Hioki BT5525, Instruction Manual, Page: 195 / 215

195
Troubleshooting
10.2 Troubleshooting
If damage is suspected, read the “Before requesting repair” section to remedy the problem. If this
does not help you, contact your authorized Hioki distributor or reseller.
When an error is displayed on the LCD screen, repair is necessary.
See “10.3 Error” (p. 197)
For command, execution, and parameter errors during a test, only a buzzer sounds without any
message.
When the cause is unknown
When the cause is unknown, reset the system.
All the settings are restored to the default settings at the time of shipment.
See “5.9 Initializing the Instrument (Reset)” (p. 75)
Before requesting repair
Measurement
Symptom Cause Solution Reference
The measured value
does not appear.
• The auto range is not confirmed. •Set a longer test time.
p. 40
•A long sampling time is set. •Set a shorter sampling time. p. 38
The voltage is not
output.
•The test lead is broken. •Check the continuity of the test lead
using a tester.
–
The set voltage is
not output.
•The current limit function limits the
current flowing through the DUT.
•Check the resistance value of the
load and set an appropriate current
limit value.
•Example: When the current limit
value is set to 0.5 mA,
the set voltage to 500 V,
and the resistance load
to 400 k
Ω
, the voltage
only goes up to 200 V.
p. 64
The measured value
is not stable.
•The power supply frequency setting
is not correct.
•Change the power supply
frequency to a setting appropriate
for the customer’s environment.
p. 74
•A load with an electrostatic
capacitance is connected.
•It takes time for the measured
value to be stabilized depending on
the electrostatic capacitance. Set a
longer test time.
p. 40
• The measured value is affected by
noise.
•Review the test environment so
that the measured value is not
affected.
p. 205
[U. FAIL] and
[L. FAIL] light up at
the same time.
•The range setting does not match
the set comparator upper/lower
limit values.
•Set the comparator upper/lower
limit values according to the display
range of the set range.
p. 44
•BDD judgment is enabled. •A BDD count of 1 or greater results
in a U. FAIL and L. FAIL judgment.
Disable BDD judgment if this
functionality is not necessary.
p. 63
Maintenance and Service
HIOKI BT5525A961-00