JD-5M Marine Velocity Log

The log is used to continuously measure the relative speed of movement between the ship and the water, calculate the cumulative voyage of the ship, and provide the ship’s speed and voyage information.
1. Speed measurement error: ±0.2 knots, with an incremental level of 0.1 knots;
2. Speed measurement range: -10-+40 knots;
3. Driving distance error: ±0.2%;
4. Driving distance working range: 0-9999.99 nautical miles;
5. Accuracy of speed and distance repeat display: synchronous;
6. Interface form:
a. Contact closed circuit: 200 pulses/nautical mile (active and passive)
b. Serial port: in line with the international standard NMEA0183
Speed: $VMVHW,,,,,xx.xx,N,*hh
The baud rate is 4800, broadcast transmission, 1 time/S
7. RS-485 to VDR interface can be provided
8. Size: 230*155*150 (mm)
9. Installation location: cab