration

8.8 Adjusting the hard-over time —
SmartPilot and SPX
On vessels without a rudder reference transducer, it
is important to set a Hard Over Time.
Before attempting to follow this procedure ensure
you have read and understood the Rudder Check
warning provided in this document.
To estimate your hard over time follow the steps
below:
1. Adjust your Rudder Gain setting to the maximum
value, making a note of the original value. The
Rudder Gain setting can be accessed from the
Drive Setting menu: Menu > Set-up > Autopilot
Calibration > Drive Settings > Rudder Gain.
2. With the autopilot in Standby, manually turn the
rudder / engine full to port. (For vessels with
power steering the engine should be running
when turning the rudder.)
3. Engage Auto mode.
4. Press the +10 and +1 buttons at the same time
(p70/p70s) or use the Rotary (p70R/p70Rs) to
alter your locked heading by 90 degrees, use a
stop watch to time the movement of the rudder /
engine.
5. Estimate how long it would take to move the
rudder from full port to full starboard. This
estimate is your Hard Over Time.
6. Enter this estimate as your Hard Over Time. The
Hard Over time setting can be accessed from the
Drive Settings menu: Menu > Set-up > Autopilot
Calibration > Drive Settings > Hard Over Time.
7. Change your Rudder Gain back to its original
value.
8. After setting your Hard Over Time, observe your
autopilot’s behavior and if required, make small
adjustments to the Hard Over Time value until a
satisfactory result it achieved.
Warning: Rudder check
If no rudder reference has been tted you
MUST ensure that adequate provision is
made to prevent the steering mechanism
from impacting the end stops.
8.9 Sea trial calibration
Before you can use the autopilot open water checks
are required. The water must be calm, with light
or no wind. Leave plenty of room to manoeuvre.
The Sea Trial wizard guides you through the steps
required for Sea trial calibration.
The Sea trial wizard includes the following steps:
• Swing compass
• Align compass to GPS
• Align compass manually
• Auto Learn.
You can access the Sea trial wizard at any time
from the Commissioning menu: Menu > Set-up >
Autopilot calibration > Commissioning.
Note: Sailing vessels should perform the sea trial
under engine power.
Note: The Sea trial wizard can be cancelled at any
time by pressing the Standby button.
Warning: Seatrial calibration
Ensure you have sufcient sea room
for calibration. The seatrial calibration
maneuvers require a clear, familiar area of
water. Ensure you are not likely to collide
with any vessel or other obstruction during
calibration.
Warning: Maintain sensible speeds
The autopilot may make unexpected
turns.
Compass swing
You will need to turn your vessel in slow circles
while the system automatically makes adjustments
to account for compass deviation. Each 360-degree
circle should take no less than two minutes, and you
should complete at least two circles.
1. Start moving vessel in slow even circles, then
press START.
2. Keep speed to below 2 knots. Watch the display
to ensure your turn rate is not too fast. If the
message ‘Slow Down’ is displayed reduce your
rate of turn, this can be achieved by slowing
down and / or steering in a wider circle.
If a 'Slow Down' message is displayed the current
circle will have to be repeated.
3. When the compass has been calibrated, a
message will be displayed showing the detected
deviation. If this is more than 15 degrees you will
need to abort the calibration process and resite
the compass further away from metal items, then
repeat the calibration process. If you still nd a
deviation of more than 15 degrees, contact your
Raymarine dealer for advice. If the deviation is
within acceptable limits, press CONTINUE.
You can cancel Seatrial calibration at any time by
pressing STANDBY.
Commissioning - SPX and SmartPilot systems
55