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View original publicationThe Easy Chester Calimera – Setting the Standard in EVSE Calibration
The success of e-mobility depends on trust, precision, and standard compliance. As charging technology advances, ensuring that EV charging stations meet regulatory requirements becomes more critical than ever. The Easy Chester Calimera is designed to simplify, optimize, and future-proof calibration processes by providing a mobile, high-precision, and scalable solution for EVSE (electric vehicle supply equipment, or charging station) professionals.
High-Power, All-Standards Capability with Proven Measurement Stability
With an extensive DC voltage range (150V – 1000V) and current capacity (0A – 500A or more), the Easy Chester Calimera supports a wide range of charging scenarios, including 40 kW, 130 kW, and 260kW configurations. This ensures compatibility with 400V and 800V charging systems, aligning with the latest industry standards.
Unlike traditional calibration tools, resistive loads ensure highly stable and repeatable measurement conditions. This approach minimizes deviations and guarantees accurate, regulation-compliant data, making the Easy Chester Calimera a more reliable alternative to battery-based or electronic load solutions.
Comprehensive Standard Compatibility
Designed to meet global standards, the Easy Chester Calimera supports:
- CCS (DIN 70121, ISO 15118-2, ISO 15118-3)
- CHAdeMO (Versions 0.9 – 2.0)
- NACS (SAE J3400)
- AC Testing (IEC 61851-1 & SAE J1772, up to 32 A 3 phases or 80 A one phase)
This ensures full interoperability with the latest and most widely used EV charging protocols worldwide.
Designed for Mobility & Efficiency
As a fully mobile calibration solution, the Easy Chester Calimera is built for on-site operation:
- Independent power supply – Integrated battery and solar options allow for up to 8 hours of autonomous operation.
- Compact and transportable – Easily mountable in vans or trailers, allowing calibration of multiple charging stations in one day.
- Minimized downtime – Modular components and a quick setup process reduce service interruptions.
Built for the Most Demanding Environments
Durability is key for field operations. The Easy Chester Calimera features:
- Advanced cooling technology for consistent performance under high loads.
- IP21 (active) and IP65 (inactive) protection for operation in challenging conditions (0°C – 40°C).
Setting a New Benchmark in EVSE Calibration
With German-engineered precision, modular scalability, and a proven track record since 2016, the Easy Chester Calimera is the go-to solution for calibration professionals worldwide. It ensures that charging stations remain compliant, efficient, and future-ready, helping to build trust in the EV infrastructure.
Powerful Software for Maximum Control
The comframe software enhances efficiency with:
- Real-time monitoring of voltage and current
- Customizable test configurations
- Automated event logging & diagnostics
- Detailed measurement and reports (ISO 9001 & ISO 17025)
This provides full transparency and traceability, ensuring compliance with global quality and calibration standards.
OIML G22, NIST HB-44 and German Calibration Law Standards-Compliant and Automated
EVSE Calibration
Easy Chester Calimera supports calibration and legal-metrology test workflows for charging stations. The applicable procedure, system configuration and authorized scope determine which tests and formal verification activities can be performed. Reference documents discussed in this article include:
- VDE-AR-E 2418-3-100, including REA Document 6-A and IEC 62053-41 for Eichrecht (approved by PTB – German National Metrology Insitute) with focus on Cross-Testing V(min)/ I(max) and V(max)/ I(min)
- OIML G22 with focus of 400 V and 800 V voltage bands
- NIST Handbooks HB-130 and HB-44 for “any voltage” with focus of voltage bands
With the intuitive com.frame software, required test points can be selected and executed automatically – quickly and conveniently. In practice, the Calimera covers both relevant voltage bands of 400 V and 800 V typically used in DC charging infrastructure. This ensures your test team is perfectly equipped for legal metrology and international compliance – with efficient and fast execution in the field.
Charging station calibration with logged reports and automatable if required. For DC-CCS, CHAdeMO, NACS & AC.
Ready to optimize your EVSE calibration process?
Contact us today to learn more!
Tested and approved by German National Metrology Institute
See the Easy Chester Calimera in Action
Easy Chester Calimera – EVSE Calibration in the Field
Easy Chester Calimera – EVSE Testing in the Lab
Real-World Applications of Easy Chester Calimera
Simplify and Standardize
- Field Service: Calibrate charging stations post-installation, during routine maintenance, or after repairs and at specified intervals.
- Production Lines: Integrate seamlessly for automated end-of-line calibration.
- Calibration and Compliance: Meet German Eichrecht, OIML G 22 (International Organisation of Legal Metrology) and ISO 17025 standards for billing accuracy.
Reliable and Reproducible
- Perform long-duration EV simulation and charging station calibration to ensure stable and high-accurate results.
High-Power Testing: Future-Proof Your Operations
- Evaluate DC-CCS, CHAdeMO, NACS and high-power charging systems up to 1000 V and 500 A with Easy Chester Calimera fully compliant to test 400V and 800V charging technology at full charging power.