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...
Scientific
What tests can I do in the field or in my lab to test the functionality of my ECO-PAR? Can I calibrate or validate my readings by myself?
The ECO-PAR, due to the nature of PAR sensors, cannot be accurately calibrated outside of the Sea-Bird facility. However, there are some functionality tests that can aid in pre-deployment. A bright flashlight can validate whether the instrument sees light at all. On a...
What tests can I do in the field or in my lab to test the functionality of my ECO-PAR? Can I calibrate or validate my readings by myself?
The ECO-PAR, due to the nature of PAR sensors, cannot be accurately calibrated outside of the Sea-Bird facility. However, there are some functionality tests that can aid in pre-deployment. A bright flashlight can validate whether the instrument sees light at all. On a...
Can my 9p CTD be used in fresh water environments?
There are two optional modifications that can be done to your 9p at our facility (during service or as part of your original order) that will allow the 9p CTD to operate in freshwater deployments. The 9p's pump will not operate in freshwater without these options....
How will cell fouling affect my conductivity / salinity data?
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....
What theory is the temperature / salinity correction for SUNA based on? Does this correction only work in natural seawater?
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...
What is the minimum dissolved oxygen concentration that can be accurately measured by the SBE 43 DO sensor?
The measurement range and accuracy of the SBE43 are not defined 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...
What is the effect of temperature drift on practical salinity for my CTD?
Example Data: Temperature and Conductivity are two of the most important values taken into consideration when our instrument calculates the practical salinity of seawater. When one sees a change in a measured value, such as temperature, that change will affect your...
Why does the specified range of the ECO BB sensors (expressed in m^-1) not match the maximum output calculated from my calibration sheet (expressed in m^-1 sr^-1)
What types of anti-fouling systems can I use for my ISFET-based pH sensor?
A vented copper cover over the sensor can provide some protection against bio-fouling. There is a copper anti-foul guard available for standalone SeaFETs that covers the sensing surfaces.nnIf you use a SeapHOx system, the conductivity cell on the SBE 37-SMP comes...
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