Introducing the mini-ATOS, an exceptional multifunctional power transformer and substation diagnostic system. This intelligent and compact instrument revolutionizes the field of measurements with its cutting-edge hardware and software generation and versatile capabilities. Equipped with the latest technology, the mini-ATOS offers an extensive range of routine and advanced tests. It excels in performing critical measurements such as Winding Resistance, Dynamic Resistance Measurement (DRM), Turns Ratio, Frequency Response of Stray Losses (FRSL), Magnetic Balance, and other essential diagnostic parameters. With its built-in fully automatic multiplexer, the mini-ATOS streamlines the measurement process, requiring only a single connection for most functions. This intelligent feature significantly reduces testing time, allowing engineers and technicians to work efficiently and effortlessly. Whether conducting on-site evaluations or working in a laboratory setting, the mini-ATOS’s portable and robust design ensures seamless operation in any environment. At the core of the mini-ATOS lies Raytech’s renowned commitment to precision and quality. This instrument is engineered to deliver fast and accurate measurements, enabling professionals to make informed decisions with confidence. Its user-friendly interface and intuitive controls make measurements fast and hassle-free, empowering users to perform tasks swiftly and effectively. Experience the next generation of power transformer and substation diagnostics with the mini-ATOS!

Measurement Parameters (Resistance Measurement)
Test Current	30A and 7.5A Simultaneously & User Adjustable
Charging Voltage	100V
Resistance / Inductance Range	0.01 μΩ to 100 kΩ / 1500 Henry
Accuracy	up to 0.1% ± 0.1μΩ
Measurement Parameters (Turns Ratio Measurement)
Test Voltage	up to 250VAC User Adjustable
Turns Ratio Range	0.8 … 50 000
Accuracy	up to 0.06%