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Speed log

Stable and highly accurate measurement

Features

The JLN-205Mk2 is a stable and highly accurate measurement tool to ensure stable speed data utilizing high frequencies ultrasonic waves.

Dual color LED backlight

The JRC MID incorporates many display modes readily available on a highly visible 4.5-inch LCD display. Besides the display being fully dimmable and having backlit keys, it features dual LED backlight (white and orange), making it easy to operate in various light settings on the bridge.

Clear view

Multiple display modes are available from the menu with main data displayed in large characters for easy reading. You can easily switch at your own convenience, particularly useful when a situation requires specific information.

Transducer

The transducer is compact and constructed of light weight moulded rubber, to minimize the effects on aeration, which allows stable and accurate operation.

Gate valve

Using an optional gate valve transducer allows for long-term cost saving and easy maintenance as dry docking is not necessary.

Error free

An ultrasonic beam is transmitted in fore and aft directions. At the same time, the hull motions such as rolling and pitching are detected and removed by simply measuring the difference of the Doppler shift reception signal, ensuring accurate and stable speed data, even in the roughest conditions.

Uniform operation

In keeping with the company’s philosophy of an easy to use Man Machine Interface, the new generation displays have allowed JRC’s engineers to develop an exciting new software approach for uniform operation.

Flexible data and dimmer share

The display of the JLN-205Mk2 can be purchased separately as Multi Info Display (MID). It allows full NMEA0183 data share for up to 10 displays and can be flexibily installed. The same applies for dimmer share. By changing the intensity on one of the units, it automatically shares the new settings to the other displays. Sample:

In this sample, the display with ID4 receives data (RS-422) from signal distributor and outputs vessel speed data (RS-485) to all connected display. Dimmer share has been separated in two groups, whereas group 1 can be operated by external dimmer and group 2 is linked pressing the button on the display.

Signal processor

This speed log incorporates a highly reliable interfacing field. You can easily connect a wide range of additional equipment to optimize your configuration. A second display, smaller remote displays and analogue indicators are just a few of the possibilities. The JLN-205Mk2 can also output the measurement information to radar and ecdis.

Signal distributor

The transducer room has a quite bad environment with regard to vibration and humidity, therefore, before signal is distributed to various equipment, the transducer is directly connected to the processor, minimizing loss of signal and extending cable length to hundreds of meters.

No flush mount kit

With JRC's new design approach, a flush mount kit is not required and screws are nicely concealed behind the front cover.

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