Water-cooled heat flux sensor SBG04

calibration

Overview
SBG04 measures heat flux in the range of (10 to 100) x 103 W/m2. Equipped with a black absorber and water-cooled, the sensor is designed to measure heat flux from strong radiative sources. SBG04’s thermopile sensor generates an output voltage proportional to the incoming heat flux. The sensor is cooled, usually via tap water flowing through the stainless steel inlet 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.

Key features

• Cone calorimeter compatible: All specifications and dimensions are standardized according to ISO 5660 and ASTM E1354 reaction-to-fire tests.
• Next-level technology: Features a novel sensor design that combines the benefits of the technology of traditional Gardon gauges and the more recent thermopile technology of Schmidt-Boelter gauges.
• Tailored geometry: Designed with a small diameter of 12.7 mm (0.5 in) and stainless steel water cooling tubes at a 90° angle to the axis of the cylindrical sensor body.
• Standardized practices compliance: Calibration and use are subject to standardized practices according to ISO 14934 (Reaction-to-Fire tests — Calibration and use of heat flux meters) and described in ISO 5660.
• Effective water cooling: Cooled via tap water flowing through the inlet and outlet tubes, which keeps the sensor body protected during testing.
• Robust construction: Equipped with a scratch-resistant absorber coating with a slightly lowered surface.
• Safe transport and storage: Delivered with a practical protection cap for safe storage and transport.
• Traceable calibration: Supplied with a calibration traceable to a secondary reference standard calibrated by comparison to the primary standard of the RISE Research Institutes of Sweden AB, factory calibrated according to ISO 14934-3.

Applications

• Calibration reference standard for cone calorimeter test equipment, in accordance with ISO 5660 and ASTM E1354 reaction-to-fire tests.
• Flammability and smoke chamber testing.
• Fire resistance testing.
• Calibration and routine verification of local working standards under an irradiance source.

Specifications

• Measurand: Heat flux
• Measurand in SI units: Irradiance in W/m²
• 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
• Measurement range capability: (10 to 100) x 10³ W/m²
• Limiting measurement range: 150 x 10³ W/m²
• Output signal: DC voltage
• Output signal range: > 12 x 10⁻³ V at rated measurement range
• Response time (63 %): < 250 x 10⁻³ s
• Full field of view angle: 180°
• Spectral range: 0 to 50 x 10⁻⁶ m
• Black coating emissivity: > 0.90
• Sensor body diameter: 12.7 mm (0.5 in)
• Water cooling tubes outer diameter: 3.2 x 10⁻³ m
• 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 traceability: To ITS-90
• Calibration method: SBGC secondary calibration method according to ISO 14934-3
• Order code standard version: SBG04-100-02

Cable and mounting options

• Standard cable length: 2 m
• Flux meter mount slot: Recommended mounting dimensions according to ISO 5660 and ASTM E1354 standard practice
• Tube support ring: Integrated positioning stop for cone calorimeter mounting