High static pressure gas differential pressure piston pressure gauge
High static pressure gas differential pressure piston pressure gauge (GCY7, GCY20)
Model: GCY7, GCY20
Measuring range: 0.1-7MPa, 0.2-7MPa, 0.5-20MPa
1. When the two pressure gauges are used alone: ±0.01%
2. When the whole machine is checking the differential pressure transmitter under high static pressure, it is ±(2Pa+5x10-7xP+1x10-4x△P)
Where: P-static pressure Pa, △P-differential pressure Pa
Working medium: air (with oil and gas isolator, piston system medium is transformer oil, the working medium of the instrument to be inspected is air)
1. It can be used for quantity transfer and high precision measurement;
2. Can be used to verify digital pressure gauges, pressure sensors, pressure transmitters and other precision pressure instruments and meters.
The whole machine consists of two wide-range piston pressure gauges that can be used separately. It can verify the differential pressure transmitter under high static pressure.
● The working position of the piston is displayed by the displacement sensor through the meter, which is sensitive and accurate.
● Piston and piston tube materials are made of high-quality alloy tungsten carbide, with small deformation error, small temperature error, wear resistance and long service life.
The certificate of China Institute of Metrology or Shanghai Metrology and Testing Institute is attached to the factory.