FOX 200 Heat Flow Meter

The FOX 200 Heat Flow Meter from TA Instruments is an easy-to-use, accurate instrument for measuring thermal conductivity in compliance with ISO 8301 and ASTM C518. It can be run as a standalone unit or with PC-controlled configurations.

The FOX Heat Flow Meter provides fast, accurate results and features proprietary thin film heat flux transducers, responsive temperature control and digital thickness measurements. The FOX 200 is a versatile instrument and is particularly well-matched for measuring slices of cellular plastics.

  • Easy-to-use, rapid results
  • Conforms to ISO 8301 and ASTM C518
  • PC-based or standalone operation
  • Solid state cooling/heating
  • Two Thin-Film Heat Flux Transducers
  • Thickness measurement to 0.025 mm
  • WinTherm software extends flexibility
  • Suitable for R&D and QC testing
  • Available Autosampler for unattended high-throughput productivity


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Maximum Sample Thickness 51 mm (2")
Sample Size 204 x 204 mm (8 sq. in.)
Temperature Range -20 °C to 75 °C (Fox 200)
0 °C to 160 °C (FOX 200HT 160C)
-175 °C to 50 °C (FOX 200LT)
Temperature Resolution ±0.01 °C
Accuracy ±1% (Fox 200)
±2% (Fox 200HT 160C, FOX 200LT)
Reproducibility ±0.5%
Thermal Conductivity Range 0.005 to 0.35 W/m K
(0.035 to 2.4 BTU in/hr ft2 °F)
With FOX 200 External Thermocouple Kit:
0.001 to 2.5 W/m K
(0.007 to 17.3 BTU in/hr ft2 °F)
Proprietary Thin Film
Heat Flux Transducer
75 mm x 75 mm (3 in)
Top and bottom


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