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What should I do when the "OVLD" message is displayed on the 4263B?

"OVLD" is displayed on the LCD when the measured impedance is out of the measurable range. When this message is displayed, check whether the selected measurement range is appropriate or not. If not appropriate, try setting the 4263B to auto range mode. The selectable measurement ranges are shown in Table 3-1 of the 4263B Operation Manual.