Instrument Features




1. High sensitivity transducers

A revolutionary high output Thin Film Heat Flux Transducer is permanently bonded to each plate. A type E thermocouple is bonded in the center of each transducer and both are sealed to insure consistent precision over time. Because each is within 0.1mm (0.005") of the sample's surface they provide accurate readings of the sample's surface temperature and heat flux.

2. Advanced electronics

A 24 bit analog to digital converter and a digital signal processor provide 0.6µV resolution yielding temperature control and resolution of 0.01°C.

3. Accurate thickness measurement

A sophisticated digital plate position control system with readout in all four corners of the specimen provide +/-0.025mm (0.001") accuracy in thickness measurement.

4. Precise results

Extensive testing at various locations including Oak Ridge National Laboratories has shown that FOX Instruments have a repeatability of 0.2%, a reproducibility of 0.5%, and when the high accuracy calibration mode is used an absolute accuracy of better than 1%.

5. Speed

Thanks to the powerful data acquisition system, the unique low thermal mass design of the solid state cooling/heating plates and the sophisticated multistage PID algorithm typical testing temperatures can be reached and controlled to 0.01°C in a few minutes. The dual transducers and advanced electronics provide results for 1" thick specimens accurate to within 1% of final steady state results in less than 10 minutes.

6. Calibration

The instrument can be provided with calibrations based on NIST 1450b Standard Reference Material, IRMM-440 Certified Reference Material, special high accuracy NIST Traceable standard (accurate to +/-0.5%) or the NPL traceable standard.

7. WinTherm Software

Increased flexibility is made available through the software used under Windows. Through a series of windows all the test parameters can be setup and changed at any time during the test, with the ability to review data from previous and or current tests in a variety of formats including graphs. It also provides extensive automatic data storage on the hard disk and the ability to run up to 8 instruments simultaneously on one host computer.

8. Size and weight

Our instruments are a fraction of the size and weight of prior thermal conductivity instruments and their modular design simplifies their very rare need for service.

9. Automatic Sample Feeder

is available on FOX200s, FOX300s and FOX314s with the ability to automatically load and test 21 1" samples. Each sample's results and data are stored on the computer. Also available for the FOX600 capable of loading up to 17 samples.

10. Prices

The Instruments are extremly cost effective. For more information contact: Kevin Collins, Sales and Marketing Manager or one of our dealers.

11. Flexibility

Temperatures of each plate can be set at between -20°C to 95°C without restriction on temperature difference.




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