Introduction; Purpose And Scope - Aanderaa 4330 Operating Manual

INTRODUCTION

Purpose and Scope

This document is intended to give the reader knowledge of how to operate, calibrate and maintain the
Aanderaa Oxygen Optodes 4330, 4835 and 4831. It also aims to give insight on how the Oxygen Optode
works.
Individually calibrated commercially available optical dissolved oxygen Optodes for ocean and fresh
water applications were introduced by Aanderaa Data Instruments in 2002. The proven long-term
stability (years) and reliability of these sensors has revolutionized oxygen measurements and several
thousand are now in use in applications ranging from streams to the deepest oceanic trenches on
earth, from fish farms to waste water, from polar ice to hydrothermal vents.
In 2002 the first MKI versions of these sensors the models 3830 and 3835 went into service.
This manual deals with the more recent MKII Optode models 4330/4835/4831. Compared to MKI the
MKII Optodes' deliver improved electronics, optics, temperature compensation, formulas to calculate
absolute oxygen and can be individually multipoint (normally in 40 points at 5 temperatures and 8
oxygen concentrations) calibrated to an enhanced accuracy.
With the release of Framework 3 in 2011 Aanderaa introduced a new firmware version to accommodate
higher security and future expansion. Both the Smart Sensor Terminal protocol and the AADI Real Time
protocol was updated with this version of the Smart Sensor firmware, ( see appendix 11)
Aanderaa Smart Sensors utilize common communication protocols at the RS232 and RS422 interface
where the Smart Sensor Terminal protocol is a simple ASCII command string based protocol and the
AADI Real Time is an XML based protocol..Oxygen Optode 4330/4330F fits directly on the SeaGuard
top-end plate and is interfaced by means of a reliable CANbus interface (AiCaP), using XML for plug
and play capabilities. It can also be used as stand-alone sensor using RS-232 output. The sensor is
available in three different depth ratings, 300 meter, 3000 meter and 6000 meter. Oxygen Optode 4330
is also available in a fast response version called 4330F.
Oxygen Optode 4835 is the shallow water version of 4330. The sensor housing is made of Hostaform and
maximum depth rating is 300 meter. This version fits directly on the SeaGuard SW top-end plate and is
interfaced by means of a reliable CANbus interface (AiCaP), using XML for plug and play capabilities. It
can also be used as stand-alone sensor using RS-232 output.
Oxygen Optode 4831/4831F is a version build on the same platform as 4330 but with a wet mate
connector for easy integration. This sensor has analog and RS-232 output. The sensor is available in
three different depth ratings, 300 meter, 3000 meter and 6000 meter. Oxygen Optode 4831 is also
available in a fast response version called 4831F.
TD 269 OPERATING MANUAL
OXYGEN OPTODE 4330, 4831, 4835
June 2017
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