Products / Easy Chester
EV Charger Testers
Easy Chester covers installation, maintenance, production testing and calibration.
Guided testing. No laptop required.
The goal of the Easy Chester hub
Turn an EVSE test task into a clear product decision.
Use the lifecycle stage to identify the relevant Easy Chester path, understand the five product roles and continue to the detailed technical specification.
Choose the smallest complete Easy Chester path for manufacturing, commissioning, service, inspection or calibration, then confirm the project-specific interfaces and ratings.
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Locate the task
Factory, high-power production, commissioning, service, inspection or calibration.
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Select the product role
EOL, EOL HPC, Micro, Ultimate or Calimera.
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Configure the released scope
Technology, power, mobility, safety, metrology, automation and evidence.
Production application
Define the factory release process before selecting EOL or EOL HPC.
Start with the charger variants, acceptance criteria, cycle time, power boundary, automation, traceability and optional metrology. Select the Easy Chester product configuration second.
EVSE lifecycle testing
One charging station. Different evidence at every stage.
Manufacturing asks whether the unit can be released. Commissioning asks whether the installed charger is safe and functional. Service asks whether a fault was diagnosed and corrected. Calibration asks whether energy measurement remains traceable. The test method changes with the decision.
Choose by task and environment
Five purpose-built EVSE tester paths.
Start with the question that must be answered. Continue to the individual product page for technical depth, released options and project configuration.

Easy Chester EOL
Configured AC/DC checks for a repeatable charging-station production sequence.
- Use when
- Every manufactured charger needs the same approved function, communication and parameter checks.
- Primary evidence
- Unit identity, test execution, verdict and production report.
- Optional extension
- Calimera GUI plus project-specific AC/DC power meter.

Easy Chester EOL HPC
High-power DC production testing within the configured electrical and safety limits.
- Use when
- The production cell must coordinate charging communication, external power or load hardware, cooling and safety.
- Primary evidence
- Traceable high-power operating points, sequence results and release decision.
- Optional extension
- Calimera GUI plus project-specific AC/DC power meter.

Easy Chester Micro
AC installation, commissioning, maintenance and periodic inspection in one compact device.
- Use when
- A portable, guided AC workflow is the primary requirement.
- Protocol scope
- AC with or without ISO 15118-2, without TLS.
- Roadmap
- ISO 15118-20 without TLS · coming soon Q1/2027.

Easy Chester Ultimate
AC and DC installation, commissioning, maintenance and periodic inspection with guided reporting.
- Use when
- A technician must verify charging function, communication and electrical safety at installed infrastructure.
- Primary evidence
- Guided test steps, measured values, verdicts and field report.
- Typical tasks
- Commissioning, repair verification, service and periodic EVSE inspection.

