Sperry Marine NAVIKNOT 600 SD, Руководство по эксплуатации, установке и обслуживанию

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NAVIKNOT 600 SD 056353/J
Doppler Transducer Calibration 7-7
Two Way Trial Run
Note During a two way trial run, the vessel’s heading during runs A and B
should ideally be parallel to the direction of the effective drift, as the drift
component perpendicular to the heading cannot be compensated for.
To carry out a two way trial run:
1. Bring the vessel on the required course for the approach to run A.
2. Approach the run with the speed (engine rev.s) at which the calibra-
tion is to be carried out. Keep the heading and speed steady.
3. Go to page 2 of the Service Setup and select the Calibration | Two
Way Trial Run sub-menu.
The run clock is shown, indicating 00:00 s run time and the uncali-
brated water speed as received from the preamplifier D.
4. Exactly at the start of run A
(first landmark athwart-
ships or “start” announced
by supervisor), press
ENTER
to start the run clock.
5. Exactly at the end of run A
(second landmark athwart-
ships or “stop” announced
by supervisor), press
ENTER
to stop the run clock.
The display now indicates the run distance, the average uncalibrated
speed for the run, the true speed over ground (calculated from the
run time and distance) and the calculated calibration value.
6. Press
ENTER
to store the run parameters.
The run clock is shown again, indicating 00:00 s run time and the
uncalibrated water speed as received from the preamplifier D.
7. Turn the vessel around and bring it on the required course for the
approach to run B. This is the exact reverse of the course maintained
during run A.
Approach the run with the same speed (engine rev.s) at which run A
was carried out. Keep the heading and speed steady.
8. Exactly at the start of run B
(second landmark athwart-
ships or “start” announced
by supervisor), press
ENTER
to start the run clock.
9. Exactly at the end of run B
(first landmark athwart-
ships or “stop” announced
by supervisor), press
ENTER
to stop the run clock.
SERVICE SETUP Page 2
CALIBRATION
TWO WAY TRIALRUN
00:00
20.2
TIME
SPEED S
KN
00:02:30
20.2
TIME
SPEED S
KN
01.000
20.2
20.0
-0.2
DISTANCE
UNCAL SPEED
TRUE SPEED
CAL VALUE NM
KN
KN
00:00
20.2
TIME
SPEED S
KN
00:02:30
20.2
TIME
SPEED S
KN
01.000
20.2
20.0
-0.2
DISTANCE
UNCAL SPEED
TRUE SPEED
CAL VALUE NM
KN
KN