METREL MD 9070 Manuel D'utilisation page 15

MD 9070 Insulation/Continuity Digital Multimeter Operation
COMPARE mode
This mode uses a preset insulation resistance threshold value for PASS/FAIL
measuring comparison. The LCD annuciator turns on when the reading is
higher than the selected threshold value. On the contrary, the LCD annuciator turns
on and the meter chirps when the reading is below such value.
To enable, press the COMPARE button momentarily. The LCD annuciator turns on.
Press the COMPARE button momentarily again to select the preset threshold values in
sequence. Last threshold values selected for each test voltage range will be saved
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