User manual LOWRANCE X-55A

[. . . ] We backyourinvestment inquality productswithquick, expertserviceand in the United Statesand genuine Lowrance®replacement parts. Ifyou're Customer ServiceDepartyouhavequestions, please contacttheFactory ment usingourtoll-freenumber listed below. You must send the unitto thefactoryforwarrantyservice orrepair. Please call thefactorybefore sending the unit. [. . . ] Theprocedure to adjustit detail, is the samewhetherthe unit is in theautomatic or manual mode. To adjustthesensitivity, press the SENS key. Thesensitivity adjust menu appearsat thebottomofthescreen. Thesensitivitymenu hasleftand rightarrows, plus ahorizontal bar graph. The graph gives a visual indication of the sensitivity level. The number abovethe INCarrow also shows thepercentage of sensitivity in use. To increase the sensitivity level, pressthe right arrow key. As you press the key, the menu's bar graph will grow wider and the percentage will increase in value. You can also see the difference on the chart record as it scrolls. Whenthe sensitivity is at thedesired level, release the key. the To decrease sensitivity level, press the key adjacent to the leftarrow. Thebar graph and percentagewilldecrease. When thesensitivity is atthe desired level, release the key. When you reach either the maximum or minimum limit, a tone sounds. of Thetemperature waterinthe lake isseldom constantfrom topto bottom. (Seethepicture on the nextpage. ) Layers of different temperaturesform, andthe junction of awarmand cool layerofwateris called a thermocline. The depth and thickness of thethermocline can varywith the season or time of day. In deep lakes there maybe two or more at different depths. Thermoclines are important to fishermen because they are areas where fish are active. Many times baitfish will be above the thermocline while largergame fish will suspend in or justbelow it. TheX-55Acandetectthisinvisible layer inthewater, butthesensitivitywill probablyhaveto be turned up to see it. mode is off, the depth of thewaterwill affect the size and shape of the fish arch due to the cone angle diameter. For example, iftheconepasses overafish in shallow water, the signal displayed on the X-55A maynot arch at all. Thisis duetothenarrowconediameter and the resolution limitations of the display. PDF compression, OCR, web-optimization with CVISION's PdfCompressor 14 39 BOATS DIRECTION OF TRAVEL RANGE - Automatic When turned on for the first time, the X-55A automatically places the bottom signal in the lowerhalfofthe screen. This is calledAuto Ranging and is part of the automatic function. The range cannot be changed manually whilethe unitis in automatic. RANGE- Manual TheX-55Agives youcontrol overtherange whenit's in themanual mode. [. . . ] Ascreen appearsthatis similar to the one at right. IE T CU I NCL TEMP Ufl rIN 25 L1 PDF compression, OCR, web-optimization with CVISION's PdfCompressor Now pressthekey adjacent to the desired display. For example, toturn thetemperature displayon, pressthekey adjacentto the "INCLUDE TEMP. " label. Once you do this, the lfl 597FT 67. 9 °F REMOVE DEP REMOVE TEMP. I key adjacent to the 'TURN CHARTCURSOR OFF"label. TheX-55Areturnstothe sonar screen with the chart cursor turnedoff. AUTO 0 52. OFT digital display in the cornerof the screen will show the temperature inadditiontothedepth. [. . . ]