idronaut Ocean Seven 304Plus Operator's Manual page 4

PROBE WASHING
After use, the probe must be always washed with fresh water in order to remove any salt water residual or
dirtiness.
LIFETIME AND HOW TO REPLACE THE IDRONAUT SENSORS
The IDRONAUT sensors are all pressure compensated and, in particular, the physical sensors (pressure,
temperature and conductivity) can last many years, if properly used. All sensor heads have a standard 12
mm diameter and are provided with two o-rings (Parker 2-12) for sealing. This means that every sensor can
be fitted in any of the four sensor head holes. The pressure sensor is a high-quality transducer, which can
last many years if properly used. Its replacement is difficult and requires that the CTD is returned to
IDRONAUT.
INTERFACING THE OCEAN SEVEN 304Plus
The OCEAN SEVEN 304Plus CTD can be interfaced in different ways, depending on the type of action to be
performed. The below solutions must be adopted to guarantee that the OCEAN SEVEN 304Plus CTD
satisfies the stated performance.
CTD configuration and/or stored data uploading
In this case, the CTD can be interfaced using the laboratory (not submersible) cable. The CTD can be
powered through the cable or by the internal battery.
Pressure, Conductivity and Temperature sensor performance check
In this case, the CTD must be interfaced using a galvanic or optical insulator between the PC and the
laboratory cable.
IDRONAUT – Brugherio (MB) OCEAN SEVEN 304Plus CTD 12-2015