User manual JRC JLN-628 BROCHURE

[. . . ] DOPPLER CURRENTMETER Specifications Tidal current Current speed : 0 -- 9. 9 kt Current direction : 360 , numeric and Rhumb (32 compass points) display Measured layer : Absolute three layers, relative two layers (three layers can be measured in relative current mode) Measured depth : 2 -- 100m or more(70% or less of the depth) (Note)The measured depth may vary depending on sea conditions. [. . . ] *2 Water temperature data input is required. Quick Decision Based On Reliable Source Of Information You can upgrade the JLN-628 to acquire more functions and display more information by connecting your other JRC and optional products. Options Features A. Absolute current display relative to GPS ship speed Where the sea is too deep to measure the ground speed relative to the sea bottom, you can display the absolute current relative to the ship speed by connecting a GPS navigation system. When the ground speed relative to the sea bottom can be measured, the ground speed obtained from the doppler effect is used, and when the ground speed relative to the sea bottom cannot be measured, the referrence switched ship speed is automatically to GPS. B. Stabilizing Data It is necessary to connect a heading sensor (gyro compass or electronic compass) to stabilize the current direction on the disply. 1. Four-directional Fish Echoes Multi-display CRT You can view fish echoes in four-directional, two-directional ahead, or in any one-directional mode. Just as in an ordinary fishfinder, you can suit the display to the fish type or sea conditions by abjusting the sensitivity. 3. Simultaneous Display of Current Directions and Ship Speed Three layers (top, middle, bottom) of absolute tidal currents can be displayed at the same time. You can select the depth of each layer. The relative current (relative to the C layer (lowest layer)) and the absolute current (relative to the sea bottom) can be displayed at the same time. [. . . ] 25m cable No. Component Hull-bottom installation materials Hull-bottom installation materials LCD bracket Sun shade Model NFK-765 NFK-766T MPBX 42944 MPOL 30369 1 2 3 4 Quantity 1 kit 1 kit 1 kit 1 kit Mass 27kg 95kg Remarks For wooden or FRP hull bottom For iron hull bottom [. . . ]