Mettler Toledo Refracto 30PX Manual de usuario descargar pdf (Pagina 4)

Density meters and refractometers

Density and refractive index –

simultaneously or one at a time

The days of manual determinations with pycnometers, hydrometers or optical Abbe refractometers

belong to the past. The METTLER TOLEDO digital instruments determine density and refractive in-

dex simply, with great accuracy and, depending on the instrument, even simultaneously. Automatic

conversion of the results to user-dened units allows the instruments to be used for special applica-

tions. The built-in Peltier thermostat ensures that the sample temperature is accurately controlled

– no need for water baths.

Density and refractive index

One measurement – two param-

eters! The METTLER TOLEDO DR40/45

Combined Meters simplify something

commonplace in many industries: The

simultaneous determination of density

and refractive index. Measuring both val-

ues with the same instrument increases

speed, simplies procedures and en-

hances the accuracy of the results.

In many industries (e.g. petrochemical

or avors and fragrances) the deter-

mination of both values is already a

standard method. In other industries, the

simultaneous determination of density

and refractive index is used to determine

concentrations in multi-component

mixtures. That’s no problem for the DR

Combined Meters – besides the density

and refractive index, they can also cal-

culate up to two results from the density,

the refractive index or from both results

using formulas or concentration tables

previously entered.

Instrument Limit of Error Temperature range

DR40 Density: 5 · 10

-5

g/cm

Refractive index n

: 1 · 10

-4

15 … 50 °C

DR45 Density: 5 · 10

-5

g/cm

Refractive index n

: 5 · 10

-5

15 … 50 °C

1 2 3 4 5 6 7 8 9 10 11 12

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