Dead Weight Testers

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Dead Weight Tester-CV series

     Pressure range: up to 600bar
     Accuracy: 0.05% 0.02%
     Piston system: tungsten carbide 
     Weight masses: carbon steel (for 0.05%)
                                 Non-magnetic stainless steel (for 0.02%)

Working Principle    
Mechanical dead-weight testers or primary standards are the most accurate reference instruments for pressure. Their functional principle is based on the physical principle of pressure = force/area. Mass pieces placed on the top of a piston-cylinder system are the source of a precisely defined force. By producing a certain (counter) pressure inside the pressure balance equilibrium is achieved: the mass pieces, including the free-running piston of the piston-cylinder system, are floating, which will lead to a very accurate pressure at the test port.
1. Primary standard for defining the pressure scale in a range of up to 60MPa.
2. Pressure reference for factory and calibration lab for the testing, adjustment and calibration of pressure measuring instruments.
Model (optional):               CV-6T        CV-60T     CV-250T      CV-600T      
Measuring range (MPa):  (0.04-0.6)     (0.1-6)        (0.5-25)         (1-60)(P.S.10~600bar)       or user defined

Accuracy: 0.02%; 0.05% of Readings

  • Piston system (the rod and cylinder): tungsten carbide
  • Weight (Masses): Non-magnetic stainless steel (0.02); 
  • Carbon steel (0.05)
  • Base: stainless steel
  • Working medium:
  • <25 MPa : Mixed oil (transformer oil and kerosene oil)
  • ≥25 MPa : sebacate oil
  • Gravity: user’s local gravity

  • Able to test two gauges synchronously; Applied the fast pressure plug; no oil leakage;
  • The piston rod is anti-breakage structure.
  • PCU is made of Tungsten carbide make the accuracy improved a lot.
 Operating manual for deadweight tester-CV series

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Telephone: +86-29-89250364
Fax: +86-29-89250364
Company: Shaanxi Creat Wit Technology Co.,Ltd
Address: No.80 Gaoxin Road,Hi-Tech Zone,Xian,Shaanxi,China
Zip/Post Code: 710065
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