Hioki Memory HiCorder MR8848

Nagano, Japan, 25th June 2025 – Hioki E.E. Corporation is proud to announce the launch of the Memory HiCorder MR8848, a rugged, high-performance waveform recording solution built for the demanding environments of critical infrastructure maintenance. With its robust housing, isolated inputs, and advanced real-time recording capabilities, the MR8848 is designed for engineers who need reliable, precision measurements—even in the harshest field conditions.

The MR8848 succeeds the MR8847A, retaining its trusted form factor and measurement performance while integrating updates that meet today’s fieldwork demands. The device combines long-term recording capacity with high-speed sampling and supports simultaneous measurement of voltage, current, temperature, pressure, and other physical parameters—making it a versatile tool for infrastructure operators worldwide.
 

Side Profile of Hioki Memory HiCorder MR8848

Development Background

The Memory HiCorder MR8848 was developed in response to increasing global demand for high-reliability testing solutions that can operate in real-world field environments. As societies depend more heavily on critical infrastructure—such as power generation facilities, substations, UPS systems, and railways—the need to accurately capture, analyze, and troubleshoot complex electrical and physical phenomena has never been more urgent.

In many cases, engineers still rely on oscilloscopes for signal observation. However, oscilloscopes are typically designed for short-duration, high-speed signal capture in controlled laboratory settings. They often lack the robust isolation, long recording capabilities, and multi-channel versatility required in the field. Additionally, when measuring multiple systems with different potentials that share a common ground, the risk of short circuits can pose a serious hazard in live environments.

The Memory HiCorder, by contrast, is purpose-built for safe and accurate field measurements. With fully isolated input channels, the MR8848 enables simultaneous testing of high-voltage lines, control circuits, and sensor signals—without the risk of ground loops or damaging sensitive equipment. Its ability to continuously record long-duration waveforms makes it ideal for capturing rare or intermittent events, such as power dips, UPS switchovers, or turbine responses during load rejection.

Building on the proven reliability of the MR8847A, the MR8848 introduces key upgrades, including LAN 1000 BASE-T, USB 3.0, SSD storage up to 1 TB, and optional real-time saving (additional function the Direct Write to Storage MR9001-01 and factory option U8334)—making it even more suited for extended, high-speed measurement in demanding field conditions.

Whether for utility inspections, transport systems diagnostics, or infrastructure fault analysis, the MR8848 provides the precision, safety, and recording depth that oscilloscopes simply can’t match in real-world environments. It’s the trusted tool for engineers who need to get it right—on site, under pressure, and without compromise.
 

Key Features

1. Ruggedized for Harsh Environments

Equipped with protectors and a reinforced enclosure, the MR8848 is drop-resistant—ideal for power plants, rail depots, and outdoor substations.

2. Long-Duration Waveform Recording with Real-Time Saving

By combining a large-capacity 1 TB SSD (U8334) with the Direct Write to Storage option (MR9001), engineers can capture long-duration waveform data continuously—perfect for rail vehicle tests or UPS operation evaluations.

3. Safe, Isolated, Multi-Channel Measurements

Unlike oscilloscopes, the MR8848 offers channel-to-channel isolation, allowing safe simultaneous measurement across systems with different grounds (e.g., power and signal lines), helping prevent short circuits.

4. Field Printing with Tamper-Proof Output (Optional Printer U8351)

For on-site reporting, an optional built-in printer provides tamper-proof records—useful for regulated environments and maintenance documentation.

The factory-option printer lets you immediately print and share tamper-proof hard copies of your measurements right at the site, so that data cannot be tempered with.

5. Correlation Analysis

Record and analyze waveforms alongside environmental and mechanical variables like vibration, temperature, or strain—enabling root cause analysis and inter-phenomena correlation in complex systems.

Main applications

UPS Operation Testing

Ensure backup systems function correctly by simulating power failures and evaluating UPS reaction times. MR8848 captures high-speed transient fluctuations and multi-channel signals for both single-phase and three-phase systems.

Hydropower Load Rejection Testing

Validate safe system shutdown by analyzing waveforms during sudden load changes. Simultaneous logging of voltage, speed, pressure, and valve behavior enables operators to assess safety margins and regulatory compliance.

High-Voltage Circuit Breaker Timing Evaluation

Detect response time differences between breaker contacts for each phase in high-voltage systems. Hioki’s time difference measurement simplifies pass/fail assessment for utility engineers.

Railway Vehicle Diagnostics

Monitor rail vehicle performance under real-world conditions. Analyze motor current, brake pressure, and abnormal vibration across different parameters to ensure safe and efficient transit operation.

For more information, please refer to Memory HiCorder MR8848 Product website.

Contact us

For inquiries such as quotes, demonstrations, and trial usage, please use Hioki’s contact form for a personalized reply from your closest or most appropriate Hioki representative.

• The information provided is current as of the date of publishing.
• Please note that prices, specifications, and other information contained in this texts are subject to change without notice.
• The company names and product names used in this text are registered trademarks or trademarks of their respective companies.

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