3-2
IM CW240E
3.1
Precautions for Use
If you are a first-time user, always read the "Precautions for Safe Use of the
CW240" on pages 6 through 11.
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Do not place any objects on the Instrument.
Do not place another device or a container filled with water on the instrument,
otherwise, the instrument may become defective.
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Moving the Instrument
Before moving the instrument, check that the power cord and all other cables
are disconnected. Hold the instrument with both hands when moving it.
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Input terminals
Do not bring a charged substance close to the signal terminals, otherwise the
internal circuitry may be destroyed. Do not apply any mechanical shock to the
signal terminals because it might be transformed into an electrical noise and
input into the instrument.
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Protection of the case or operation panel
Do not pour volatile chemicals on the case or operation panel or leave any
rubber or PVC product in contact with the case or operation panel for a
prolonged period, otherwise the case and/or operation panel may be discolored
or deformed.
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Cleaning
When cleaning the case and/or operation panel, disconnect the power cord from
the outlet and gently wipe the external surfaces with a soft clean cloth. Do not
use chemicals such as benzine or thinner, otherwise the instrument may be
discolored or deformed.
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Display screen
When the instrument is shipped from the factory, the LCD display screen is
covered with a protective film. Remove it before using the instrument.
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After use
Disconnect the power cord from the wall outlet after use.
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Long absence of use
If the instrument will not be used for a prolonged period, remove the batteries
(AA-size alkaline batteries or NiMH battery pack).
Chapter 3 Preparation for Safe Measurements