Sefram DAS1820: High-Speed Data Acquisition, Now More Portable Than Ever

In today’s fast-paced engineering and testing environments, data acquisition systems need to strike a balance between performance, flexibility, and portability. The Sefram DAS1820 Portable High-Speed Data Acquisition System – developed by Sefram and B&K Precision – does exactly that.

Built as a compact and cost-effective alternative to the DAS1800, the DAS1820 delivers the same powerful architecture and advanced capabilities in a streamlined two-slot configuration. It’s designed for professionals who need reliable, high-speed measurements without the bulk or cost of larger systems.

Compact Design, Full Capability

The DAS1820 is essentially a two-slot version of the DAS1800, meaning you get the same trusted platform in a smaller footprint. Despite its reduced size, it maintains full compatibility with the DAS1800’s measurement modules and plug-and-play functionality – so there’s no compromise on versatility.

This shared ecosystem allows engineers to easily configure the system based on their application needs, making it suitable for everything from lab testing to field diagnostics.

Flexible Measurement with Modular Inputs

One of the DAS1820’s biggest strengths is its modular design. It supports four types of interchangeable input modules:

• Universal (4 channels)
• Multiplexed (8 channels)
• High Impedance (4 channels)
• High Voltage (4 channels)

Using the multiplexed module, the system can handle up to 16 analogue input channels, while the high-voltage module enables measurements up to ±1500 VDC – ideal for demanding power and industrial environments.

It also fully supports temperature measurements using thermocouples and RTDs, with a built-in sensor library that allows users to store and recall sensor configurations quickly. This is especially useful for repeat testing and standardised workflows.

High-Speed Performance for Transient Capture

When it comes to performance, the DAS1820 is built to capture fast-changing signals with precision:

• Up to 1 MSa/s sampling rate per channel (up to 8 channels)
• Accurate capture of fast transient events
• Simultaneous acquisition at up to three different sampling rates

This multi-rate capability allows users to monitor different signals with varying levels of detail – all at the same time – while recording them into separate files for easier analysis.

A standard 500 GB internal SSD ensures there’s plenty of space for long-term data logging, even in high-resolution applications.

Advanced Analysis and Power Measurement

Beyond data capture, the DAS1820 offers powerful onboard analysis tools that reduce the need for external processing:

• Real-time scripting for single or multi-channel calculations
• Built-in power analysis for:
  • DC systems
  • Single-phase networks
  • Three-phase systems (50 Hz, 60 Hz, 400 Hz)

For applications requiring precise timing across multiple systems, the DAS1820-SYNC model supports synchronisation via IRIG, GPS, and PTP, ensuring accurate alignment in distributed measurement setups.

Designed for the Field

Weighing just 5 kg with the optional battery (D1820-BAT) and two installed modules, the DAS1820 is built for portability without sacrificing performance.

Whether you’re working in:

• Research & Development
• Industrial maintenance
• Energy and power systems
• Field diagnostics

…the DAS1820 provides a reliable, high-performance solution.

Final Thoughts

The DAS1820 successfully brings together performance, flexibility, and portability in a single, cost-effective platform. By leveraging the proven DAS1800 architecture, it gives users access to advanced data acquisition capabilities in a more compact and accessible form.

For more information, view our Product Page.