Operating Precautions
12
About Inputs and Measurement
• Do not use the instrument with circuits that exceed its rat-
ings or specifications. Doing so may cause it to become
hot, resulting in bodily in
jury.
• To avoid electrical hazards and damage to the instrument,
do not apply voltage exceeding the rated maximum to the
input terminals.
• The maximum input voltage (and the maximum rated volt-
age to earth) for the analog input terminals is 30 V DC rms
(or 60 V DC
). If these limits are exceeded, the instrument
may be damaged and personal injury or death could occur,
so do not attempt measurement.
• Do not leave the instrument connected to test objects in
environments
where a voltage surge might exceed the
dielectric withstand voltage. Doing so could result in dam-
age to the instrument, bodily injury or fatal accident.
• Channels are insulated by semiconductor relays. When a
voltage beyond
the specification is applied between the
channels, the semiconductor relay may short circuit. Please
ensure that a voltage beyond specification, especially a
surge such as a lightning, is never applied. When an abnor-
mal measurement value is observed, please contact your
authorized Hioki distributor or reseller for inspection.
IMPORTANT
Select Hioki 9641 Connection Cable for use as a cable for the
pulse input connector.
The waveform for an open channel may sometimes appear to be influ-
enced by the signals of the other channels being measured. If you do
not like t
his, please set the waveform display of the open channel to
OFF or short-circuit the input terminals of the open channel by connect-
ing the positive and negative terminal.
To Next Page
Loading...
