The NAS-3X is an in-situ nutrient analyzer for
high-frequency time-series determination of nutrient concentrations
in marine and fresh waters. Versions
are available for the measurement of nitrate phosphate,
silicate and ammonia.
The new "3X" version incorporates an all new electronic
controller and datalogger with a fully scriptable control
language. Other features include new detector electronics
for higher precision measurements, larger memory, easy
interfacing and new analysis sequences.
The NAS-3X is typically deployed unattended for periods
of 1 - 3 months, although much longer deployments have
been achieved. The device may be used near surface, in
buoy and riverine applications, or be deployed at depths
to 250 m in taut-line moorings.
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