Hukseflux LR8432 Test Report Hioki User Guide
- June 3, 2024
- Hukseflux
Table of Contents
Hukseflux LR8432 Test Report Hioki
Hioki heat flow logger LR8432 used with Hukseflux heat
flux + temperature sensors
The Hioki heat flow logger is easy and convenient in use. It can measure up to
10 channels and display the data of heat flux, voltage and temperature
simultaneously. Our test shows that the latest FHF sensors have excellent
compatibility with Hioki LR8432 datalogger. FHF sensors are very versatile:
integrated temperature sensor, thermal spreaders to reduce thermal
conductivity dependence, applicable over a temperature range from –70 to +120
°C. The combined measurement of heat flux and temperature offers you a full
picture of the thermal behaviour of a system.
Introduction
Hukseflux offers a wide range of sensors for heat flux and temperature measurement. The thermopile heat flux sensor and thermocouple temperature sensor are both passive sensors; they do not require power.
Conclusion of testing
A total of 5 FHF sensors such as FHF04 can be connected directly to the Hioki LR8432. The heat flux in W/m2 is calculated by dividing the heat flux sensor’s output, a small voltage, by its sensitivity. The sensitivity is provided with the sensor on its certificate and can be programmed directly into the datalogger.
Specifications
Table 1 shows a summary of the most important specifications of the Hioki
LR8432 when used with Hukseflux FHF04. Contact Hukseflux for a final check of
your proposed solution.
Table 1 most important specifications of Hioki LR8432 used with a Hukseflux
FHF04 sensor
| LR8432
---|---
no. of input channels| 10
temperature| y
heat flux| y
voltage measurement
accuracy
| 0.1 x 10-6 V
estimated heat flux resolution
with FHF04
| 0.01 W/m²
temperature measurement
accuracy
| ± 0.8 °C
wireless / bluetooth| n
battery powered use| y
Getting started
The following text helps you to instal the sensors to the datalogger and getting along. For more information see the sensor manual on our website or the Hioki user brochure. Visit also the Hukseflux YouTube channel for a quick introduction to heat flux or learn more about separation of radiation and convection.
Before use
charge the internal battery pack for 2.5 hours continuous use or use the AC adapter.
-
Step 1
Suggested wire connection of FHF04:- Ch 1 +: red (heat flux +)
- Ch 1 -: black (heat flux -)
- Ch 2 +: thermocouple (type T +)
- Ch 2 -: thermocouple (type T -)
The channels 5 to 10 can be used for four (4) additional FHF sensors.
-
Step 2
Specify your measurement:- describe the purpose of the experiment;
- estimate the output range of heat flux sensor in [× 10-6 V] and program it into the logger;
- for Ch 1 choose as input ‘heat’ and enter sensitivity of heat flux sensor;
- for Ch 2 select as input ‘Tc’ and then Type T for temperature measurements;
- repeat previous steps in case more sensors are use
- Figure 3 avoid troublesome calculations by simply entering the sensitivity of the heat flux sensor in the logger
-
Step 3
Start your measurement:- press the start button;
- heat flow and temperature are displayed simultaneously on the same screen
- optimise using display settings
- Figure 4 heat flow and temperature can be display simultaneously in the same graph
-
Step 4
Store data:- USB flash drive
- USB connection to computer
- CF Card
Suggested use
Heat flux + temperature sensors and loggers are used to analyse the cause of temperature change. FHF04 is a sensor for general-purpose heat flux measurements, often applied as part of a larger test- or measuring system. Also, they are used to validate mathematical CFD simulations.
About Hukseflux
Hukseflux is the leading expert in measurement of energy transfer. We design and manufacture sensors and measuring systems that support the energy transition. Hukseflux is ISO 9001 certified. Hukseflux products and services are offered worldwide via our office in Delft, the Netherlands and local distributors.
Interested in this product?
E-mail us at: info@hukseflux.com
Copyright by Hukseflux. Version 2204. We reserve the right to change specifications without prior notice Page 2/3. For Hukseflux Thermal Sensors go to www.hukseflux.com or e-mail us: info@hukseflux.com
FHF series outperforms competing models: how?
FHF04 and FHF03 are Hukseflux’ standard models for thin, flexible and versatile heat flux sensors. With its small footprint, FHF03 is the most economical one.
©
Copyright by Hukseflux. Version 2204. Page 3/3. For Hukseflux Thermal Sensors
go to www.hukseflux.com or e-mail us:
info@hukseflux.com