Introduction
4
Test sample
Warning
Some samples or chemicals
require
protective
gloves,
glasses and mask in a well
ventilated room.
Splashing chemicals may injure
your eyes or skin.
Windpipe may be hurt if toxic
fume is inhaled.
Do not use chemicals that may
generate flammable gas or work
in such atmosphere.
Be aware of a risk of explosion
inside the room.
Caution
Samples of high viscosity or those that
can easily generate air bubbles may
lower
repeatability
or
result
in
measurement error.
Do not use strong base
(such as
NaOH, KOH)
, strong acid
(such as
HCl, H
2
SO
4
, HNO
3
)
or hydrofluoric
acid as test sample or cleaner. It
may corrode the measurement
cell.
Measuring cell will become hot.
Do not touch hot surface or hot
waste liquid.
Samples like milkfat may lower
repeatability or result in measurement
error as the nature of such samples can
be changed by oscillation.
Storage
Caution
Use our shipping box to
store the equipment.
Thoroughly clean and dry
the measuring cell if you
do not plan to use the
equipment for a certain
period of time.
Do not store where
temp is extremely
high or low, where
humidity is high or
where is dusty.
Other cautions
Caution
Never overhaul or repair the
equipment
unless
you
are
authorized to do so by KEM.
Overhaul or repair by an
unauthorized person may result in
physical damage caused by
electrical
shock,
fire
or
unexpected malfunction.
Do not operate the unit in any
way other than specified in this
manual to avoid electric shock,
fire or malfunctioning.
Do not use solvent like alcohol,
acetone or thinner for cleaning
the unit.
Using such solvents may deform,
Do not touch the screen with a
sharp pointed pen or pencil in
order to avoid damage. Use
the supplied stylus.
Summary of Contents for DA-640
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