Digital current value indicator, single-phase DMA-1-CT, indirect measurement, with programmable ratio

Digital current value indicator – precise measurement and reliability

This single-phase, digital current indicator DMA-1-CT is an indispensable tool for both professional installers and end-users. The device is designed for indirect measurement, which means it works with current transformers. It provides an accurate reading of the effective AC current value (TrueRMS), even in the case of disturbed waveforms. This ensures reliable measurement under various operating conditions of the electrical installation.

Functionality and application

The DMA-1-CT indicator is mounted on a 35 mm DIN rail, which facilitates its integration with existing switchboards. Equipped with a three-digit LED display with a digit height of 10 mm, it provides a clear and legible reading. The programmable ratio allows you to adapt the device to the specifics of a particular installation and the current transformers used. The device finds application in a wide range of electrical installations – from domestic to industrial – where precise current measurement is crucial for the correct functioning of the system and user safety.

Construction and characteristic features

The DMA-1-CT is characterized by a solid construction and high quality of workmanship. Accuracy class 1 guarantees precise measurement results in the range of 20…1000 A. The device has overload protection up to 20 A for 1 second and a maximum current of 6 A, which increases its durability and reliability. The power supply in the range of 165÷265 V AC/DC ensures compatibility with various electrical networks. Additionally, the backlight of the measurement scale makes it easier to read in low light conditions. It is worth noting the legalization of the device – this confirms compliance with applicable metrological standards and regulations.

• TrueRMS measurement: Provides an accurate reading even with non-linear current waveforms, which is important for loads powered by inverters or impulse power supplies.
• Programmable ratio: Allows you to adapt the device to different current transformers, ensuring flexibility and versatility of application.
• DIN rail mounting: Facilitates quick and easy installation in the electrical switchboard.
• Clear LED display: Provides a clear reading of the measured current value even in difficult lighting conditions.
• Legalization: Confirms compliance with metrological standards and ensures the reliability of measurements.
• Wide measurement range: From 20 to 1000 A allows for use in various electrical installations.
• Compact dimensions: Occupies only 3 modules (52.5 mm) on the DIN rail, saving valuable space in the switchboard.