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AQUAscat® 1000L

AQUAscat® 1000L

Suspended sediment in the lab. Ideal for laboratory based sediment research

Aquatec Group Ltd
Basingstoke, GB


Aquatec has a long history of innovation and was founded in 1990 by the current managing director as a specialist consultancy in oceanographic design. Since then, the company has established a diverse portfolio of products for the measurement of oceanographic and process parameters, as well as establishing a range of services including instrument and communication design. Suspended sediment measurement has been a core element of our product offering for over 20 years. The AQUAscat range are market leading instruments that use multi-frequency acoustics to observe profiles of suspended sediment concentration up to 10m in range.


Suspended sediment profiler

Sediment Range

Sensitive to a wide range of grain sizes Size inversion typically feasible for 20 μm to 500 μm radius Typically 0.01 g/l to 20 g/l over 1 m, or more over shorter range


Up to 4 frequencies, from 500 kHz to 5 MHz


Typically Ø10-25mm ceramic discs (beam width according to frequency), with other optional configurations.

Transducer arrangement

Individual cabled transducers


Software controlled transmitter and receiver gain adjustment


150 cm (typical), up to 10 m at frequencies below 2MHz depending on options.

Transmitted signal

1 W rms typical transmit CW pulse, pulse length to match cell size.

Transmission rate

128 Hz max pulse rate for each frequency (i.e. 512 pulses per second for four), subject to acoustic range limits. Minimum rate 1 Hz for calibration.

Data averaging

Cell ensembles averaged over time by powers of 2 up to 64 before storage

Range cells

256 cells. 2.5 mm, 5 mm, 10 mm, 20 mm and 40 mm at 1500 m/s speed of sound. Start/end range set by software

Burst duration

Defined by number of profiles requested

Burst trigger

Either external hardware trigger when required or internal software trigger at regular intervals

Burst interval

Internally generated from once every minute to once every 255 minutes, user definable start time of first burst

Trigger output

A digital output allows triggering of external instruments

Power requirement

12V power supply

Disk storage

Compact Flash (proprietary format). 2 GB standard.

Additional sensors

Cabled turbidity, temperature, pressure

Data comms

RS232 up to 115 kbaud; USB 1.1 typically 2-3 Mbaud

Housing options

Plastic IP68 weatherproof instrument case

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