SKIPPER
Electronics AS
EML224N Operation and Installation Manual
Edition: 2020-02-05
Chapter: 8. Trouble Shooting
Page 54 of 64
EML224 and DL1 sensors are “smart sensors” communicating digitally.
They need 24V power supply and will send up a preprogrammed NMEA sentence with speed and temp info.
The required NMEA sentence is depending on what kind of Display Unit receiving.
An EML224 Graphic Display requires uncalibrated speed in a format called ALMA format. “Fig. 2.7.
Screen Com, Menu 2, sensor” on page 17
The sensor is default set up in factory to ALMA format.
A format command is transmitted from EML224 Graphic display at boot up until required sensor format is
received.
2 way communication with sensor requires sw ver 1.27.23 and triangular RS422 PCB rev 14..
Sensor configuration
Fig. 8.1 NMEA Command to sensor at start up. No signal from sensor
