Key Takeaways (TL;DR):
- comemso’s Easy Chester Ultimate is a new mobile test system consolidating functional, communication, and electrical safety testing for EV charging infrastructure.
- The 15.7 kg unit streamlines commissioning, maintenance, repair, and periodic inspection of AC, DC CCS, and CHAdeMO charging stations.
- It features a 10.1-inch touchscreen, guided test procedures, and automated PDF reporting for comprehensive diagnostics.
- The system tests critical communication protocols (DIN 70121, ISO 15118-2/3) and simulates faults to ensure station responsiveness.
- Electrical safety checks cover protective conductor, insulation resistance, RCDs, and loop impedance on both grid and vehicle sides.
- Its all-in-one design significantly enhances efficiency and accuracy in identifying the root cause of charging deviations, supporting various global charging standards.
Pioneering Integrated Solutions for EV Charging Infrastructure Testing
In a significant stride towards enhancing the reliability and efficiency of electric vehicle (EV) charging networks, comemso electronics has unveiled the Easy Chester Ultimate. This innovative mobile test system is designed to provide a comprehensive, all-in-one solution for EV charging infrastructure testing, integrating functional assessment, charging communication analysis, and electrical safety verification into a single, portable unit.
Historically, the intricate process of validating EV charging stations demanded an array of disparate instruments, each with its unique operational protocols and documentation requirements. The introduction of Easy Chester Ultimate seeks to address these inefficiencies by consolidating these critical functions, offering a streamlined approach that promises greater accuracy and reduced operational complexity for field technicians and engineers.
Unifying Testing Capabilities for Enhanced Efficiency
The core innovation behind the Easy Chester Ultimate lies in its ability to perform what previously necessitated multiple pieces of equipment. This consolidation not only simplifies the testing workflow but also ensures a consistent methodology across various diagnostic stages, thereby minimising potential errors and accelerating the troubleshooting process.
Featuring a user-friendly 10.1-inch touchscreen, the system guides operators through each test sequence with clear, intuitive prompts. All measurements, communication sequences, and final results are meticulously recorded and compiled into a configurable PDF report, which can then be easily shared directly from the device, further enhancing workflow efficiency.
Designed for On-Site Deployment and Versatility
Weighing a mere 15.7 kg, the Easy Chester Ultimate is engineered for maximum portability and robustness, making it an ideal tool for direct on-site applications. Its primary utility extends across several critical phases of a charging station’s lifecycle, including initial commissioning, routine maintenance, crucial repair operations, and mandated periodic inspections.
Depending on its specific configuration, the system offers extensive testing capabilities across various charging standards. It can rigorously test both Alternating Current (AC) and Direct Current (DC) charging stations, encompassing widely adopted standards such as Combined Charging System (CCS) and CHAdeMO, ensuring broad compatibility within the evolving global EV landscape.
In-Depth Analysis of Charging Communication and Protocols
One of the standout features of the Easy Chester Ultimate is its sophisticated capability for charging communication analysis. This is a critical aspect of EV charging infrastructure testing, as seamless communication between the electric vehicle and the charging station is paramount for safe and efficient charging.
The system meticulously checks Control Pilot (CP) and Proximity Pilot (PP) signalling, which are fundamental for handshake procedures and determining the charging capacity. Furthermore, it delves into Power Line Communication (PLC), including the critical Secure Local Area Network Communication (SLAC) protocol, ensuring secure and robust data exchange.
Beyond basic checks, the device conducts in-depth analysis of digital charging communication protocols, adhering to international standards such as DIN 70121, ISO 15118-2, and ISO 15118-3. These standards govern the advanced communication necessary for smart charging features and Vehicle-to-Grid (V2G) capabilities.
A crucial diagnostic function includes the ability to simulate defined faults on the CP, PP, and Protective Earth (PE) lines. This allows technicians to verify how effectively a charging station responds to and handles various fault conditions, including insulation faults, thereby safeguarding both the vehicle and the electrical infrastructure.
Comprehensive Electrical Safety Assurance
Electrical safety is non-negotiable in EV charging infrastructure testing. The Easy Chester Ultimate provides extensive electrical safety testing that spans both the grid side, where the charging station connects to the main power supply, and the vehicle-facing interface, which directly interacts with the EV.
Depending on the test direction and specific configuration, the unit performs a range of vital measurements. These include protective conductor resistance, ensuring a safe grounding path; insulation resistance, to prevent electrical leakage; residual voltage analysis; and the verification of Residual Current Devices (RCDs) and insulation monitoring systems, which are crucial for detecting and mitigating dangerous earth faults.
Additionally, the system measures loop impedance, vital for ensuring proper overcurrent protection, alongside precise voltage and current measurements during charging cycles. These comprehensive checks are fundamental in guaranteeing the operational safety of charging stations under diverse conditions.
Broad Standard and Protocol Coverage
The versatility of the Easy Chester Ultimate is further underscored by its extensive support for various charging standards and protocols prevalent worldwide. This adaptability ensures that the system remains relevant and effective across different geographical markets and EV models.
