Service life test for LED lights
The use of LEDs has led to a paradigm shift in lighting technology and the lighting industry. The long service life, the diverse designs of the light sources and completely new areas of application are challenging product development and therefore also measurement and testing technology.
During the development of LED luminaires, the most important requirements for the testing technology are the service life test and the heating test and safety tests in accordance with EN 60 598-1. Among other things, the tests ensure that a luminaire does not overheat and become a fire hazard even in the event of a fault.
Trends in industrial measurement and testing technology
- LED assemblies are not universally standardized. Very different shapes and special designs have to be tested. In addition, safety testing and service life testing of LED switching power supplies and LED modules require complete electrical isolation in the measurement technology as well as primary and secondary-side measurements of the AC and DC variables.
- New areas of application of LED technology lead to very different requirements for testing technology. The range of available test devices is growing significantly and extends from basic equipment with a temperature data logger to a luminaire test device with fully automated measurement and evaluation technology.
Automated checks with new functions
- New functions for luminaire testers. The testing technology is continuously kept up to date with hardware and software updates and regularly receives new functions. After a software update, test results can be automatically inserted into your own standardized reports based on Microsoft Word/Office.
- Full network functionality. TheTesting under defined temperature conditions in an air-conditioned environment is supported by spatially separated preparation and evaluation of the tests and their control via a network. Data can be retrieved from a central database and results stored there.
High-quality measurement and testing technology for luminaires
- Example of heating test according to EN 60 598-1: The measurement and evaluation technology of the Luminaire testers runs through all the test steps specified in the standard fully automatically. These include the cold measurement of winding resistances, the burn-in phase and the subsequent testing of electrical parameters. The test system automatically recognizes when the test specimen has reached a "steady state". The temperatures are then automatically standardized and converted to 25 degrees. In addition to normal operation, the test also includes reduced and increased nominal voltages. The test program also includes tests in abnormal operation, for example if the ballast is defective. The individual test steps are carried out automatically and a test report is created.
- Example service life test: The service life of a light source depends on a variety of factors, such as the luminaire design or the conditions during operation. With LEDs, the comprehensive measurement of heat development is particularly important for service life testing, as the increased luminance and power density in a small space leads to greater heating. As the thermocouples can also be attached to live components, allMeasuring channels are electrically isolated to protect the measurement technology. During automated testing, the AC and DC variables are also measured on the primary and secondary sides.
Hardware and software for your measurement and testing solution
Flexible, scalable and expandable solution for seamless data acquisition and monitoring
The Loggito device is a compact data logger system designed for the acquisition and recording of measurement data. It has a variety of analog and digital inputs to connect different sensors and signals. The device records the data with high accuracy and stores it on an internal memory or external storage media such as SD cards.
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Data acquisition and analysis
With ProfiSignal Go you can display online data from the Message and Expert hardware in diagram form. Numerous analysis functions, such as zoom, cursor, movable axes, flags, ASCII export and calculation channels, enable fast display of measured values and post-processing.
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Precisely record, autonomously store, automatically transmit and evaluate measured values.
The FPGA-based Expert Logger device is particularly powerful and enables the processing of up to 46 analogue input channels, both at low and high sampling rates. Measured values can be precisely recorded, autonomously stored and automatically transferred to the internet or PC via USB, LAN or WLAN and evaluated.
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Operating and monitoring
ProfiSignal Basic combines the functions of ProfiSignal Go with operating and monitoring elements of process visualisations, e.g. digital and analogue displays, switches, buttons and signal lamps. With Basic, you can create everything from simple visualisation diagrams to complex visualisation systems.
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Modular measuring, monitoring and automation in one device.
The ProfiMessage D device is a state-of-the-art data logger system that has been specially developed for industrial data acquisition and analysis. It offers a wide range of functions such as the recording and storage of measurement data, monitoring of process parameters and alarms in the event of deviations.
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Automate and control
ProfiSignal Klicks supplements ProfiSignal Basic with functions for process automation. Structural diagrams for mapping the process as well as a script language (completely operable with the mouse) enable even the non-informatician to create complex test stand and automation applications with automatic report generation.
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State-of-the-art processor technology and extreme precision for vibration measurement.
The Expert Vibro device is a powerful vibration analysis device that has been specially developed for monitoring and analyzing machine and system conditions. It enables vibration data to be recorded and evaluated in order to detect potential problems or signs of wear at an early stage.
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Fast project planning and analysis of measurement data
With ProfiSignal 20 Go you can visualise your measurement data in just a few steps, both online and offline, in various diagram types, monitor, analyse, archive as a measurement file or export directly in the appropriate file format.
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Intelligent data recorder for synchronous recording of transient and periodic events.
The Expert Transient device enables the recording and evaluation of transient signals over a certain period of time and provides important information for the optimization of processes and systems. The device is characterized by its high accuracy, fast sampling rate and simple operation.
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Visualisation and operation
With ProfiSignal 20 Basic you can create individual diagrams using a wide range of operating and monitoring elements. Both continuous processes (e.g. production data acquisition) and discontinuous measurement tasks (e.g. test measurements) can be visualised, operated and monitored without any programming effort. You can create the operating and monitoring diagrams by assembling and configuring the prefabricated elements.
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Modular system for use as a measuring, control and monitoring device.
The ProfiMessage devices are a modular, expandable and easy-to-use system for measurement data acquisition, monitoring and automation of machines, systems or test benches. ProfiMessage can be used wherever measured values need to be recorded quickly, precisely and electrically isolated, as well as intelligently pre-processed or monitored.
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Central measurement data management
The Delphin Data Center is the solution used for the worldwide measurement networking and control of plants, machines and test stands.
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PC-supported data acquisition and test stand
The Expert Key device is a measuring and control device that can be used in various applications. It enables the acquisition and evaluation of measurement data as well as the control of processes. The device has various interfaces and can be connected to a wide range of sensors and actuators. It is often used in automation technology, mechanical engineering and research.
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Compact and flexible measurement data laboratory with precision measurement technology.
The LoggitoLab device is ideal for use in laboratory environments, research projects, quality control and other applications where precise data acquisition and analysis is required. It offers a reliable and user-friendly solution for monitoring and recording measurement data.
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Test stand for measurements with potential using an internal data memory.
The LogMessage device is a powerful data logger system designed for the reliable acquisition and recording of measurement data. It offers a variety of analog and digital inputs to connect different sensors and signals. The device records the data with high accuracy and saves it to an internal memory or external storage media.
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