Ctd Power On/Off Switch; Interfacing Windows Programmes; Firmware Overview; User Interface - idronaut Ocean Seven 304Plus Operator's Manual

SECTION ONE – SYSTEM DESCRIPTION
1.8.

CTD POWER ON/OFF SWITCH

The OCEAN SEVEN 304Plus CTD is equipped with a rotary magnetic switch which acts as an ON/OFF
switch. This switch allows the operator to easily deploy a pre-configured CTD which, when it is on the
sampling site, will start to acquire data according to the pre-configured cycle. It is important to wait at least
30 seconds between consecutive ON/OFF cycles. The below pictures show the top covers according to the
AISI, POM and Titanium housings.
Housing Ø 100mm
OS304Plus - MI
Titanium/white POM
1.9.

INTERFACING WINDOWS PROGRAMMES

IDRONAUT programmes designed for any type of Windows 32bit operating systems allow the
operator to communicate with the OCEAN SEVEN 304Plus CTD to perform attended or unattended
data acquisitions. Programmes include functions to upload data from the internal memory when the
CTD acts as a logger. The programme packages comprise:
ITERM: Terminal Emulation Programme and CTD management. It simplifies the communications
with the OCEAN SEVEN 304Plus CTD. Diagnostic and CTD dedicated functions are
provided under the "PROBE" menu.
ZTERM: Terminal Emulation programme for Windows Mobile operating system. It simplifies the
communication with the OCEAN SEVEN 304Plus CTD.
uREDAS-5: Real-time data acquisition software for Windows Mobile operating system. It allows
acquiring and displaying data in real time storing it for later retrieval and processing using
REDAS-5 program. While acquiring, up to six different parameters are numerically shown
on screen.
REDAS-5: Real-time data acquisition, processing and presentation programme which allows the
numerical display and plotting of the standard sensors and the derived variables such as
salinity, sound speed, density, according to UNESCO formulas and recommendations.
OceanSevenCalibration:
Test program to verify the OS304Plus operations in a calibration laboratory. It allows the
operator to see in real time and store in a text file data acquired from the OS304Plus CTD
sensors in engineering unit and in raw data format.

1.10. FIRMWARE OVERVIEW

The OS304Plus CTD is provided with a firmware that manages all the CTD operations. The most
important management functions are described in the following subsections.

1.10.1. User interface

Whenever the CTD runs in "VERBOSE MODE", interaction with the user is carried out by means of
the "USER INTERFACE". With the term "USER INTERFACE" or "MMI" (Man Machine Interface), we
mean the firmware layers that react to the user input and instruct the lower layers of the firmware to
perform the desired action. The "USER INTERFACE" is a so-called menu driven interface, that is, at
any time it is possible to select just one option among various possible choices. Each option will in
turn perform the desired action or invoke a sub-menu containing further topics. The "USER
INTERFACE" makes extensive use of different kinds of menus, among which we have: menu, sub-
menus and data entry menus. A brief and exhaustive description of these menus will follow in the
next subsections.
IDRONAUT – Brugherio (MB)
Housing Ø 75mm
OS304Plus - STD
White POM
OCEAN SEVEN 304Plus CTD
Housing Ø 48mm
OS304Plus - STD
Titanium
5
Housing Ø 43 mm
OS304Plus – STD
AISI 316/black POM
12-2015