Specifications - Furuno DS-80 Operator's Manual

SPECIFICATIONS OF THE DOPPLER SPEED LOG
1. GENERAL
(1) Speed Range
(2) Distance Run
(3) Working Depth
(4) Working Frequency
(5) Speed Accuracy
(6) Distance Accuracy
Note: Accuracy is subject to shallow water effects, to the effect of wind, current and tide, and
sensor location. Any ultrasonic equipment having the same frequency may interfere with
speed measurement. The Doppler Log transducer should be installed apart from the
transducers of such kind of equipment.
2. DISPLAY UNIT
(1) Display
(2) Indication
Ship's speed
Distance run
(3) Other Function
3. DIGITAL INTERFACE
(1) Serial Signal
Output:
Input:
(2) Analog Signal
(3) Distance run output
(4) System Check signal
DS-80
Fore-Aft: -10.0 to +40 knots through-the-water
0.00 to 999,999.99 nautical miles through-the-water
Water depth greater than 3 m beneath the keel.
1.0 MHz
1.0% or 0.1 knots whichever is the greater
1.0% or 0.1 nm whichever is the greater
Character size 15 or 21 mm H on monochrome LCD
Fore: **.* knots (+40.0 kt max.)
Aft: **.* knots (-10.0 kt max.)
******.** nm
Diagnostic check
2 ports; VBW, VLW in IEC 61162-1 (NMEA 0183 Ver 2.0)
1 port; IEC 61162 (NMEA 0183 Ver 2.0)
Speed signal for Analog display: 2 port
-3.3 mA to 10 mA/ -10 kt to +30 kt
Analog current output: 1 port
4 mA to 20 mA/ -10 kt to 30 kt
Analog voltage output: 1 port
-3.3 V to 10 V/ -10 kt to 30 kt
2 ports; Contact closure each 0.005 nm, forward speed,
30 VDC: 0.4 A
1 port, 30 VDC: 0.2 A, default: closed
SP - 1