Overview
The HIOKI LR8431 Memory HiLOGGER is engineered for demanding measurement environments where accuracy, speed, and reliability are essential. With full isolation across all 10 analog channels, plus 4 pulse/rotation input channels, it captures voltage, thermocouple temperature, and pulse signals with minimal interference. Thanks to its 10 ms sampling across all channels and ability to record via USB flash drive or CompactFlash, it’s suited for R&D, industrial, automotive, and laboratory applications. The rugged build, bright wide LCD display, and optional battery power add portability without sacrificing performance.
Key Features
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Ten (10) electrically isolated analog input channels capable of measuring DC voltage and temperature via thermocouples.
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Four (4) pulse/rotation input channels (for count accumulation, RPM, etc.).
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High-speed sampling: 10 ms across all analog channels.
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Dual storage media: supports both USB flash drives and CF cards; during real-time recording you can swap media without stopping measurement (within limits).
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Improved temperature measurement accuracy for thermocouples. For example, with K-type thermocouples at ~50°C, previous models had ±3°C error; LR8431 improves to approx ±1.5°C.
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Fully isolated analog inputs to reduce cross-channel interference and enhance safety in mixed-potential environments.
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Wide and bright QVGA TFT LCD for waveform monitoring and real-time status.
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Compact, portable design (~176 × 101 × 41 mm, 550g without optional battery).
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AC adapter support (100-240V) + optional battery pack (model 9780) for field use.
Applications
The LR8431 is especially suited for:
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Electric / hybrid vehicle (EV / HV / PHV) development: for measuring motor / inverter behavior under rapidly changing loads.
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Industrial process monitoring: multi-point voltage and temperature logging in power electronics, HVAC, renewable energy systems.
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Performance testing of air-conditioning, cooling, and thermal insulation systems.
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Electronic component development: internal temperature profiling, PCB / module thermal behavior.
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Lab research & qualification testing where isolated inputs, accurate thermocouple measurement, and fast sampling are critical.
Technical Specifications
| Parameter | Specification |
|---|---|
| Analog Input Channels | 10 isolated analog channels (voltage + thermocouple temperature) |
| Pulse / Rotation Channels | 4 channels |
| Sampling Interval | 10 ms (fastest) for all analog channels; adjustable intervals up to 1 hour |
| Voltage Measurement Range | Up to DC 60V (for analog inputs) |
| Thermocouple Types Supported | K, J, E, T, N, R, S, B |
| Thermocouple Temp Range | approx. –200°C to +2000°C depending on type; resolution ~0.1°C for many ranges |
| Display | Wide QVGA TFT color LCD |
| Storage Media | CompactFlash (CF) + USB flash drive |
| Media Swapping | Can swap storage media during real-time recording (new media must be inserted within ~2 mins during high-speed recording) |
| Power Supply | AC adapter (Z1005, 100-240V); optional battery pack 9780 (external) approx 2.5 h runtime |
| Dimension (W×H×D) | 176 × 101 × 41 mm (without battery) |
| Mass / Weight | ~ 550 g (without battery) |
| Operating Environment | Industrial / laboratory conditions per official manual |
Package Contents
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Hioki LR8431 main unit
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AC Adapter (Model Z1005)
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USB connection cable
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Software CD or download for Logger Utility application and user manual
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Measurement guide / User guide
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Optional / sold separately: Battery Pack 9780, CF cards, thermocouples
Call to Action
If you’re looking for a reliable, fast, and isolated multi-channel data logger for demanding testing & development, add the Hioki LR8431 to your toolkit. Contact us today for pricing, in-stock status, or demo requests. Ensure you have the optional accessories (battery, CF cards, thermocouples) ready for full functionality.
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