Metria PREF-B82-001 Mode D'emploi

METRIA ETRIA
Portable Portable analogue r
METRIA METRIA
Portable analogue Portable a nalogue refractometer refractometer
1. Contains:
Refractometer, Refractometer transfer pipette transfer pipette
screwdriver, calibration solution screw driver, calibration solution driver, calibration solution
(only for PREF (only for PREF-B82 B82-001 and PREF 001 and PREF-
B92-001), cal 001), calibration block (only ibration block (only ibration block (only
for PREF-B82-001 and PREF for PREF 001 and PREF-
001) and 001) and soft cloth soft cloth.
2. Preparation: Preparation
Aim the refractometer front end Aim the refractometer front end Aim the refractometer front end Aim the refractometer front end
into a bright light source and to a bright light source and to a bright light source and to a bright light source and
adjust the diopters ring until the adjust the diopters ring until the adjust the diopters ring until the adjust the diopters ring until the
reticle can be seen. reticle can be seen reticle can be seen
3. Calibration: Calibration
A: (For A: (For PREF-B20 B20-001, PREF 001, PREF-B32,
001, PREF PREF-B50-001 001, PREF-AL6
and PREF-AL7-001 and PREF 001) Open de cover Open de cover
lid, drop one or two drops o lid, drop one or two drops o lid, drop one or two drops of lid, drop one or two drops o
distilled water on the prism distilled water on the prism distilled water on the prism distilled water on the prism
surface, press the lid to urface, press the lid to close it and urface, press the lid to close it and
adjust adjust adjust adjust the the the the screw screw screw screw until until until until
light/blue boundary coincides with light/blue boundary coincides with light/blue boundary coincides with light/blue boundary coincides with
the null line. the null line.
refractometer efractometer
B: (For PREF-B82-001 and PREF B: (For PREF B: (For PREF
B92 92-001) Open th Open the cover lid, drop
one or two drops o one or two drops of calibration one or two drops o
solution on the polished surface of solution on the solution on the
the calibration block. Open the the calibration block. Open the calibration block. Open the calibration block. Open
cover plate, stick the cali cover plate, stick the cali cover plate, stick the cali cover plate, stick the calibration
block on the prism surface block on the block on the
press press it lightly to avoid sliding
down. Rotate and adjust the down. Rotate and adjust the down. Rotate and adjust the down. Rotate and adjust the
-B92-
calibration screw until calibration screw until the light calibration screw until
coincides with the reference line coinci des with the reference line des with the reference line
(set at Brix 78.8%). (set at Brix 78.8%).
4. Measurement: Measurement:
Open the cover Open the cover Open the cover plate, clean the
prism surface prism surface
drop one or two drops of the drop one or two drops of the drop one or two drops of the drop one or two drops of the
solution to measure. Close the solution to measure. Close the solution to measure. Close the solution to measure. Close the
cover plate and hold it firmly to cover plate and hold it firmly to cover plate and hold it firmly to cover plate and hold it firmly to
read the scale of light and dark read the scale of light and dark read the scale of light and dark read the scale of light and dark
boundary. boundary.
AL6-001
5 5. Maintenance: Maintenance:
After measurement, clean the After measurement, clean the After measurement, clean the After measurement, clean the
prism surface and the cover pl prism surface and the cover pl prism surface and the cover pl prism surface and the cover plate
the the the the
with a moist gauze. Calibration with a moist gauze. with a moist gauze.
with liquids and samplings must with liquids and samplings must with liquids and samplings must with liquids and samplings must
be done on the same temperature be done on the be done on the
001 and PREF-
e cover lid, drop
f calibration
surface of
prism surface and
tly to avoid sliding tly to avoid sliding
the light
clean the
with a soft paper, soft paper,
Calibration
same temperature
1. Prism 1. Prism
2. Cover Plate 2. Cover Plate
3. Calibration screw 3. Calibration screw 3. Calibration screw
4. Mirror tube 4. Mirror tube
5. Diopter ring 5. Diopter ring
range. If the temperature changes the temperature changes the temperature changes the temperature changes
noticeably the device should be noticeably the device should be noticeably the device should be noticeably the device should be
calibrated again. calibrated again.
Do not use water for cleaning Do not use water for cleaning Do not use water for cleaning Do not use water for cleaning
after use. It could damage the after use. It could damage the after use. It could damage the after use. It could damage the
device interior. rior.
This This This This is is is is a a a a precision precision precision precision
instrument. Handle it gently and instrument. Handle it gently and instrument. Handle it gently and instrument. Handle it gently and
take good care of it. Do not touch take good care of it. Do not touch take good care of it. Do not touch take good care of it. Do not touch
or scratch the optical surface. or scratch the optical surface. or scratch the optical surface. or scratch the optical surface.
Please keep it in a dry, clean and Please keep it in a dry, clean and Please keep it in a dry, clean and Please keep it in a dry, clean and
non-corrosiveness corrosiveness corrosiveness corrosiveness environment, environment, environment, environment,
to prevent the surface from to prevent the surface from to prevent the surface from to prevent the surface from
turning mouldy or damaged. turning mouldy or damaged. turning mouldy or damaged.
5. Temperature Temperature
compensation: compensation:
This ATC device contains an This ATC device contains an This ATC device contains an This ATC device contains an
Automatic Automatic Automatic Automatic Temperature Temperature Temperature Temperature
Compensation system that allows Compensation system that allows Compensation system that allows Compensation system that allows
the user to concentrate on the the user to concentrate on the the user to concentrate on the the user to concentrate on the
measurements. The compensation measurements. The compensation measurements. The compensation measurements. The compensation
range is from 10°C to 30°C range is from 0°C to 30°C.
optical optical optical optical