Bimetallic thermometer
Precautions while using Laboratory Thermometers
Bimetallic thermometer
Inthisthermometerthedifferentialexpansionofthindissimilarmetals,bondedtogetherintoanarrowstripandcoiledintotheshapeofahelixorspiral,isusedtoactuateapointer.Insomedesignsthepointerisreplacedwithlowvoltagecontactstocontrol,throughrelays,operationswhichdependupontemperature,suchasfurnacecontrols.
Points to kept in Mind while using a thermometer
Pull the ear canal open by gently pulling the ear lobe back and up
Turn the thermometer on and make sure the reading is at zero
Selection Criteria for Laboratory Thermometers
Turn the thermometer on and make sure the screen reads zero
Clean the thermometer after each use
Take a temperature with a digital thermometer
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