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Address: Rm. 1203-1, Bldg. B, Xian Xinsilu International E-Commerce Industrial Park, No. 9, Gangwu Road, Int'l Port District
Contact name:Alice
Xi'an Yunyi Instrument Co., Ltd |
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The piston dead weight tester is a calibration standard machine that employs a piston cylinder, where a load is applied to create an equilibrium with the pressure exerted underneath the piston. Dead weight testers are known as primary standards, indicating that the pressure measured by them is defined through other quantities, such as length, mass, and time. Commonly, these testers are utilized in calibration laboratories for the calibration of pressure transfer standards, like electronic pressure measuring devices.
Specification dead weight tester pressure gauge calibration
| Item | YS6 | YS60 | YS250 | YS600 | ||||
| Range | MPa | 0.04-0.6 | 0.1-6 | 0.5-25 | 1-60 | |||
| Up limit of measurement | MPa | 0.6 | 6 | 25 | 60 | |||
| Down limit of measurement | MPa | 0.04 | 0.1 | 0.5 | 1 | |||
| Piston nominal area | cm² | 1 | 0.5 | 0.1 | 0.05 | |||
| Chassis and piston | Nominal mass kg | 0.4 | 0.5 | 0.5 | 0.5 | |||
| Generatedpressure MPa | 0.04 | 0.1 | 0.5 | 1 | ||||
| Special weight | Nominal mass kg | 0.1;0.5 | 0.5;2.5 | 0.5;2.5 | 0.5;2.5 | |||
| Generatedpressure MPa | 0.01;0.05 | 0.1;0.5 | 0.5;2.5 | 1;5 | ||||
| Number | 6;10 | 4;11 | 4;9 | 4;11 | ||||
| Both ends of the lock nut | M20×1.5 | M20×1.5 | M20×1.5 | M20×1.5 | ||||
| Weight | kg | 35 | 60 | 55 | 90 | |||
| Working liquid | 25#Transformer oil and aviation kerosene mixed (4.39:1).20 ℃
Kinematic viscosity 9 ~ 12 centistokes, The acid value of less than 0.05 mg KOH/ G | sebacate 20 ℃ kinematic viscosity 20-25 centistokes, acid value is not greater than 0.05 mg KOH/ G | ||||||
1. The piston and cylinder are made of high strength, high
stiffness, and low temperature coefficient of linear expansion of
the carbide grinding tungsten carbide material , with a wide range
of ambient temperature , stable performance 20 ± 5 ℃.
2. The load center of gravity low, weight by Cradle applied
directly to the piston, the piston smooth operation, the pressure
fluctuation is extremely small, accurate indication.
3. When pressure more than 25MPa ,the medium uses a small viscosity
isooctyl sebacate, thus ensuring a very high sensitivity.
4. The weights used are all non-magnetic stainless steel material.
5.The piston displacement sensor used to monitor the working
position, the piston up and down stroke of ±1.5mm, instrument
display is sensitive, smart, and accurate.
6. Wide range, at the lower 1MPa, the basic error of ± 0.02% or ±
0.05%, a KY100 type manometer, capable of reaching the upper limit
of the current domestic 6,60,100MPa three measuring manometer.
7. pressure regulator easy , even at 250MPa pressure could ease.
