HFS Heat Flux Sensor Instruction Manual
Introduction
Heat flux sensors can be used to measure and quantify the thermal energy per unit area
moving through a surface of a system and can measure heat transfer in HVAC systems,
insulation analysis, refrigeration systems as well as countless other thermal applications.
Heat Flux Sensor Description
The HFS-5, HFS-6, & UHFS-09 heat flux sensors utilize a differential-temperature
thermopile design to measure the movement of thermal energy per unit area, or heat flux,
through the sensor surface. Each HFS sensor includes an integrated type-T thermocouple
that can be used for sensor temperature measurements. The sensitivity of each sensor
is provided with each unit recorded on their respective calibration certificate. Sensor
calibration procedures adhere to ASTM standard C1130 and are described later in this
manual.
Instruction Manual Contents
1
How to Use a Heat Flux Sensor
Brief Overview of Using the Heat Flux Sensor
3
Sensor Signal Measurements
3
Measuring Heat Flux Voltage
3
Measuring Thermocouple Voltage
4
Checking the Functionality of HFS Sensor &
Troubleshooting
4
Sensor Mounting/Installation
6
Removing Sensor from Measurement Surfaces
6
2
Converting Measurements to Heat Flux and Temperature
Type T thermocouple temperature measurement
6
Temperature Dependence of HFS Heat Flux Sensor
6
Calculating Heat Flux
7
Heat Flux Sensor Sensitivity Determination
8
HFS
-
5
HFS
-
6
UHFS
-
09
