Filledsystemthermometer
Precautions while using Laboratory Thermometers
Filledsystemthermometer
Thistypeofthermometerhasabourdontubeconnectedbyacapillarytubetoahollowbulb.Whenthesystemisdesignedforandfilledwithagas(usuallynitrogenorhelium)thepressureinthesystemsubstantiallyfollowsthegaslaw,andatemperatureindicationisobtainedfromthebourdontube.Thetemperaturepressuremotionrelationshipisnearlylinear.Atmosphericpressureeffectsareminimizedbyfillingthesystemtoahighpressure.Whenthesystemisdesignedforandfilledwithaliquid,thevolumechangeoftheliquidactuatesthebourdontube.
Thermometer Safety
Bimetallic stripthermometers
Manufacturers instructions
Liquid in glassthermometers
Clean the thermometer after each use
Filledsystemthermometer
Vaporpressurethermalsystem
Uses
Discard the plastic cover and put a new one on
Laboratory Thermometers
Alcohal thermometers
Mercury laboratory thermometers More ...
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