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Model: JLN-550 3 axis with transducer and gate valve

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JRC JLN-550 3 Axis Doppler Speed Log, with Transducer,Gate Valve

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JRC JLN-550 3 Axis Doppler Speed Log, with Transducer,Gate Valve

JRC JLN-550 3 Axis with Transducer and Gate Valve
The JLN-550 Doppler Sonar providing ship speed information has higher stability in the dual frequency modes, and smaller size dual-frequency transducer to be easy installation and maintenance. The dual frequency mode function will be superior in measuring of the ship's speed against the ground up to larger depths and also the water with tiny bubbles

The JLN-550 Doppler Sonar providing ship speed information has higher stability in the dual frequency modes, and smaller size dual-frequency transducer to be easy installation and maintenance. The dual frequency mode function will be superior in measuring of the ship's speed against the ground up to larger depths and also the water with tiny bubbles

Stable Speed Display in Dual Frequency Modes

♦	Ship speed measurement is insensible to bubbles generated in high-speed navigation, ensuring stable speed display.

♦	The transducer is substantially downsized, allowing it to be installed on the bow side that is little affected by bubbles.

♦	An underwater-mateable connector is adopted for the transducer, so that a transducer can be replaced at a quay even in case of its failure.

♦	The equipment is provided with an additional function of indicating the ship's fore and aft speeds and port and starboard speeds by entering GPS information.

♦	The ship's port and starboard speeds at its arbitrary position can be indicated by entering ROT information.

♦	An optimal Doppler sonar system can be configured by combining a variety of options.

♦	On-line maintenance (option)allows any failure to be detected during navigation.

Specifications

Operating system	2- axis 4-beam pulse Doppler sonar or ROT-combined 3-axis 4-beam pulse Doppler sonar (ROT:option)
Operating frequencies	240kHz (BT : for speed against the ground) 2MHz (WT : for speed against the water)
Speed range	BT Fore/Aft : -10.00 to +40.00 kts Port/Stb.: -9.99 to +9.99 kts Stern P/S : 9.99 to +9.99 kts (with optional ROT) WT Fore/Aft : -10.00 to +40.00 kts
Distance run range	0 to 99999.99nm
Depth range	BT : 2 to 250m (below hull bottom)depending upon sea bottom conditions WT : 3m or more (below hull bottom)
Speed measuring accuracy	±1% or 0.1 kts whichever is greater
Total distance run accuracy	±1% or 0.1 nm whichever is greater
Ship speed indication	XX.XX 4-digit indicator (in kts or m/s)(P/S:3-digit) Analog indication (in kts)
IEC61162-1 inputs (NMEA0183)	ROT (Stern P/S speed)**ROT (excl.GPROT) GPS (GPS ship speed)GGA,RMC,RMA,GLL,VTG GYRO (GPS ship speed)HDT,HDG
Data outputs	IEC61162-1 : 2000 outputs : 5 circuits VBW,VLW,DPT,DBT DC voltage output : 2 circuits (for analog indicator) Opto coupler signal : 8 circuits (200 pulses/nm) Relay closure signal : 1 circuit (200 pulses/nm) Relay closure signal : 1 circuit (Power fail alarm)
Power supply	100 / 110 / 115 / 220 / 230VAC ±10%, 50 / 60Hz, single-phase
Power consumption	300VA or less
Operating temperature	-15deg.C to +55deg.C

Standard Components

Description	Model	Quantity	Remarks
Main Display	NWW-60DB	1	DB:2-axis flush mount type (standard) DA:2-axis wall mount type TB:3-axis flush mount type TA : 3-axis wall mount type
Signal Distributor	NQA-3012	1
Signal Processor	NJC-24	1	IP55
Transducer	NKF-770	1	With underwater-mateable connector and max.40m cable
Spare Parts	7ZXBS0018	1
Instruction Manual	7ZPBS2802	1	English

Options

Component	Model	Quantity	Remarks
Wing Display	NWW-61D	2	D: 2-axis, IP56 T: 3-axis
Remote Display	NWW-24	2 max.	Analog Flush-mount type
Remote Display	NWW-25	1	Analog wall mount type
Remote Display	NWW-26	1	Analog Flush-mount type
Distance Counter	NWW-7B	1	Flush-mount type
Gyro Sensor	NJZ-1080	1	ROT
Operator Unit	NWZ-120GA	1	ROT, GA : Wall-mount type GB : Flush-mount type
Rectifier	NBA-3263	1	ROT
Dimmer Unit	NCM-227	1	For NWW-60 Main Display Unit
Dimmer Unit	NCM-329H	1	For NWW-24 / 25 / 26 Remote Display Unit
Transducer	NKF-770W	1	Inner demountable type
Transducer	NKF-772	1	Gate valve type

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