Xi'an Automation Instrument No.1 Factory |
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YS series Piston-type Pressure instrument
◎Application description
YS series Piston-type Pressure instrument is designed and developed
by our manufacturer
according to state’s latest calibration regulations of piston-type
manometer and JJG59-2007
requirements. It is a standard instrument of high accuracy, high
reproduction and high reliability. It is
designed based on Pascal law and balance theory of hydrostatics. It
is mainly used in measurement
room, laboratory or applied as standard instrument during
production or scientific experiment. It
also can be used for detection of other instruments during
detection procedure demanding high
reliability
◎Function and features
1, Through elaborate polishment, piston and piston rod are all made
of scleroid alloy of tungsten
carbide material which is of high endurance, high hardness,
coefficient of linear expansion in low
temperature. Its features are low expansion factor, little
deformation, so the rate of change of
piston efficient area is low and it is stable and well adaptive to
various environment.
2, Because of new material, new technology, new processing, the new
piston-type manometer gets
improved in many aspects of technical index. Thus, it is widely
used for calibrating digital pressure manometers, accurate pressure
manometers, pressure transmitter, pressure transducer, etc.
3, Weights can be directly added on piston via weight frame due to
low loading center of gravity.
The piston moves stably and pressure barely waves and the value is
correct.
4, The pressure medium above 25MPa is di-iso-octyl sebacate of low
viscosity which can keep the
manometer highly sensitive.
5, All the weights are made of nonmagnetic stainless steel(weight
of 0.05 is made of carbon steel).
6 Working position of piston is detected by displacement sensor.
Upper and lower distance is
±1.5mm. The instrument obviously is sensitive, distinct and
accurate.
7, Wide measuring range, at 1MPa of lower limit, the basic error is
±0.01%, ±0.02%, ±0.05%,
±0.05%.
8, Function: value-transmitting piston-type manometer, calibrating
digital manometer, accurate
pressure manometer and pressure transducer, etc.
9, Material of piston: alloy of high hardness (tungsten carbide).
10, Material of weights: stainless steel: carbon steel.
11, Working medium: transducer oil or the mixture of transducer oil
and kerosene oil if the pressure
is below 25MPa; di-iso-octyl sebacate if the pressure is above
25MPa.