1.Hand Held salinity refractometer with dual specific gravity and
part per thousand (0/00) scales. Designed specifically for
aquariums, this unit is ideal for rapid, accurate salinity
determinations. Fully automatic temperature compensation(ATC) over
the range of 10° to 30°C eliminates need for temperature
compensation charts. High contrast white on blue for easy
readability. Includes soft-side carrying case.
2.Directions for use:
Using soft cloth to clean the prism and testing prism, take a few
drops of solution, put it on the prism, close the cover plate,
escape from bubbles, to make the solution over the surface of
Put the instrument into the version of alignment or light
department, eyes can observed the field through Eyepiece. Rotate
eyepiece to adjust hand wheel. to make the field of view of blue
and white points clear.The scale of demarcation line is the density
3.Calibration and correction of temperature:
It must revise Zero before measure.First,take few drops of
distilled water,put it on the detection prism,and then screw the
bolt of Zero so that make it reach 0%,Second,clean the detection
prism to inspection.Some models of instruments have to take place
standard liquids of distilled water to revise.
The instrument is precision optical instrument. You should pay
attention to the following matters when it was used and maintained:
(1)It must be careful and cautious when it was used. in accordance
with the use of instruction strictly, can”t loose each connected
component of apparatus, can”t drop,collision, can”t happen drastic
(2)After using it, can”t put it into water for cleaning directly,
should use soft cloth to clean. For optical surface,it cannot be
bruised and scratched.
(3)The instrument should be set in a dry,non-corrosive gases place
to safe keep.
(4)To avoid loss of spare parts of components.