LR-Cal Deadweight Tester / Pressure Balances

Primary standard for pressure
Rigid basements with integrated manual pressure source
Excellent repeatability
Uncertainties mathematical calculable
Mechanical/physical basic principle
Pneumatic models (with ambient air or nitrogen)
Hydraulic models (up to 5,000 bar)
Differential pressure model with real static pressure

Model overview

LR-Cal LDW-HK

Hydraulic, compact design
Ranges from 1...120 bar to 10...1,200 bar
and from 10...1,600 psi to 100...16,000 psi
Accuracy ±0.025% of measured value
or ±0.05% of measured value

LR-Cal LDW-H

Hydraulic, several operating fluids
Ranges from 1...120 bar to 1...1,400 bar
and from 10...1,600 psi to 10...20,000 psi
Accuracy ±0.006% of measured value
or ±0.015% of measured value

LR-Cal LDW-P

Pneumatic also with Vacuum option
Ranges from 0.03...2 bar to 0.4...100 bar
and 0.435...30 psi to 5.8...1.500 psi
Vacuum -0.03...-1 bar / -0.435...-14 psi
Accuracy ±0.008% of measured value
or ±0.015% of measured value

LR-Cal LDW-CPB5000-HP

Hydraulic, high pressure
Ranges from 25...2,500 bar to 25...5,000 bar
and from 350...40,000 psi to 350...70,000 psi
Accuracy ±0.020% of measured value
or ±0.025% of measured value

LR-Cal CPB5600-DP

Differential presure with real static pressure
Ranges (= static pressure + differential pressure):
Pneumatic: 2 bar to 100 bar / 30 psi to 1,500 psi
Hydraulic: 60 bar to 1,000 bar / 1,000 psi to 14,500 psi
Accuracy ±0.008% of measured value
or ±0.015% of measured value