Hioki Super megohm SM7110 - Setting Resistivity Calculation (Resistivity Measurement Function)

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Contact Check (Various Setting)
4.10 Contact Check (Various Setting)
While measuring the insulator, if a measurement xture of the measurement system is not in
contact with the measured object, even defective insulation may be wrongly determined to be pass.
To avoid such erroneous judgment, the contact check function is used to check if the measurement
xture is brought into contact with the measured object to be measured.
Moreover, because inaccurate contact checks are performed if the capacitance is changed with the
cable length changing, the correction is required depending on the cable length.
Because the instrument can automatically correct the cable length, the auto-correction of the cable
length allows the instrument to be used immediately after the cable length is changed.
To perform the contact check accurately, congure the following settings.
Procedure to display the settings screen: (Measurement screen) MENU key >
[C.CHK] tab
[FREQ] Contact check frequency
[WORK.C] Capacitance of object to be measured
[CABLE] Length of measurement cable
[DELAY] Delay time
Setting of [FREQ]
Set the frequency of the signal applied during the open correction or the contact check.
245 kHz, 300 kHz (default setting: 300 kHz)
4
Applied Measurement