10
Operating Precautions
Before switching the current sink (NPN) and the current source (PNP)
CAUTION
You must not operate the EXT.I/O MODE changing over switch (NPN/PNP) during
Power-ON status of the instrument.
Set the NPN/PNP based on devices that are externally connected.
Before connecting the EXT.I/O terminals
WARNING
• The EXT.I/O of the instrument cannot be applied to from an external power. Do
not apply external power to the instrument. (The ISO_5V terminal of the EXT I/O
connector is a 5 V (NPN)/-5 V (PNP) power output.)
To avoid electric shock or damage to the instrument, always observe the
following precautions when connecting to the connector.
• Always turn off the main power switch to the instrument and to any device to be
connected before making connections.
• Be careful to avoid exceeding the ratings of the signal of the EXT.I/O terminals.
(p. 111)
During operation, a wire becoming dislocated and contacting another
conductive object can be serious hazard. Use screws to secure the external
connectors.
Precautions during shipment
When shipping the instrument, observe the following.
Hioki cannot be responsible for damage that occurs during shipment.
CAUTION
During shipment of the instrument, handle it carefully so that it is not damaged due to a
vibration or shock.
CD disc precautions
IMPORTANT
• Exercise care to keep the recorded side of discs free of dirt and scratches. When writing text
on a disc’s label, use a pen or marker with a soft tip.
• Keep discs inside a protective case and do not expose to direct sunlight, high temperature, or
high humidity.
• Hioki is not liable for any issues your computer system experiences in the course of using this
disc.
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