EVSE testing and calibration
Easy Chester: EV charger testers
Choose Micro or Ultimate for commissioning and electrical safety testing of installed charging stations. Easy Chester also covers production testing and calibration with dedicated systems.
Guided testing without a laptop.
Choose by test task
Start with the work you need to do.
Select your task to go straight to the relevant system. Product details and the comparison remain below.
AC commissioning and electrical safety
Easy Chester MicroCompact AC installation tester for charging stations and wallboxes. Guided safety, communication and charging checks for commissioning and inspection.
AC/DC commissioning and electrical safety
Easy Chester UltimateAC/DC installation tester for electrical safety, charging function and communication during commissioning, maintenance and repair verification.
Energy-meter calibration
Easy Chester CalimeraCompare AC/DC charging-station measurements with a traceable reference.
Production end-of-line testing
Easy Chester EOL / EOL HPCRepeatable production checks. Choose the required power and integration scope.
For protocol analysis or standards-conformance testing, explore the EVCA platform.
Production application
Define the factory release process before selecting EOL or EOL HPC.
First define the charger variants, acceptance criteria, cycle time and power boundary. Include automation, traceability and optional metrology, then select the Easy Chester product configuration.
EVSE lifecycle testing
One charging station. Different evidence at every stage.
Manufacturing needs a release decision, commissioning verifies safety and function, service verifies fault correction, and calibration checks measurement traceability. Each stage needs its own method and evidence.
Choose by task and environment
Five purpose-built EVSE tester paths.
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
Compact AC installation tester for commissioning, electrical safety, maintenance and periodic inspection.
- 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/DC installation tester for commissioning, electrical safety and charging-function checks, with guided reporting for maintenance and service.
First on the marketTen-year anniversary in 2026. Ultimate product line.
Field experience and test principle
- 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.
PTB certifiedEasy Chester CalimeraView certification details
- 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.
Add the Calimera GUI and a project-specific AC or DC power meter to EOL or EOL HPC for production metrology.
National legal-metrology requirements, approved procedures, measurement ranges, uncertainty, reference equipment and report formats remain market- and project-specific.
Shared Easy Chester foundation
Guided checks and records across the Easy Chester family
Each system guides the operator through charging-specific tests and keeps the evidence with the result.
Guided workflows
Follow the prerequisites and active test step, then review the measured value, verdict and report.
Charging-specific depth
Combine the test disciplines your task requires, including charging-specific checks alongside electrical measurements.
Measurements linked to their test conditions
Keep the result connected to the tested charger, site, configuration or production identity.
Purpose-built roles
Use the distinct methods and evidence required for production release, field assurance and metrology.
Configuration inputs
Define six facts before selecting hardware and options.
Product-family boundary
Easy Chester standardizes operational EVSE testing. EVCA opens the engineering test space.
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
Ultimate focuses on functional and safety checks with EV-like charging behaviour. It is not a standards-conformance tester. A passed field test does not replace the corresponding conformance test programme.
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
Compact AC installation tester for commissioning, electrical safety, maintenance and periodic inspection.
Explore the AC installation testerAC/DC EVSE installation tester
AC/DC installation tester for commissioning, electrical safety and charging-function checks, with guided reporting for maintenance and service.
Explore the AC/DC installation tester| 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, with EIM authentication | ✓ Available now, with EIM authentication |
| ISO 15118-20 communication | ◷ 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.
Does Ultimate test standards conformance or field function and safety?
Easy Chester Ultimate focuses on functional, load and safety checks of AC/DC charging stations. Its EV-like tolerance is intended to establish charging for the tests that need an active session. It is not a standards-conformance tester for IEC 61851-1, DIN 70121, ISO 15118, SAE J1772 or CHAdeMO. For engineering and conformance tasks, review the corresponding EVCA configuration.
Field workflow planning
Find the Easy Chester for your test task.
Select the product and options for your lifecycle task.