Pneumatic Dead Weight Tester

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Product Overview


Product Description


                                  Pneumatic Dead Weight Tester



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 an 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 10MPa
2. pressure reference for factory and calibration lab for the testing, adjustment and calibration of pressure measuring instruments.

Pressure range:   (-0.1~0.6)MPa, (0.04~0.6)MPa; (0.1~2.5)MPa; (0.1~6)MPa;  (0.1~7)MPa, (0.1~10)MPa

Accuracy:   0.005%F.S.;   0.01%F.S.;   0.02%F.S.;    0.05% F.S.


piston system: tungsten carbide
Weight: Non-magnetic stainless steel (level 0.005, 0.01, 0.02);
Carbon steel (level 0.05)
Base: stainless steel

Working medium:
Pure Nitrogen

Special features            

1. High sensitivity: up to 10mg;

2. Easy Negative and Positive pressure switch;

3. It can be used as calibration instrument, also can be pressure pump alone.


Delivery Scope            


  1. Measuring base

  2. Weights

  3. Measuring system

  4. “O” Ring

  5. Hand Wheel

  6. Operation manual &CD

  7. Certificate of approval

  8. Calibration record

  9. Power adapter  




Warranty: 1 years           

Company Information

Shaanxi Creat Wit Technology Co., Ltd. (CW) is high-tech enterprise in Shaanxi province, China, founded in July, 2006.

It is mainly engaged in developing, manufacturing and selling the thermal industries calibration equipment, such as dead weight tester, temperature measurement and other calibration instruments.


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0.0115 s.