February 2020 – TD 266 OPERATING MANUAL – ZPulse® DCS 4420/4830/4520/4930 Page 85
Enable Magnetic Declination is normally used when sensor is used
close to South Pole or North Pole. Declination Angle (Deg.M) is a value
to correct for the magnetic variation on the site where the sensor is used.
This is the angle in degrees between magnetic north and true north.
Magnetic declination (variation) is the angle between the magnetic north
and the true north. This angle varies depending on the position on the
Earth’s surface and also varies over time. Declination is positive when
magnetic north is east of true north and negative when it is to the west
(input angle value ±180°). Magnetic declination at the deployment
location can be found for i.e. on NOAA website:
http://www.ngdc.noaa.gov/geomag-web/
Figure 5-21: Dependencies
Enable Sensor Parameter Input If enabled the sensor might use data
from other sensors via SeaGuardII or SmartGuard. E.g. if a Conductivity
Sensor 4319 is connected to the same logger Salinity and Temperature
from this sensor can be used in calculations of e.g. depth and Sound of
Speed. Only in AiCaP mode, and need to be disabled if used with
SeaGuard
Figure 5-22: SGII and SmG Features
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