Vacuum dead weight tester
0.05% precision grade piston pressure gauge (hereinafter referred to as the pressure gauge) is used to check (check) 0.2% precision grade piston pressure gauge and precise pressure gauge.
2.Working principle and basic structure
The working principle of pressure gauge is based on the piston itself weight, and add the dedicated weights on piston weight, the pressure produced on the piston area and the hydraulic pressure balance status of the container.
piston pressure gauge composed of the two part test pump and measuring system. See figure.
1. Weights 2.Instructions Plate 3.Pedestal 4.Adjusting Screw
5.Connecting pipe 6.7.8.valve 9.Oil Cup 10.level Instrument
11.Hand Pump 12. Handwheel 13.Measurement System
Check the pump consists of a hand pump¢Ï¡¢Oil cup¢ÍAnd the two valve¢Ê¢Ë¡£On the valve  and  equipped with a lock on both ends£¬To the test of connection is precision pressure gauge.The measurement system mainly consists of a piston through precision grinding with precise section£¬The piston directly under the weight weight of the chassis.