4. Define the verification method. Part 1: Sensor location
4.1 Standard method
French and European documents are in perfect agreement on sensor location. In temperature :
9 sensors for an enclosure volume ≤ 2 m 3 , 15 sensors beyond that; 1 sensor in the center, the others distributed around the periphery of the useful volume ( cf. figure "Distribution for a volume ≤ 2 m 3 ", taken from FD X15-140) for an empty volume.
The central sensor is moved to a minimum distance from the specimen for a loaded volume, and the European standard even envisages the possibility of removing it.
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Define the verification method. Part 1: Sensor location
Define the verification method. Second part: detection of steady state
Bibliography
FD X15-140: 2013 Air humidity measurement – Climatic and thermostatic chambers – Characterization and verification
NF EN 60068-3-5 : 2002 Environmental testing part 3-5 : Accompanying documentation and guide – Confirmation of the performance of temperature test chambers
NF EN 60068-3-6 : 2002 Environmental testing part 3-6 : Accompanying...
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