German electronics company Comemso has introduced the Easy Chester Calimera, a mobile and scalable calibration system designed to enhance testing processes for electric vehicle (EV) charging stations. The system supports a broad range of charging technologies and is aimed at improving accuracy, mobility, and efficiency in global calibration operations.
The Easy Chester Calimera operates across a direct current voltage range of 150 to 1,000 volts and handles currents up to 500 amps, making it suitable for both conventional and high-power charging systems such as 400 V and 800 V platforms. According to Comemso, the solution is compatible with various global charging standards, including CCS (DIN 70121, ISO 15118-2, ISO 15118-3), ChadeMo (versions 0.9 to 2.0), and the North American Charging Standard (SAE J3400) for DC systems. For AC charging, it complies with IEC 61581-1 and SAE J1772, supporting up to 32 amps three-phase and 80 amps single-phase.
Designed for field use, the system is powered by an integrated battery and photovoltaic system, enabling autonomous operation for up to eight hours. Its compact design allows it to be installed in vans or trailers, offering increased flexibility and enabling multiple site calibrations in a single day. The device features IP21 protection during active use and IP65 protection when inactive, and functions reliably in ambient temperatures ranging from 0 to 40 degrees Celsius.
The system integrates Comemso’s proprietary ‘comframe’ software, which provides real-time monitoring of voltage and current, customisable test settings, and automated diagnostics. Reports generated by the system meet ISO 9001 and ISO 17025 standards.
Unlike conventional calibration solutions, the Easy Chester Calimera uses a combination of battery emulation and resistive loads to deliver high measurement stability and repeatability, helping ensure compliance with international standards.