VOLTCRAFT VC-13 Bedienungsanleitung Seite 35

If a minus "-" appears in front of the measured value for direct voltage, the measured
voltage is negative (or the measuring lines are swapped).
As soon as "OL" (= overflow) appears in the display during voltage measurement, you
have exceeded the measuring range.
As soon as "ALL" (= overflow) appears in the display, you have exceeded the measuring
range or the measuring circuit is interrupted.
The voltage range "v" has an input resistance of >10 MOhm.
The measuring lines have an intrinsic resistance of approx. 0.005 kΩ (5 Ω). This must
be considered in resistance and continuity testing.
If you carry out a resistance measurement, make sure that the measuring points you
touch with the measuring prods are free from dirt, oil, solderable lacquer or similar. Such
circumstances can falsify the measured result.
A continuity value of less than approx. 30 Ohm is identified as continuity; in this case a
beep sounds.
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