The AQUAlogger 520 logger series

The AQUAlogger 520 oceanographic instruments are fully self-contained, miniature data loggers. A USB-connected reader allows for fast uploading of up to 256 thousand logged parameter readings using a contactless communication system.

The AQUAlogger 520 is a compact instrument capable of monitoring temperature and/or water pressure at up to 1000 m water depth. The 520 series of data loggers incorporate a replaceable battery providing life expectancy of 5 years for a typical deployment regime, within a lightweight housing.

The AQUAtalk software application provides an intuitive and user-friendly software interface for deployment configuration, uploading of data, and quick report generation.

Sensor Specifications

	Temperature	Pressure
Sensor Type	Thermistor	Piezo-resistive Bridge
Ranges	-2 to +30°C standard, other ranges on request	1.6, 4, 10, 16, 25, 40, 60, 100 bar
Resolution	better than 0.0015°C	better than 0.005% full scale
Accuracy	±0.05°C	typically better than 0.2% full scale
Time constant	Standard sensor better than 5 s High speed sensor better than 1.5 s	N/A

Data Logger Specification

Channels	Temperature and/or Pressure as fitted Battery voltage
Sampling	Burst sample every 1-255 seconds or 1-255 minutes Sample from 1-15300 samples per burst Within burst sample rate from 1 Hz to once every 30 s Averaging over 1, 2, 4, 8, 16, 32, 64, 128, or 256 samples
Data Storage	Non-volatile FLASH solid state storage Standard memory >250000 readings Extended memory >500000 readings Data retention >10 years
Battery	Technician replaceable 3.6V Lithium AA cell Typical life >5 years
Dimensions	200mm(7.9”)longx32mm(1.3”)diameter
Weight	190 g (6.4 oz) in air 41 g (1.5 oz) in water
Attachment	Single fixing holes in housing
Operating Depth	1000 m max
Reader Communications	USB 1.1
Software	AQUAtalk software to upload data and deploy logger ClickView software to view and analyse logged files