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SBG04 Heat Flux Sensor

Updated:2025-03-13

Brand: Hukseflux
Model：SBG04
Description: Water-cooled heat flux sensor – for cone calorimeters SBG04 is a water-cooled sensor that measures heat flux. SBG04 is mainly used as a calibration reference standard for testing with cone calorimete
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Product Details

SBG04 Heat Flux Sensor： User's Manual Datasheet

The sensor of choice for cone calorimeters

SBG04 measures heat flux in the range of (10 to 100) x 10³ W/m². Equipped with a black absorber, heat flux sensors of this type are designed for measurement in an environment in which heat flux is dominated by radiation. SBG04’s thermopile sensor generates an output voltage proportional to the incoming irradiance. The sensor is water-cooled. Water cooling is typically supplied by tap water connected to the stainless steel in and outlet tubes. These tubes stand at a 90° angle to the 0.5 inch diameter cylindrical sensor body axis, and parallel to the black sensor surface as required for testing with cone calorimeters.

Heat flux sensor with next level technology

SBG04 employs a novel sensor design, which combines the benefits of foil technology of the traditional Gardon gauges with those of the thermopile technology of traditional Schmidt-Boelter gauges.

Several advantages

cone calorimeter compatible

all specifications and dimensions standardised according to ISO 5660 and ASTM E1354

reduced diameter of 12.7 mm (0.5 inch)

reduced installation height

tubes at 90° angle to the axis of body

scratch resistant absorber coating (reduced absorber height)

safe storage with a practical protection cap.

Mounting

To position SBG04 according to the standard practise of ISO 5660 and ASTM E1354 a “flux meter mount” shall be used. The recommended dimensions for the slot in the mount for SBG04 are provided in figure 4 (see the brochure that can be downloaded on this page). Contact your cone calorimeter equipment supplier for an suitable mount or modification.

Suggested Use

SBG04 is the sensor of choice as calibration reference standard for cone calorimeter test equipment, in accordance to ISO 5660 and ASTM E1354 reaction-to-fire tests. It is also used in flammability, fire resistance and smoke chamber tests.See also:

SBG01 water-cooled heat flux sensor with a 1 inch body for measurements< 200 x 10³ W/m².

GG01 Gardon gauge water-cooled high heat flux sensor for measurements > 250 x 10³ W/m².

HFS01 is a high intensity heat flux sensor intended for concentrated solar and flammability testing.

SBG04 Heat Flux Sensor Specifications：

Measurand	Irradiance in W/m² (in SI units), heat flux
SBG04 specifications	:
Sensor technology	both Gardon and Schmidt-Boelter
Standardization	all specifications and dimensions standardized for use in cone calorimeters according to ISO 5660 and ASTM E1354
Rated measurement range	100 x 10³ W/m²
Limiting measurement range	150 x 10³ W/m²
Response time (63 %)	< 250 x 10⁻³ s
Output signal	DC voltage
Output signal range	> 12 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	> 0.95
Calibration traceability	to ITS-90
Rated cooling water temperature range	10 to 30 °C
Rated cooling water flow	> 10 l/h (0.003 l/s), preferably 30 l/h (0.01 l/s)
Calibration laboratory management system certification	ISO 9001
Accreditation	not accredited
Calibration method	SBGC secondary calibration method according to ISO 14934-3
Standard cable length	2 m
Order code standard version	SBG04-100-02