Hioki LR8432-20, Instruction Manual

Page: 42 / 238

2.3 Connecting Measurement Cables to the Instrument
34
Connect the appropriate cables for the intended recording application.
• When recording voltage fluctuations or temperature changes (p. 36)
• When recording the heat flow
(p. 37)
• When recording pulse signals (p. 39)
Be sure to read the “Operating Precautions” (p. 8). before connecting the
cables.
Connecting to the Analog Input Terminals
2.3 Connecting Measurement Cables to
the Instrument
• The maximum input voltage (and the maximum rated volt-
age to earth) for the analog input terminals is 30 V AC rms
(or 60 V DC). If the voltage is exceeded, this device will be
damaged and personal injury will result. Therefore, do not
perform measurement in this case.
• Do not leave the instrument connected to test objects in envi-
ronments where a voltage surge might exceed the dielectric
withstand voltage. Doing so could result in damage to the
instrument, bodily injury or fatal accident.
• Do not connect a cable to the instrument while it is con-
nected to the object to be measured. Otherwise, an electric
shock accident may occur.
• To avoid short-circuit accidents, make certain that connec-
tions are secure.
• 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, espe-
cially a surge such as a lightning, is never applied. When an
abnormal measurement value is observed, please contact
your authorized Hioki distributor or reseller for inspection.