Explorer D310 Depth Instrument Installation and Operation Manual www.northstarnav.
IMPORTANT SAFETY INFORMATION Please read carefully before installation and use. This is the safety alert symbol. It is used to alert you to potential personal injury hazards, Obey all safety messages that follow this symbol to avoidpossible 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.
Contents 1 Introduction...........................................................................................................................................4 2 Operation...............................................................................................................................................4 2-1 Turn on and off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Introduction The Explorer D310 measures and displays the depth of the water. An installed Explorer D310 usually has two parts: water. When the pulse meets the bottom, some of the pulse is reflected back up towards the boat and is received by the transducer. The display unit. A depth transducer, which is attached to the hull and wired to the display unit. The display unit analyses the reflections from each pulse.
Set backlight for screen and keys 2-3 Alarms You can set the backlight to one of four brightness levels or off. Press once to display the current backlight level, press again to change the level: Backlight level 2 The Explorer D310 can be set to sound an alarm when the water is too deep or too shallow (see sections 3-2 and 3-3). When the alarm sounds, the internal beeper sounds, the symbol on the display flashes and any external beepers or lights operate. Press to mute the alarm.
3 Depth, keel offset, too deep alarm, too shallow alarm Depth and keel offset The displayed depth is the distance from the transducer on the boat to the bottom of the water, plus or minus an offset which is called the keel offset: A positive keel offset displays depth as measured from a point above the transducer. For example, if you set the offset to the distance from the transducer to the surface, it will display the depth from the surface to the bottom of the water.
3-4 Anchor watch To set an anchor watch, set the too shallow alarm to slightly less than the current depth and set the too deep alarm to slightly more than the current depth. Allow for tide changes. Keel offset (negative) 3-5 Set keel offset Keel offset is described above. The range is ± 2.9 m (± 9.6 ft, ± 1.6 fathoms): 1 Press + 2 Press or 3 Press to display the Keel Offset screen. to change the keel offset. .
5 Explorer D310 hardware 5-1 What comes with your Explorer D310 The Explorer D310 comes in several configurations. Standalone configuration Explorer D310 unit with protective cover. Warranty card. Mounting template. This Installation and Operation manual. In addition, the standalone configuration usually requires a depth transducer (see section 5-3).
6 Installation and setup Correct installation is critical to the performance of the unit. It is vital to read this section of the manual and the documentation that comes with the other parts before starting installation. The Explorer D310 can: Drive external beepers or lights for the alarm. ! CAUTION Send and receive data from other Northstar instruments connected via NavBus. Settings for alarms, units, calibration and backlighting are ! WARNING shared (see section 4-1).
Power/data wiring 6-2 Set up 1 Wire the display unit power/data cable: The unit requires 12 V DC power. Fit a power switch and fuse to the power supply or power the unit from a fused auxiliary switch. The fuse should be 1 A for up to five instruments. If the external beepers and lights require more than 250 mA DC total, fit a relay. 1 Take the boat for a trial run to check that all the instruments work correctly.
Appendix A - Specifications Physical Case size 111 mm (4.4”) square. LCD display 82 mm (3.2”) wide, 61 mm (2.4”) high; twisted nematic. LCD digits 38 mm (1.4”) high. Four operator keys, laser etched. Backlighting for display and keys, amber, four levels and off. Operating temperature 0 to 50°C (32 to 122°F). Transducer cable length 8 or 9 metres (26.25 or 29.5 ft). Power Cable length 1 m (3.25 ft). Electrical Power supply 10.5 to 16.
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