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EV TestingVehicle, EVCC and charging-release validation.EVSE TestingCharging-station development through field operation.InteroperabilityReal EV and EVSE in one synchronized test record.
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BMS TestingCells, sensors, balancing and controlled faults.BMS + EVCC + OBCValidate the interaction of battery, charging controller and on-board charger.MCS TestingCommunication, signals, cooling and megawatt power.EV Charging EMCKeep charging communication observable under EMC stress.
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EVCA
EVCA PlatformCommunication, interoperability, high-power, MCS and EMC paths.EVCA ComOnlyFocused charging communication testing.EVCA Multi MobilePortable laboratory and field analysis.EVCA InteropAnalyse interoperability between a real EV and EVSE.EVCA FlexModular high-power testing and controlled faults.EVCA MCSMegawatt charging communication, low-level signals and system testing.
Easy Chester
Easy Chester PlatformEVSE production, commissioning, service and calibration.Easy Chester MicroAC EVSE installation testerEasy Chester UltimateAC and DC EVSE installation testerEasy Chester CalimeraAC and DC EVSE calibration systemEasy Chester EOL / EOL HPCEVSE end-of-line production tester
Battery, software and EMC
Battery Cell SimulatorBMS testing from compact bench to high-voltage HiL.comframeConfiguration, synchronized analysis and automation.EMC LinkOptical charging communication through the chamber boundary.
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comframe and integration
comframeThe shared test-intelligence environment.Integration & APIsREST, Python, CI/CD and laboratory orchestration.Protocol & Domain ModulesSelect released domain depth.Capabilities HubConnect the capability model across EV, EVSE and BMS testing.EVCA Capability HubExplore the detailed EV charging capability stack.
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Automated Standards AnalysisMeasured behaviour, normative context and highlighted deviations.Professional SimulationConfigure nominal, boundary and non-conform behaviour.Manipulating GatewayTest a live correction hypothesis between real partners.
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Charge PlaybackReproduce the charging partner for the DUT.Charge Cycle AutomationTurn saved configurations into repeatable campaigns.Conformance Test LibrariesVersioned executable standards-based test logic.
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Standards and test logic
Charging, Safety & EMCCharging behaviour, field safety, editions and test boundaries.Conformance Test LibrariesReleased executable test logic, verdicts and evidence.AFIR for EV ChargingRegulation, responsibility and verifiable evidence.
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Knowledge CenterTechnical explanations, methods and application guidance.GlossaryStable charging and BMS test terminology.EVSE Calibration MethodsCompare controlled real load and reference measurement.Battery Cell SimulationCells, balancing, faults, precision and BMS HiL.
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Resources LibraryCurrent brochures, webinars, guides and checklists.BMS testing whitepaperTemperature, environment, simulation and test wiring.EVSE Inspection GuidePractical commissioning and inspection workflow.Charger Uptime CalculatorEstimate downtime and field-service impact.Technical newsletterChoose product updates and events relevant to your tests.
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About comemsoEngineering purpose, history and operating companies.Development & manufacturingShort paths from development to system testingQuality & CertificationsManagement systems, validation and calibration evidence.Customer ProofNamed stories, endorsements and published configurations.SustainabilityEnvironmental management and measured progress.
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Customer Care TeamDelivery, commissioning, training and support.Sales PartnersRegional commercial and service access.CareersWork on deep e-mobility testing.
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TEST ENGINEERING. KNOWLEDGE

How do you calibrate a DC charging station on site for legal metrology and AFIR?

Choose a traceable energy-measurement method and document the charging point, operating conditions and measurement uncertainty. Calibration evidence and national legal-metrology approval are distinct, while AFIR adds its own public-infrastructure and user-access requirements.

Test area and evidence

Test areaWhat to define or record
MeasurementTraceable reference and defined method.
Operating pointRecord real-load or applicable phantom-power setup.
EvidenceReport result, uncertainty and device identity.
Legal scopeConfirm national rules and the responsible authority.

Coverage depends on the configured hardware, interfaces, firmware and released test libraries. State the agreed method and normative edition in the result. No blanket certification or universal fault coverage is implied.

Questions about this test scope

What must the test record identify?

Identify the DUT, counterpart, firmware, configured interfaces, method, library version and measured result.

Can one result prove every supported variant?

No. Define which configurations and conditions the executed cases cover, and document any untested boundary.

How do I choose the related test setup?

Start with the DUT role and required interfaces, then agree the communication, electrical and power scope with the application team.

Sources and further reading

European Commission. AFIR Q&A

Technical content: comemso. Updated .