... between voltage input terminal and meter shell, parts between the iron core of the clamp-current transformer and secondary windings can ... measured signal,(50±0.5)Hz(e) Position of Measured current carrying conductor in the nipper jaw, Optional position.(f) ... 3 times per secondIII. Power Supply, Single 9V laminated cell,current of power is less than 5mAIV. DimensionMeter shell, 192x95x55mmNipper shell ...