Inside the 1902
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The ECG daughterboard, designated the CED1902-02, provides
medical isolation designed to meet EN60601-1 isolation
standards. It has input lead switching, so the one connector can
measure differential (or resistively summed) voltages between
four electrodes, nominally Left arm, Right arm, Left leg, and
Vagus.
Overall 1902 voltage gain is selectable between ×100 and
×100,000.
CED1902-02 – the ECG daughterboard