Yokogawa: compact, portable measuring instrument
The Yokogawa DL350 ScopeCorder is the most comprehensive fully portable measuring instrument available for capturing, displaying, recording and analysing a wide variety of electrical and physical parameters in industry sectors including automotive, electronics, energy, transport and mechatronics. The DL350 combines features of a general-purpose oscilloscope and those of a high-performance data acquisition recorder in a single, portable instrument. Unlike alternative portable measuring solutions such as oscilloscopes and combined oscilloscope/multimeters, it adds exceptionally high levels of precision and accuracy to field measurements, isolated inputs for measurements at high voltage levels, and long-memory capabilities that allow long-term recording for many hours or even days.
Another key feature of the DL350 ScopeCorder is its plug-in modularity, which allows it to be configured to suit a variety of user applications. Whether carrying out straightforward high-precision voltage measurements or handling a blend of signals coming from such things as current probes, temperature sensors, strain gauges, accelerometers and serial buses, the DL350 can deliver, without extra boxes or cables.
This flexible input capability is achieved by incorporating two slots which are populated with any of 18 different types of user-swappable input modules. This means, for example, that four isolated 16-bit voltage inputs can be measured at speeds of one megasample per second (MS/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.
The DL350 offers compatibility with many existing ScopeCorder input modules and thereby provides a potential cost saving to existing users. For users who are more familiar with chart recorders than with long-memory oscilloscopes, 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.
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. A high-resolution, high-speed sampling module. An 8.4-inch resistive touch screen has been adopted to deliver superior noise-free performance. In environments with the highest levels of electrical noise such as motors and inverters, measurement precision is maintained whilst enabling the unit to be operated using gloved hands or a stylus. Even when the backlight is switched off, and the touch screen is inactive, the user still has access to the START/STOP, manual trigger and data saving keys.
A DL350 can be left unattended with the captured waveform automatically saved to a file, or a notification email sent if and when it triggers. The DL350 is based on an A4-sized compact chassis and weighs less than 2.6 kg excluding battery and under 4Kg when populated with a battery and 2 x 4 channel modules. The built-in rechargeable battery provides three hours of continuous operation which, when combined with either mains or 10-30 V DC power, provides the DL350 with a highly reliable power supply and worry-free recording for tests that are difficult or expensive to repeat.