Yokogawa DLM3000HD Series High-Definition Oscilloscope

Description

Yokogawa DLM3000HD High-Definition Oscilloscope Brochure

The Yokogawa DLM3000HD Series High-Definition Oscilloscope marks a significant leap forward in precision measurement, engineered to meet the rigorous demands of contemporary high-performance and intelligent system development. This advanced instrument is ideally suited for engineers working on cutting-edge applications such as electric vehicles, sophisticated motor controls, and highly efficient electronic designs, particularly those involving power semiconductor technologies and complex mechatronics. With its capability to deliver up to 16 bits of high resolution, coupled with a best-in-class startup speed and robust noise immunity, the DLM3000HD provides an extensive suite of analysis features. Its compact and portable design, alongside an intuitive 8.4-inch touchscreen, ensures that advanced measurement capabilities are accessible and adaptable for everyday engineering use, establishing a new benchmark for high-definition oscilloscopes in the market.

The DLM3000HD is designed to tackle the complexities of modern electronics, offering a blend of high performance, advanced analysis tools, and user-friendly operation. Its high-definition display and superior vertical resolution allow for the detailed observation of subtle signal anomalies that might be missed by conventional oscilloscopes. This is critical for ensuring the reliability and performance of advanced systems where even minute imperfections can lead to significant operational issues.

Unrivaled Vertical Resolution for Detailed Analysis

Setting a new standard for high definition, the DLM3000HD excels with its inherent 12-bit vertical resolution, a substantial improvement over traditional 8-bit oscilloscopes. This fundamental precision is further enhanced by its innovative “High-Resolution Mode,” which elevates the vertical resolution to an impressive 16 bits. This means the DLM3000HD provides an astonishing 16 times more detail than existing high-definition oscilloscopes, allowing engineers to discern even the most subtle waveform characteristics. This superior resolution is particularly crucial for accurately capturing and analyzing minute events such as ringing and overshoot in high-speed signals, ensuring that critical details are not missed. The ability to measure with such impressive accuracy empowers engineers with unparalleled insight into their designs, leading to more robust and reliable product development.

Understanding Vertical Resolution:

• 8-bit Oscilloscope: Offers (2^8 = 256) discrete voltage levels per division.
• 12-bit DLM3000HD (Native): Offers (2^{12} = 4096) discrete voltage levels per division. This is 16 times the detail of an 8-bit scope.
• 16-bit DLM3000HD (High-Resolution Mode): Offers (2^{16} = 65,536) discrete voltage levels per division. This is 64 times the detail of an 8-bit scope and 16 times the detail of the DLM3000HD’s native 12-bit resolution.

The increased vertical resolution allows for:

• Accurate measurement of small signal variations: Essential for monitoring control signals, sensor outputs, and power supply ripple.
• Precise identification of signal integrity issues: Such as jitter, noise, and distortion, which can be exacerbated in high-speed digital circuits.
• Detailed analysis of switching transients: In power electronics, where fast-changing voltage and current levels are critical for efficiency and reliability.

Expansive Channels, Bandwidth, and Memory Capacities

The DLM3000HD offers exceptional flexibility in channel configuration and data acquisition. A single unit provides 4 analog channels along with 8-bit logic inputs, enabling comprehensive multi-channel measurements. For more complex systems requiring extensive monitoring, the DLM3000HD can be synchronized with a second unit via “DLMsync” to expand synchronous measurement capabilities up to 8 analog channels. This seamless integration ensures that engineers can evaluate entire systems with a single test setup. Furthermore, the oscilloscope boasts a wide bandwidth of 350 or 500 MHz and a high sample rate of up to 2.5 GS/s across all four channels simultaneously. Coupled with an expansive measurement memory of up to 1 GigaPoints for single-shot waveforms (odd channels only), it facilitates long-duration measurements without compromising the sample rate, capturing even momentary high-speed phenomena.

Channel Configurations:

• Standard Configuration: 4 analog channels + 8-bit logic analyzer inputs.
• Expanded Configuration (DLMsync): Up to 8 analog channels by synchronizing two DLM3000HD units. This allows for the simultaneous monitoring of a larger number of signals within a complex system, such as a multi-phase motor drive or a distributed control system.

Bandwidth and Sample Rate:

• Bandwidth Options: 350 MHz or 500 MHz. This determines the highest frequency sine wave the oscilloscope can accurately measure.
• Sample Rate: Up to 2.5 GS/s (Giga Samples per second) on all analog channels simultaneously. The Nyquist-Shannon sampling theorem states that to perfectly reconstruct a signal, the sampling rate must be at least twice the highest frequency component of the signal. A sample rate of 2.5 GS/s allows for the accurate capture of signals with frequency components up to 1.25 GHz, ensuring that even fast-rising edges and transient events are well-represented.

