High Voltage Insulation / Continuity / Earth Professional insulation testing with powerful diagnostic tools MI 3209 TeraOhmLT 10kV The MI 3209 TeraOhm LT 10kV is a portable insulation resistance tester for insulation testing with DC voltages of up to 10 kV. Boasting excellent IP protection (IP65) and being both mains and battery powered, it is at home in even the most demanding working environments. MEASURING FUNCTIONS • Insulation measurement; • Diagnostic test (PI, DAR, DD); • Step voltage test; • Withstanding voltage test (DC) up to 10 kV; • Voltage and frequency measurement up to 550 V TRMS. KEY FEATURES • Measurement range of insulation resistance up to 10 TΩ. • Adjustable test voltage in steps of 50 V (50 V ... 1 kV) and 100 V (1 kV ... 10 kV). • Programmable timer. • Capacitance measurement. • Charging rate for capacitive load < 3 s / µF at 10 kV. • Automatic discharge of test object after completion of measurement. • Guard terminal. • High voltage breakdown detection. • Auto adjustment function. • Measurement results in numerical and graphical form. • PC software HVLink PRO for downloading and analysing of the test results and test report printing (optional). • Isolated RS-232 and USB communication ports. • High quality accessories including shielded test leads in standard set. • High EM interferences protection: input AC current noise rejection (1 mA∞600 V) and additional averaging of the result (5, 10, 30, 60). • CAT IV / 600 V. • Mains and rechargeable battery power supply. APPLICATION • Testing of power transformers; • Measuring transducers in distribution networks; • Insulation resistance testing of rotating machinery and cables; • Production line periodic testing and maintenance; • Troubleshooting and analysis of all kinds of insulation problems; • Testing of high voltage generators; • Testing of surge arrestors. STANDARDS Electromagnetic compatibility • EN 61326 class A Safety • EN 61010-1 (instrument); •

ORDERING INFORMATION TECHNICAL SPECIFICATION FUNCTION Measuring range ±(5% of reading + 3 digits) ±(5% of reading + 3 digits) ±(5% of reading + 3 digits) ±(5% of reading + 3 digits) ±(5% of reading + 3 digits) ±(5% of reading + 3 digits) ±(15% of reading + 1 digits) Test voltage Insulation leakage current Dielectric absorption ratio (DAR) Voltage AC/DC Nominal mains power supply Battery power supply Battery operation time > 3 h continuous testing of 100 MΩ load @ 10 kV > 5 h continuous testing of 100 MΩ load @ 5 kV 320 x 240 dots matrix display with backlight Overvoltage category 6.5 kg (with...