SonTek/YSI Argonaut-XR Technical Manual - HydroScientific West

SonTek/YSI
2
New Low-Profile Housing Original Housing
Frequency Min Cell Begin /
Blanking Distance
Min Cell End
Min Cell Begin /
Blanking Distance
Min Cell End
500 kHz 1.5 m (4.9 ft) 5.5 m (18.0 ft) 1.5 m (4.9 ft) 5.5 m (18.0 ft)
1500 kHz 0.2 m (0.7 ft) 1.2 m (3.9 ft) 0.5 m (1.6 ft) 1.5 m (4.9 ft)
3000 kHz 0.1 m (0.3 ft) 0.6 m (2.0 ft) 0.2 m (0.7 ft) 0.7 m (2.3 ft)
For more information on the Argonaut-SL improvements, see:
• Technical Note: Argonaut-SL New Features and Enhancements (April 2007):
http://www.sontek.com/product/asl/sl-new0407.pdf
• Argonaut-SL Brochure/Specifications:
http://www.sontek.com/download/brochure/arg-sl.pdf
1.2. Improved vertical beam performance
Vertical beam performance has been improved, particularly for the new housings in very
shallow water.
• All vertical beam algorithms have been updated to provide improved reliability.
• The minimum depth for vertical beam operation for all systems using the new housings has
been improved, allowing operation in shallower water.
o IMPORTANT: Monitor the aspect ratio closely in shallow water to avoid possible measurement
contamination from surface or bottom effects. Refer to the Argonaut-SL manual
or contact SonTek/YSI for more information.
Cell End
H S
H B
If H