Hioki IM3533, Instruction Manual

Page: 364 / 400

15.2 Troubleshooting
356
The measurement
values are exhibiting
excessive variation.
Is the signal level setting too low?
Change the signal level setting.
See (p. 52)
Is an error from "15.3 Error display" (p. 360) being
displayed?
Check the item indicated by the error display,
address the cause, and then perform measure-
ment.
See (p. 360)
If is being displayed,
check measurement conditions such as the fre-
quency and signal level and select conditions
for which
will not be dis-
played.
See (p. 52)
Are you using the instrument in a high-noise environ-
ment?
If you are using the instrument in a high-noise
environment, consider taking the following
measures:
• Use guarding.
• Implement anti-noise measures.
• Separate the sample, measurement cables,
and instrument from the source of the noise
(motor, inverter, electromagnetic switch,
power line, equipment generating sparks,
etc.) or perform the measurement in a sepa-
rate room.
• Plug the instrument into a grounded outlet.
• Use a separate power supply from the
device that is generating the noise.
Are you using a cable that you made yourself?
• Check the wiring method and correct it if
necessary.
• Use a designated cable of the same length
as the cable length setting.
Is the connection cable too long?
Use a designated cable of the same length as
the cable length setting.
See (p. 245)
Are you using a 2-terminal connection to perform
measurement?
Two-terminal connections are susceptible to
the influence of contact resistance. When pos-
sible, use a 4-terminal connection to the sam-
ple’s electrodes to perform measurement.
Add a wait time to allow contact to stabilize be-
fore measurement.
Did you perform open and short compensation?
Perform open and short compensation properly.
See (p. 215), (p. 224)
Symptom Check Item, or Cause Remedy and Reference