Benning CM 9-1 True RMS leakage current clamp. Fault-related leakage currents are caused by insulation weaknesses or damage. With the CM 9-1, all sources of error can be located quickly and precisely. Preventive measurements can prevent possible damage from uncontrolled leakage currents in advance. Reliable and easy detection of insulation faults, e.g. defective cables, loose terminals, dirt, moisture. Measurement of leakage, differential, protective conductor and load currents in electrical systems, devices and machines. Digital display. 4-digit LCD display (6000 points). With screen backlight. Leakage current measurement. Current measuring range/AC 0.000001 A - 60 A. Current type alternating current. Highest resolution of 1 µA in the 6 mA measuring range. Measurement without switching off during normal operation of the system/device. Ideal for preventive maintenance and troubleshooting, protection against property damage and personal injury, power outages, etc. Voltage measurement/AC 0.01 V - 600 V. Voltage measurement/DC 0.01 V - 600 V. Resistance measuring range 0.1 Ohm - 600 kOhm. Continuity test yes. True RMS measurement (TRMS) yes. Frequency characteristic in accordance with EN 61557-16 for testing electrical devices in accordance with VDE 0701. LPF low-pass filter (40-70 Hz) to suppress high-frequency interference signals. Frequency range for rail and industry 15 Hz - 1 kHz (fg). Defined protection against external magnetic fields in accordance with EN 61557-13, Class 2, 30A/m. Automatic measuring range selection. Automatic switch-off. Automatic battery undervoltage display. Hold instantaneous value memory. PEAK peak value memory. Reliable shielding against external fields. Clamp opening 23 mm. Measuring circuit category Cat IV. Max. voltage measuring circuit category 300 V. Measuring circuit category Cat III. Max. voltage measuring circuit category 600 V. Includes case, test lead set, 2 x 1.5 V Micro/ AAA/ LR03 battery.