User manual NORTHSTAR EXPLORER 443S

[. . . ] Explorer 443s/443sp Fishfinder Installation and Operation Manual www. northstarnav. com IMPORTANT SAFETY INFORMATION Please read carefully before installation and use. DANGER !It is used to alert you to potential personal injury hazards, Obey all safety messages that follow this symbol to avoid possible injury or death. WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury CAUTION indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in property damage. WARNING CAUTION CAUTION DISCLAIMER: It is the owner's sole responsibility to install and use the instrument and transducers in a manner that will not cause accidents, personal injury or property damage. [. . . ] Conversely, a soft bottom produces medium or weak echoes, which are shown by a narrower trace. This usually flashes on and off as the ultrasonic pulse strikes the fish. bottom) Shading Bar 14 Northstar Explorer 443s/443sp Installation and Operation Manual Manual Gain When Manual Gain is selected, increasing the gain setting will result in more detail being shown on the fishfinder display. See `Changing the Gain Mode' in section 3-2 for more information on changing Gain settings. Gain setting These echoes will be shown in grey on the Fish History section. These strong echoes will be shown in black on the Fish History section. The weak echoes within this white section of the shading bar will not be shown - they are below the threshold of where the shading begins. Increasing Gain by pressing + will move the edge of the light grey bar to the left and result in weaker echoes being displayed in the Fish History section. Pressing - will move the edge of the grey bar to the right. 3-6 NAVIGATE screen Select MAIN MENU - NAVIGATE to display the NAVIGATE screen. The NAVIGATE screen displays useful information while travelling at speed. It prominently displays the water depth, the boat speed, the bottom profile and any alarms that are enabled. Use the SETUP - UNITS - DEPTH TIP: Use the < key to immediately return to the fish finder screens. Speed (443sp ONLY) can be displayed in knots (KN), miles per hour (MPH), or kilometres per hour (KPH). Use the SETUP - UNITS - SPEED menu to select the desired speed units (see section 4-2). Northstar Explorer 443s/443sp Installation and Operation Manual 15 3-7 DATA screen Select MAIN MENU - DATA to display the DATA screen: Temperature The temperature can be displayed in °F (Fahrenheit) or °C (Celsius). Use the SETUP - UNITS - TEMPERATURE menu to select the desired temperature units (see section 4-2). Alarms that indicate a specific temperature, or rate of change of temperature, may be enabled (see section 4-1). Log (443sp ONLY) One of two distance logs can be displayed: Trip Log or Total Log. Both logs are retained in the Explorer 443s/443sp memory when the unit is switched off. Use the SETUP - LOG menu to select the Trip Log or Total Log (see section 4-6). to record total mileage during a season, or the distance travelled on this trip). Note: That the units displayed on each Log will correspond with the Speed. Speed (443sp ONLY) can be displayed in knots (KN), miles per hour (MPH), or kilometres per hour (KPH). Use the SETUP - UNITS - SPEED menu to select the desired speed units (see section 4-2). Temperature Graph Battery Log Engine hours Speed Enabled alarms Depth A graph displays the surface water temperature for the last 40 minutes and is updated every 30 seconds. [. . . ] This depth is measured from the transducer and does not allow for any keel offset setting. d) Manual Gain may be set too low, which may cause weak bottom echo, or no fish signals. e) Ensure the back of the bottom surface of the transducer is slightly lower than the front and the front is as deep in the water as possible in order to minimise the generation of bubbles through cavitation. (See the Transducer Installation Guide for more information). d) Inspect the power cable from end to end for damage such as cuts, breaks or squashed sections. 28 Northstar Explorer 443s/443sp Installation and Operation Manual f) Check the transducer and power cable LT connectors at the back of the display unit are securely plugged in and the collar is locked in place. [. . . ]