November 10, 2013. Yokogawa has added two new instruments to its ScopeCorder family of portable multi-channel data-acquisition recorders and oscilloscopes. The new DL850E and DL850EV (Vehicle Edition) ScopeCorders incorporate a number of new features to allow engineers to measure and analyze a wealth of signals in real-time and to speed up development and fault finding in areas such as power electronics, mechatronics, and transportation.
In addition to the high-speed multi-channel capabilities plus long memory and isolated input channels found in Yokogawa’s established ScopeCorder family, the new DL850E instruments have the ability to carry out the real-time measurement and analysis of electrical power.
“Yokogawa ScopeCorders are widely used in electro-mechanical applications where measurements of physical quantities need to be displayed and analyzed alongside electrical signals,” said Tom Quinlan, Yokogawa’s general manager for test and measurement, for North America. “Their potential range of applications has suddenly become much wider with the ability to make real-time power measurement and analysis.”
All products in the ScopeCorder family are equipped with a set of basic arithmetic mathematical functions such as addition, subtraction, division, multiplication, and Fast Fourier Transformation, but the new DL850E versions also offer the /G5 option for real-time measurement of electrical power, as well as the existing /G3 option for real-time mathematical computations and digital filtering and the /G2 option for user-defined computations.
With the /G5 electrical power option, trend calculations involving active power, power factor, integrated power, and harmonics can be carried out at data-update rates up to 100 kS/s using a dedicated digital signal processor (DSP) that is able to calculate and display up to 125 types of electrical power related parameters in real-time. This enables the user to display raw waveform signals such as voltages and currents along with calculated power parameters as well as the capability to trigger on any or all of them. Harmonics can be displayed as trends of each order, bar-graphs and vector diagrams. Both RMS and power-analysis modes are available. In addition to the powerful power calculations, the /G5 option also contains all the functionality of the /G3 real-time mathematics option.
Like existing products in Yokogawa’s ScopeCorder family, the DL850E combines features from a high-performance digital oscilloscope and a multichannel data-acquisition recorder. It can capture and analyze both transient events and trends over time periods from milliseconds up to 200 days, storing acquired data in the large acquisition memory, the internal hard disk, and/or an external PC hard disk.
Flexible modular inputs enable the DL850E to combine measurements of electrical signals, physical parameters from sensors, and data from CAN/LIN serial buses. A choice of 17 input modules allows the instrument to be configured up to a maximum of 128 channels, giving engineers a thorough insight into any application by synchronizing the measurement of different types of electrical and physical signals. Individually isolated and shielded input channels provide high resolution and high sample rates, while Yokogawa’s unique “dual capture” feature allows transient signals to be captured during long-term measurements by recording at two different sampling rates.
The DL850E and DL850EV ScopeCorders are equipped with a large and fast acquisition memory, allowing storage of up to 2 gigapoints of data and providing high sample rates of up to 100 MS/s on multiple channels simultaneously. Yokogawa’s history memory function allows users to quickly isolate and examine individual waveform records for detailed analysis.
The ScopeCorder DL850EV Vehicle Edition is designed for engineers working in the automotive and railway industry. A common measurement challenge is to combine measurements of electrical signals, physical performance parameters acquired by sensors, and CAN- or LIN-bus data transmitted by the powertrain management system. The DL850EV Vehicle Edition addresses these requirements by providing a thorough insight into the dynamic behavior of the electromechanical system. The result is considerable time savings as compared to other approaches such as analysis on a PC or the use of other software.
A DC power option allows the DL850EV to be used in a vehicle, with power being supplied by the vehicle’s DC battery. The DC power option allows AC and DC power supplies to be used together to ensure a highly reliable power source. If the AC power goes down, the DL850EV instantly switches to a DC input without interrupting the measurement.
The DL850E and DL850EV ScopeCorders are supported by a standard 3-year warranty.