Dead Weight Tester

Product Details

Dead Weight Testers from famous German Brand LRCAL, now available in India. Available in accuracy upto 0.006% of rdg, ranges upto 5000 bar and Vacuum upto -1 bar. Also available in differential models.LR-Cal LDW-HKhydraulic, compact design, operated with oilRanges from 1...120 bar to 10...1,200 barresp. from 10...1,600 psi to 100...16,000 psiAccuracy ±0.025% of measured valueor ±0.05% of measured valueLR-Cal LDW-Hhydraulisch, several operating fluids,Ranges from 1...120 bar to 1...1,400 barresp. from 10...1,600 psi to 10...20,000 psiAccuracy up to ±0.006% of measured valueor up to ±0.015% of measured valueLR-Cal LDW-Ppneumatic,air operatedRanges from 0.03...2 bar to 0.4...100 barresp. from 0.435...30 psi to 5.8...1,500 psiVaccum -0.03...-1 bar / -0.435...-14 psiAccuracy ±0,008% of measured valueor ±0.015% of measured valueLR-CalCPB5000-HPHigh-Pressure, hydraulic, oil operatedRanges from 25...2,500 bar to 25...5,000 barresp. from 350...40,000 psi to 350...70,000 psiAccuracy ±0.020% of measured valueor ±0.025% of measured valueDual piston range 1...2,600 bar up to ±0.007% of m.v.LR-CalCPB5600-DPDifferential Pressure, hydraulic and pneumaticRanges (= static pressure + differential pressure):Pneumatic: 2 bar to 100 barresp. 30 psi to 1,500 psiHydraulic: 60 bar to 1,000 barresp. 1,000 psi to 14,500 psiAccuracy ±0.008% of measured valueor ±0.015% of measured valueThe direct measurement of the pressure (p = F/A), as well as the use of high-quality materials enable this small measurement uncertainty, in conjunction with an excellent long-term stability (recommended cycle of 5 years in accordance with the German Calibration Service DKD/DAkkS).Through the selection of a dual-range piston-cylinder system (hydraulic model LR-CalLDW-H only) with automatic measuring range switching, this measurement uncertainty can be ensured, even with a single measuring system, over a large pressure range. Operating principle Mass pieces placed on the top of a piston-cylinder system are the source of a precisely defined force. By producing a certain pressure (counter pressure) inside the deadweight tester / pressure balance by using e.g. the integrated hand pump, an equilibrium is achieved. In the state of equilibrium the pressure is high enouph, that the mass pieces, incl. the free-running piston of the piston-cylinder system, are floating, which will lead to a very accurate pressure at the test port.The resource needed in this case is a pressure supply, but only for pneumatic applications >10 bar or a vacuum source for negative pressure versions.Benefit: Large measuring range coverage is possible, long recalibration intervals and stand-alone operation.