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Refractometers help ensure accurate coolant concentration

Eriez® HydroFlow® refractometers give users the ability to determine the concentration of metalworking coolants and cleaners, heat-treating fluids, water-based hydraulic fluids, and plating baths.

The portable units require no batteries. They feature a large scale in 0 to 10 degrees Brix and 0 to 32 degrees Brix.

The automatic temperature-compensating refractometers are suitable for situations in which the temperature of certain fluids can affect the refractive index reading of the mix. They have a large scale in 0 to 20 degrees Brix and 0 to 30 degrees Brix.

Hand-held digital refractometers also are available with an LCD readout from 0 to 52 degrees Brix.