Garmin ECHOMAP Ultra 126sv Owners Manual PDF - Page 42
Setting the Keel Offset, Setting the Water Temperature Offset, Calibrating a Water Speed Device,
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Calibrate Water Speed: Calibrates the speed-sensing transducer or sensor (Calibrating a Water Speed Device, page 36). Vessel Type: Enables some chartplotter features based on the boat type. Fuel Capacity: Sets the combined fuel capacity of all the fuel tanks on your vessel (Setting the Fuel Capacity of the Vessel, page 30). Fill Up All Tanks: Sets the tank levels to full (Synchronizing the Fuel Data with the Actual Vessel Fuel, page 30). Add Fuel to Boat: Allows you to enter the quantity of fuel you added to your tank, when you did not entirely fill up the tank (Synchronizing the Fuel Data with the Actual Vessel Fuel, page 30). Set Total Fuel Onboard: Sets the combined amount of fuel in all the fuel tanks on your vessel (Synchronizing the Fuel Data with the Actual Vessel Fuel, page 30). Set Gauge Limits: Sets the upper and lower limits of various gauges (Customizing Engine Gauge and Fuel Gauge Limits, page 37). CZone™: Sets the digital switching circuits. SeaStar Instance: Sets the digital switching circuits. Hull ID: Allows you to enter the Hull Identification Number (HIN).The HIN might be permanently affixed to the upper starboard side of the transom or outboard side. Setting the Keel Offset You can enter a keel offset to compensate the water depth reading for the transducer installation location. This allows you to view the depth of the water below the keel or the true depth of the water, depending on your needs. If you want to know the water depth below the keel or the lowest point of your boat and the transducer is installed at the water line or anywhere above the end of the keel, measure the distance from the transducer location to the keel of the boat. If you want to know the true water depth and the transducer is installed below the water line, measure the distance from the bottom of the transducer up to the water line. NOTE: This option is only available when you have valid depth data. 1 Measure the distance: • If the transducer is installed at the water line or anywhere above the end of the keel, measure the distance from the transducer location to the keel of the boat. Enter this value as a positive number. • If the transducer is installed at the bottom of the keel and you want to know the true depth of the water, measure the distance from the transducer to the water line. Enter this value in as a negative number. 2 Select Settings > My Vessel > Keel Offset. 3 Select if the transducer is installed at the water line, or select if the transducer is installed at the bottom of the keel. 4 Enter the distance measured in step 1. Setting the Water Temperature Offset Before you can set the water temperature offset, you must have a NMEA 0183 water-temperature sensor or a temperaturecapable transducer to measure water temperature. The temperature offset compensates for the temperature reading from a temperature sensor. 1 Measure the water temperature using the temperature sensor or temperature-capable transducer that is connected to the chartplotter. 2 Measure the water temperature using a different temperature sensor or a thermometer that is known to be accurate. 3 Subtract the water temperature measured in step 1 from the water temperature measured in step 2. This is the temperature offset. Enter this value in step 5 as a positive number if the sensor connected to the chartplotter measures the water temperature as being colder than it actually is. Enter this value in step 5 as a negative number if the sensor connected to the chartplotter measures the water temperature as being warmer than it actually is. 4 Select Settings > My Vessel > Temp. Offset. 5 Enter the temperature offset calculated in step 3. Calibrating a Water Speed Device If you have a speed-sensing transducer connected to the chartplotter, you can calibrate that speed-sensing device to improve the accuracy of water-speed data displayed by the chartplotter. 1 Select Settings > My Vessel > Calibrate Water Speed. 2 Follow the on-screen instructions. If the boat is not moving fast enough or the speed sensor is not registering a speed, a message appears. 3 Select OK, and safely increase the boat speed. 4 If the message appears again, stop the boat, and ensure the speed-sensor wheel is not stuck. 5 If the wheel turns freely, check the cable connections. 6 If you continue to get the message, contact Garmin product support. Setting the Fuel Capacity of the Vessel 1 Select Settings > My Vessel > Fuel Capacity. 2 Enter the combined total capacity of the fuel tanks. 36 Device Configuration