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Thank you for choosing Teleflex Sonar, manufactured by Techsonic
Industries, for your sonar fishfinder and depthsounder. Techsonic has built
its reputation by designing and manufacturing top-quality, thoroughly
reliable marine equipment. Techsonic has designed your Teleflex Sonar
unit to be trouble free even in the harshest marine environments.

In the unlikely event that your Teleflex Sonar product does require repairs,
Techsonic offers an exclusive Service Guarantee - free of charge during
the first year after purchase, and available at a reasonable rate after the
one-year period. Complete details are included at the end of this manual.

We encourage you to read this operations manual carefully in order to
get full benefit from all the features and uses of your Teleflex Sonar
product. Also, to register your purchase and help us learn more about
you, please fill out the included warranty registration card

WARNING! This device should not be used as a navigational aid to
prevent collision, grounding, boat damage, or personal injury.
When the boat is moving, water depth may change too quickly to
allow time for you to react. Always operate the boat at very slow
speeds if you suspect shallow water or submerged objects.

THANK YOU

WARNING:

Dis-assembly and repair of this electronic unit should only be performed by authorized

service personnel. Any modification of the serial number or attempt to repair the original equipment or
accessories by unauthorized individuals will void the warranty. Handling and/or opening this unit may result
in exposure to lead, in the form of solder.

WARNING:

This product contains lead, a chemical known to the State of California to

cause cancer and birth defects and other reproductive harm.

Summary of Contents for TFX320

Page 1: ...Operations Manual...

Page 2: ...your Teleflex Sonar product Also to register your purchase and help us learn more about you please fill out the included warranty registration card WARNING This device should not be used as a navigat...

Page 3: ...Real Time Sonar Window 6 Chart Window 8 Modes of Operation 10 Automatic Mode 10 Bottom Lock Zoom Mode 12 Manual Mode 13 Control Panels 15 Section 2 MAINTENANCE AND WARRANTY 21 Maintenance 21 Troublesh...

Page 4: ...ish or structure reflects the sonar uniquely providing information about its makeup The 320 draws this returned information on the display The 320 features a sophisticated Dual Beam sonar system using...

Page 5: ...can be changed to experiment with various features When operating in Simulator an indicator appears at the bottom left of the display There are two ways to start the simulator The method to use depend...

Page 6: ...gain sometimes called sensitivity of the sonar receiver GAIN also powers the unit on or off When the 320 is off press GAIN to turn the unit on Press and hold GAIN to turn the unit off Increasing the...

Page 7: ...ion for specific information In all cases turning the knob clockwise increases the range while turning it counterclockwise decreases the range Turning the knob slowly increases the adjustment in small...

Page 8: ...y to see format the Chart Window logs old RTS Window information to show a contour view of the bottom and structure REAL TIME SONAR WINDOW The Real Time Sonar RTS window shows instantaneous sonar retu...

Page 9: ...below Structure appears above the bottom as a cluster of lines with varying lengths and gray shades Fish appear as smaller groupings of sonar returns between the bottom and surface Often large fish wi...

Page 10: ...rance Bottoms having a large degree of slope also present a unique picture These generally have a thicker black band representing the bottom directly under the boat Equal areas of gray above and below...

Page 11: ...ll as individual fish are clearly visible on the 320 display Bait fish appear as clouds having different shapes and sizes depending on the number of fish and boat speed Individual fish appear as small...

Page 12: ...to keep recent sonar returns visible however the depth range can be adjusted to optimize the display for viewing the second return The display can also be optimized for maximum display resolution mak...

Page 13: ...gain Turning the Range Knob clockwise will allow the displaying of the second return and not return the depth range to the correct depth range for the current depth To optimize the depth range for vie...

Page 14: ...320 automatically keeps the bottom visible in the zoomed window and the full range view In the full range view horizontal zoom preview bars define the area of bottom being enlarged The default settin...

Page 15: ...the user Both the upper and lower depth ranges can be adjusted to show the bottom in great detail or any other desired depth When first switched to manual mode the 320 defaults to the current automat...

Page 16: ...as the changes are made After several seconds without pressing or turning the knob the depth range adjustment indicator disappears from the screen The 320 does not make adjustments to keep the bottom...

Page 17: ...the complete range of adjustment and the Setting Readout shows the status when control panel is not selected To select a control panel for adjustment follow these steps 1 Press the control panel knob...

Page 18: ...often preferred The Chart Speed setting is retained in memory when the 320 is turned off The factory setting is 6 LIGHT activates the display back light and selects the brightness level The light is...

Page 19: ...when the 320 is turned off The factory setting is 2 SURFACE CLUTTER eliminates most sonar returns near the water surface caused by trapped air boat wakes and temperature inversions Most surface clutt...

Page 20: ...aller numeric setting narrows the band and shows greater variation in bottom composition Selecting OFF turns the White Line feature off DEPTH ALARM activates a shallow water depth alarm The alarm will...

Page 21: ...displays the speed in nautical miles per hours MPH displays the speed in miles per hour On international versions of the 320 Units selects the units of measure for boat speed and depth in one of four...

Page 22: ...take some time to wet the transducer when returned to the water Small air bubbles can cling to the surface of the transducer and interfere with proper operation These bubbles dissipate with time or yo...

Page 23: ...ure the cables are properly installed into the collector plug and the collector plug is properly seated into the 320 2 The Unit Starts up in simulator mode The 320 has the ability to detect that a tra...

Page 24: ...nd try again If none of these items identifies an obvious problem the transducer itself may be the problem Be sure to include the transducer if returning the unit for repair 4 When in very shallow wat...

Page 25: ...en 9 The display shows many black dots at high speeds and high sensitivity settings You are seeing noise or interference caused by one of several sources Noise can be caused by other electronic device...

Page 26: ...is responsible for shipping charges to Teleflex Teleflex will provide ground UPS or Parcel Post shipping back to the customer free of charge This warranty applies to the original purchaser only This...

Page 27: ...n three working days from the receipt of your unit This does not include shipping time to and from our factory Units received on Friday are usually shipped by Wednesday units received Monday are usual...

Page 28: ...S and Canada hours are Monday Friday 8 15 a m to 5 00 p m Central time If after reading Troubleshooting you determine your unit needs factory service please attach a description of the problem and se...

Page 29: ...eak Area of Coverage 20 at 3 db 14 at 3 db Power Requirement 10 20 VDC Display 16 level FSTN Grayscale LCD LCD Matrix 240 H x 320 V Viewing Area 3 H x 4 V Mounting Gimbal Unit Size 8 V x 8 W x 2 D Tra...

Page 30: ...531065 1...

Page 31: ...A Division of Teleflex Marine...

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