User manual LOWRANCE X-15 OPERATION MANUAL

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Manual abstract: user guide LOWRANCE X-15OPERATION MANUAL

Detailed instructions for use are in the User's Guide.

[. . . ] Paper Saving Feature WithoutAlternate Transmit and Print Minimum Paper Speed RANGE (feet) 10-120 130-510 520-830 Below 840 Inches Per Mm 1. 0 INSTALLATION AND OPERATION MANUAL APPROXIMATE PAPER SPEED MODEL X-15 GRAPH RECORDER Hours Per Roll 10 0. 5 0. 2 0. 2 20 50 50 -- Maximum Paper Speed Inches Hours Per Mm Per Roll 3. 0 3. 3 2. 0 5. 0 1. 2 0. 75 8. 3 13. 3 APPROXIMATE PAPER SPEED With Alternate Transmit and Print Minimum Paper Speed Inches Hours Per Mm Per Roll 0. 6 17 25 0. 4 0. 2 50 0. 2 50 Maximum Paper Speed Inches Hours Per Mm Per Roll 2. 0 5. 0 1. 2 RANGE (feet) 10-120 130-510 520-830 Below 840 0. 75 0. 75 8. 3 13. 3 13. 3 LITHO USA 988-0083-01 · LOWRANCE ELECTRONICS, INC. 12OOO E. 74128 PDF compression, OCR, web-optimization with CVISION's PdfCompressor I! E'l L 30 U RANGE:10-30 FEET SENSITIVITY: 3/4 SUPPRESSOR: MINIMUM PAPER SPEED: 3/4 GRAYLINE: MINIMUM Figure 50 ft 1 -i :4 5 U, RANGE: 10-30FEET SENSITIVITY: 3/4 SUPPRESSOR: MINIMUM JO PAPER SPEED: MAXIMUM GRAYLINE: MINIMUM Figure 51 A & I- A L RANGE: 10-30 FEET SENSITIVITY: MAXIMUM SUPPRESSOR: MINIMUM & NEAR BOTTOM UNDER SCHOOL OF SMALLERFISH NOTE LARGER FISH ON Figure 52 PDF compression, OCR, web-optimization with CVISION's PdfCompressor 25 INDEX Introduction How It Works Installation Transducer Selection Basic Operation Suppressor Paper Speed SUPPRESSOR: MINIMUM SENSITIVITY: 3/4 2 2 3 4 5 S RANGE:0-40 FEET . 7 LINES:OFF PAPER SPEED:3/4 Figure 47 GRAYLINE® Range Lower Limit Upper Limit Lines Marker Scale End Of Paper How To Read Graphs Paper Loading Stylus Replacement Do's and Dont's 7 7 8 8 9 9 9 10 10 10 12 15 17 17 17 17 18 18 18 RANGE: 0-30 FEET SUPPRESSOR: MINIMUM SENSITIVITY: 3/4 LINES: ON PULSEWIDTH:100 MICRO-SECONDS PAPER SPEED: MAXIMUM Figure 48 Troubleshooting Advanced Operation Surtace Clarity Control (SCC) Feet, Fathoms, Meters Transmit and Print Alternate ' Transmitter Pulse Width Specifications Service Information 22 22 . RANGE:10-50 FEET SENSITIVITY: MAXIMUM SUPPRESSOR: MINIMUM PAPER SPEED: 3/4 LARGE SCHOOLOF FISH AT 12 TO 26 FEET Figure 49 24 PDF compression, OCR, web-optimization with CVISION's PdfCompressor The Lowrance X-15 is a highly sophisticated recording depth sounder. Thanks to a microcomputer, the X-15 can do more than any other depth sounder in its price range. Full control of the system is at your finger tips to meet the changing demands of varying bottom conditions, waterdepth and boat speed. [. . . ] Transmit and Print Alternate When using the X-15 in deep 18 water, it may be desirable to slow the paper speed down considerably. However, when doing so, you may get "over print" or very dark, heavy printing over an area that is difficult to read. A feature that the X-15 makes available is the Transmit and Print Alternate which, when activated, causes the stylus to print every other revolution instead of every revolution. Since the stylus only prints every other revolution, the recorded information is not squeezed together into a very small area. This allows better recordsat slower paper speeds. Also, the scale numbers are spread out more, so they are more legible. Prevents the possibility of "wrap around". This is the undesirable occurrence of the second or third bottom echo printed on the paper at the top or middle of the page. Many times this can interfere with fish or other targets that you wish to see. This happens mainly on lower frequency units, although it does sometimes show up on high frequency graphs. To use the Transmit and Print Alternate function, press the UPPER and LOWER keys simultaneously. If you wish to turn the function off, simply press the UPPER and LOWER keys again. pared to real sonar signals. Advancingthe Suppression knob will cause the system to reject these unwanted, short pulses without reducing the sensitivity in any way. This patented design is exclusive with Lowrance. However, with high suppression settings, the graph record becomes coarse and the ability to separate fish from the bottom or from other fish will be decreased. (See Figure 10. ) Therefore, the lower the suppression setting, the better. Advance the knob setting only as far as RD chart paper when operating in deep water The chart below gives the points where the maximum speed of the paper is slowed. PAPER SPEED 1 Fastest paper speed 2 Medium fast 130'-510' paper speed 52O83O 3 Medium slow paper speed 4 Slowest paper Below 840' speed The chart paper may be slowed RANGE 10'-120' I® I lirf P, , " . I) 2 : Figure 9 PROPER SETrING necessary to remove the erratic, unwanted noise marks. Most of the time at low or trolling speeds, no suppression will be needed. Paper Speed Control This knob adjuststhe speed of the chart paper. For good detailed graphs, in shallow to medium depths, turn the paper speed control up to at least ¾ when trolling. For best details, turn it up to maximum. This will show proper fish arches at low speeds and Transmit Pulse Width The noise suppression system in the X-15 is a patented pulse width discrimination suppression circuit, and is the same as the one keeps high speed information from being compressed. The paper speed should be turned down when using the unit in deep water This will prevent gap from appearing in the record. [. . . ] Remember, too, that there must be some movement between the fish and boat to develop the arched mark. Sharp, well-defined signatures Thermoclines The temperature of water in the Figure 32 Figure 35 to bottom. Layers of different temperatures form, and the junc- lake is seldom constant from top can detect this invisiblelayer in the water, but the Sensitivity knob will probably have to be set at the ¾ point, or higher. I p Figure 33 Figure 36 Figure 24 11 14 PDF compression, OCR, web-optimization with CVISION's PdfCompressor CAUTION -- High voltage is present in the electronic section when the unit is turned on. Release both catches on the top of the case. [. . . ]

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