Đồng hồ đo điện trở cách điện Kyoritsu 3021 Insulation resistance Test voltage 125V 250V 500V 1000V Measuring range (Auto range) 4.000/40.00/ 200.0MΩ 4.000/40.00/400.0/2000MΩ First Effective Measuring range 0.1~20MΩ 0.1~40MΩ 0.1~200MΩ 0.1~1000MΩ Mid-scale value 5MΩ 50MΩ Accuracy | ±2%rdg±6dgt Second effective measuring range lower 0~0.099MΩ Second effective measuring range upper 20.01~ 200.0MΩ 40.01~ 2000MΩ 200.1~ 2000MΩ 1001~ 2000MΩ Accuracy | ±5%rdg±6dgt Rated current DC 1~1.2mA Output short circuit current 1.5mA max Ω/Continuity Auto range 40.00/400.0Ω Accuracy | ±2%rdg±8dgt Output Voltage on open circuit 5V±20% Output short circuit current DC 220±20mA Fuse Quick acting ceramic fuse 0.5A/600V (Ø6.35×32mm) AC Voltage Range AC 20~600V (50/60Hz) DC -20~-600V/+20~+600V Accuracy | ±3%rdg±6dgt General Applicable standards IEC 61010-1 CAT.III 600V, IEC 61557-1,2,4, IEC 61326-1 (EMC), IEC 60529 (IP40) Dimensions / Weight 105(L) × 158(W) × 70(D)mm / 600g approx. Power source R6P×6 or LR6×6 Accessories 7150A (Remote control switch set), 9121 (Shoulder strap), R6P (AA)×6, Instruction Manual Optional 7115 (Extension Probe), 8016 (Hook type prod), 8923 (Fuse [0.5A/600V]), 9089 (Carrying Case)