Hioki IM3536, Инструкция по эксплуатации

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226
Troubleshooting
Symptom Cause Remedy and Reference
You are unable to
perform measurement
properly.
An element with its own voltage,
for example a battery, is being
measured.
If there is a high DC voltage, you may damage
the instrument. Avoid measuring the sample.
An element on a circuit board is
being measured.
•You can measure an element on a printed cir-
cuit board if the target element is isolated from
external connections. However, if the target
element is connected to other components or
external circuitry, you will not be able to obtain
a proper measurement.
•You may be unable to measure components
in circuits that are generating a voltage or to
which a voltage is being applied, for example
because they are energized.
A high-impedance element is
being measured in a noisy envi-
ronment.
Use guarding.
See "Appx. 2 Measurement of High Impedance
Components" (p. Appx.3).
The DC bias function is being
used for a sample other than a
capacitor.
Set the DC bias function OFF.
See "DC bias (superimposing a DC voltage on
the measurement signal)(AC)" (p. 60).
The measurement val-
ues differ when a stan -
dard resistor, standard
capacitor, or other
known test sample is
measured.
The known sample measure-
ment conditions and the instru-
ment’s measurement conditions
do not match.
Make sure the measurement conditions match.
The open or short correction
method is wrong.
Perform open and short correction properly. To
perform short correction for the 9140-10, use a
short bar without directly shorting the tip.
See "5.2 Open Correction" (p. 99), and "5.3
Short Correction" (p. 105).
Load correction has been en-
abled.
Set the load correction off.
See "5.6 Load Correction (Correcting Values to
Match Reference Values)" (p. 112).
The delay time from connection
of the sample to measurement
is not long enough.
Ensure there is an appropriate trigger delay and
trigger synchronous output wait time.
See "Trigger (perform measurements with user-
defined timing) (Common)" (p. 63) and "Trig -
ger synchronous output (Applying the signal to
the sample during measurement only) (Com-
mon)" (p. 65).
The DC bias function is being
used while measuring an ele-
ment other than a capacitor.
Set the DC bias function off.
See "DC bias (superimposing a DC voltage on
the measurement signal)(AC)" (p. 60).
AUTO ranging is un-
able to determine a
range.
A high-impedance element is
being measured in a noisy envi-
ronment.
Use guarding.
See "Appx. 2 Measurement of High Impedance
Components" (p. Appx.3).
AUTO ranging is un-
able to determine a
range.
The DC bias function is being
used while measuring an ele-
ment other than a capacitor.
Set the DC bias function off.
Set "DC bias (superimposing a DC voltage on
the measurement signal)(AC)" (p. 60).
Errors
A contact error is gen-
erated even though
the connections are
correct.
The DC bias function is being
used while measuring an ele-
ment other than a capacitor.
Set the DC bias function off.
See "DC bias (superimposing a DC voltage on
the measurement signal)(AC)" (p. 60).
Open correction or
short correction re-
sulted in an error.
The wrong connection method
is being used for open correc -
tion or short correction.
Perform open correction or short correction with
the proper wiring.
See "5.2 Open Correction" (p. 99) and "5.3
Short Correction" (p. 105).