Measurement Memory:

• Up to 1 GigaPoints (1 Gpts): This massive acquisition memory allows for the capture of very long waveforms at high sample rates. This is essential for:
  • Long-term event monitoring: Observing system behavior over extended periods to capture intermittent faults or drift.
  • Analyzing complex protocols: Such as serial communication buses, where data packets can be long and require detailed inspection.
  • Capturing low-frequency phenomena: While maintaining high-speed sampling for detailed analysis of specific events within that period.

The combination of multiple channels, high bandwidth, high sample rate, and extensive memory makes the DLM3000HD a powerful tool for analyzing complex, high-speed systems.

Advanced History and Search for Unpredictable Events

A pivotal feature for debugging and analysis is the DLM3000HD’s “History and Search” function. This innovative capability automatically saves previously captured waveforms, allowing users to store up to 200,000 triggered waveforms in the acquisition memory. Engineers can then display one or all of these historical waveforms on the screen, performing detailed cursor measurements, computations, and other analytical operations. This is particularly invaluable for analyzing rarely-occurring abnormal signals, especially when the trigger conditions are difficult to define due to inconsistent waveform shapes. The DLM3000HD also provides multiple intuitive search methods, including specifying rectangular or polygonal zones on the screen, or searching for specific waveform parameters such as abnormal voltage values or pulse widths. This comprehensive search functionality significantly streamlines the identification of elusive anomalies.

How History and Search Works:

1. Automatic Waveform Saving: As the oscilloscope acquires data, triggered waveforms are automatically saved into a dedicated history memory.
2. Large History Capacity: Up to 200,000 triggered waveforms can be stored. This vast number allows for the capture and analysis of many occurrences of an event, even if it happens infrequently.
3. On-Demand Playback and Analysis: Users can recall any of the stored historical waveforms for detailed examination. This includes:
   • Cursor Measurements: Precise measurements of voltage, time, frequency, and other parameters.
   • Waveform Math: Performing calculations like addition, subtraction, multiplication, and division between waveforms.
   • Waveform Analysis: Applying built-in analysis functions to historical data.

Advanced Search Capabilities:

The DLM3000HD goes beyond simple playback by offering sophisticated search tools to quickly locate specific events within the vast history memory:

• Zone Search: Define a rectangular or polygonal area on the screen. The oscilloscope will search for waveforms that cross or fall within this defined zone. This is useful for identifying events that exceed certain voltage thresholds or occur within specific time windows.
• Parameter Search: Search for waveforms based on specific measured parameters. This can include:
  • Abnormal Voltage: Find waveforms where the voltage exceeds a defined maximum or falls below a defined minimum.
  • Pulse Width: Search for pulses that are shorter or longer than a specified width.
  • Frequency: Identify waveforms with a particular frequency characteristic.
• Event Markers: Found waveforms are clearly marked on the main display, allowing for quick navigation between them.

This feature is a game-changer for debugging intermittent issues, characterizing rare events, and understanding the behavior of complex systems where failures might not be easily reproducible.

Intuitive Zoom and Search for Deep Waveform Inspection

Understanding complex multi-channel waveforms captured in the DLM3000HD’s long memory necessitates efficient navigation and detailed inspection. The “Zoom and Search” feature, integrated with the highly responsive touchscreen and dedicated zoom keys/knob, enables rapid and precise vertical and horizontal zooming. Users can display two independently zoomed waveforms simultaneously, even with different time axis scales, which is incredibly useful for examining the “cause” and “effect” of events separated by time, a common requirement in software debugging. An “Auto Scroll” function further enhances this by automatically sweeping the zoom window across the waveforms. Additionally, users can employ multiple criteria to automatically find and zoom into specific features within the waveform for further inspection, with the locations of these found waveforms clearly marked on the screen, simplifying the process of detailed fault isolation and analysis.

Key Features of Zoom and Search:

• Responsive Touchscreen and Dedicated Controls: The 8.4-inch touchscreen, along with physical zoom keys and a rotary knob, provides a fluid and intuitive user experience for navigating through large amounts of data.
• Independent Zoom Windows: The ability to display two zoomed waveforms with different time scales simultaneously is a powerful analytical tool. This allows engineers to:
  • Correlate events: Observe a trigger event on one scale and zoom in on its detailed aftermath on another.
  • Compare time-shifted signals: Analyze the relationship between a control signal and its corresponding output signal, even if they are not perfectly aligned in time.
• Auto Scroll Function: Automatically sweeps the zoom window across the captured waveform, allowing users to quickly scan through long records without manual intervention.
• Multi-Criteria Search and Zoom: Users can define complex search criteria (combining various parameters and zones) to automatically locate specific features of interest within the waveform data. The oscilloscope then automatically zooms in on these identified sections for detailed examination.
• Visual Event Markers: Identified features are clearly marked on the waveform display, facilitating quick navigation and analysis.

