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Issue
No measured value
is displayed.
(Concerning the display of
measured value faults, see
"Confirming measurement
faults" in the Instruction
Manual.)
Auto-ranging is not
Measurement target is a transformer or
selecting a range.
motor.
(The range is not
appropriate.)
Noise may be affecting measurement.
It is impossible
Measured values before zero adjustment
to perform zero
exceed −1% to 50% of each range
adjustment.
full scale, or a measurement fault has
occurred.
The auto-hold function
Measured
is not working
values
(hold operation is not
being canceled).
Measured temperature
Temperature sensor and thermometer
connection
is displayed
incorrectly.
Items to check
No measured value
is shown, even if the
measurement leads are
shorted.
Are unstable.
Do not change.
HIOKI RM3545E965-00
14
Possible causes
The fuse may have
• Cycle the instrument's
tripped.
• When using the multiplexer,
The measurement and
Check whether the
guard terminals may
measurement leads are
be shorted.
damaged.
Auto-ranging is not
Use a fixed range.
able to select a range
for measurement
targets that have high
inductance.
See: Instruction Manual "4.9 Switching to Pure
Resistance Mode (PR)"
There is a problem with
Repeat zero adjustment with
the wiring.
the correct wiring. Since
zero adjustment cannot be
performed if the resistance
value is too high, for example
with a user-made cable,
work to minimize the route
resistance.
See "Measured values are unstable." (p. 1 2)
An appropriate range
Select an appropriate range
has not been selected.
or use auto-ranging.
The temperature
Connect the temperature
sensor or thermometer
sensor by inserting the plug
is not properly
all the way.
connected.
The settings have been
Check the settings.
improperly configured.
A temperature sensor
9451 Temperature Probe is
other than that
not supported.
specified is used.
Solutions
power and then perform the
self-test to check whether
the fuse has tripped.
if the measured value is not
displayed after replacing
the measurement fuse,
the multiplexer unit's fuse
may have tripped. Request
repair.
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