SonTek/YSI Argonaut-XR Technical Manual - HydroScientific West

Argonaut Operation Manual Firmware Version 7.9 (May 1, 2001)
SonTek/YSI
CoordSystem or CY [BEAM|XYZ|ENU]
• Default parameter: ENU (for MD and XR); XYZ (for SL)
• Without parameter: returns its current setting.
• When used with a valid parameter, sets the coordinate system to this value.
• BEAM causes velocity data to be stored and output as along-beam velocities.
• XYZ causes velocity data to be recorded and output in the Cartesian coordinate system
relative to the Argonaut.
• ENU causes the Argonaut to use the compass/tilt sensor (if installed) data to transfer
velocity data in Earth (East-North-Up) coordinates.
• See §6.4 for coordinate system details.
TempMode or TM [USER|MEASURED]
• Default parameter: MEASURED
• Without parameter: returns its current setting.
• When used with a valid parameter, sets the temperature mode to this value.
• Determines whether the user-input temperature (USER), or the value from the temperature
sensor (MEASURED), is used for sound speed calculations.
• The temperature sensor is specified as accurate to ±0.1°C. We recommend using
MEASURED unless there is reason to suspect the temperature sensor has been damaged.
• See Argonaut Principles of Operation for the effect of sound speed on velocity data.
DataFormat or DF [LONG|SHORT]
• Default parameter: LONG
• Without parameter: returns its current setting.
• When used with a valid parameter, sets the data format to this value.
• Determines the format of data output over the serial port and to the internal recorder. LONG
format includes all available diagnostic data and requires 33 bytes of data storage per
sample (binary format). SHORT includes only minimal diagnostic data and requires 20 bytes
of storage per sample (binary format). SHORT is intended only for autonomous
deployments with large data storage requirements.
• See §7.2 regarding the calculation of data storage requirements.
CellBegin or CB [d.d] (used in XR and SL systems only)
• Default parameter: 2.0 (meters)
• Parameter range: 0.5 to 14.8 (for 1.5-MHz XR and SL systems)
0.2 to 5.8 (for 3.0-MHz XR and SL systems)
• Without parameter: returns its current setting (in meters).
• When used with a valid parameter, sets the starting location of the measurement volume to
this value in meters. The measurement volume location is specified as the vertical (XR
systems) or horizontal (SL systems) distance from the transducer head.
• The measurement volume size (the difference between CellBegin and CellEnd) must be
at least 0.5 meters.
• See Argonaut Principles of Operation for the effect of sound speed on velocity data.
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