Portable instrument can be configured as oscilloscope and data recorder

June 13, 2017 // By Christoph Hammerschmidt
The Yokogawa DL350 combines features of a general-purpose oscilloscope and those of a data acquisition recorder in a single, portable instrument. Its unique selling proposal is its distinct configurability for a broad range of tasks and application environments such as automotive, electronics, energy, transportation, and mechatronics.

The DL350 ScopeCorder's plug-in modularity allows it to be configured to suit a variety of user applications, thanks to two slots populated with any of 18 different types of user-swappable input modules. For example, four isolated 16-bit voltage inputs can be measured at speeds of one 1MS/s alongside 16 temperatures or two separate CAN or LIN buses each containing 60 signals. Changing a single module enables measurement at 100 MS/s with 12 bits and 1 kV of isolation. Meanwhile there are 16 logic inputs always available, with even more available by swapping a further module. Among other modules are AC measurements using an RMS module in real time and a mathematics channel for signal processing and analysis once the recording has been completed.

The DL350 offers a choice of operating modes. Recorder mode is suitable for long-term, continuous recording for a specific duration and where the sampling interval is specified. A set-up wizard can be used in this mode to guide the operator quickly through the entire set-up process. Scope mode allows the DL350 to be used just like an oscilloscope with all the associated benefits, including comprehensive triggering and flexible memory use. Using the history memory enables up to 1000 separate triggered acquisitions to be captured to the internal memory so that the causes and effects of abnormalities can be carefully analysed.

Up to 5 Gpoints of data per module can be recorded directly to an SD card. This means that the DL350 can be used for continuous recording up to 50 days. For high-speed signals, up to 100 Mpoints per module of internal memory is available to capture fast transients. This is up to 10,000 times more than other portable oscilloscopes or oscilloscope/multimeters and allows signals to be captured with higher sample rates or over longer periods.