Typically 20 to 2000 microns radius 0.1 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 Ø10-20mm ceramic discs (beam width according to frequency), with other optional configurations.

AQUAscat 1000S: 4-frequency transducer head integral to housing;
Other models: individual cabled transducers

Software controlled gain adjustment and various TVG gain profiles

150 cm (typical), up to 20 m below 2MHz depending on model.

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

100 Hz max pulse rate for each frequency (i.e. 400 pulses per second for four), subject to acoustic range limits. Minimum rate 1 Hz for calibration.

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

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

Defined by number of profiles requested.

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

Internally generated from once every 2 to once every 255 minutes, user definable start time of first burst.

A digital output allows triggering of external instruments

8 V to 24 V dc. Typically 1 W when logging, and with standby of typically 1 mW when not logging.

Internal alkaline battery pack gives 10 days continuous use. External battery packs available according to deployment needs.

Temperature: 0-25°C standard, ±0.05°C, resolution <0.0015°C
Pressure: Choices to 100 bar, ±0.2%FS, resolution 0.005%FS
Turbidity: Optional remote turbidity sensor
Other: Connect up to two external sensors.

Compact Flash (proprietary format). 4GB standard. Up to 8GB option.

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

1000m aluminium alloy housing for subsea systems Steel bench-top instrument case for AQUAscat 1000L