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How Do You Measure Dissolved Oxygen (DO) In Harsh Environments?
Shrimp farmers work in very adverse conditions that impact the chemical make-up of the grow-out ponds. For example, Guatemala is experiencing a drought that has caused what is referred to as the “Child’s Effect” in the shrimp industry. The Child’s Effect causes high temperatures, and increased salinity in the grow-out ponds. Some of these farmers have turned to Sper Scientific to provide rugged, reliable, and accurate field measurement instruments to help them monitor these harsh conditions. They selected the AquaShock ® DO meter (850046K) and the Sper Scientific Optical Salt Refractometer (300006), which are ideally suited for these severe conditions. The water in...
What Is a Refractometer?
A refractometer is a device which measures the content (brix or sugar, honey, urine, salt, battery fluid…) of a solution by the refraction of light. Using an optical refractometer is simply a matter of placing several drops of the sample liquid on the angled prism and sealing the clear plate on top of it. Look through the eyepiece while pointing the refractometer at a source of direct light (do not look directly at the light with the naked eye). The use of a digital refractometer eliminates the uncertainty associated with optical refractometers; a digital refractometer uses an LED light to shine through the sample....
