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