SonTek/YSI Argonaut-XR Technical Manual - HydroScientific West

Appendix 3. Vertical Beam Support for Argonaut SL Systems
A3.1. Introduction
Argonaut Operation Manual Firmware Version 7.9 (May 1, 2001)
SonTek/YSI
Beginning with Argonaut firmware version 5.7 (April, 2000), support was added for Argonaut
SL systems that have the optional vertical beam installed. Differences between standard
Argonaut commands and data outputs are described in this appendix.
A3.2. Additional Commands for Vertical Beam Argonaut SL Systems
The following commands have been added to support vertical beam operation in the SL.
VerticalBeam Set [YES|NO]
• Enables or disables the use of the vertical beam.
• When set to YES, processing of vertical beam data requires additional CPU resources. As
such, the minimum value for the averaging interval is 10 seconds.
Level [CONT]
• This command outputs the current water level value in mm.
• When used with the CONT parameter, the water level value is continually output until the
spacebar is pressed.
A3.3. Real-Time Data Format for Vertical Beam Argonaut SL Systems
The following changes apply to the output data stream for vertical beam systems. See §3.16 for a
full description of the Argonaut’s output data format.
• When DataFormat = LONG, water level is reported instead of the third velocity component
(V3/Vz/Vup).
• When DataFormat = SHORT, water level is reported instead of the pressure field. Note: If
you need to report pressure data, either disable the vertical beam (VerticalBeam Set NO)
or use DataFormat LONG.
• The water level measurement unit depends on the setting of OutFormat: ASCII = mm,
Metric = cm, English = ft, Binary = mm.
• When no water level is detected, a value of –1 is reported.
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