deadweight tester (DWT) is a calibration standard which uses a piston cylinder
on which a load is placed to make an equilibrium with an applied
pressure underneath the piston. Deadweight testers are so called primary standards which means that the pressure measured by a
deadweight tester is defined through other quantities; length, mass
and time. Typically deadweight testers are used in calibration laboratories
to calibrate pressure transfer standards like electronic pressure
measuring devices.
Purpose:
In 1980,Model : YS-6; YS-60; YS-600
Dead Weight Tester Pressure Tester were awarded the state
silver medal. And in 1987, after re-examination , we still hold the
state silver medal.
These testers are used in laboratory
and measuring department for calibrating the precision pressure
gauges or standard pressure gauges.
Specifications
Accuracy: 0.05% ; 0.02%, 0.015% , 0.01%
To order, specify the name ; model and accuracy.
Data | Unit | Pressure | 0.6MPa | 6MPa | 60MPa | Upper limit | MPa | 0.6 | 6 | 60 | Downlimit | MPa | 0,04 | 0.1 | 1 | Piston Nominal Area | CM2 | 1 | 0.5 | 0.1 | Carrier and Piston | Nomina1 Maas | kg | 0.4 | 0.5 | 1 | Pressure Developed | MPa | 0.04 | 0.1 | 1 | Weights | Nominal Mass | Kg | 0,1; 0.5 | 0.5; 2.5 | 1;5 | Pressure Developed | MPa | 0.01; 0.05 | 0.1; 0.5 | 1;5 | Quantity | pcs | 6; 10 | 4; 11 | 4;11 | Locking Nut | | M20x1.5 | M20x1.5 | M20xl.5 | Weight | Kg | 20 | 26 | 26 | Working Fluid | | The Kine matic Viscosity of transformer oil and kerosene is 9 to 12
centistokes at 2O℃ | The acidity of sebacic acid ester is not higher than 0.05mg kOH/g |
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XIYI Group Co., Ltd ( Xi'an Instrument Factory)
Precision pressure gauge, stainless steel pressure gauge, pressure
pump, seismic pressure gauge, piston manometer, floating ball type
pressure gauge, hand pressure pump,
Electric contact pressure gauges, diaphragm pressure gauges,
digital pressure gauge, vacuum gauge, vacuum pressure pump,