This feature set significantly reduces the time required to find and analyze specific signal behaviors within large datasets, accelerating the debugging and verification process.

Robust Triggering and Real-Time Filtering Capabilities

The DLM3000HD provides a comprehensive suite of “Triggers” designed to isolate specific events with precision. It boasts easy-to-configure trigger types, including standard Edge, Enhanced, and B triggers, and crucially, allows for the intelligent combination of analog and logic inputs to create highly specific trigger conditions. Complementing its robust triggering, the DLM3000HD incorporates powerful “Filters” with optimum noise reduction. These real-time low-pass filters support a wide range of frequencies, from 8 kHz up to 200 MHz, with 15 selectable cutoff frequencies available for each channel. Importantly, waveforms are filtered prior to storage in memory, which allows for stable triggering even on signals heavily superimposed with noise. This combination of advanced triggering and effective real-time filtering ensures reliable signal acquisition and analysis in noisy environments.

Advanced Triggering Capabilities:

• Standard Triggers:
  • Edge Trigger: Triggers when the signal crosses a specified voltage level with a defined slope (rising or falling).
  • Enhanced Trigger: Offers more sophisticated edge triggering with options for delay and pulse width.
  • B Trigger (Pattern Trigger): Triggers based on a specific sequence of logic states across multiple digital channels.
• Logic and Analog Triggering Combinations: The ability to combine conditions from both analog and digital channels provides immense flexibility in isolating complex events. For example, triggering an analog event only when a specific digital signal is active.
• Advanced Trigger Types (May vary by model/options): Including Glitch, Runt, Window, Video, and Serial (e.g., I2C, SPI, UART) triggers for specific application needs.

Real-Time Filtering for Noise Reduction:

• Low-Pass Filters: These filters are essential for reducing unwanted high-frequency noise that can obscure important signal details or cause false triggers.
• Frequency Range: 8 kHz to 200 MHz, offering a wide spectrum of filtering options.
• 15 Selectable Cutoff Frequencies: Provides granular control over the filter’s behavior, allowing engineers to optimize noise reduction without significantly distorting the desired signal.
• Filtering Before Memory Storage: This is a critical advantage. By applying the filter to the acquired signal before it is saved into the acquisition memory, the DLM3000HD ensures that the displayed and recorded waveform is already clean. This leads to:
  • Stable Triggering: Even if the raw signal is noisy, the filtered signal can provide a reliable trigger point.
  • Clearer Waveform Visualization: Reduced noise makes it easier to identify signal characteristics and perform accurate measurements.
  • Improved Analysis: Subsequent analysis operations are performed on cleaner data, leading to more accurate results.

This combination of powerful triggering and pre-memory filtering is vital for engineers working with noisy environments or sensitive signals.

Seamless Multi-Unit Synchronization with DLMsync

For applications demanding more than four channels, the DLM3000HD offers the “DLMsync Two-Unit Connection” capability (with the /SY option). By connecting two DLM3000HD Series models with a dedicated cable, engineers can achieve synchronous measurement of up to eight channels, effectively transforming two individual oscilloscopes into a single, cohesive measurement system. In this synchronized setup, captured waveforms are displayed on each unit, triggers operate in common, and critical parameters such as record length, sample rate, acquisition settings, and horizontal axis scale settings are linked across both units. Operations are shared between the main and sub-units; for instance, zooming in on a waveform on one unit automatically mirrors the zoom on the corresponding waveform on the other unit. The DLM3000HD also includes “IEEE1588 Synchronous Support,” enhancing its utility in distributed measurement systems.

Key Aspects of DLMsync:

• Expansion to 8 Channels: The primary benefit is doubling the analog channel count from 4 to 8 by linking two DLM3000HD units. This is indispensable for complex systems requiring simultaneous monitoring of numerous signals.
• True Synchronization: DLMsync ensures that both oscilloscopes operate as a single instrument.
  • Common Triggering: A single trigger event on either unit will initiate acquisition on both.
  • Linked Settings: Critical acquisition parameters such as sample rate, record length, and horizontal scale are synchronized across both units, ensuring consistent data capture.
• Integrated Display and Control: Waveforms from both units are displayed on their respective screens, and operations like zooming or panning on one unit are mirrored on the other for corresponding waveforms. This creates a unified view of the entire measurement system.
• Master-Slave Operation: One unit acts as the “main” unit, controlling the overall acquisition and settings, while the other acts as the “slave” unit.
• IEEE1588 Synchronous Support: This precision time-protocol standard allows for highly accurate time synchronization between distributed measurement devices. This is crucial for applications where precise timing across multiple locations is essential, such as in advanced industrial automation or communication systems.

DLMsync transforms the DLM3000HD into a scalable measurement platform, allowing engineers to address increasingly complex multi-channel measurement needs without compromising synchronization or ease of use.

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