YOKOGAWA CA71 HANDY CAL, Руководство пользователя

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IM CA71-E
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Before Starting Source/Measurement
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App
3. Before Starting Source/Measurement
NOTE
• Use the instrument under the following environmental conditions if precise
source or measurement is your requirement:
Ambient temperature range: 23±5°C; ambient humidity range: 20 to 80% RH
(non-condensing)
When using the instrument within a temperature range of 0 to 18°C or
28 to 50°C, add a value based on the temperature coefficient shown in
Chapter 12, “Specifications (page 12-1),” to the given accuracy rating.
• When using the instrument at an ambient humidity of 30% or lower, prevent
electrostatic charges from being produced, by using an antistatic mat or any
other alternative means.
• Condensation may occur if you relocate the instrument from places with
low temperature and humidity to places with high temperature and humidity,
or if the instrument experiences any sudden temperature change.
In that case, leave the instrument under the given ambient temperature for
at least one hour to ensure that the instrument is free from condensation,
before using the instrument.
■ Installing or Replacing the Batteries
WARNING
To avoid electrical shock, always remove the source or measurement lead
cables from the object under test, as well as from the instrument itself.
CAUTION
• To avoid the risk of fluid leakage or battery explosion, install batteries with
their positive and negative electrodes correctly positioned.
• Do not short-circuit the batteries.
• Do not disassemble or heat the batteries or throw them into fire.
• When replacing batteries, replace all of the four batteries at the same time
with new ones from the same manufacturer.
• If the instrument will not be used for a prolonged period, remove the
batteries from the instrument.