Appendix A - Specifications - NorthStar NS3100 Multi Instrument Reference Manual

Appendix A - Specifications

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Physical
Case size 111 mm (4.4") square.
LCD display 82 mm (3.2") wide, 61 mm (2.4") high;
twisted nematic.
LCD digits 30 mm (1.2") high on top line, 20 mm
(0.8") high on bottom line.
Four operator keys, laser etched
Backlighting for display and keys, white, 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 to 5 to 16.5 V DC, 30 mA without
backlighting, 200 mA with full backlighting and
transducer.
External beeper or light output, switched to
ground, 30 V DC and 250 mA maximum.
Speed
Displays current speed, average speed, maximum
speed, trim speed.
Range 0 to 50 knots (0 to 58 mph, 0 to 93 km/h).
Display resolution either 0.0 to 19.9, 20 up or
0.00 to 19.99, 20.0 to 29.9, 30 up.
Trim speed displays ± .00 to .99, 1.0 to 9.9, 10 up
Adjustable damping for speed and trim speed
gives stable readings in all sea conditions; values
of 1, 2, 3, 4 & 5 average readings over a time
period of 6, 12, 18, 24 & 30 seconds respectively.
Log
Displays trip log and total log.
Range 0 to 99999 km, miles or nautical miles.
Displays 0.00 to 999.99, 1000.0 to 9999.9, 10000
up.
Depth
Range 0.5 to 130 m (1.5 to 400 ft, 0.3 to 67 fa).
Typical accuracy < 2% (depends on type of depth
transducer, installation and water clarity).
Displays 0.0 to 19.9, 20 up.
Adjustable keel offset ± 2.9 m (± 9.6 ft, ± 1.6 fa)
Too Deep and Too Shallow alarms (run both at
once to provide anchor watch facility).
Temperature
Range 0 to 37.7°C (32 to 99.9°F); typical accuracy
< 2°C.
Resolution 0.1 degree.
Countdown timer
Can be set to between 1 and 10 minutes, in
increments of 1 minute.
Counts down in minutes and seconds.
Calibration
Speed and temperature can be calibrated.
Interfaces
NavBus connection to other Northstar
instruments.
NMEA 0183 outputs: DBT, DPT, PTTKD, PTTKV,
VHW, MTW, VLW; input RMC.
Northstar NS3100 MULTI