The compact true RMS clamp meter BE42 with integrated torch function allows you to perform especially precise measurements of the true r.m.s. value in industrial and technical in-house equipment, or even in confined control cabinets – without having to interrupt the circuit in this process. Determination of the current is effected in a completely contact-free fashion by measuring the electromagnetic field. Cable connections neither have to be cut nor interrupted. This makes inspection and maintenance tasks especially efficient. Due to the battery-saving “Auto-Power-Off” function, the device switches off fully automatically when it is not in use.

Ideally suited for:

• service technicians for carrying out trouble-free maintenance of machinery and plants
• craftsmen and electricians when working on confined control cabinets, in the housing technology sector and in building maintenance

professional equipment for all common measurement methods

With its professional full equipment and functionality, the clamp-on amperemeter BE42 almost fulfils any user requirement, outperforming conventional multimeters by far. The all-round current measuring instrument is suited for measuring DC and AC voltage, AC current, resistance values and performing continuity testing of fuses and contacts with an acoustic alarm signal and diode test. Moreover, the clamp-on amperemeter impresses with labour-saving comfort functions like for example a HOLD function, MAX measurement value indication, battery status indicator, warning indication when the measuring range is exceeded as well as practical LED lighting for large-scale illumination of the work area. When performing NCV measurements (contact-free voltage detection), the NCV-LED lights up red as soon as the sensor detects an AC voltage (min. 110 V~).

Practical one-hand operation

All measuring results are shown clearly on the backlit LC display. The measurement methods are selected conveniently and easily via a practical rotary switch.

Combines ergonomics and precision in top shape

Where other measuring devices have to pass because of their design, due to limited spatial and visibility conditions, the compact and ergonomically optimised clamp meter BE42 shows its true size. All indicators and operating elements as well as the slim clamp that can be opened widely and the free-moving clamp opening lever are designed for convenient one-handed operation. An impact-proof, all-round rubber lining makes the dust-protected clamp meter BE42 with IP40 protection type especially handy, provides reliable protection against impacts and damage and furthermore prevents undesirable slipping when placing the device on uneven surfaces.

In the measurement process, a digital measuring device without true RMS function assumes that the AC signal is sinusoidal and therefore converts the raw signal measured to be displayed on the basis of this assumption. However, in fact, the electrical current flow is never purely sinusoidal. Consumers like switch-mode power supplies, speed or power controllers, etc. cause faults which in turn produce distorted current profiles. Since these profiles are no longer purely sinusoidal, they cannot be measured correctly without true RMS functionality.

True RMS measuring devices can also measure non-sinusoidal signal characteristics correctly and therefore are able to directly determine the true r.m.s. value of any alternating quantity. In this respect , the true root mean square stands for the correct determination and output of the true r.m.s. value.