Cells that have been contaminated with foreign material generally read low of the actual conductivity. Your zero (in air) conductivity reading is generally unaffected. The conductivity error due to fouling will generally be proportional to the conductivity value....
The temperature and salinity correction for the SUNA can be traced to the experiment outlined in Sakamoto et al. 2009, which is the T/S correction our UCI-based SUNA software uses in post-processing only. Absorption of UV light in seawater is dominated by dissolved...
This modification allows the SBE9plus CTD to accept an RS-232C serial instrument data stream and transmit to the surface. The acceptable baud rate at the SBE9plus CTD is determined by the EPROM version installed in the modem board. These modem board options include,...
The detector wiring is damaged, especially if the LED’s are still flashing. NOTE: CDOM channels do not have visible LED’s, so, do NOT look into the CDOM LED port to confirm its operation (!!). The ECO firmware is programmed to output an unchanging “floor” value of...
Whether the tau correction is applied depends on where the system is being deployed. If the system is to be used in shallow, coastal waters where large vertical gradients that change quickly are expected, the tau correction should be applied, as it accounts for the...
The measurement range and accuracy of the SBE43 are not definite in discrete units (mL/L, mg/L, µMol/L, etc.) Rather, the range and accuracy specification are expressed as a ratio of the calculated oxygen saturation point. This saturation value depends on the...
The command interface is different and not inter-compatible for both devices. The sampling and configuration commands are also not inter-compatible. Because of this, they require different software (i.e. SeaFETCom for V1, UCI for V2). The SeaFET/SeapHOx V1 has native...
Oftentimes one will see data in their cast that looks erroneous or out of spec, but reviewing the timeline of each cast and the events which transpired can explain these jumps. If you are starting your cast while your CTD is on deck then the time during which the unit...
Data is stored in a RAM page buffer, which is only written to FLASH when it is full. If the instrument is powered off, samples stored in the partially filled page buffer will be lost BUT the recorded sample number will still be the same. This means that when all...
When the SeapHOx system loses connection with its 37 SMP-ODO CTD component, the system will report back the measured AND derived values related to that instrument as NAN. As part of this, it will also report its External pH as NaN as the salinity correction is missing...
Sea-Bird Scientific is excited to exhibit at the upcoming AGU Fall Meeting taking place in San Francisco, California, from December 11 - 15, 2023. Please come see members of our team at booth #750 to get your questions answered. More details from the organizers: "This...
The SBE 37 MicroCAT is a high-accuracy conductivity, temperature, and optional pressure recorder with an integrated Inductive Modem (IM) interface, internal batteries, memory, optional pump, and optional optical dissolved oxygen sensor. The MicroCAT is designed for...
Sea-Bird Scientific is proud to partner with Sequoia Scientific in hosting the first Ocean Science & Technology Conference in Seattle, Washington on Thursday, September 14th. This conference will enable those in the Seattle area to network, connect, and discuss...