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Bains d'étalonnage
Les bains de Fluke Calibration offrent des environnements de température optimaux pour les étalonnages de température secondaires ou de comparaison. Ils offrent une stabilité et une uniformité inégalées, un grand volume de travail et de la flexibilité pour effectuer un étalonnage thermométrique lors de l'étalonnage d'une multitude de capteurs de température. Un contrôleur de température de classe mondiale et plus de 30 années d'expérience en font le choix des instituts nationaux de métrologie et des laboratoires d'étalonnage dans le monde entier. Les bains de température de Fluke Calibration peuvent être compacts, à puits profond, chauds, froids, à résistance et personnalisées.
What is a temperature calibration bath
A temperature calibration bath is a calibrator having a uniform fluid enclosure that can be adjusted to specific temperatures for test points. They offer large volume and flexibility for calibrating temperature sensors that are different shapes and sizes.
Calibration bath cutaway
Various names of a calibration bath
People refer to a calibration bath in many ways including:
- Temperature bath calibrator
- Thermocouple calibration bath
- Thermometer calibration bath
- Liquid calibration bath
How does a calibration bath work
Using a stirred fluid, like water, silicone oil, ethanol, or methanol, calibration baths provide excellent thermal contact in a stable and uniform temperature for sensor calibration. Fluke Calibration baths work by using a unique tank design to guarantee precise temperature to calibrate multiple probes at the same time.
Temperature bath calibration procedure
Comparison calibration involves testing a probe (unit under test, UUT) against a reference probe. In preparing to use the bath for calibration:
- Place the reference probe in the bath working area.
- Place the probe to be calibrated (the UUT) in the bath working area as close as possible to the reference probe but not touching the bath tank surface areas.
- When calibrating over a wide temperature range, start at the highest temperature and progress down to the lowest temperature generally achieves better results.
Note: After inserting the probes to be calibrated into the bath, allow sufficient time for the probes to settle and the temperature of the bath to stabilize.
Note: Probes should be inserted to the same depth in the bath liquid. Be sure that all probes are inserted deep enough to prevent stem effect. From research at Fluke Calibration, we suggest a general rule-of-thumb for immersion depth to reduce the stem effect to a minimum: 20 x the diameter of the UUT + the sensor length.
Note: Do not submerge the probe handles.
Calibration bath decision guides
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