Tune® Systems Fluid mud density and rheometry The RheoTune and DensiTune P provide a proven track record in measuring In-situ density and yield strength profiles in (semi-) fluid muds. World-wide numerous harbour authorities rely on the Tune systems to keep their ports accessible at minimum dredging costs. The Tune family has recently been extended with the DensiTune P. A highly portable system to quickly obtain in-situ density profiles wherever you need them and from whatever platform. Stema Systems, the specialist in fluid mud and silt measurement systems, has succeeded in implementing the theoretical background of tuning fork technology into a hand on measurement device. Accurate In-situ density and yield-strength profiles are obtained virtually calibration free. An easy to use interface and compact size are valued. With the DensiTune P the portability has been further enhanced by a lighter housing and wifi data transmission. Key benefits Calibration free density and yield-strength Viscosity and dry solid calculation Light weight probes for easy operation and transport Ethernet data transmission (DensiTune: wifi) to laptop/ Windows-tablet The RheoTune and DensiTune P are versatile systems to be operated from the smallest vessel. To increase productivity an automated electrical winch or manual light weight winch with slip ring are available. The Tune systems are optimized to integrate with the SILAS seismic profiling system. The DensiTune P is especially suited for periodical calibration of this density mapping system. Areas of application Assurance of nautical accessibility of your harbour Calibration of Silas acoustic density mapping system Water bottom stability assessment in coastal studies Managing filling quantities in disposal area’s Monitoring of siltation quantities and fluid loads in hopper bins

Tune® Systems Fluid mud density and rheometry specifications System Output parameters RheoEdit user interface DensiTune P Density, Temperature, Depth (P) Optional: Yield- strength, Viscosity Dry Solids Density, Temperature, Depth (P) Yield strength, Viscosity, Dry Solids Density Accuracy Resolution Range Yield Accuracy Strength Resolution [Bingham] Range <1% of density (Newtonian fluid) 1 gr/l 1000 – 1500 gr/l (semi fluid materials with Bingham yield strength < 1 kPa) [RheoTune: to 1800 gr/l with adapted calibration] Ca. 5% of Yield strength 1 Pa 0 – 500 Pa Accuracy Resolution Range Depending...