Specifications
SBG04
| Measurand | heat flux |
| Measurement range | 100 x 10³ W/m² |
| Measurand (in SI units) | irradiance in W/m² |
| Sensor technology | both Gardon and Schmidt-Boelter |
| Standardisation | all specifications and dimensions standardised 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 | > 0.90 |
| 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 |
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
- cone calorimeter compatible
- all specifications and dimensions standardised according to ISO 5660 and ASTM E1354
- reduced diameter of 12.7 mm (0.5 inch)
