Hioki IM3536 - 5.3 Short Correction

99
Open Correction
5.2 Open Correction
With open correction, it is possible to reduce the inuence of the oating impedance of the mea-
surement cables and thereby to enhance the accuracy of measurement. It is effective for measure-
ment samples whose impedance is relatively high.
There are the following three methods for setting the open correction.
All correction
• The correction values are obtained for all measurement frequencies (p. 100).
• The range of measurement frequencies to correct can be set.
See "Correction range limitation function (to shorten the correction time)" (p. 101).
Spot correction
The correction values are obtained at the set measurement frequency only (p. 103).
Off
Open correction data becomes invalid (p. 111).
Before performing open correction
1
Review the information shown under "Check the following before performing correction:"
(p. 97).
2
Follow the instructions in "5.1 Setting the Cable Length (Cable Length Correction)" (p. 98).
3
Arrange the measurement cables, probes, and xtures as they will be when measurement
will actually be performed.
Changing the conguration of them may result in correction not being performed properly.
For more information about how to connect the instrument, see "2.4 Connecting the Measurement
Cables, Probes, or Fixture" (p. 35).
4
Adjust the distance between the HI and LO terminals of the measurement cable or Hioki op-
tional probe or xture to the width of the measurement sample and place them in the open
state
*
.
(What constitutes the open state varies with the measurement cable, probe, or xture being used
[p. 2 to p. 5]. For more information, review the appropriate user manual.)
*: Dened as when the H
CUR
terminal and H
POT
terminal, as well as the L
CUR
terminal and the L
POT
terminal, are connected while the HIGH terminal and LOW terminal are not connected.
5
Perform guarding.
(See "Appx. 2 Measurement of High Impedance Components" (p. Appx.3).)
Perform open correction after completing the above procedure.
See "All correction" (p. 100), and "Spot correction" (p. 103).
5
Error Correction