MR8880-20 - HIOKI High Speed Portable Memory Recorder, 4Ch

Note: Input cords and Battery pack are not included. Purchase the cords appropriate for your application separately. Printer unit MR9000 is the optional, sold separately.

Capturing electrical events accurately in the field is essential for troubleshooting, maintenance, and equipment diagnostics. The HIOKI MR8880 Memory HiCorder is designed as a rugged data acquisition recorder for service and maintenance applications, allowing users to capture high- to low-voltage signals in one device. With 4 isolated analog channels and the ability to accept direct input up to 600 V, it is well suited for recording waveforms in 3-phase power systems and other demanding field environments. 

One of the biggest strengths of the HIOKI MR8880 is its isolation performance. HIOKI states that the instrument offers CAT III 600 V isolation, allowing users to directly measure a 480 V power line. The four completely isolated analog channels make it possible to record all three phases of a power line while still leaving one additional channel available for another signal. This gives maintenance teams and field engineers a practical way to analyze multiple signals at the same time without compromising safety or measurement integrity. 

The MR8880 is built specifically for real-world service conditions. HIOKI highlights an operating temperature range of -10°C to 50°C, along with resistance to mechanical shock and vibration. The unit ships with side protectors, supporting reliable use in industrial sites, utility environments, and maintenance work where instruments are often exposed to rough handling and changing environmental conditions. For technicians who need portable waveform recording outside the lab, this rugged design is a major advantage.

The instrument combines waveform recording flexibility with practical triggering functions. HIOKI explains that the MR8880 can be used to capture events such as motor startup current, PLC timing signals, and voltage drops during a power outage. Pre-trigger settings allow users to record what happened both before and after the trigger event, which is especially useful when diagnosing intermittent faults or startup issues. Built-in cursor functions also make it easier to identify key waveform details such as peak current values directly on the instrument. 

From a channel and measurement standpoint, the MR8880 includes 4 analog channels and 8 logic channels as standard. The analog inputs are isolated from each other and from the frame, which improves safety and measurement reliability in multi-signal environments. Voltage measurement ranges span 10 mV to 100 V/div across 13 ranges, with mode switching between instantaneous waveform and RMS value display. HIOKI also specifies frequency characteristics from DC to 100 kHz, giving the recorder the ability to capture both slower trends and relatively fast waveform events.

The HIOKI MR8880 supports both high-speed recording and real-time recording. In high-speed mode, the time axis ranges from 100 µs to 100 ms/div, while real-time recording intervals range from 100 µs to 1 minute. This gives users the flexibility to observe short transient events as well as longer-duration system behavior using the same recorder. Memory capacity is specified as 14-bit × 1M words per channel, supporting detailed waveform capture for analysis and documentation.

Ease of use is another practical advantage. HIOKI notes that settings can be configured easily with the PRESETS function, helping users save time when setting up recurring measurement tasks. The MR8880 also features a 5.7-inch VGA-TFT color LCD, making waveform viewing more practical in the field. For users who need on-site hardcopy results, an optional MR9000 printer unit can be added, allowing waveform printouts on thermal paper. 

Data storage and transfer are designed to support maintenance workflows. The MR8880 includes a CF card slot and USB memory support for removable storage. It also provides a USB 2.0 mini-B interface for transferring files from installed storage media to a PC and for external PC control. This makes it easier to save field data, transfer results for reporting, and keep organized records of waveform events for later analysis. 

Power flexibility is another useful feature for field work. The MR8880 can operate from the included AC adapter, an optional battery pack, eight AA alkaline batteries, or a 10 to 28 V DC power supply. HIOKI specifies about 3 hours of continuous use with the battery pack and about 40 minutes with AA batteries under stated conditions. This gives technicians multiple options depending on whether they are working in a plant, inside a panel, or at a remote maintenance location. 

Physically, the MR8880 remains portable enough for field service work. HIOKI lists dimensions of 205 mm × 199 mm × 67 mm and a weight of about 1.66 kg with the battery pack installed. Standard accessories include the instruction manual, AC adapter, alkaline battery box, strap, and USB cable. Input cords and the battery pack are purchased separately so users can select the accessories best suited to their application. 

Overall, the HIOKI MR8880 Memory HiCorder is a strong solution for maintenance teams and service engineers who need a rugged, portable, and isolated waveform recorder for power systems and industrial troubleshooting. With direct 600 V input, 4 isolated analog channels, 8 logic channels, flexible triggering, and field-ready durability, it is well suited for capturing power line events, startup current, control timing, and outage-related voltage changes.

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