Hioki LR8432 Heat Flow Logger

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  • Heat Flow Logger
  • 10 ch isolated inputs
  • Heat flow measurement function
  • DC Voltage/ temperature with Thermocouple/ Cumulative pulses/ Rotation measurement
  • Minimum 10 ms interval
  • Trend graph display
  • Realtime Recording to CF card or USB memory
  • Improved thermocouple measurement accuracy
  • USB Communication

Discover the possibilities

More information

Hioki LR8432 Heat Flow Logger

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 Hioki LR8432 is a handheld 10-channel data logger especially designed for heat flow measurement. The Heat Flow Logger is ideal for evaluating insulation performance and analyzing the causes of temperature change.


Key Features

  • Use a heat flow sensor to measure the movement and volume of heat energy
  • Measure of temperature and voltage
  • 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
  • Ten isolated analog input channels
  • 10 ms sampling and recording across all channels
  • Record raw waveforms and post-calculation waveforms at the same time. (Heat transmission coefficient processing)
  • Two graduations can be displayed with a double gauge


Principal Applications

  • Automotive market (evaluating the flow of heat into the vehicle interior from the engine compartment, assessing heat damage to vehicle parts, identifying sources of heat, etc.)
  • Residential construction market (evaluating the insulation performance of building materials, evaluating the performance of radiant heating systems, etc.)

Basic specifications

Accuracy guaranteed: 1 year

Specialized functions for heat flow measurement- Easy scaling settings: directly enter the sensitivity of the heat flow sensor \n- Calculations: waveform processing function for the analysis of temperature and heat flow (Simple average, moving average, integration, heat transmission coefficient), Integration with numerical calculations
Analog inputs[No. of channels] 10 isolated analog channels using scanning input method (M3 mm dia. screw terminal block) \n[Voltage measurement range] ±10 mV to ±60 V, 1-5V, Max. resolution 500 nV \n[Temperature : thermocouples] −200 ˚C to 1800 ˚C (depending on sensor), thermocouples (K, J, E, T, N, R, S, B), Max. resolution 0.1 ˚C \n[Humidity] not available \n[Max. allowable input] 60 V DC \n[Max. rated voltage between input channels] [Max. rated voltage to earth] \n30 AC Vrms, 60 V DC (max. voltage between input channel terminals, and from terminals to chassis ground without damage)
Pulse inputs[No. of channels] 4 pulse input channels (requires CONNECTION CABLE 9641, \nall pulse inputs share common ground with the main unit) \n[Totalized pulses] 0 to 1000M (count) (No-voltage ‘a’ contact, open collector or voltage input), Max. resolution 1 pulse \n[Rotation count] 0 to 5000/n (r/s), Resolution 1/n (r/s) * n = pulses per rotation (1 to 1,000) \n[Max. allowable input] 0 to 10 V DC \n[Max. rated voltage between input channels] [Max. rated voltage to earth] Non-isolated
Recording intervals10 ms to 1 hour, 19 selections (All input channels are scanned at high speed during every recording interval)
Selectable filters50 Hz, 60 Hz, or OFF (digital filtering of high frequencies on analog channels)
Memory capacityInternal storage: 3.5 M-words, External storage: CF card or USB memory stick (only the HIOKI CF cards are guaranteed for correct operation)
External interfaceUSB 2.0 mini-B receptacle ×1; Functions: Control from a PC, Transfers files from the installed CF card to a PC (cannot transfer files from the connected USB memory stick to a PC via USB communication), Data copy between CF card and USB memory stick
Display4.3-inch WQVGA-TFT color LCD (480 × 272 dots)
FunctionsSave data to the CF Card or USB memory stick in real time, Numerical Calculations, etc.
Power supplyAC Adapter Z1005: 100 to 240 VAC (50/60 Hz), 30 VA Max. (including AC adapter), 10 VA Max. (main unit only) \nBattery Pack 9780: Continuous use 2.5 hours (@25°C/77°F), 3 VA Max. \nExternal power source: 10 to 16 V, 10 VA Max. (please contact HIOKI distributor for cable; less than 3 m/9.84 ft cable length)
Dimensions and mass176 mm (6.93 in) W × 101 mm (3.98 in) H × 41 mm (1.61 in) D, 550 g (19.4 oz) (Battery Pack 9780 not installed)
Included accessoriesMeasurement Guide ×1, CD-R (Instruction manual PDF, Logger Utility Instruction Manual PDF, Data acquisition application program Logger Utility) ×1, USB cable ×1, AC Adapter Z1005 ×1

LabVIEW and MATLAB support


Compatible modelsLabVIEWMATLAB script

A heat flow logger that’s ideal for addressing the root cause of changes in temperature

\nThe LR8432-20 is a heat flow logger that visualizes quantities of heat. \nBy using a heat flow sensor to visualize movements of thermal energy (heat flows) and quantities of thermal energy, you can obtain data that serves as a leading indicator of changes in temperature. \n \nHioki LR8432 \n

Heat flow loggers as a useful tool for formulating thermal measures in R&D and performance evaluation

Visualizing heat flows (inflows and outflows) and quantities of heat with a heat flow logger is useful when you need to implement more precise air-conditioning control or formulate thermal measures as part of the product development process. Isolation of heat generated and dissipated in automotive parts. Evaluate the thermal performance of building materials. Measure the energy efficiency of consumer electronics. Study the impact of body heat. Diagnose the deterioration of insulation material in plant piping. Index temperature fluctuation in agriculture and civil engineering. Quality control of food storage \n- Development of materials, sportswear and winter wear etc.Hioki LR8432 \n

Display heat flow and temperature gauges simultaneously

Heat flow and temperature gauges can be displayed simultaneously for data measured with the Heat Flow Logger LR8432-20. \nDisplay the gauges for data you want to compare at the same time in order to see changes in temperature and heat flow at a single glance.

Hioki LR8432 \n \nFor more information: Hioki