Benning CM 1-4 is an open true RMS current clamp featuring an LC display and LED step display. Non-linear loads, such as those generated by variable speed motor drives, frequency converters, or power supplies for office equipment and LED lights, create reactive power in the mains. This results in multimeters and current clamps using the averaging measurement method (RMS) displaying measured values less accurately. In many cases, especially in industrial environments, the use of modern true RMS measuring instruments is necessary. The true RMS measuring method accurately displays the real, effective value of an alternating current, regardless of whether the waveform of the current is sinusoidal or distorted.

Features:

• Current measurement up to 200 A AC via open current clamp
• Voltage measurement up to 1000 V AC/DC (with/without signal tone), from 50 V no batteries required
• LED step display: 12, 50, 120, 230, 400, 690, 1000 V
• Precise due to true RMS measuring method
• Turning field direction test via green LEDs (right/left)
• Single-pole outer conductor test (phase) via red LED
• Continuity test via buzzer and red LED
• Polarity test via +/- LED
• Single-handed operation for voltage measurement on sockets (19 mm)
• LED measuring point illumination
• Measured value memory (HOLD)
• Measuring category CAT IV 600 V, CAT III 1000 V
• Includes belt holster, test lead set, tip protection, contact tip magnification, batteries.