... /VAccuracy class C2~C5Zero balance ±1%F.STCO ±0.02%F.S/10oCTC SPAN ±0.02%F.S/10oCInput impedance 400±10Ω(ZSF),700±20 ... ΩTemperature range,operating -30~+70oCMaximum safe overload 150%F.SUltimate overload 250%F.SExcitation,recommend 10~12V DCExcitation,maximum 15V DCProtection class ...