Leica 10441 User manual

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CONCENTRATION,

8

%

10

12

Product

"B"

REFRACTOMETER

Product

"A"

READING

1
Product

"B"

|

Product

"A"

The

compensated

(18°C)

and
95°F

for
temperatures

(35°C)

so
that

between

the
reading

65°F

measured

10%).

Determine

known

solutions

their
values

(e.g.

by

2-4-6-8-

using
the

solubles

and
quenching

instrument

in
aqueous

solutions used

is
automatically

solutions

of

in

temperature

cutting

heat treating.

fluids

recommended

product

To
calibrate,

be
obtained

prepare

that
exact

from

three

values

the

to

manufacturer.

five

for

accurately

each

refractometer

working,

is

for

used

example,

in
determining

the
hand

total

calibrate

shown

in

your

the
following

instrument

chart,

by
the

however,

method

it
is

recent

years,

for the

refractometers

industry

Leica

has

temperature

found

from
Leica.

practical

In

characteristics

plotted

make

concentrations

instantaneous

to
known

of

of

this

values,

the

visual

product.

product.

will

checks

allow

It

These

is

of

possible

you

unknown

graphs,

to

to

In

applications

compensated

metal

model

temperature

For

1.0
INTRODUCTION

the

10441.

use
and

compensated

care
of

the

hand

Leica

refractometer,

automatic

The

measurement

Before

solution

fluids,

Model

is

using,

to

in

obtain

Brix

10441

of

contact

synthetic

units

graphs

the

showing

manufacturer

the

of
the

0
to

cutting

10°.

and
grinding

scale,

designed

for
the

Instruction

Leica

Industrial

Manual

Fluid

Tester

of

need

in
which

the

not

sample

be

it
is

adjusted

used.

of
the

temperature

for
either

the

of

temperature

the
room

Fig.1

point

the

2.
To

cover

the

hold

instrument

plate

the
instrument

in
contact

toward

with

for

a

reading,

window

the
prism

keep

or

and

evaporation

plate
over

the

to

prism

a
minimum,

without

close

delay.

the
cover

Unfinished

absorb

give
an

some

incorrect

wood

of
the

reading.

is

water

not
suitable

in

To

the

reduce

specimen

since

it
may

and

provided.

plastic

not
use

stirring

glass,

In
the

metal

rod

absence

is

or

a

the

good

of

fingers.

the

substitute.

dipstick,

A
common

do

little
significance.

Sharpness

refractometers

measured.

limited

effect.

of

Undissolved

Color,

except

extreme,

is
of

the

is

dividing

affected

solids

by

line

the

in

have

product

all

very

sufficiently

This

instrument

with

on
returning

your
Leica

Fluid
Tester.

can

your

be

dealer

to

to

corrected

the

or
with

Leica

for
instructions

introduce

factory.

by

an

returning

You

error

should

on

the

the

consult

scale.

accuracy

water

reading

the
instrument

as

of

a

of

sample.

zero.

your

might

It

instrument

is

This

possible

shift

should

the
components

by

that

hive

using

dropping

you

distilled

a

2.0

All

adjustments

instruments

are

are

sealed.

factory

You

calibrated

may
check

and

the

the

ABOVE

ACCURACY

150°F.

dispersed.

face,

always

To

use

prevent

the
dipstick

scratching

which

the

is

prism

INSTRUMENT

the
prism.

NEVER

TO

EXPOSE

TEMPERATURES

THE

It

work

any

is

contaminants

preferable

area
rather

to

than

obtain

in
the

from

liquid

the

a
reservoir

sample

will
be

from

better

so

the

that

next

reading

never

sample

use

will

gritty

is

result.

loaded

cleaning

Do

an

not

erroneously

compounds

use
hot
water

to

or

clean

fuzzy

and

(A)

dipstick,

on
the

to
expose

face

(B)

of

place

the

the

prism

prism.

a
few

and,

(C)

drops

using

of
the

the

sample

moistened

and

with

or
cover

cover

a
soft

plate

plate.

with

cloth

is
not

well

cleaned

before

the

water

Dry

or
tissue.

the

for

prism

wiping

If
the

and

prism

the

cover

prism

surface

plate

2.0

as

1.
Hold

shown

OPERATION

the

in

instrument

Fig.

1.
Lift

in

the

a
horizontal

cover
plate

position

3.
Use

a
soft

cloth

or
soft

tissue

paper

the

Good

illuminate

is
sometimes

light

daylight

source

the

inadequate.

scale.

or

until

artificial

Distant

best
results

light

fluorescent

is

are

adequate

obtained.

light

to

Thereafter

example

concentration

solution

reading

for
product

is

has

in

equal

“B”.

to
5%

for
product

“A”
or

6%

obtainable

the
instrument

between

should

light

be

and

tilted

dark

with

boundary,

respect

unknown

a

the

to

refractometer

chart

an
accuracy

solutions

below,

if

reading

of

an

can

.25%.

unknown

be

of

read

For

5,
this

in

Until

immediately

dark

crosses

one
has

the

recognize

had

scale.

sufficient

the
optimum

experience

contrast

to

hand

refractometer

and
know

refractometer.

values

readings

on

Plot

the

on

horizontal

a

the

chart

vertical

with

x-axis.

y-axis

other

eye-piece

where

illuminating

the

and

dividing

take

source.

the

line

reading

between

Look

at

through

light

the
point

and

the