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HFS01 Water-cooled Sensor

Updated:2023-01-29

Brand: Hukseflux
Model: HFS01
Description: HFS01 is a water-cooled sensor that measures high-level radiative and convective heat fluxes. It is designed for studies of concentrated solar irradiance (800 x concentrated direct solar radiation) an
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Product Details

Overview of HFS01 Water-cooled Sensor：

User Manual Instructions

HFS01 measures heat flux in the range of (0 to 800) x 10³ W/m²; the extremely high fluxes as generated by flames and solar concentrators.

Equipped with a black absorber, the instrument is designed for measurement in an environment in which heat flux includes radiation as well as convection. HFS01’s thermopile sensor generates an output voltage proportional to the total absorbed heat flux. The sensor must be water-cooled. Water cooling is usually supplied by tap water. A removable flange that can be used for mounting is supplied with the sensor. Also, a type K thermocouple is included, to measure the sensor body temperature.

The part of the cabling closest to the sensor is a special high-temperature metal sheathed cable with an interlocked spiral stainless steel armour. The high-temperature cable and armour withstand temperatures up to 900 °C. Because the sensor body is water cooled, it will remain relatively cool. The surface temperature of the sensor may reach 650 ˚C. The low-temperature extension cable has a jacket of PTFE type plastic.

The HFS01 sensor can also be ordered without black coating, so that HFS01’s absorption of radiation is reduced, while it remains sensitive to convective radiation. Users may also coat HFS01 with their own coating, to create a different response to radiation.

HFS01 Water-cooled Sensor unique features and benefits：

1、Very robust all-metal / ceramics instrument body and sensor

2、High-temperature signal cable

3、Signal wires electrically insulated from the sensor body and from cooling waterhfluxman HFS01 02 solar concentrator fluxes webXLsquarev1901Using HFS01 is easy. It can be connected directly to commonly used data logging systems. The heat flux, in W/m², is calculated by dividing the HFS01 output, a small voltage, by the sensitivity. The sensitivity is provided with HFS01 on its product certificate. Equipped with heavy-duty cabling and a fully stainless steel casing which prevents moisture from penetrating the sensor, HFS01 has proven to be very reliable.

Recommended uses of the HFS01 Water-cooled Sensor：

1、Solar concentrator

2、Flame research

3、Fluidised beds

HFS01 Water-cooled Sensor application field：

1、Building physics / insulation, thermal comfort and energy budget measurement

2、Industrial monitoring and control / heat flux and heat transfer measurement

3、Scientific research / heat and heat transfer measurement

HFS01 Water-cooled Sensor specifications：

Measurand	heat flux, temperature
Measurement range	0 to 800 x 10³ W/m²
Measurand in SI units	heat flux density /irradiance in W/m²
Heat flux sensor	thermopile
Temperature sensor	thermocouple type K
Sensitivity (nominal)	9 x 10⁻⁹ V/(W/m²)
Calibration traceability	to SI units
Rated operating temperature ranges	:
sensor and black coating	-30 to +650 °C
IP protection class	IP67
Standard cable lengths	:
high-temperature cable	1 m (see options)
low-temperature extension cable	3 m (see options)
Rated cooling water temperature range	10 to 30 °C
Rated cooling water flow	> 30 l/h (0.01 l/s), preferably 100 l/h (0.03 l/s)
Output signal	DC voltage
Output signal range	10 x 10⁻³ V at rated measurement range
Spectral range	0 to 50 x 10⁻⁶ m
Full field of view angle	180°
Black coating emissivity	0.92 (estimate)
Order code	HFS01 – high-temperature cable length in m – low-temperature extension cable length in m
Options	・Longer cable (specify total cable length for both cable types in m) ・Connector at HFS01 cable end ・Low-temperature extension cable with 2 connectors, matching cable connector and chassis connector ・Chassis connector with internal wiring (colour code of wiring identical to cable colour code) ・Blank metal sensor surface, no coating