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6. MAINTENANCE AND CLEANING
Hand refractometers need the same main-
tenance as any other optical instrument. They
must be always clean and they have to be pla-
ced in its box to avoid dust settle on them.
Take into account the following advices:
Never dismatle the lenses; if there is any
dust or dirtiness on the external surface of len-
ses wipe them with a fluff-free cloth.
To remove dust settled on lenses blow it up
with a pear or clean in with a soft brush.
Dry immediately the optical parts in case
they get wet. Never let the optical parts wet
If they come into contact with acid or basic
substances, clean them immediately with
water and then dry.
For the cleaning of mechanical pieces use
non-corrosive lubricants, being careful not to
touch the optical pieces.
Be careful not to knock the instrument or
scratch the surface of the prism.
7. ACCESSORIES
Available only for general refractometers:
Code
Description
90300011
Prism cover plate
90300621
BLinker
90300981
Plastic box
Pag. 38
Manual 50100xxx
suring all kind of products such as fruits, jui-
ces,
industrial cutting oils.
distilled water.
previous model but with Automatic Tempe-
rature Compensation (10-30º C)
50% Brix and 50-80% Brix, its wide scale
allows its use for large numbers of determi-
nations. Calibration is made adjusting to zero
with distilled water. Without ATC.
thanks to its wide scale it is used for a large
numbers of determinations
distilled water. Without ATC.
centration in natural or artificial seawater, sea
products, etc. It is also provided with specific
Version 8 Jan-2015
Manual 50100xxx
Model 50301080
Thanks to its wide scale it is used for mea-
alcohol-free
beverages
Calibration is made adjusting to zero with
Scale: 0 - 80% Brix
Accuracy: 1 %
Brix%
Size: 27x40x160 mm
Model 50301180
It presents the same specifications as the
Model 50301185
Refractometer with 2 scales ranging from 0-
Scale:
0 - 80% Brix
(0-50% Brix / 50-80% Brix)
Accuracy: 1%
Size: 27x40x160 mm
Model 50301091
Refractómeter with a 0 - 90% Brix scale,
Calibration is made adjusting to zero with
Scale:
0 - 90% Brix
Accuracy: 0.5%
Size: 27x40x160 mm
Salinity refractometers
Model 50302010
It is specially used for controlling salt con-
Version 8 Jan-2015
and
even
80
80
70
70
60
60
50
50
20ºC
40
40
30
30
20
20
10
10
0
0
Pag. 27
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