HT Italia COMBI 420 Multifunction Installation Tester

The HT Italia COMBI 420 Multifunction Installation Tester features include: continuity test with 200 mA range; insulation measurement ranges 50, 100, 250, 500, and 1000 VDC; trip out time of RCDs type AC (automatic and manual modes); trip out current of RCDs (automatic and manual modes); loop impedance P-P, P-N, P-PE; loop impedance P-P, P-N, P-PE with high-resolution 0.1 MΩ using the IMP57 optional accessory; protective short circuit current; contact voltage; global earth resistance without tripping RCDs; phase sequence indication; auto function – automatic sequence test of global earth resistance RCD test Insulation and leakage current. HT Italia COMBI 420 Multifunction Installation Tester Functions: Continuity test with 200mA Insulation with 50, 100, 250, 500, 1000VDC Trip out time of RCDs type AC, A Standard and Selective Trip out current of RCDs type AC, A Standard and Selective (up to 1A) Loop Impedance P-P, P-N, P-PE Loop Impedance with high accuracy (with IMP57 optional accessory) Prospective short circuit current Contact voltage Global Earth Resistance without RCD tripping Phase sequence indication AUTO function (Ra RCDtest Insulation) on plug AC TRMS voltage and current Active, Reactive, Apparent power and power factor on single phase system Harmonics voltage/current up the 49th and THD% on single phase system Environmental parameters measure (°C, °F, %RH, Lux, sound level) Measure with remote probe (PR400 optional accessory) Leakage current Data HOLD Contextual help at display Internal memory Optical-USB interface with PC connection