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Fishﬁnder 250/250C Owner’s Manual

35

Thermoclines

One feature unique to Garmin is See-Thru

®

technology. See-Thru

technology allows the Fishﬁnder 250/250C to “see” through

thermoclines and locate ﬁsh where they live—and ﬁsh love

thermoclines. A rough deﬁnition of a thermocline is a break in the

water where the temperature changes faster than in the water above

it. Thermoclines give weak returns and are shown as the weakest

colors/shades (page 15).

Thermocline

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Содержание Fishfinder 250

Страница 1: ...Fish nder 250 250C high resolution sonar owner s manual Fish nder 250C shown...

Страница 2: ...torage medium to be viewed and to print one copy of this manual or of any revision hereto provided that such electronic or printed copy of this manual must contain the complete text of this copyright...

Страница 3: ...ral Time Phone 800 800 1020 or 913 397 8200 Online http www garmin com contactUs techSupport jsp Check the Garmin Web site www garmin com for links to Product Support and Product FAQs Enjoy your new F...

Страница 4: ...2 Basic Operation 13 Using the Keypad 13 Using the Sonar Page 14 Using the Adjustment Menu 16 Adjustment Options 17 Pausing the Sonar Page 20 Using the Main Menu 21 Graph Tab 21 Tools Tab 23 Con gurin...

Страница 5: ...s Standard Package plus Single Frequency 200kHz 14 Plastic Transom Mount Transducer with Depth and Temp Fish nder 250C Standard Package 010 00341 00 w o transducer Fish nder 250C Unit Swivel Mount Bra...

Страница 6: ...These transducers provide good all around performance In addition a variety of optional transducers are available from your local dealer or direct from Garmin 200 50kHz 12 45 plastic transom mount dep...

Страница 7: ...sed to extreme temperature conditions When installing the mounting bracket allow room for the routing and connection of the power and transducer cables Installing the Swivel Mount The Fish nder 250 25...

Страница 8: ...the bracket to the mounting surface 2 Drill the mounting holes If securing the base with machine bolts drill three 5 32 5mm holes at the locations you marked If securing the base with self tapping scr...

Страница 9: ...bracket arms apart Turn counter clockwise to widen the bracket arms clockwise to tighten 2 Adjust the unit angle and tighten the long mounting knob until snug 3 To tilt the unit loosen the long mounti...

Страница 10: ...bit drill a hole for a location to begin cutting the mounting surface 5 Using the jig saw cut the mounting surface along the inside of the dashed line indicated on the template NOTE Be very careful wh...

Страница 11: ...attery make sure the 2 Amp in line fuse supplied with the unit is installed If needed use a 2 Amp ACG 3AG replacement fuse If you decide to route power through the boat s fuse block remove the in line...

Страница 12: ...ect the Brown Data IN wire from the Fish nder to the Data OUT wire on the GPS NMEA harness 4 Set the Fish nder 250 250C NMEA Input Output to On page 27 For Garmin GPS units set the communications inte...

Страница 13: ...installation only the Red and Black wires are used The other wires do not have to be connected for normal operation of the unit You can download a copy of Garmin s proprietary communication protocol...

Страница 14: ...o getting the best performance from your new unit If the transducer lead is too short extension cables are available from your Garmin dealer Coil and secure any excess cable DO NOT cut the transducer...

Страница 15: ...ion for the transducer consider the following conditions The location has to be solid berglass devoid of any air bubbles laminates llers or dead air space The location needs to be in an area of clean...

Страница 16: ...ENU to return to the Sonar display Since water is necessary to carry the sounder s sonar signal the transducer must be in the water to work properly It is not possible to get a depth distance reading...

Страница 17: ...djustments ENTER Key press to select a highlighted menu option When entering data allows you to initiate entry and then accept the selected value s When paused in Pointer mode press to create a waypoi...

Страница 18: ...matically disappears when idle for 20 seconds 2 Press the Up or Down ARROW keys to change the backlight setting Press and release POWER BACKLIGHT to toggle the backlight setting between maximum user s...

Страница 19: ...onar returns are displayed as red strongest orange strong yellow medium green weaker and blue weakest The Fish Symbols option page 22 allows you to nd sh by viewing the actual sonar data a sh symbol o...

Страница 20: ...rent settings The adjustment window automatically disappears when idle for 20 seconds or you may press ADJ MENU to exit 2 Press the Up or Down ARROW keys to highlight the desired option and press ENTE...

Страница 21: ...an options are activated in the Adjustment Menu The Zoom function includes the following seven settings No Zoom displays the sonar picture with no zoom 2x Split shows two reduced size sonar pictures a...

