Barometer

FITZER Barometer to measure atmospheric pressure which is oftenRequired in laboratory experiments and for more accurate measurementOf the barometric height. This sealed tube mercury column barometerIncludes standard Range 580 To 800 mm of Hg with MIN. Divn. 1mm orInches scale with vernier providing readability to 0. 01 inches. The FITZER Barometer is sturdily construction for continuous, reliableAnd accurate service in the instrument laboratory of in industrialProcess plant. Special designing features permit shipping the instrumentCompletely filled with mercury, ready for preliminary preparation. The accuracy of a Barometer depends on the condition of evacuation inThe void space in the sealed tube. For the ultimate accuracy, theInstrument is evacuated and filled with Fitzer Instrument MercuryUnder Controlled conditions assuring complete removal of all entrainedAir prior to filling with mercury. If the perfect seal of a barometer is lost, The gauge must again be completely evacuated and a new fillingOf mercury added.