1 Introduction
The AML-3 series of instruments is a configurable family of multiparameter sondes designed for
a wide range of data collection applications. The ‘3’ designation refers to the number of sensors
that may be simultaneously installed on the instrument’s endcap.
There are two primary configurations of instruments in the AML-3 family: the AML-3 LGR, a
self-powered instrument designed for profiling applications, and the AML-3 RT, an externally
powered instrument intended for Real Time applications. While nearly identical in size and form
factor, the two configurations differ in a few key features which specialize them for their
respective applications.
Instruments with the LGR designation (ie. AML-3 LGR described in this manual) are
self-powered via a rechargeable internal battery and have a mechanical on/off switch adjacent
to their shackle. These instruments are designed to internally log sensor measurements and
transfer data post-deployment. These instruments are most commonly used for multiparameter
profiling such as CTD, SVP, etc.
Real-Time instruments, in contrast, are designed to stream data while in-situ (though they have
the ability to internally record data as well). Both power and communication to these instruments
is facilitated via a waterproof connector located adjacent to the shackle. These instruments rely
on external power for operation and the application of this power turns the instrument on in lieu
of a mechanical switch. These instruments are commonly used in moored applications, buoys,
underwater observatories, and ROVs.
This manual describes the operation of the Logger version, the AML-3 LGR.
1.1 Instrument Overview
AML-3 instruments are highly customizable and so may be equipped with a wide range of
user-specific sensors, functionality, and features. The instrument described here is intended to
be a representative example of a typical setup and therefore may not be identical to the
Reader’s unit. The Reader is directed to any unit-specific supplementary documentation
provided with their instrument for information on features and functionality not described here.
Figure 1 depicts a typical AML-3 LGR arrangement.
AML Oceanographic Ltd.
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