User manual NORTHSTAR NS3100 MULTI INSTRUMENT REFERENCE GUIDE

[. . . ] 00 M U LTI N S 31 Reference Manual and Installation Manual FCC Statement Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a normal installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. [. . . ] Allow for tide changes. 5-5 Set keel offset Keel offset is described above. The range is ± 2. 9 m (± 9. 6 ft, ± 1. 6 fathoms): 1 Press + several times until the Keel Offset screen is displayed: or to change the keel offset. 2 Press 3 Press . Keel offset (negative) Reference Manual and Installation Manual 13 6 Temperature Temperature is measured by a sensor in the speed transducer. 6-1 Set temperature units The units can be either °C or °F: Press until the temperature is displayed, then hold until the units change. 6-2 Calibrate temperature The unit is factory calibrated and should not normally need calibrating. To calibrate: 1 Measure the water temperature near the speed transducer. 2 Press + several times until the Temperature Calibration screen is displayed. Water temperature 3 Press or to change the temperature to the value measured in step 1 above. 4 Press . 14 Northstar NS3100 MULTI 7 Countdown timer You can adjust the countdown timer to start counting down between one and ten minutes, in increments of one minute. The factory default start time is 10 minutes. When the timer is counting down, the countdown timer symbol flashes and the time remaining is displayed in minutes and seconds: The beeper sounds and any external beepers or lights operate: Four beeps at four minutes to go. Ten beeps at the end; the last beep is longer and marks the end of the countdown. In each case, the end of the last beep marks the exact minute. Timer counting down Countdown timer symbol flashes 7-1 Start countdown timer The timer starts at the start time (to adjust the start time, see section 7-3). 1 Press until the countdown timer is displayed. The timer displays On briefly and starts counting down from the start time. 7-2 Stop and reset countdown timer 1 Press until the countdown timer is displayed. The timer stops and the time resets to the start time (see section 7-3). 7-3 Adjust start time 1 Press + several times until the Countdown Timer Start Time screen is displayed: 2 Press or to set the start time in minutes. The timer does not start now (to start the timer, see section 7-1). 7-3 Adjust start time Timer start time is 9 min Reference Manual and Installation Manual 15 8 Systems of several instruments Several Northstar instruments can be connected together during installation to share data. There are two ways of connecting instruments together, NavBus or NMEA. 8-1 NMEA NMEA is an industry standard. Speed, depth, temperature and log data may be output which can be read and displayed by any compatible Northstar (eg. NS3100 Multi Depth) or other NMEA instrument. Speed (RMC) can be received via NMEA and displayed by the NS3100 Multi (see section 10-1 for wiring). If an external RMC (speed) input is available from a GPS instrument, then you can set up the NS3100 Multi to use this for speed readings (see section 10-2, step 2); Note: A speed from a paddlewheel sensor is the speed that the boat is moving through the water. A speed from a GPS is the speed over the ground. If there is a current then these two speeds will be different. If a transducer is not fitted to the unit and the corresponding external data is not available then the displayed value will be 0 (for example, when using a GPS input for speed and no speed/ temperature transducer is fitted then temperature displays as 0). 8-2 NavBus NavBus is a Northstar proprietary system. It is high speed and allows a wide range of data to be shared by the instruments. [. . . ] Repairs to the unit must only be carried out by a service centre approved by Northstar. Users who service the unit themselves will void the warranty. More information can be found on our Website: www. NorthstarNav. com 1 Unit will not turn on: a Fuse blown or circuit breaker tripped. b Battery voltage is outside the range 10. 5 to 16. 5 V DC. [. . . ]