TrueRMS digital current meter, single-phase DMA-1RMS-CT, indirect measurement, with programmable ratio

Digital Current Meter – Precise Measurement and Easy Reading

DMA-1 CT is a single-phase digital current meter designed for indirect measurement using 5A current transformers. The device measures the true RMS value of the current, guaranteeing accuracy even with distorted current waveforms. The measurement result is displayed on a clear, 3-digit LED display, making quick and precise reading easy. The ability to program the transformer value allows for direct display of the actual measured current value.

Functionality and Application

The DMA-1 CT meter finds application in electrical installations where continuous current monitoring is required. It is ideal for both professional installers and end-users who want to have control over energy consumption and the condition of electrical circuits. The device works perfectly in switchboards, providing convenient mounting on a standard 35 mm DIN rail. Thanks to its accuracy class 1, it provides reliable measurement results.

Construction and Safety

The meter has been designed with user safety in mind. It has a protection degree of IP20, which protects against contact with hazardous voltages. It is important to remember to exercise caution when connecting to current transformers – an open secondary winding can generate dangerous voltage. It is recommended to disconnect the power or secure the secondary side of the transformer with short-circuiting bridges during installation. The device complies with LVD 2014/35/UE and EMC 2014/30/UE standards, confirming its safety and electromagnetic compatibility. The device's power consumption is 4W.