Japan Radio Co. JLN-740A, Инструкция по эксплуатации

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Chapter 13 Specification 13-2
13.1.3. JLN-741A
Water speed measuring system Dual – beam pulse Doppler system
Operation frequency 2 MHz
Fore/after speed measurement scale -10.00 to +40.00 kn
No. of digits displayed Fixed 4 or 3 digits selectable
Minimum digital display unit 0.01 kn or 0.1 kn selectable
Sailing display range 0 to 999999.99NM
Water speed measurable depth 3.0 m deeper than the transducer surface
Ship speed accuracy 1 % of the speed of the ship, or 0.1 kn whichever is
greater
Total distance accuracy 1% of the distance run by the ship in 1h or 0.1
nautical miles in each hour whichever is greater
Power consumption 20 W 30VA (for 100VAC)
20 W 75VA (for 230VAC)
13.1.4. JLN-741N
Water speed measuring system Dual – beam pulse Doppler system
Operation frequency 2 MHz
Fore/after speed measurement scale -10.00 to +40.00 kn
No. of digits displayed Fixed 4 or 3 digits selectable
Minimum digital display unit 0.01 kn or 0.1 kn selectable
Minimum analog display unit Scale: 0.5 kn units
Value: 5.0 kn units
Sailing display range 0 to 99999.99NM
Water speed measurable depth 3.0 m deeper than the transducer surface
Ship speed accuracy 1 % of the speed of the ship, or 0.1 kn whichever is
greater
Total distance accuracy 1% of the distance run by the ship in 1h or 0.1
nautical miles in each hour whichever is greater
Power consumption 20 W 25VA (for 100VAC)
20 W 75VA (for 230VAC)