February 2020 – TD 266 OPERATING MANUAL – ZPulse® DCS 4420/4830/4520/4930 Page 21
Enable Single
Interval
BOOL 1
Set yes to perform only one single measurement interval. Default is no
SC
No /
No
1)
Start Distance
ENUM 1 Set the distance for the pulse propagation before measurements starts.
Default value is 0.50
Low /
Low
Cell Size ENUM 1 Set the cell size. Default value is 1.50
Enable ZPulse
Operation
BOOL 1 Activate/deactivate ZPulse operation; Set yes to activate. Default value
is yes. ZPulse operation gives two separate frequencies in each ping
and therefor higher quality data without increasing power consumption
Sensor Id ENUM 1
When the DCS is connected to AiCaP, a list of other available sensors
connected to the SmartGuard/SeaGuard Datalogger is shown. This
makes it possible to get a correct heading input from another sensor
through the Datalogger. Only in AiCaP mode
No /
Low
Parameter Id
(Deg.M)
ENUM 1
A list of all available Heading parameters with Deg.M as unit is shown in
the dropdown menu. Make sure that the correct heading parameter is
selected. Only in AiCaP mode.
Sound Speed
Sets the speed of sound in water. The sound speed is approximately
1500m/s in seawater. Default value is 1500.
Low /
Low
Enable Fixed
Heading
BOOL 1 Allows the user to deactivate the internal compass and set a fixed
heading value. This can be used if for example the sensor is standing
on a fixed platform where the earth magnetic field is disturbed.
3)
Fixed Heading
[Deg.M]
Float 1 The fixed heading value is used if fixed heading is enabled.
3)
Enable Tilt
Compensation
BOOL 1 Enable/disable tilt compensation to correct the measured current speed
according to the sensor tilt. Default value is yes
Activation X-
axis
Controls active transducers on the X-axis: 1, 3, 1+3. Default is 1+3. If
there is a fixed obstruction in front of one transducer this transducer
might be turned off
Activation Y-
axis
ENUM 1 Controls active transducers on the Y-axis: 2, 4, 2+4. Default is 2+4. If
there is a fixed obstruction in front of one transducer this transducer
might be turned off
Enable
Forward Ping
BOOL 1 Set yes to enable forward ping to improve the current speed accuracy,
The sensor will try to measure upstream to reduce problems related to
turbulence. Default value is yes.
1)
Only available for stand-alone use. Not visible in AiCaP mode.
2)
The burst mode should be enabled when using a longer interval where the user does not want to average the current
over the entire interval. The burst duration for executing all the pings is dependent on the configuration of the sensor
(profile size, number of columns, number of cells and number of ping).
3)
The fixed heading value here is the angle in degrees between north direction and transducer 1 (clockwise) – Refer
Figure 8-2. When viewing the sensor from the front (label side) transducer 1 is to the left on the rear side. If for example
transducer 1 is 118° clockwise from north, the fixed heading should be set to 118°. The fixed heading is a value
between 0 and 360 (0 and 360 is the same point).
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