Hioki Power HiTester 3193, Instruction Manual

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Notes on Use
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DANGER
Always connect the powermeter input (including clamp) to the
secondary side of the breaker. On the secondary side of a breaker,
even if the lines are shorted the breaker can trip and prevent an
accident. On the primary side, however, the current capacity may be
large, and in the event of a short-circuit there may be a serious
accident.
The maximum input voltage and current for this unit depend on the
input unit being used. Do not apply an input exceeding the maximum
input voltage and current specified for the input unit. Exceeding the
maximum input voltage or current could damage the unit or cause a
serious accident.
WARNING
Before turning on the power, make sure that the voltage of the power
supply being used matches the supply voltage indicated on the rear
panel of the unit. If an attempt is made to use an improper supply
voltage, there is danger of damage to this unit and of life-threatening
risk to the operator.
The power switch has a microgap construction, and it is therefore
essential to use it close to a power outlet. When the unit is not in
use, and while making connections to the circuit being tested, isolate
the unit electrically from the power supply, for example by removing
the power cord plug from the outlet.
To avoid electrical accidents and to maintain the safety
specifications of this instrument, connect the power cord provided
only to a 3-contact (two-con ground) outlet.
Do not remove the case of the unit. There are components inside
carrying high voltages or becoming hot, and this could cause an
electric shock accident.
Do not use the unit where it may be exposed to corrosive or
explosive gases. The unit may be damaged, or explosion may occur.
Notes on Use
In order to ensure safe operation and to obtain maximum performance from
the unit, observe the cautions listed below.