a) In independent mods, if both the buttons are released (OFF INDEXER, CH1 and CH2 are independent from each other. b} If the upper button is pressed (ON SERIES), and the lower button is released, the instrument enters series tracking moods. Foliage outputs from CH positive output terminal {red} and CH2 voltage negative output ermine (lack), and the settings of parallel voltage and current can only be adjusted by CH1.
