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. SKELLY DR., TULSA, OKLA. 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. You can select the unit's sensitivity setting, suppression level, depth range, paper speed, and the degree of gray line" used to enhance the recorded information. The patented Lowrance variable suppression system not only filters out false signals withoutdistorting the real ones, but is synchronized with the gray line function to provide clear signals under all conditions. The permanent record of what your sonar has "seen" is roiled and stored inside the case. Small boat sonar systems are routinely used to measure water depth, examine bottom contours, and locate fish. The capability of the X-15 goes far beyond the ordinary. Clues to the composition Figure 1 I INTRODUCTION of the bottom are given -- schools of bait fish are easily distinguished from solitarygame fish -- there is about bottom contours and submerged shipwrecks -- fish closer together than six inches can be shown separately-- concentrations of algae, mossor plankton can be identified -- at trolling speeds individual fish are commonly recorded with a characteristic "arched" signature which distinguishes them from their surroundings -- layers of water with differenttemperatures can be detected under good conditions, and vertical movement of fish, (up or down), can be shown. HOW IT WORKS When the unit is turned on, an electronically regulated motor drives a lightweight belt located at the right edge of the recording paper. The marking stylus is attached to this belt. When the stylus is at the top of the paper a small mark is made. This is called the zero mark, and represents the surface of the water. a continuous display of information t - - I, High Speed (46 M.F.H.) SUPPRESSION: OFF SENSITIVITY: ON 1/2 POSITION - 1 Figure 44 NOTE POOR RECORD CAUSED BY NOT USING SUPPRESSION WHEN AT HIGH SPEED. - -i a --,_.--,, I,.' - t''.'9ø'a't High Speed (46 MPH.) SUPPRESSION: -- ADEQUATE SElliNG ON SENSITIVITY: ON -- 1/2 POSITION Figure 45 s Fith 17 ft. Depth 35 ft. TRULINE RECORDER BOTH SENDAND RECEIVESSIGNALS. RECEIVED SIGNALSARE INDICATED ON GRAPH PAPER. SUPPRESSOR: MINIMUM RANGE: 50 TO 70 FEET PULSE WIDTH: 100 MICRO-SECONDS SENSITIVITY: 3/4 LINES: OFF PAPER SPEED: MAXIMUM Figure 46 23 PDF compression, OCR, web-optimization with CVISION's PdfCompressor 2 SPECIFICATIONS -- X-15 Depth Ranges: Feet, fathoms, meters. Operating Frequency: 192 kHz (192,000 cycles per second); accuracy is within 0.6 percent. Pulse Length: (duration of pulse): 200-1000/ks (30-2000/ks programable) Operating Voltage: Minimum: 10 volts DC Maximum: 15 volts DC Operating Current: 0.7 to 1.8 amps depending on printing densityand output power. will reduce sensitivity or may even preventsounding. GOT A PROBLEM?LET US HELP! If you have a problem with your sonar unit, please give us a chance to help before sending it in for repair. Assistance can often be extended by telephone or letter. Write or call one of our Authorized Service Centers or the Lowrance Electronics, Inc., Customer Service Department in Tulsa, OK. (Toll-free 1-800-331-3889). Please detail the problem you are experiencing. Our Service Department may be able to save you the inconvenience of returning your unit. If it is determined that your unit must be returned, full shipping instructions will be provided. SCHEMATIC DIAGRAM AND PARTS LIST Should you desire a Schematic Diagram and Parts list for your Lowrance TRUELINE RECORDER, send $1.00 to PARTS LIST, Lowrance Electronics, Inc., 12000 East Skelly Drive, Tulsa, Oklahoma 74128. Be sure and give us the Model Numberand Serial Number of your SONAR INSTRUMENT. GRAPH PAPER Figure 2 functions. The stylus continues to move This section will be adequate for down the edge of the paper while most situations. However, once the sound pulse is traveling you have mastered the basic opthrough the water, and when an the stylus makes eration of the X-15 as described echo is detected, in Section III, you may wish to try another mark on the paper. The of the objectwhich reflected some of the features described in depth Section VI -- Advanced Operathe echo can be read in feet by tion. This chapterwill explainfour its location on the comparing other featuresthat will enable the to the depth scale printed paper serious operatorto get the on the paper. maximum use out of this equipment. A variable speed motor drives We urge you to read this manis the papergraph. (The paper ual thoroughlyand familiarize treated so that the stylus will burn it to leave a permanentblack yourself with the controls. Although this is a very advanced mark.) During one revolution of a very narrow mark unit, it is easy to use, thanks to the stylus belt, will be made by the flexible stylus, the power of the microcomputer and the front panel controls. but the paper will move a small amountbefore the next revolution. Should you require extra help, Each mark will blend into the one please phone our Customer Service Department toll free at so that a composite picbefore, 1-800-331-3889. (Oklahoma resiture" of the target will be made, dents call collect - 1-918-437one tiny mark at a time. features that Due to the many 6881). A service representative will be happy to help you. this