Garmin echoMAP CHIRP 40 Owner's Manual

Also see for echoMAP CHIRP 70 series: Owner's manual Installation instructions

Contents

Garmin echoMAP CHIRP 40 Owner's Manual Manual pdf 29 page image

a higher number. For laylines that display a higher sensitivityto changes in the boat's heading or true wind angle, enter alower number.Setting the Keel OffsetYou can enter a keel offset to compensate the surface readingfor the depth of a keel, making it possible to measure depth fromthe bottom of the keel instead of from the transducer location.Enter a positive number to offset for a keel. You can enter anegative number to compensate for a large vessel that maydraw several feet of water.1 Complete an action, based on the location of the transducer:• If the transducer is installed at the water line À, measurethe distance from the transducer location to the keel of theboat. Enter this value in steps 3 and 4 as a positivenumber.• If the transducer is installed at the bottom of the keel Á,measure the distance from the transducer to the waterline. Enter this value in steps 3 and 4 as a negativenumber.2 Select Settings > My Vessel > Keel Offset.3 Select or based on the location of the transducer.4 Enter the distance measured in step 1.Sailboat Autopilot OperationCAUTIONWhen engaged, the autopilot controls only the rudder. You andyour crew remain responsible for the sails while the autopilot isengaged.In addition to heading hold, you can use the autopilot to maintaina wind hold. You can also use the autopilot to control the rudderwhile tacking and gybing.Wind HoldYou can set the autopilot to maintain a specific bearing relativeto the current wind angle. Your device must be connected to aNMEA 2000 or NMEA®0183 compatible wind sensor to performa wind hold or a wind-based tack or gybe.Setting the Wind Hold TypeBefore you can enable the wind hold type, you must connect aNMEA 2000 or NMEA 0183 wind sensor to the autopilot.For advanced autopilot configuration, see the installationinstructions included with your autopilot.1 From the autopilot screen, select MENU > Autopilot Setup >Wind Hold Type.2 Select Apparent or True.Engaging Wind HoldBefore you can enable the wind hold type, you must connect aNMEA 2000 or NMEA 0183 wind sensor to the autopilot.When the autopilot is in standby mode, select Wind Hold.Engaging Wind Hold from Heading HoldBefore you can enable the wind hold type, you must connect aNMEA 2000 or NMEA 0183 wind sensor to the autopilot.With heading hold engaged, select MENU > Wind Hold.Adjusting the Wind Hold Angle with the AutopilotYou can adjust the wind hold angle on the autopilot when windhold is engaged.• To adjust the wind hold angle in increments of 1°, select or.• To adjust the wind hold angle in increments of 10°, hold or.Tack and GybeYou can set the autopilot to perform a tack or gybe whileheading hold or wind hold is engaged.Tacking and Gybing from Heading Hold1 Engage heading hold (Engaging the Autopilot, page 15).2 Select MENU > Tack/Gybe.3 Select a direction.The autopilot steers your boat through a tack or gybe.Tacking and Gybing from Wind HoldBefore you can engage wind hold, you must have a wind sensorinstalled.1 Engage wind hold (Engaging Wind Hold, page 23).2 Select MENU > Tack/Gybe.3 Select Tack or Gybe.The autopilot steers your boat through a tack or gybe, andinformation about the progress of the tack or gybe appearson the screen.Setting a Tack and Gybe DelayThe tack and gybe delay allows you to delay steering a tack andgybe after you initiate the maneuver.1 From the autopilot screen, select MENU > Autopilot Setup >Sailing Setup > Tack/Gybe Delay.2 Select the length of the delay.3 If necessary, select Done.Enabling the Gybe InhibitorNOTE: The gybe inhibitor does not prevent you from manuallyperforming a gybe using the helm or step steering.The gybe inhibitor prevents the autopilot from performing agybe.1 From the autopilot screen, select MENU > Autopilot Setup >Sailing Setup > Gybe Inhibitor.2 Select Enabled.Gauges and GraphsThe gauges and graphs provide various information about theengine and environment. To view the information, a compatibletransducer or sensor must be connected to the network.Viewing the CompassYou can view information about your bearing, heading, androute using the compass.Select Gauges > Compass.Gauges and Graphs 23