7.1 Setting Open Circuit Compensation
273
7
Chap
ter 7 Erro
r Com
pensatio
n
Compensate for errors caused by a fixture or measurement cable.
With open circuit compensation, it is possible to reduce the influence of the floating impedance of the test
cables and thereby to enhance the accuracy of measurement.
It is effective for test samples whose impedance is relatively high.
The comparator decision mode can be set as one of the following:
Error
Compensation
Chapter 7
7.1 Setting Open Circuit Compensation
LCR
ANALYZER
All Compensation
The compensation values are obtained for all test frequencies.
Spot Compensation
The compensation values are obtained at the set test frequency only.
OFF
Open circuit compensation data becomes invalid.
• Before open circuit compensation, always set the cable length.
"7.4 Compensating Measurement Cable Errors (Cable Length Compensation)" (p. 301)
• The measurement accuracy values defined in the specifications are for when open circuit
compensation and short circuit compensation are performed.
• Be sure to perform compensation again after replacing the measuring cable.
You will be unable to obtain correct values if measurement is performed in the compensa-
tion state prior to replacement.
• For SPOT compensation, the open circuit compensation will be valid only when the mea-
surement frequency agrees with the SPOT compensation frequency.
• When performing compensation, make sure that there is no noise source nearby. Noise
may cause an error when performing compensation.
ex. Servo Motor, switching power source, high-voltage cable and etc.
• For SPOT compensation, the open circuit compensation will be valid only when the mea-
surement frequency agrees with the SPOT compensation frequency.
• The compensated value is preserved in the memory of the main unit even when power is
turned off.
• If the setting of the low Z high accuracy mode is changed, the compensation value
becomes invalid.
Before Performing Screen Operations
• Arrange the test leads as they will be when measurement will actu-
ally be performed. Changing the configuration of the leads may
result in compensation not being performed properly.
• Create an open state between the HIGH terminals and LOW ter-
minals of the probes or fixture in accordance with the width of the
measurement object. (Connect H
CUR
and H
POT
, and connect L
CUR
and L
POT.
)
• When the open circuit compensation is performed, execute the
guarding process.
"Appendix 2 Measurement of High Impedance Components"(p. A3)
Summary of Contents for IM3570
Page 2: ......
Page 8: ...Contents vi ...
Page 16: ...Operating Precautions 8 ...
Page 34: ...1 3 Screen Configuration and Operation 26 ...
Page 138: ...4 5 Setting Application Settings 130 ...
Page 160: ...5 3 Normal Sweep 152 When the setting is Procedure Analyzer Initial Screen Press 2 1 ...
Page 272: ...5 10 Equivalent Circuit Analysis Function 264 ...
Page 336: ...9 4 Deleting a Panel 328 ...
Page 410: ...13 3 About Measurement Times and Measurement Speed 402 ...
Page 418: ...14 4 Discarding the Instrument 410 ...
Page 444: ...Appendix 13 Device Compliance Statement A26 ...
Page 447: ...Index3 Index Vertical Axis Scale 183 Voltage limit 60 78 ...
Page 448: ...Index4 ...
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Page 456: ......
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