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Test suite carries out CE compliance tests

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By eeNews Europe

The LMG Test Suite supports measurements in accordance with standards EN 61000-3-2/-12 and EN 61000-3/-11. In addition, it supports EMC and EMI measurements on vehicles according to ECE R-10.4 Annex 11. The software offers a graphical representation of the measurement results plus the relevant fixed or product-specific limit values defined in the standards. Since ZES Zimmer is represented on international standards bodies, changes, amendments or updates are implemented in the test systems without delay.

The system offers the choice of measuring online with direct connection to the measurement hardware or offline, using data records previously acquired and stored. Data records are furnished with the basic characteristic data of the test sample (RMS values of voltage and current, active power, reactive power and apparent power, power factor, harmonic distortion, etc.) to increase the significance of the information and to avoid incorrect allocations.

Based on the vendor’s well-established power analysis technology, the system offers a fast Gigabit Ethernet interface for data transfer between the computer running the test software and the test hardware. The LMG Test Suite allows users to trace back for the reasons of an inadequate test result. All measurements are represented in the time domain as well as in the frequency domain. Harmonic frequencies can be isolated during the test and investigated to assist in localising the cause of the problem. To conduct further analysis, the data can also be forwarded to applications from third-party vendors using the PC clipboard mechanism or file export.

To provide maximum flexibility to the customers, the test suite supports all AC power sources available on the market which meet the requirements of the CE standards to be tested. In particular, they can continue to use existing sources and thus avoid additional investments. Calibration of the AC power source specifically for the CE tests is not necessary, as the test system monitors compliance with the stipulated source parameters. For example, the system analyzes the voltage harmonics and presents them graphically. This eliminates distortion and ensures voltage stability of the source. Any problems from this side of the test structure are thus excluded reliably.

All results are documented in comprehensive test reports in PDF format. Alongside the stipulated measurement values, all of the information regarding measurement equipment, test structure and settings is also integrated into the test reports – such as type designations, serial numbers and information on the calibration and traceability of the measurement instruments used. In order to avoid unnecessary reworking of the reports outside the system, the reports can be supplemented with additional customer-specific information and design elements.

More information: www.zes.com


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