Leakage Current Clamp (1 μA resolution): BENNING CM 9

Leakage currents are caused by weak insulation or insulation damages. The BENNING CM 9 allows timely and precise localization of all error types. By means of preventive measurements, possible damages caused by uncontrolled leakage currents can be avoided in advance.

• constructed and tested in accordance with DIN VDE 0411 Part 1 / EN 61010-1, DIN VDE 0404-4
• measurement of leakage currents and differential currents in electrical systems (VDE 0100) and devices (VDE 0701-0702, BetrSichV ( German Health and Safety at Work Regulations)
• resolution of 1 μA in the 6 mA measuring range
• reliable detection of insulation faults (e.g. defective cables, loose terminals, contamination, moisture)
• measurement during normal operation of the system / device
• ideal for preventive maintenance and fault localization (protection against damages and personal injury, blackouts, etc.)
• precise and reproducible measuring results up to 100 A
• screening against external magnetic fields
• compare function notes when data exceeds the respective threshold (0,25 mA, 0,5 mA, 3,5 mA)

Industrial environments require TRUE RMS measurements!

Non-linear loads arising, e.g. from motor drives with adjustable speed, frequency converters or mains supply units for office equipment, and LED lamps generate a reactive power in the mains. As a result, multimeters and current clamps working with the averaging measurement method ("RMS") will display the measured values with reduced accuracy.

In many cases, and particularly in industrial environments, it is therefore absolutely necessary to use state-of-the-art "TRUE RMS" measuring instruments. The "TRUE RMS" measuring method indicates the actual effective value of an alternating current correctly – irrespective of whether the signal waveform of the current is sinusoidal or distorted.