C.4 Explanation of display and symbols a) Digital display The display can show up to '3999' and the polarity (-)is automatically displayed (for negative voltages and reversed polarity). The red test lead must be plugged into this socket when voltage or resistance measurements, continuity check or logic tests are performed. E) COM = common socket Except for capacity and inductance measurements, the black test lead must be plugged in here for all measurements (common socket means minus, '-'or ground socket) f) V/Ohm socket.
D) mA socket The red test lead must be plugged in here for DC or AC current measurements to 400 mA max!, but only when the operating mode switch is set to '400mA'.
When measuring current,the operating mode switch must never be set to voltage (mV or V) or to any other switch position other than current measurement (mA or A). Arranged in a semi-circle,the various basic measurement ranges selectable by rotating the switch are: mV = millivolt AC/DC (milli = 10 exp.-3) V = Volt AC/DC 400mA = milliampere AC/DC 20A = Ampere AC/DC = Continuity test W = Resistance measurement mH = Inductance measurement CAP = Capacity measurement LOGIC = Logic test c) 20 A socket For DC or AC current measurements up to 20 A max.(!), the red test lead must be plugged in here.
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