BENNING CM 2-1 current clamp meter 400A AC/DC 600V AC/DC

Product Overview

The BENNING CM 2-1 is a TRUE RMS digital clamp meter. The instrument is designed for non-contact measurement of AC and DC current as well as other electrical quantities, and is presented as BENNING's product CM 2-1, item no. 044689. citeturn1view0

Functions and Applications

The instrument measures AC and DC current from 10 mA up to 400 A and AC/DC voltage from 100 µV up to 600 V. Additionally, it offers measurement functions for resistance (0.1 Ω–40 MΩ), frequency (0.01 Hz–50 kHz) and capacitance (1 nF–10 mF). These measurements provide an overview of the electrical parameters that the CM 2-1 can determine during inspection and troubleshooting. citeturn1view0

The CM 2-1 operates with the TRUE RMS measurement method, has a stated basic accuracy of 0.5%, and an indication range of 4,000. The jaw opening is 27 mm, which indicates the maximum conductor dimension that can be clamped. The instrument has memory functions (HOLD, MAX/MIN, ZERO) as well as continuity and diode testing. citeturn1view0

Typical Applications

• Measurement of low currents (specified for automotive and photovoltaics in the manufacturer's product description).
• General current and voltage measurement for inspection and troubleshooting (specified by the manufacturer).

These applications are directly mentioned in the manufacturer's product text and describe the typical use cases for the CM 2-1. citeturn1view0

Additional Features

• AutoV function for automatic AC/DC detection and low input impedance (LoZ) to reduce capacitively/inductively induced voltages.
• Low-pass filter (HFR, 800 Hz) for measurements in pulsating motor speed operations and voltage sensor for non-contact phase/cable break signalling (LCD/buzzer).

These functions are specified in the manufacturer's product description and support measurement work with noisy or pulsating signals. citeturn1view0

Specifications

• Product: BENNING CM 2-1.
• Item no.: 044689.
• Indication range: 4,000 (illuminated display).
• Basic accuracy: 0.5%.
• AC voltage: 100 µV – 600 V.
• DC voltage: 100 µV – 600 V.
• AC current: 10 mA – 400 A.
• DC current: 10 mA – 400 A.
• Resistance: 0.1 Ω – 40 MΩ.
• Frequency: 0.01 Hz – 50 kHz.
• Capacitance: 1 nF – 10 mF.
• Continuity / diode test: yes / yes.
• Memory: HOLD, MAX/MIN, ZERO.
• Measurement method: TRUE RMS.
• Max. jaw opening: 27 mm.
• Measurement category: CAT IV 300 V, CAT III 600 V.
• Scope of delivery (specified): protective case, test leads and batteries included.

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