Skipper DL850 - NAUT Rules

Edition: 2017-09-25
Page 89 of 92
Chapter: 13. Appendix 4. Non wheelmark approved S version
Screen status, Menu 7, (3 beeps)
Softkey Name Range/
value
Default
value
Description Activate with
hidden button
1 MENU 1 -8 7
2 SIGN. GOOD 6- 90 % 50 % Min. sample % to be qualied as good. Yes (1 beep)
3 SIGN. SUSP(ECTED) 5 - 89 % 25 % Min. sample % to be qualied as suspected. Yes (1 beep)
4 Not used Not used
5 RESET FACTORY Reset Reset of log settings without reset of calibra-
tion and I/O settings. (Alternative to Master
reset)
Yes (1 beep)
6 NAUT RULES OFF/ON OFF Set area in water were STW is measured.
OFF: 1-9ms (Within 15m from sensor depend-
ing on bottom depth.)
ON: 1-2ms (within 3m distance from sensor)
Yes (3 beeps)
NAUT rules
The DL850 will, by default, measure the “speed through water” (STW) from doppler eect in water
particles in a distance 1 to 15 meters away from sensor. This is depending of depth as area will decrease to
avoid bottom signal in shallow water.
The DNV rules for ships NAUT rules says STW is to be measured in a distance 1 to 3 meters away from
sensor at all times.
Operation and Installation DL850 270 kHz
SKIPPER Electronics AS