... 1min when testing.II. Insulation ResistanceBetween meter circuit and meter shell, between the two voltage input terminals≥10MΩTechnical parameters:I. ... carrying conductor in the nipper jaw, Optional position.(f)Amplitude range of measured signal when measuring phase, Phase U1-U2, ... halfII. Sampling Rate, 3 times per secondIII. Power Supply, Single 9V laminated cell,current of power is less than 5mAIV ...