Synchronous power measurement in measurement technology
Combined power measurement is an important topic in measurement technology. It enables several performance parameters to be recorded simultaneously in one measurement process. Different measurement methods and devices are combined to obtain a comprehensive picture of a system's performance. This is particularly important in industry in order to monitor and optimize the efficiency of machines and systems. Combined performance measurement can be used to measure and analyze electrical, thermal and mechanical performance parameters, for example. This enables companies to identify weak points and take appropriate measures to improve performance. Combined performance measurement also contributes to energy efficiency, as it provides information on potential savings.
In addition to recording typical signals such as temperatures, pressures and flow rates, product testing very often also requires the simultaneous recording of power data. The power data usually has to be recorded as AC variables on the primary supply side. Apparent active and reactive power, but also cos phi, crest factor or TRMS values of current and voltage are relevant here. In the case of frequency converters, secondary-side measurement of DC values up to high-frequency and distorted AC values is also required.
Power measurement with data logger
During measurement, single-phase or three-phase power measurement units are used, which are then connected to the data logger via a serial interface. ProfiMessage devices from Delphin are used. In this optimal constellation, all data can be recorded, monitored and evaluated synchronously and with just one system. Thanks to the large number of possible interfaces and protocols of the Delphin data loggers, power measurement devices from different manufacturers can be connected directly.
Application highlights of power measurement
- Synchronous recording of performance data and conventional process data in just one system
- Acquisition of characteristic values in power measurement (TRMS, peak, crest, peak values)
- Connection of power meters from many different manufacturers possible
- Online calculation of performance data with other measured values
- Energy efficiency measurements in accordance with EN 50001
Practical example of combined power measurement
Electrical power and temperature measurement on a pump test stand
A pump manufacturer from NORTH RHINE-WESTPHALIA supplies its pumps directly with an integrated frequency converter. In the final test after production, a 100% test is carried out on each pump on the automated end-of-line test stand. The following are measured: temperatures, pressures, vibrations and electrical power consumption. All measured values are recorded in a Delphin data logger system. The power data is recorded in three phases using current clamps and voltage transformers with a power meter integrated into the overall system. The connection to the Delphin data logger ProfiMessage device is made via Modbus. All relevant power data is recorded and saved with the application created in the ProfiSignal Klicks software and stored via reports, related to serial numbers. The entire system is connected to the PPS system via an SQL interface.
Typical areas of application
the combined power measurement
- Combined power measurement on engine test stands
- Electrical power measurement on household appliance test stands
- Analysis of key performance indicators
- Measurement of energy efficiency in accordance with EN 50001
- Recording the energy balance of frequency inverters
- Measuring the electrical power of pumps and drives
- Measurement on cooling and refrigeration systems
Suitable measurement technology for your application
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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