unit has, we have split the section of this manual operation into two sections. The first section, II INSTALLATION - Section Ill, is entitled Basic OpMounting -- The depth sounder may be ineration" and covers everything that is absolutely necessary to use the stalled in any convenient area, provided the unit can be tilted for X-15 is a wide variety of situahow to use the the best viewing angle. Four holes tions. It will tell you in the bracket base allow wood basic controls -- Sensitivity, Supscrew or bolt mounting. A wood Grayline, pressor, Paper Speed, stiffenermay be required on the Range, plus a few special Output Power: 1600 watts typical peak-to-peak. (200 watts RMS) Weight: 8.5 lb. (3.9 Kg) Dimension: With Gimbal Mount: Width - 12¼" Height - 8%" Depth - 5¼" Instrument Only: Width - 91/2" Height - 7½" Depth - 5¼" NOTICE Periodically wash the Transducer Face with soap and water to remove any oil film that may collect Oil and dirt on the face 3 22 PDF compression, OCR, web-optimization with CVISION's PdfCompressor back of thin fiberglass panels to supportthe X-15. If the desired location is closer ply store. Splices should be soldered. If this can't be done, use with electrical tape. An in-line fuse holder with fuse is supplied with the X-15. Be certain to install this fuse holder as close to the power source as possible. This will protect both the sonar unit and the power cable in the event a short occurs. Crimp connectors are supplied to attach the fuse holderto the power cable. The red or white wire in the power cable is the positive conductor. The black wire is the crimp-type splices. Tape all splices of the micro-computer, simply To return the unit to the control than 18" to a magnetic compass, a trial run should be made with the unit in operation to be sure that the compassreadings are not affected. press 0 and then the LINES and SCALES keys at the same time. This will revertthe unit back to normal operation. Example: Set the initial transmitter pulse width tolOO micro-seconds. Press: 1,0, 0, then SCALES and LINES together Result: Figure 42 Example: Set the initial transmitter pulse width to5O gs. Press:5, 0, then SCALES and LINES together. Result: Figure 43 'ii. Figure 3 _________________ A' '·.· 'Ii A Ii · BE SURE to insert the two rubber grommets on gimbal bracket. The larger side (larger diameter) of grommet goes on inside of gimbal bracket so that it is sandwiched between gimbal bracket and sonar instrument (see drawings). The grommets provide friction to hold the unit at the desired angle. Power Connections -- Twelve volt DC power for the depth soundershould be supplied by the boat's 12-volt electrical system. The power cable may be attached to an accessoryor power buss, but if you have problems with electrical interference, the cable should be attached directly to the battery. If a longer cable is required, use ordinary#18 lamp cord available at any hardware or electronicsup- ground conductor The graph is protected from accidental polarity reversals and no damage will occur if the wires are reversed. The unit will not operate, however, until the proper polarity is applied. I :\' A': '. ' I S 'I I, Transducer Selection Lowrance offers you the choice of transducers with either an 8 degree cone angle or 20 degree cone angle that will interchange with any of our 192 kHz sonar units. In other words, any Lowrance sonar instrument can be used with any Lowrance transducer of the same frequency without retuning of any kind, and no loss of performance. However, the use of any other manufacturer's transducer will result in a loss of performance. Now you can select the trans- Figure 42 H I b 8 Ground (Negative) B Qosci Iii U Figure 4 4 Figure 43 21 PDF compression, OCR, web-optimization with CVISION's PdfCompressor example, with the LOWER LIMIT set to 260 feet, the initial transmit pulse width would be 260 is. If the LOWER LIMIT is set to 390 feet, the initial transmit pulse would be 390 jts. Finally, from 600 feet and below, the initial pulse width remains at 600 micro-seconds. The transmitter pulse width can be increased from the initial point at any time by rotating the Suppressor control clockwise. The maximum amount of pulse width added to the initial transmitter pulse width is approximately 800 microseconds. In other words, if the LOWER LIMIT is set to 420 feet, and the Suppressor control is rotated to the maximum position, the transmitter pulse width would be 1220 micro-seconds. (420 initial + 800 = 1220.) Earlier, we talked about the relationship between pulse width and targetseparation. As pulse width increases, target separation or resolution is degraded. However, if the pulse width is decreased, resolution becomes much better. The X-15 allows you to take advantage of this fact by making it possible to override the initial transmitter pulse width setting from what the micro-computer selects according to the Lower Limit. After setting the initial transmitter pulse width, the suppressor control can still be used to cancel out noise by increasing the pulse width. The initi?l transmitter pulse to width can beset from 30 2000 ps by entering it on the keyboard as shown below. By setting the initial transmitter pulse width to 100 Its, a three-inch resolution can be obtain ...