Страница 22: ...lay is affected by the change If the display is Bottom Split or Bottom Lock the Span option adjusts the area from the bottom for which the unit displays data Gain controls the sensitivity of the unit...

Страница 23: ...tting Higher noise rejection settings make the unit less likely to show sh or structures Scroll adjusts the rate that the graph scrolls from right to left If you are sitting still or the graph is movi...

Страница 24: ...where it starts again To pause and unpause the Sonar display 1 From the Sonar page press ADJ MENU 2 Using the ARROW keys highlight the Pause option and press ENTER The Sonar display is paused The Poin...

Страница 25: ...the Up or Down ARROW keys to highlight different tab selections Press the Right ARROW key to access the selection elds Each time the Main Menu is accessed the unit returns to the last edited selection...

Страница 26: ...Range adjustment control The left value is the top of the scale and the right value is the bottom of the scale Background Color Fish nder 250C only allows you to change the background color of the So...

Страница 27: ...re graph on the Sonar page Advanced Data Fields toggles On or Off the advanced data elds on the Sonar page Con gure Advanced Data Fields activates the advanced data eld setup screen Con guring Advance...

Страница 28: ...existing eld on the left or add a new data eld from the list on the right Highlighted items on the right appear with a black background and the associated eld on the left is outlined with a moving dot...

Страница 29: ...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 and displays if Log...

Страница 30: ...he transducer reports a temperature above below inside or outside the speci ed values System alarms Battery sets an alarm to sound when the battery nears a critical state of discharge Timer allows you...

Страница 31: ...Speed transducer If prompted choose No to the retail demonstration mode for normal consumer simulator use If the unit does not detect a transducer it will automatically enter Simulator mode While in...

Страница 32: ...position reading is displayed The default format is latitude and longitude in degrees minutes and thousandths of a minute hddd mm mmm The following additional formats are available latitude longitude...

Страница 33: ...the depth of a keel in order to measure depth from the bottom of your keel instead of from the transducer s location Enter a positive number to offset for a keel Enter a negative number to compensate...

Страница 34: ...the speed sensor wheel is moving or safely increase boat speed If there is a problem with the speed sensor unit or if a speed senor is not installed a Water Speed Sensor Is Not Working message is dis...

Страница 35: ...layed on the graph The underwater data is displayed on the graph in the order it is returned rst returned rst on the graph Generally speaking if the only thing between the transducer and the bottom is...

Страница 36: ...water depth As shown the 10 cone angle 200kHz frequency approximately covers the area of a 6 foot diameter circle at a 30 foot depth When using the Fish nder 250 250C with Frequency set to Dual the u...

Страница 37: ...played on the graph On both graphs it appears that the sh and tree are side by side as shown in Example 1 However when we look at Example 2 we see that the sh can be several feet from the tree It is i...

Страница 38: ...tour along with any signi cant objects lying on the bottom The unit uses whiteline to make this bottom layer easier to distinguish With the Fish nder 250 250C whiteline helps accentuate where strong s...

Страница 39: ...ru technology allows the Fish nder 250 250C to see through thermoclines and locate sh where they live and sh love thermoclines A rough de nition of a thermocline is a break in the water where the temp...

Страница 40: ...y 50 200 kHz Depth 1500 foot max depth Depth capacity is dependent on water salinity bottom type and other water conditions Cleaning and Storage The Fish nder 250 250C is constructed of high quality m...

Страница 41: ...has changed by the amount entered in the Drift Alarm setup Fish Alarm A sh is detected The unit displays an icon and beeps if enabled This alarm does not display a message banner Running Simulator Th...

Страница 42: ...If you have any questions or would like additional information please refer to our Web site at http www garmin com prop65 Limited Warranty This Garmin product is warranted to be free from defects in m...

Страница 43: ...riginal or copy of the sales receipt from the original retailer is required Garmin will not replace missing components from any package purchased through an online auction International Purchases A se...

Страница 44: ...ng Time 30 Deep Water Alarm 26 Defaults 19 27 Depth 14 17 20 22 28 Depth Line 19 Depth Number 22 29 Depth Units 28 Display Mode 27 Distance Units 28 Drift Alarm 26 E ENTER Key 13 F Factory Settings 27...

Страница 45: ...Split Screen 17 19 Storage 36 System Tab 27 T Target Level 18 Temperature 22 Temperature Graph 23 Temperature Tab 25 Temperature Units 28 Testing the Installation 12 Time 30 Timer 26 Time Duration 25...

Страница 46: ...Ltd Unit 5 The Quadrangle Abbey Park Industrial Estate Romsey SO51 9DL U K Garmin Corporation No 68 Jangshu 2nd Road Shijr Taipei County Taiwan www garmin com Part Number 190 00328 00 Rev B For the l...

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