Hioki PR8111, Instruction Manual

Page: 12 / 44

Operating Precautions
8
How to connect the adapter:"Connecting the AC adapter" (p. 18)
If you connect the AC adapter while batteries are installed in the instrument, the AC
adapter takes precedence.
Using the AC Adapter
• Use only the supplied Model 9418-15 AC Adapter. AC adapter input voltage range is
100 to 240 VAC (with ±10% stability) at 50/60 Hz. To avoid electrical hazards and
damage to the instrument, do not apply voltage outside of this range.
• To avoid electrical accidents and to maintain the safety specifications of this instru-
ment, connect the power cord provided only to a 3-contact (two-con
ground) outlet.
• Turn the instrument off before connecting the AC adapter to the instrument and to
AC power.
• Before turning the instrument on, make sure the supply voltage matches that indi-
cated on the AC adapter. Connection to an improper supply voltage may damage
the instrument or AC adapter and present an electrical hazard.
• For safety reasons, disconnect the power cord when the instrument is not used and
before connecting it to a device to be tested.
• To avoid damaging the power cord, grasp the plug, not the cord, when unplugging it from
the power outlet.
Connecting Cables
• The maximum input voltage is 250 VDC. Attempting to measure voltage in excess
of the maximum input could destroy the instrument and result in personal injury or
death.
• The maximum rated voltage between input terminals and ground is 300 VAC, DC.
Attempting to measure voltages exceeding 300 V with respect to ground could
damage the instrument and result in personal injury.
• To avoid electrical accidents, confirm that all connections are secure. The
increased resistance of loose connections can lead to overheating and fire.
• To avoid experiencing an electric shock or causing a short-circuit at the input ter-
minals, only insulated crimp contacts should be used on wires being connected to
input pins. (The input terminal pin diameter is M6.)