Applications:
1. Primary standard for defining the pressure scale in a range of up to 250MPa
2. Pressure reference for factory and calibration lab for the testing, adjustment and calibration of pressure measuring instruments.
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.
Features:
Weights can be driven to 250MPa with engine at once.
Dirty medium oil can be drained out from sewage outlet when it gets dirty.
The piston rod is anti-breakage structure and adopts spacing ring structure to reduce friction, so it is strong and rotates steadily.
The gauge adopts military grade sealed structure to completely avoid oil leakage.
The base is stainless steel material and is assembled 3.5” TFT LCD display which can display piston working location, temperature and humidity, etc.
Specifications:
Model：CW-2500T
Measuring range:（5~250）MPa
Accuracy: 0.005%F.S, 0.01%F.S, 0.02%F.S 0.05%F.S
Medium: Sebacate oil
Material: Piston rod, cylinder: tungsten carbide.
Weight set: According to the user's requirement, the configuration of the kg group or MPa group can be customized and the pressure deformation coefficient will be adjusted.
Weight adjustment：Masses can be adjusted to specific location gravity.
Material: non-magnetic stainless steel （0.005; 0.01; 0.02）; carbon steel（0.05）
Pressure test method: gauge pressure
Pressure output: M20×1.5 or NPT standard quick connector
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China [CN] 
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