Multipurpose Portable DL350 ScopeCorder Launched

Multipurpose Portable DL350 ScopeCorder Launched

Yokogawa launched its DL350 ScopeCorder –  a compact, portable combination measuring instrument. It is the most comprehensive fully portable measuring instrument available for capturing, displaying, recording and analyzing a wide variety of electrical and physical parameters in industry sectors including automotive, electronics, energy, transport and mechatronics. 

Like other models in Yokogawa’s ScopeCorder family, the DL350 combines features of a general-purpose oscilloscope and those of a high-performance data acquisition recorder in a single, portable instrument. 

 

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 current probes, temperature sensors, strain gauges, accelerometers and serial buses, the DL350 can deliver, without extra boxes or cables.

User-swappable Modules

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. Among other modules are AC measurements using an RMS module in real time and a mathematics channel for signal processing and analysis after the recording is finished.

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. 
  • 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 analyzed.

Continuous Recording Up to 50 Days

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 offer and allows signals to be captured with higher sample rates or over longer periods.

A high-resolution, high-speed sampling module, unique amongst portable measuring instruments, provides individually isolated 12-bit, 100 MS/s inputs, which can precisely measure and record transient waveforms (superimposed on inverter outputs, for example) and the edges of control signals which cannot be measured by traditional handheld recorders or oscilloscopes.

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. 

The user has a choice of a simple level trigger or enhanced triggers on such things as pulse width, waveform period and across multiple channels. For example, the wave window trigger is ideal for AC power-line monitoring, and enables voltage sags, surges, spikes, phase shifts or drop-outs to be easily captured (available for 40 to 1000 Hz waveforms).

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 first and foremost a field tool. However, it still provides the functionality users expect in a bench instrument. The sampling clock, trigger and start/stop controls are all available as external signals, so that a rotary angle encoder or degree wheel, for example, can be used as the sample clock to analyze engine rotation and performance.

The power in single and 3-phase systems can be evaluated. In addition, for fundamental waveforms of 50 or 60 Hz, up to 40 harmonic orders can be analyzed. Alternatively, it is possible to use the suite of FFT functions to perform full frequency analysis.

Advanced Features Support In-Vehicle Testing

The DL350 with /VE option and bus monitor module can decode CAN bus, LIN bus or SENT signals and display information such as engine temperature, vehicle speed and brake pedal position as trend waveforms and compare this with the analogue data coming from the actual sensors. This enables automotive engineers to gain an insight into the dynamic behaviour of the complete electromechanical system. An optional GPS unit (release pending in the EU) enables latitude, longitude, altitude, speed and motion direction data to be synchronized with the waveform data, perfect for drive testing, mobile testing or distributed field recordings. Moreover, the DL350 is vibration resistant due to an aluminum inner frame and an external rubber bumper, conforming to Japanese JIA DS1601 standard for resisting in-vehicle shock and vibration. 
 

More information: Yokogawa