Garmin Fishfinder 250 Owner's Manual

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18To toggle the data field display:1. Use the ARROW keys to highlight the ‘Advanced Data Fields’ fi eld and press ENTER.2. Select ‘On’ or ‘Off’ and press ENTER.To access the Advanced data setup:1. Use the ARROW keys to highlight ‘Configure Advanced Data Fields’ and press ENTER.You may either directly edit an existing field on the left or add a new data field from the list on the right.Highlighted items on the right are displayed with a black background and the associated field on the left isoutlined with a moving dotted line.To modify or add a data field:1. Using the ARROW keys, press LEFT to modify an existing field or RIGHT to add a new one, then UP orDOWN to highlight the desired item. Press ENTER and the available options will appear on the right.2. Select an option from the list on the right and press ENTER. You may choose to display a ‘Wide’ or‘Narrow’ sized format (some data fields are only available in ‘Wide’ format and this option will be grayedout), arrange the display order with ‘Move Up’ or ‘Move Down’ (Narrow data fields always arrangebelow Wide data fi elds), ‘Remove’ or ‘Replace’ the data field. For ‘Replace’, choose a replacement itemfrom the list and press ENTER.3. Highlight ‘OK’ and press ENTER to save changes.Temp (Temperature) TabDisplays the water temperature log (if equipped with a temperature transducer/sensor). The graph readsfrom right to left, so that the most recent temperature measured is displayed on the far right side of thegraph. The dotted lines within the graph indicate intervals in the temperature scale and the duration of time.The following settings are available:• Log and Graph Scale — sets the temperature range (in degrees) for displaying the log. Select‘Auto’ to have the unit determine the best range, or select a span of 2, 4, 6, 8 or 10 degrees.• Reset (Scale) — resets the scale range for the temperature graph. Useful when the scale spans alarge range due to extreme temperature changes. Only shows if Log and Graph Scale is set to ‘Auto’.• Log Duration — sets how fast or slow the temperature log scrolls; the shorter the time duration,the faster the temperature log scroll. Select a duration from 1 minute to 2.5 hours.Unit OperationMain Menu OptionsMain Menu - Temp TabModifying a Data FieldData Field Setup screen