Digital current value indicator, single-phase DMA-1 true RMS Imax=20A 3 modules DMA1RMS

Digital Current Meter – Precise Measurement in Single-Phase Installations

This digital, single-phase current meter DMA-1 True RMS is a reliable tool for continuous monitoring of the load in electrical circuits. The device is designed for both professional and end-user applications who want full control over energy consumption. It is characterized by high measurement accuracy, even for distorted waveforms, which is particularly important in industrial installations powering non-linear devices.

Functionality and application

The DMA-1 meter allows direct current measurement up to 20A, eliminating the need for additional current transformers in many applications. Thanks to the True RMS function, it provides precise readings of the effective current value, regardless of the waveform shape. This is crucial when measuring loads generating harmonics, such as switch-mode power supplies or motor controllers. The device is mounted on a standard 35 mm DIN rail and occupies 3 modules, making it easy to integrate with existing electrical infrastructure. The backlit LED display provides a clear reading of the indications in various lighting conditions.

Construction and characteristic features

The DMA-1 meter is characterized by a solid construction and high quality workmanship. It has an accuracy class of 1, which guarantees precise measurements. The power supply in the range of 100÷265 V AC/DC ensures a wide range of compatibility with various electrical networks. The device is certified, which confirms its compliance with applicable standards and regulations. Power consumption is only 4W, which minimizes the impact on overall energy consumption in the installation. It is worth noting the possibility of mounting on a DIN rail - this is a standard solution that facilitates the installation and servicing of devices in electrical switchboards. Additionally, the display backlight significantly improves user comfort, especially in poorly lit rooms or during maintenance work.