13.1 Trouble Shooting
218
If the cause of the issue remains unclear, reset the system. Doing so will initialize
settings to their factory defaults.
See: 4.5, "Initializing the Instrument (System Reset)" (p. 80)
Measured values
do not stabilize.
• Is the frequency of the
lines being measured 50
or 60 Hz?
The instrument does not
su
pport 4
00 Hz frequency
lines.
The instrument can only be used with
50/60 Hz lines. Lines operating at 400
Hz cannot be measured.
• If the wiring setting is
1P2W/1P3W/3P3W/
3P4W, is voltage input
being supplied?
The instrument may not be
able to pe
rform stable
measurement without volt-
age input.
If not measuring voltage, select the
current-only wiring and set the fre-
quency setting to the measurement
line fr
eque
ncy (50/60 Hz).
See: 4.3, "Changing Recording (Save)
Settings" (p. 69)
Unable to charge
the 9459 Battery
Pack (the Charge
LED
doe
s not
light up).
• Verify that the ambient
temper
ature is within the
range of 10°C to 40°C.
The instrument’s battery can be
charged within the ambient tempera-
ture range of 10°C to 40°C.
See: "Installing (replacing) the Battery
Pack" (p. 24)
• Has the instrument been
stored for an extended
period of time with the bat-
tery pack installed?
The battery pack may have
degraded, signaling that it needs to
be replaced. Please purchase a new
battery pack. Contact your Hioki dis-
tributor for more information. If the
instrumen
t will not b
e used for one
month or longer, remove the battery
pack and store at -20°C to 30°C.
See: "Installing (replacing) the Battery
Pack" (p. 24)
The battery pack
can only be used
for a short period
of time.
• The batter pack’s capacity
may have deteriorated due
to degradation.
Symptom Check Item, or Cause Remedy and Reference
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