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July 2019 – TD 304 OPERATING MANUAL – Doppler Current Profiler Sensor
Air Detect
Integer
Record State
Integer A 32-bit status number which provides quality warnings.
Ping Count
Integer
The sensor has input settings for Sound Speed (m/s), Air Pressure (kPa), Local Gravity Constant (m/s^2), Salinity
1)
(PSU), Fixed Installation Pressure (kPa) and Temperature (Deg.C). When the sensor is used in AiCaP mode on a
SeaGuardII or SmartGuard the sensor can receive sensor input from other sensors to calculate Density, Depth, Salinity
and Sound Speed in water (CTD input data). Without an Aanderaa SeaGuardII or SmartGuard the user has to send
down the new settings to be able to get surface referred columns and surface cell. Usually the salinity does not change
much during a short time period. This is normally the case for Temperature also (the DCPS5400 can also be ordered
with its own temperature 4080). The Air Pressure and Fixed Installation Pressure can for example be sent to the sensor
more often to make the sensor able to calculate its own depth used for correct surface positioning/referencing.
Example 5: The parameters outside the profile data
//Press Enter to start communicating with the sensor
Stop
↵
// Stop current measurement. Wait for ack #. Repeat if necessary.
Set Heading Output(Output)
Set Pitch Roll Ouput(Output)
Set Abs Tilt Output(Output)
Set Max Tilt Output(Output)
Set Tilt Direction Output(Output)
Set Noise Level Output(Output)
Set Std Dev Heading Output(Output)
Set Std Dev Tilt Output(Output)
Set Charge Voltage Output(Output)
Set Memory Used Output(Output)
Set Voltage Output(Output)
Set Current Output(Output)
Set Air Detect Output(Output)
Set Speed Of Sound Output(Output)
Set Depth Output(Output)
Set Salinity Output(Output)
Set Density Output(Output)
Set Enable Text(Yes)
Set Enable Decimalformat(No)
Save
↵
// wait for ack #
Reset
↵
// the sensor will restart with new settings
The output string with all parameters outside the columns enabled and only one cell activated from example 5 is shown
in
Figure 5-9.
Gives the raw value measured by the air detect sensor. The air detect function
disables the ping pulse from the transducers (if the value is below the Air detect
Threshold value). Only available on DCPS 5400, not on 5402 and 5403.
Number of pings executed, can be lower than configured number of pings to be
done.
↵
//wait for ack #
↵
//wait for ack #
↵
//wait for ack #
//wait for ack #
↵
↵
//wait for ack #
//wait for ack #
↵
//wait for ack #
↵
//wait for ack #
↵
//wait for ack #
↵
//wait for ack #
↵
//wait for ack #
↵
//wait for ack #
↵
//wait for ack #
↵
//wait for ack #
↵
//wait for ack #
↵
↵
//wait for ack #
//wait for ack #
↵
↵
//wait for ack #, text on again to see the parameter names
↵
//wait for ack #, back to scientific numbers
↵
//press Enter
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