Easy Chester Calimera
AC and DC energy-meter calibration with controlled real load and reference measurement.
- Use when
- The installed charger must be measured under controlled operating points in its real operating environment.
- Primary evidence
- Reference values, charger values, comparison and calibration record.
- Typical tasks
- On-site calibration and metrological verification of AC or DC charging infrastructure.
Optional production metrology
Keep calibration evidence connected to the end-of-line result.
Easy Chester EOL and Easy Chester EOL HPC can optionally add a metrology-oriented workflow before the charging product leaves the factory. The configuration combines the production system with the Calimera GUI and a project-specific AC or DC power meter.
National legal-metrology requirements, approved procedures, measurement ranges, uncertainty, reference equipment and report formats remain market- and project-specific.
Shared Easy Chester foundation
The product changes. The assurance logic remains recognizable.
Each system puts charging-specific test knowledge into a task-oriented workflow. The operator should not have to assemble unrelated tools and reconstruct the evidence after the test.
Guided workflows
Connect prerequisites, active test step, measured value, verdict and report.
Charging-specific depth
Combine the disciplines required by the task instead of presenting a generic electrical measurement alone.
Measurements linked to their test conditions
Keep the result connected to the tested charger, site, configuration or production identity.
Purpose-built roles
Preserve the difference between production release, field assurance and metrology.
Configuration inputs
Define six facts before selecting hardware and options.
The product family is selected by the real test boundary. A useful request describes the task, environment and evidence before it asks for a device name.
Product-family boundary
Easy Chester standardizes operational EVSE testing. EVCA opens the engineering test space.
The right platform depends on whether the team needs a guided release or service decision, or an open development and analysis environment.
Easy Chester
- Repeatable factory acceptance
- Guided commissioning and field service
- Periodic inspection and structured reports
- Mobile or production-integrated metrology
EVCA
- Development simulation and measurement
- Conformance and robustness testing
- Interoperability root-cause analysis
- Fault injection, manipulation and laboratory reproduction
Choose your installation tester
Micro provides the AC functionality of Ultimate. Ultimate adds DC charging tests. Supported safety functions, interfaces and options must be selected for the required inspection scope.
AC EVSE installation tester
Easy Chester Micro
AC field inspection in a compact device.
Easy Chester MicroAC and DC EVSE installation tester
Easy Chester Ultimate
One field tester when the work includes both AC and DC charging.
Easy Chester Ultimate| Installation, commissioning and periodic inspection | Easy Chester Micro | Easy Chester Ultimate |
|---|---|---|
| AC charging stations and wallboxes | ✓ Yes | ✓ Yes |
| DC charging stations | – No | ✓ Yes |
| Installation, commissioning and maintenance | ✓ AC | ✓ AC and DC |
| Grid-side electrical safety tests | ✓ Yes | ✓ Yes |
| EV-side electrical safety tests | ✓ AC | ✓ AC and DC |
| Phase-sequence testing | ✓ Yes | ✓ Yes |
| AC communication: ISO 15118-2 | ✓ Available now, without TLS | ✓ Available now, without TLS |
| ISO 15118-20 test scope | ◷ Planned Q1/2027, without TLS | ◷ Planned Q1/2027, without TLS |
| TLS testing | – Currently unavailable | – Currently unavailable |
Yes indicates a supported function. Standard equipment and available options depend on the selected configuration. Planned functions are not yet available.
Choose an EOL, EOL HPC or Calimera system for production and calibrationFrequently asked questions
Easy Chester EVSE tester questions
What is the Easy Chester product family?
Easy Chester is the comemso family of purpose-built EVSE testers for charging-station production, commissioning, service, inspection and calibration. The family contains separate systems for different lifecycle decisions rather than one universal device.
Which Easy Chester is used for charging-station commissioning?
Easy Chester Micro supports AC installation and commissioning. Easy Chester Ultimate covers AC and DC charging stations. Both combine guided charging-function, communication and electrical safety tests with reporting for the selected configuration.
Which system is used for EVSE maintenance and periodic inspection?
Use Micro for AC maintenance, repair verification and periodic inspection; choose Ultimate when DC charging stations are also in scope. Select the required interfaces, safety functions and reporting configuration.
Which Easy Chester is used for EVSE end-of-line testing?
Easy Chester EOL is the compact production path for repeatable function, communication and parameter verification with traceability. Easy Chester EOL HPC extends the production role to high-power charging products and project-specific power, cooling, switching and safety integration.
What is the difference between Easy Chester EOL and EOL HPC?
Easy Chester EOL focuses on repeatable production acceptance for charging products. EOL HPC is selected when the production cell must coordinate high-power operating points, external source or load hardware, cooling, interlocks and safely sequenced automation.
Can calibration be added to Easy Chester EOL or EOL HPC?
Yes. Both production systems can optionally be combined with the Calimera GUI and a project-specific AC or DC power meter. This connects metrology-oriented checks with the same unit identity and production evidence.
Field workflow planning
Choose the tool from the service question.
Describe the installed EVSE, required check, site conditions and result format.