Robust factory model
Easy clean prism
PIN menu protection
RFM300+ series refractometers are considered by many
leading companies as the ultimate instrument for installation
in demanding factory environments, as well as for use as a
primary quality control tool.
Since its original launch in 1992, over 5,000 models have been installed across the globe, and following a complete re-design, the RFM300+ series
of refractometers still offers all the original design
attributes but with a wider refractive index range, Peltier
temperature control and a more versatile software
structure. A shallow, easy-to-clean prism dish houses
a single sapphire prism optical system protected
by a sample presser that may also be used to
instigate a measurement without the need to
press the read button. A large sampling area on the prism surface
allows measurement of not only homogenous
fl uids like juices, sodas, sauces and edible oils, but also diffi cult to read samples like fruit pulps
and industrial resins.
Intelligent software ensures rapid temperature response to changes in prism temperature, whilst the SMART temperature stability check makes sure that the result is displayed only when the sample is stable. A Methods system allows rapid configuration of instrument setup and provides limit checks against stored data as well as product-
specific offsets and acid corrections. Over 700 readings may be stored within the instrument memory and the on-screen menu may be displayed in a number of different languages.
The instrument is available in two formats, the most popular
being the 2-decimal place RFM340+ refractometer, which, following improvements to the thermodynamic control
system, now has an increased measurement performance
between 0-20°Brix and so reduces potential measurement
error in the critical range covering fi nished products like
the aforementioned juices and sodas. By improving the
performance at the low end of the scale, users may now trim
syrup dilution to the absolute minimum without the risk of
breaching manufacturing specifications.
SG scales for sucrose are also
common to the series. These
scales may be used to express
the relative density of pure
sucrose solutions and, when used in conjunction
with a product offset from within the Methods system, can express finished beverages as
an equivalent SG.
By doing so, contract packers of beverage
products may now use a refractometer in situations where
density °Brix or SG is dictated as the method of analysis, whilst retaining all the measurement advantages held by a
refractometer. Additionally, all RFM300+ series refractometers have the ability
to display the measured result in two scale formats such as a
Brix value based on SG alongside the original refractive index
Optional software is also available at point
of order to allow use in an environment controlled by FDA regulation 21 CFR Part 11, as well as optional devices that allow
use in wet and humid factory environments, offering ultimate
protection under the worst of environmental conditions.
22-30 - RFM330+ (RFM33F)
22-40 - RFM340+