The new Speed Log System SATLOG SLS 4120 measures Speed Over Ground (SOG), referenced to the ship’s axes, by using the input from a gyro compass. With a precision of greater than 0.2 knots or 2 % of speed. This accuracy is compliant with the IMO performance standard for Speed and Distance Measuring Devices (SDME) IEC 61023 and allows the SATLOG SLS 4120 to be used as a speed log for ground stabilising applications or docking manoeuvres. Interfaces between the Display Unit, Electronic Unit and DGPS Sensor comply with IEC 61162.

Together with an EM-Log or other log sensor measuring the Speed Through Water (STW), the SATLOG SLS 4120
becomes a central display for speed related information such as Speed Through Water and Speed Over Ground, as well as distances travelled.

Applications

World wide precise speed determination without differential signals
High adaptive double-end ferry mode
Supporting of docking manoeuvres by calculating also the rate of turn and transversal speed at stern by interfacing a gyro compass
Measurement of Speed Over Ground in the longitudinal and transversal ship direction

Standard Features

Standard speed accuracy of 0.2 knots
Speed accuracy of 0.1 knots in differential mode
Multitrack Differential Beacon Receiver
Comfortable configuration, maintenance and update of the SLS 4120 via the integrated web interface using a web browser
Ready for remote maintenance due to the Ethernet interface
Integrated 24V DC power supply for external components

SATLOG SLS 4120 Brochure (364 KB)