SECTION ONE – PROBE DESCRIPTIONIDRONAUT – Brugherio (MB) OCEAN SEVEN 311 04-20195INSTALLING TWO 3.6V LITHIUM BATTERY IN THE DOUBLEALKALINE BATTERY HOLDER AND CONNECTING IT TO THE OS311TOP COVER WILL CAUSE A PERMANENT DAMAGE TO THE OS311PROBE ELECTRONICS.When the probe is not used for long periods (e.g. 2 weeks or more), we suggestdisconnecting the internal battery pack connector from the probe electronics or removing the internalbattery pack from the probe to prevent the internal batteries from damaging the probe due to batteryacid leakage. This is why the OCEAN SEVEN 311 is shipped without batteries installed. The status ofthe internal battery pack can be derived from the battery diagnostic reading on the probe start-upmessage.1.5.1. Optional rechargeable battery packAn IDRONAUT custom rechargeable battery pack (3.6VDC, 4.2Ah) isavailable upon request. It comes complete with an international batterycharger. Please be aware that it is not possible to recharge the batteries whenthey are installed inside the probe. Therefore, the probe top cover must beopened to recharge the internal battery pack.1.6. PROBE POWER ON/OFF SWITCHThe OCEAN SEVEN 311 is equipped with a rotary magnetic switch which acts asan ON/OFF switch. This switch allows the operator to easily deploy a pre-configured probe 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 belowpictures show the top covers according to the AISI, POM and Titanium housings.Housing Ø 75mm Housing Ø 48mmOS311 - STD OS311- STDWhite POM Titanium1.7. INTERFACING WINDOWS PROGRAMMESIDRONAUT programmes designed for any type of Windows operating systems allow the operator tocommunicate with the OCEAN SEVEN 311 to perform attended or unattended data acquisitions.Programmes include functions to upload data from the internal memory when the probe acts as alogger. The programme packages comprise:WTERM / ITERM:Terminal Emulation Programme and probe management. It simplifies the communicationswith the OCEAN SEVEN 311. Diagnostic and probe dedicated functions are provided underthe “PROBE” menu.1.8. FIRMWARE OVERVIEWThe OS311 is provided with a firmware that manages all the probe operations. The most importantmanagement functions are described in the following subsections.