Heat flux sensor HF05

Overview
HF05 is an industrial heat flux sensor that measures heat flux and surface temperature in industrial environments. The sensor has a fully sealed stainless-steel body and a PTFE cable, allowing it to withstand relatively extreme environmental conditions. It measures heat flux through the object on which it is mounted, in W/m², as well as its surface temperature in °C using a passive thermopile and an integrated Type K thermocouple. Typical applications include studies of fouling in industrial environments on tubing or reactor jackets, as well as performance evaluation of industrial insulation. HF05 complies with ASTM C1041-85 (2007) and connects directly to commonly used data logging systems.

Key features
• Robust stainless-steel housing: Sensors inside are protected by a fully sealed stainless-steel body and a short rigid stainless-steel tube transition to survive harsh industrial conditions.
• Dual parameter measurement: Measures both local heat flux (via a thermopile) and surface temperature (via an integrated Type K thermocouple).
• Passive operation: Both the thermopile and thermocouple sensors are passive and require no external power.
• Extreme condition endurance: Equipped with a durable PTFE cable and rated IP67, preventing moisture ingress in industrial installations.
• Standardized compliance: Complies with ASTM C1041-85 (2007) Standard Practice for In-Situ Measurements of Heat Flux in Industrial Thermal Insulation Using Heat Flux Transducers.
• Traceable calibration: Factory calibration follows the recommended practice of ASTM C1130 and is traceable to SI units.
• Easy mechanical mounting: Features two integrated mounting flanges attached to the sensor body for secure mounting with spring-loaded bolts and tack-welded threads.

Applications
• Industrial heat flux measurements.
• Performance evaluation of industrial insulation.
• Studies of fouling in industrial environments mounted on tubing or reactor jackets.
• In-situ monitoring of boiler walls and industrial equipment surfaces.

Specifications
• Measurand: Heat flux [W/m²]
• Measurand: Temperature [°C]
• Heat flux sensor technology: Thermopile
• Temperature sensor: Thermocouple Type K
• Measurement range: -6000 to 6000 W/m²
• Sensitivity (nominal): 15 x 10⁻⁶ V/(W/m²)
• Uncertainty of heat flux calibration: ± 10 % (k = 2)
• Calibration traceability: To SI units (ASTM C1130 practice)
• Rated operating temperature range: -30 to +170 °C
• IP protection class: IP67
• Recommended number of sensors: 2 per measurement location
• Standard cable length: 3 m (PTFE cable)
• Order code standard configuration: HF05/cable length in m

Options and accessories
• Cable length options: Longer cable (specify total cable length in m)
• Certification: EC type examination certificate (ATEX) II 2G Ex db IIC T6
• Connector options:
• Connector at HF05 cable end
• Extension cable with 2 connectors matching cable connector and chassis connector (specify cable length in m)
• Chassis connector with internal wiring (color code of wiring identical to cable color code)
• Mounting interface: Two mounting flanges attached to the sensor body