up to five different fluid-specific scales. Fluid-specific scales allow users to read directly in the particular unit of measure in which they are interested, i.e., percent... of possible fluid / scale combinations. Fluid scales include various acids, glycols, chlorides, alcohols, urine, blood plasma, or virtually any other water-soluble fluid. Custom scales... in refractive index measurement, is assured with nonlinear temperature compensation. Temperature compensation is automatic for fluids read between 0 and 50 C (+32 to 122 F). The...

is different for every fluid and differs for different concentrations of the same fluid. Although temperature compensation relieves the user of the responsibility to measure..., or a desktop refractometer, you must allow time for the refractometer temperature, the ambient temperature, and fluid temperature to come to equilibrium (within the temperature... compensation range of the refractometer). Since the volume of fluid is usually only a few drops, its thermal mass compared to that of the refractometer is really rather small, allowing...

that the temperature of the fluid is above (+) or below (-) the temperature range of the refractometer. The standard temperature range for the Palm Abbe refractometer is 0 to 50 C (32... (+) or below (-) the range of the current scale. For instance, if your unit has a percent concentration scale and a freeze point scale for a particular fluid. Even... if the concentration scale read from 0 to 100%, you could receive a SAMPLE OUT OF RANGE + message if testing an 80% fluid on the freeze point scale where the maximum freeze point occurs at 70...

the absence of a fluid sample on the measuring surface (Fig. 2) the light-energy is total internally reflected toward a linear detector array. In Fig. 3, some of the light-energy from... the LED is predictably lost into the test fluid. There is a direct relationship between the amount and angles of light-energy lost into the fluid and its critical angle. Past... the fluid name, the unit of measure, and the actual measurement. Error messages on the Palm Abbe display are displayed as text characters, and it can display them in English, French...

News What is a Refractometer? A Refractometer is a precision optical instrument designed to measure the concentration or mixture ratio of water soluble fluids. It measures..., not just scientists, to understand and use. We do this by demystifying arcane scientific methods and offering real-world solutions for fluid measurement applications. We pride.... Refractometer to Test Metalworking Fluids for Low Concentration Grinding. Looking for a refractometer to test metalworking fluids for grinding at concentrations from 0.5 to 4%, current analog...