High Voltage Insulation / Continuity / Earth High voltage insulation testers MI 3211 TeraOhmHP 10 kV The MI 3211 TeraOhmHP 10 kV is a high power, portable, battery or mains powered test instrument with excellent IP protection (IP65), designed for analysing insulation resistance by using high DC test voltages of up to 10 kV. Because of its robustness (CAT IV measuring category) and high immunity to radiated EM fields, it is best suited for demanding industrial environments. Touch screen or key manipulation via menudriven LCD enables easy and transparent selection of different measurement methods and easy entry of data. Newly designed test leads have coded banana connectors for proper connection and locking to protect them against unwanted or accidental removal. MEASURING FUNCTIONS • • • • • Insulation resistance measurement; Diagnostic test (PI, DAR, DD); Step voltage test; Withstanding voltage test (DC) up to 10 kV; Voltage and frequency measurement up to 999 V TRMS; • Capacitance measurements. KEY FEATURES • Insulation resistance measurements of up to 20 TΩ. • Safety rated category up to CAT IV 600 V to 3000 m. • Dual-case design. • Coded banana connectors with locking feature. • Newly designed HV crocodiles with a better grip. • Li-ion battery 4400 mAh. • Adjustable test voltage (50 V...10 kV) 50 V and 100 V step. • Maximum short circuit/charge current: > 4 mA (mains supply) or >2.4mA (battery supply). • Charging rate for capacitive load <2.7s / μF at 10 kV. • Discharging rate for capacitive load < 0.24 s / μF at 10 kV (mains supply). 8 GB memory SD card for data saving. Burn or breakdown mode. Programmable timers. Automatic discharge of test object after finished measurement. Live voltage detection > 30 V IP65 case rating. User-friendly and intuitive operation. High voltage breakdown detection. Programmable AUTO SEQUENCEs. Auto adjustment function. Measurement results in numerical and graphical form. PC software MESM for downloading and analysing test results and for test report printing. Isolated RS-232 and USB communication ports, Bluetooth interface. High quality accessories, including shielded test leads. High EM interferences protection: Input AC current noise rejection 8 mA, input AC voltage noise rejection 1.5 kV. Averaging of the result (5, 10, 30, 60). Mains and rechargeable battery power supply. APPLICATION • Power transformers; • Measuring transducers in distribution networks; • Testing insulation resistances of rotating machinery and cables; • Production line periodic testing and maintenance; • Troubleshooting and analysis of all kinds of insulation problems; • High voltage generators; • Surge arrestors. STANDARDS Electromagnetic compatibility • EN 61326-1 Safety • EN 61

ORDERING INFORMATION TECHNICAL SPECIFICATION FUNCTION Insulation resistance Riso - measuring ranges Measuring range Resolution 0.01 MΩ … 9.99 MΩ 10 kΩ 10.0 MΩ … 99.9 MΩ 100 kΩ 100 MΩ … 999 MΩ 1 MΩ 1.00 GΩ … 9.99 GΩ 10 MΩ 10.0 GΩ … 99.9 GΩ 100 MΩ 100 GΩ … 999 GΩ 1 GΩ 1.00 TΩ … 9.99 TΩ 10 GΩ 10.0 TΩ … 20.0 TΩ 100 GΩ Measuring range in <100 V 100 GΩ dependence on nominal <250 V 200 GΩ voltage (Un) <500 V 500 GΩ <1000 V 1 TΩ <2500 V 2 TΩ <5000 V 5 TΩ <10 kV 10 TΩ 10 kV 20 TΩ Accuracy in dependence of 5 GΩ 100 V test voltage (at typical Riso 100 GΩ values) 25 GΩ 500 V 500 GΩ 50 GΩ 1 kV 1 TΩ 100 GΩ...