Simrad NSS evo3, Руководство по установке

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A
B
A
Lowest point of vessel offset: Set the distance from the transducer to the lowest
point of the boat in the water - this should be set as a negative value. For example,
- 0.3 m (-1 ft).
B
Depth below surface (waterline) offset: Set the distance from the transducer to the
surface - this should be set as a positive value. For example, +0.5 m (+1.77 ft).
For depth below transducer, set the offset to 0.
Echosounder software version
For external sounder modules, the software version is displayed in the header of the Echo
Installation dialogue. For upgrade software information, refer to
"Software updates and data backup"
on page 43.
Water speed calibration
Water speed calibration is used to adjust the speed value from the paddle wheel to match
the actual boat speed through the water. Actual speed can be determined from GPS speed
over ground (SOG) or by timing the boat over a known distance. Water speed calibration
should be performed in calm conditions, with minimal wind and current movement.
Increase this value above 100 % if the paddle wheel is under reading, and decrease this value
if it is over reading. For example, if the average water speed reads 8.5 knots (9.8 MPH) and
SOG records 10 knots (11.5 MPH) the calibration value needs to be increased to 117 %. To
calculate the adjustment, divide the SOG by the paddlewheel speed, and multiply the
product by 100.
Calibration range: 50-200 %. Default is 100 %.
Water speed averaging
Averages water speed by measuring your speed at a selected interval of time. Water speed
intervals range from one to thirty seconds. For example if you select five seconds, your
displayed water speed will be based on averaging over 5 seconds of sampling.
Calibration range: 1-30 seconds. Default is 1 second.
Water temperature calibration
Temperature calibration is used to adjust the water temperature value from the sonar
transducer to match the data from another temperature sensor. It may be required to correct
for localized influences to the measured temperature.
Calibration range: -9.9° - +9.9°. Default is 0°.
Ú
Note:
Water temperature calibration only appears if the transducer is temperature
capable. Check transducer type selection if this option should be available.
Transducer type
Transducer type is used for selecting the transducer model connected to the sonar module.
The transducer selected will determine what frequencies the user can select during sonar
operation. In some transducers with built-in temperature sensors, the temperature reading
Software Setup | NSS evo3 Installation Manual
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