iiiiii
iv
DANGERS
Be sure to follow the warnings and notices about use from
your PC maker when installing and using this unit.
Do not take apart, repair or modify the main unit. Doing so
may cause fire or electrocution.
If water or a foreign body enters in this unit, turn the power
off and remove the batteries. Continued use may cause fire
or electrocution.
Do not use this unit in wet or humid places, such as a
bathroom.
Store RTR-
57
U main units, batteries and communication
cables out of the reach of children. It is dangerous to touch
or swallow batteries.
Connecting a communication cable that is connected to a
PC or a data logger to the telephone cable may cause fire or
damage.
If any smoke or strange smells are emitted from the unit,
immediately turn the power OFF and remove the batteries.
Continued use may cause fire or electrocution.
Do not drop the unit, or expose the unit to a strong impact. If
that happens to the unit, immediately turn the power OFF
and remove the batteries. Continued use may cause fire or
electrocution.
CAUTIONS
This unit is not water-resistant. If the unit gets dirty, wipe it
with a clean cloth and a mild detergent.
Do not put your fingers or foreign matter into the
communication port.
Battery life depends on the kind of the batteries,
measurement environment, communication frequency,
ambient temperature, and battery quality.
Do not use batteries other than specified. Doing so may
cause fire or damage.
Do not use an AC adaptor other than specified. Doing so may
lead to fire or damage.
Battery terminals may provide insufficient contact due to age
or vibration. This may lead to data loss.
If the unit will not be used for period of time, for safety
reasons please remove the battery. If left in the unit, it may
leak and lead to malfunctioning.
Condensation may occur if the unit is moved from one
environment to another where the difference in temperature
is great. Use the unit in an environment where the ambient
temperature is from
0
to
50
℃
（
32
to
144
゜
F
）
and the
humidity is
90
％
RH (no condensation) or less.
