SAL R1a Easy Tank User Manual No. 703852
703852A04, SIMRAD SAL R1a Easy Tank User Manual.docx 10 (25)
Serial Digital Display SD4-3 for STW (WT) indication
3.2 Daily use of SAL R1a
The SD4-3 display is configured especially for the water tracking speed log SAL R1a.
The display has an upper window showing the longitudinal Speed Through the Water,
STW, ahead or astern. The upward pointing arrow LED is lit when the speed is ahead
and the downward pointing arrow LED is lit when the speed is astern.
The lower Mode window shows as default the distance the ship has sailed, in nautical
miles, either total indicated as DIST WAT or since latest reset of the trip counter
indicated as TRIP WAT. Note: Only ahead motion is added to these distance counters.
Use the Trip/DIST button to toggle the Mode window between showing trip distance
TRIP WAT and total distance DIST WAT.
Use the Reset Trip button to zero the trip counter by pressing longer than 2 seconds.
To adjust/DIM the display brightness, use plus (+) button to increase and minus (-)
button to decrease. Both buttons pressed simultaneously presents a complete display
lamp/LED test.
3.3 Alert messages
The Alert mode indication is intended for service purpose and trouble shooting of the
SAL speed log system. A list of Alert codes can be found in the Trouble Shooting Guide
in this manual.
The Alert mode is enabled as default in menu LP2.21. In this mode, proprietary $PSALW
NMEA messages will be translated and displayed as Alerts on the SD4 mode window.
SD4 Displays, with the Alert mode enabled, will light the LED above the Mode button
when the SD4 Display receives active Alert messages.
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