It supports AC Type 1 and Type 2 connectors, widely used in North America, Japan, and Europe. For DC fast charging, it accommodates CCS Combo 1 and Combo 2, the dominant standards in North America and Europe respectively. Furthermore, it supports the North American Charging Standard (NACS) under SAE J3400 and the CHAdeMO standard, popular in Japan and increasingly in other regions.
In terms of communication protocols, its coverage includes IEC 61851-1, which specifies general requirements for EV charging systems, alongside the detailed DIN 70121, ISO 15118-2, and ISO 15118-3 for digital communication.
Streamlined Workflow and Advanced Reporting
The operational workflow of the Easy Chester Ultimate is meticulously designed for simplicity and efficiency, guiding the user through a clear four-step process:
- Connection: The user first connects the device to both the charging station and the electrical grid.
- Selection: The appropriate charging standard and desired test are then selected from the intuitive interface.
- Execution: The system proceeds to run the comprehensive safety, functional, and communication checks automatically.
- Analysis & Documentation: Finally, any deviations are highlighted for analysis, and the results are documented, with reports conveniently exportable to configurable PDFs and capable of being emailed directly from the device for immediate dissemination.
Beyond its core testing functions, the Easy Chester Ultimate offers practical features for field use, including wireless firmware updates to ensure the system remains current with evolving standards, integrated device checks for self-diagnostic capabilities, and optional remote support for expert assistance whenever required.
Pinpointing Fault Origins with Precision
By integrating three distinct levels of testing – electrical safety, charging communication, and functional operation – comemso highlights the system’s unique ability to accurately identify the root cause of any deviation. This consolidated diagnostic power means users can definitively determine whether a problem originates from the electrical installation, a communication breakdown, protection function failures, or general charging behaviour.
This holistic diagnostic approach significantly reduces troubleshooting time and enhances the effectiveness of repairs, making the Easy Chester Ultimate an indispensable tool for maintaining optimal EV charging infrastructure performance.
Diverse Applications for a Growing Market
The versatile applications of the Easy Chester Ultimate cater to the multifaceted needs of the rapidly expanding EV market. Its typical uses include the critical process of commissioning new charging points, ensuring they are fully functional and safe before becoming operational.
It is also invaluable for functional checks conducted after maintenance or repair work, verifying that all systems are back to standard. Diagnosing complex charging and communication problems, verifying electrical protection functions, and conducting mandatory periodic inspections are further key applications, underpinning the device’s role in ensuring the long-term reliability and safety of EV charging infrastructure.
Expandable Capabilities for Advanced Scenarios
To meet even more demanding testing requirements, the Easy Chester Ultimate offers optional extensions. These include a Long Duration Unit, designed for facilitating longer charging cycles and crucial for analysing time-dependent faults that may not manifest during shorter tests.
Additionally, external DC loads can be integrated, allowing for comprehensive testing at higher charging power levels over extended periods. These extensions ensure the system’s adaptability to future EV charging advancements and more rigorous testing environments.
FAQ Section
What is comemso’s Easy Chester Ultimate?
The Easy Chester Ultimate is a mobile test system by comemso electronics designed for comprehensive EV charging infrastructure testing. It combines functional testing, charging communication analysis, and electrical safety testing into a single portable unit, streamlining the diagnostic process for EV charging stations.
What types of charging stations can the Easy Chester Ultimate test?
Depending on its configuration, the system can test AC, DC CCS (Combined Charging System), and CHAdeMO charging stations. It supports various connector types, including AC Type 1 and Type 2, CCS Combo 1 and Combo 2, NACS (SAE J3400), and CHAdeMO, catering to global standards.
How does the system simplify EV charging infrastructure testing?
It unifies tasks that previously required multiple instruments, operating concepts, and documentation processes. With a 10.1-inch touchscreen, guided test procedures, and automated PDF reporting, it offers a consolidated, efficient, and user-friendly workflow for technicians in the field.
What electrical safety checks does it perform?
The Easy Chester Ultimate performs critical electrical safety tests on both the grid and vehicle-facing interfaces. These include measuring protective conductor resistance, insulation resistance, residual voltage, verifying Residual Current Devices (RCDs), insulation monitoring, and loop impedance, alongside voltage and current measurements.
Can it diagnose communication problems in EV charging?
Yes, it excels in diagnosing communication issues by checking Control Pilot (CP) and Proximity Pilot (PP) signalling, Power Line Communication (PLC) including SLAC, and digital communication under DIN 70121, ISO 15118-2, and ISO 15118-3. It can also simulate faults to test station responsiveness.
What are the primary applications of this mobile test system?
Its primary applications include commissioning new charging points, performing functional checks after maintenance or repair, diagnosing complex charging and communication problems, verifying electrical protection functions, and conducting essential periodic inspections of EV charging infrastructure testing.
Are there any optional extensions for the Easy Chester Ultimate?
Yes, optional extensions include a Long Duration Unit for analyzing time-dependent faults during extended charging cycles, and external DC loads, which allow for testing at higher charging power over longer periods, enhancing its versatility for advanced diagnostic scenarios.


