Specifications

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Sartorius LMA500. Analyzing Moisture Content With Optics —
Quick, Reliable, Non-Destructive
The LMA500 uses spectroscopy. It exploits
the interaction between light and the sam-
ple. If the sample is exposed to near
infrared light (NIR), a part of this light is
reflected and modified characteristically on
interaction with the sample. This change in
the NIR light, which is dependent on the
water content of the sample, reveals its
moisture content.
Calibration
The LMA500 calibrates itself by analyzing
data it has collected using sophisticated
multivariate statistics (regression analyses,
approximation procedures) practically
without the need for user input or expert
knowledge. If desired, you can quickly
adjust the calibration by connecting an
MA35 rapid moisture analyzer. This allows
you to adjust to changes in sample charac-
teristics, giving you another method for
updating your system to new batches.
Or you can create calibrations for products
that have just been added to your product
portfolio. Calibration settings for many
classes of substances are available from
Sartorius.
Verification made easy
Multivariate evaluation offers index values
for evaluating measurements. This infor-
mation identifies anomalies or samples
that have been categorized incorrectly so
corrective action can be taken immediately.
Applications
The LMA500 is designed for analyzing the
moisture content of pourable and granu-
lated products, and viscous products as
well such as slurry. It measures moisture
content within a range of approximately
0.1% – 50%. Calibration with a direct
measurement is required if you wish to use
the NIR calibrator. The NIR calibrator is
optimized for use with the MA35 moisture
analyzer. Naturally, other reference meth-
ods can be used. The major applications of
the NIR calibrator include laboratory
analysis and at-line process control.
Analysis does not modify the sample, so the
sample can still be used after measurement.
Design
The NIR calibrator and its measuring,
operating and evaluating components are
contained in a water resistant IP54 hous-
ing. A fiber optic cable connects the probe
so that measurements can not only be
taken in the integrated analysis area but
also at other locations, in the MA35 or
directly in the production process. Thanks
to the device’s compact design, it can be
quickly transported to other testing
locations.
Software
The LMA500’s software is easy to use and
intuitive. All data are protected. Only users
who have authenticated can access the sys-
tem. User permissions can be individually
modified to suit your needs. No expert
knowledge is necessary to create, extend
or adjust calibration settings.