Open compensation on an LCR meter

QI am trying to conduct open compensation on my LCR meter by selecting ALL, but an error appeared midway and I could not complete this procedure. What is the issue?

A

Please conduct open compensation by placing a grounded metal plate under the probe.  You can also use the top of the LCR meter as a substitute for the metal plate.  An open probe is more susceptible to noise because its impedance approaches infinity.  You can achieve greater success at conducting open compensation correctly if you can reduce the effects of noise by using a grounded metal plate.