AQUAlogger 520
Temperature, pressure – to 1000m Ideal for long-term deployments, temperature distribution surveys, oceanographic studies and environmental impact assessments.
Description
The AQUAlogger® 520 is a miniature instrument, capable of monitoring accurate temperature and pressure measurements at depths of up to 1000m. The device is a flexible alternative to thermistor chains, given its self-contained design. The AQUAlogger® 520 is an appropriate instrument for both ocean and environmental applications.
Applications
- Long term deployments
- Temperature distribution surveys
- Flexible alternative to thermistor chains
- Environmental impact assessments
- Time series of temperature at fixed depths/points
Specifications
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Hydrotest logger technical specifications
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Dimensions
200mm (7.9”) long x 32mm (1.3”) diameter
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Hydrotest logger specification
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Data storage capacity
> 250,000 parameter readings, in non-volatile FLASH. Option available for >500,000 parameter readings
Logging lifetime
Typically 5 years, depending on regime
Data retention
>10 years
Sampling
Bursts every 1 – 255 seconds or 1 – 255 minutes
Acquisition rate
From 1 Hz to once every 30 seconds
Burst averaging
Bursts may be averaged to a single data value
Communication
Wireless system via separate drop-in reader
External interfaces
USB 1.1, bus powered
Battery
3.6V Custom Lithium ‘AA’ cell - Technician replaceable
Software
AQUAtalk for Windows for configuration and download
Attachment
Single point attachment through mounting hole or use clamp
Maximum depth
1000 m
Weight
190g (6.4oz) in air; 41g (1.5oz) in water
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Hydrotest temperature sensor specifications
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Sensor type
Thermistor
Ranges
-2 to 30°C standard, other ranges on request
Accuracy
±0.05°C
Resolution
better than 0.007°C
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Hydrotest pressure sensor specifications
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Sensor type
Pressure
Ranges
5 bar (~40m), 11 bar (~100m), 51 bar (~500m), 101 bar (~1000m) (Other sensors available on request)
Accuracy
typically better than 0.2% full scale
Resolution
better than 0.01% full scale