Hioki Power HiTester 3193, Instruction Manual

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3.9 Operations During Power Failure
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CAUTION
・ In the DC and AC+DC modes, after the power is restored, an offset
due to the circuit design may be output. In some cases the data may
be invalid.
・ When the unit is powered off as a result of a power failure, continuing
to input voltage and current may damage the unit.
Measurement
data
3.9 Operations During Power Failure
Screen display
The screen display goes blank, and after power restoring redisplays the
screen. However, the
STATUS
or
FDD
screen is displayed before power failure,
the MEAS screen for channel 1 is redisplayed.
If the display data was being held when power was lost, all of the data that
was being held is not retained.
Integration data ・ Manual integration
A power failure is treated as a zero input and zero elapsed time; after the
power is restored integration restarts.
・ Timer integration
A power failure is treated as a zero input and zero elapsed time; after the
power is restored integration restarts, and stops when the timer time has
elapsed.
・ Real-time control integration
If the power failure starts and ends while the unit remains on standby, there
is no effect.
If a power failure starts while the unit is on standby, and ends after the set
start time, integration starts from the time when the power is restored. In this
case the interval from the set start time until the power is restored is treated
as a zero input. The elapsed time is shorter than time from start to stop.
A power failure during integration operation is treated in the same way as
for timer integration.