233
Troubleshooting
11.2 Troubleshooting
If damage is suspected, read “Before returning the instrument for repair” (p. 233) and “11.3
Dialogs” (p. 236) to remedy the issue. If the issue cannot be resolved, contact your authorized
Hioki distributor or reseller.
Before returning the instrument for repair
Check the following items.
Issue
Cause
Solution and where to find
additional information
The time and date are
significantly deviated after the
instrument was turned on.
A backup lithium battery is
installed in the instrument. The
service life of the backup battery
is about 10 years.
If the battery requires replacement,
the battery cannot be replaced by the
customer. Contact your authorized
Hioki distributor or reseller.
Nothing is shown on the
screen when the power switch
is turned on.
The power cord is not connected
to the instrument.
The power cord is improperly
connected.
Verify that the power cord is
connected properly.
See “2.4 Supplying Power to the
The keys are not functioning.
The instrument is in the key-lock
state.
Press and hold the
REMOTE/
LOCAL
key for at least 3 s to cancel
the key-lock state.
The screen does not react even
when you use the touchscreen.
•
The instrument is in the key-
lock state.
•Foreign material, such as dust,
settles on the touchscreen.
•Press and hold the
REMOTE/
LOCAL
key for at least 3 s to
cancel the key-lock state.
•Remove the dust or other foreign
material.
See “Replaceable parts and service
The instrument’s settings
cannot be changed.
The instrument is performing
integration or stopped performing
integration.
Perform an integrated value reset
(data reset).
See “3.3 Integrating Current and
The instrument cannot display
any measured voltage or
current values.
The voltage cords and current
sensors are improperly
connected.
Check the connections.
The input channel and display
channel do not match with each
other.
(For example, this issue will arise
if the input channel has been set
to Ch. 1 while a page other than
the
CH1
page has been being
displayed.)
Use the
CH
keys for channel
selection to display the page for the
input channel.
The active power is not
displayed.
The voltage and current range
settings is improperly configured.
Set the voltage and current ranges
properly.
See “Voltage range and current
Maintenance and Service
HIOKI PW8001A961-00
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