JRC JLN-550 -, Instruction Manual

Page: 26 / 60

16 4. Operation
Vessel Speed Unit
1) Press UNIT switch to turn alternately [kts] or [m/s]
for the vessel speed unit.
1 [m/s] = (1852m ÷ 3600Sec) × 1 [kts]
Operating Mode
1) Press MODE switch to change operating mode.
2) Each time you press MODE , the unit can be setting
in fore operating mode.
Operating mode
AUTO
→
BT
→
WT
→
GPS
↑ ↓
AUTO: Ground speed(BT) or water speed(WT) automatic switching
BT: Forced ground speed(BT: Bottom Tracking)
WT: Forced water speed(WT: Water Tracking)
GPS: Fore/Aft. Port/Stb. Speed based upon data from the GPS
navigator is displayed.
In AUTO mode, Ground speed (BT) read preferentially..
Speed measurement depth is as follows:
Ground tracking (BT): 2m to 250m below hull bottom.
Water tracking (WT): Aprox. 3m below hull bottom.
(Above figures will changed depending on installation conditions and
surrounding water conditions and the hardness of bottom.)
UNIT
MODE