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July 2019 – TD 304 OPERATING MANUAL – Doppler Current Profiler Sensor
1.7.2 Deployment Settings
Deployment Settings contains settings for instruments metadata like position and owner, but also site dependent
properties storing data that might influence the measurement. Value stored in these setting can be used as default
values but might also be exchanged with real-time measured data if sensors are connected to the AiCaP bus.
Table 1-6: Sensor properties for Doppler Current Profiler Sensor 5400/5400R, 5402/5402R, and 5403/5403R
ENUM=Enumeration, INT =Integer, BOOL=Boolean (‘yes’/’no’)
Table 1-1
Property
Type
No of
e
lem
ent
s
Use
Conf
igur
ation
Ca
tegor
y
Acces
s
Pro
te
cti
on
R
ea
d/W
rite
Interval
ENUM 1
Set the output interval in seconds, minutes or hours. Minimum
available interval is dependent on configuration (time to do all
ping measurements).
1)
DS
No /
No
Location
String 31 User setting for location
Geographic Position String 31 User setting for geographic position
Vertical Position
String 31 User setting for describing sensors vertical position/depth
Reference
String 31 User setting for describing sensor reference, user definable.
Enable Magnetic
Declination
BOOL 1 Enables use of magnetic declination angle input (see
Declination Angle for value used)
2)
No /
Low
Declination Angle
Float
1
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.
2)
Sound Speed
Float
1
Fixed sound speed setting in m/s. This value is used for cell
positioning in the profile and for calculation of current speed
values. Variable sound speed values can be used while sensor
is running.
3)4)
Air Pressure
Float
1
The air pressure in kPa. The air pressure value is used when
calculating depth. Can be altered while sensor is running to
compensate for variable air pressure.
Local Gravity
Constant
Float
1 Gravity constant in m/s² used for calculation of depth.
Salinity
Float
1
Salinity in PSU used for calculation of density, sound speed and
depth. Can be altered while sensor is running to compensate for
variable salinity.
3)
Fixed Installation
Pressure
Float
1
The pressure in kPa at the deployment site. Can be altered
while sensor is running to compensate for variable pressure.
3)
This value is used for calculation of depth if the surface cell or
surface reference is enabled without parameter input from a
pressure sensor.
5)6)
Not recommended.