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An electric instrument used to measure the conductivity of water to determine its content of dissolved solids.

Related Terms


An electronic instrument used to measure conductivity of a water sample to determine the dissolved solids content.


A device to measure the electrical conductivity of sea water at various depths from a moving ship.


  1. An instrument in which current, voltage, or power is measured by the force between a fixed coil and a moving coil. 2. A special type of electric rotating machine used to measure the output torque or driving torque of rotating machinery by the elastic deformation produced.


A common measure of ship carrying capacity. The number of tons (2240 lbs.) of cargo, stores and bunkers that a vessel can transport. It is the difference between the number of tons of water a vessel displaces 'light' and the number of tons it displaces 'when submerged to the 'deep load line'.' A vessel's cargo capacity is less than its total deadweight tonnage. The difference in weight between a vessel when it is fully loaded and when it is empty (in general transportation terms, the net) measured by the water it displaces. This is the most common, and useful, measurement for shipping as it measures cargo capacity.


An instrument that utilizes electrical means to measure temperature, such as a thermocouple or resistance thermometer.


Instrument used to measure degree of moisture in the atmosphere.


A measure of the ability of an insulating material to withstand electric stress (voltage) without failure. Fluids with high dielectric strength (usually expressed in volts or kilovolts) are good electrical insulators. (ASTM Designation D 877.)


A unit of measure commonly used in water analysis for the measurement of impurities in water. (17.1 grains = 1 part per million


A unit of measure of oceanic current flow equal to 1 million cubic metres of water per second per square kilometre.


Refers to the category of dissolved solids present in water at a level of more then 5 mg/L.

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