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Deadweight tester - FRS4, FRS5 series
The Furness Rosenberg primary standards with unique design occupies crucial place in national standards laboratories worldwide. The pressure standard, based on a piston and balance principal permits to accurate control ultra low pressure calibration. The unique primary pressure and vacuum standard offers 0.001 Pa to 40 kPa (FRS4) range of pressure calibration. The FRS5 draws vacuum from 1 x 10-3 Pa, offers vacuum calibration from 0-1 kPa upwards.