Hioki Memory HiLogger LR8431
Model No :
Hioki LR8431
Part Code :


Hioki Memory HiLoggers are high-speed data loggers for recording multiple chanels of voltage, temperature, pulse or rotation signals, providing complete isolation between channels and strong noise resistance . The LR8431 logs data at 10ms speeds across 10 channels simultaneously, and features a bright color LCD for crystal clear waveform displays.

- Record measurement data on a USB flash drive for easy transfer to a computer
- Record to reliable Compact Flash cards during long-term measurement applications for increased peace of mind
- Replace storage media during real-time recording
- Improved thermocouple measurement accuracy and reference junction compensation accuracy
- Ten isolated analog input channels
- 10 ms sampling and recording across all channels

Major Applications
- Evaluating motors and inverters used in electric and hybrid vehicles
The LR8431-20 enables stable, low-noise measurement of high-speed, high-resistance targets
- Efficiency measurement and performance evaluation of air conditioning equipment

Technical Specifications
- Number of channels : Analog: 10 isolated channels using scanning input method
- Measurement parameters :
• Voltage : ±100 mV to ±60 V, 1-5V f.s. 6 ranges, Max. resolution 5µV
• Temperature (thermocouples) : -200 °C to 1800 °C
• Humidity : not available
- Totalized pulses : 0 to 1000M pulse, 1 range, Rotation count : 0 to 5000/n (r/s) f.s. 1 range
- Max. allowable input : DC 60 V (Analog input), DC -5 V to 10 V (Pulse input)
- Max. rated voltage to earth : AC 30 Vrms, DC 60 V

General Specifications
- Memory capacity : Internal storage: 3.5 M-words, External storage: CF card or USB memory stick
- External interface : USB 2.0 mini-B receptacle ×1; Functions: Control from a PC, Transfers files from the installed CF card to a PC
- Display : 4.3-inch WQVGA-TFT color LCD (480 × 272 dots)
- Functions : Save data to the CF card or USB memory stick in real time, Numerical Calculations, etc.