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High Precision Pressure Gauge Precision Grade
- Sep 08, 2017 -

The high precision pressure gauge is a high-precision pointer pressure gauge with a spring tube as the measuring element. Is mainly used for calibration, verification accuracy requirement of high pressure measurement instrument and parameter of a certain functional relation with stress other continuous measurement of the value, calibration, testing, calibration, testing, calibration and verification.

Precision grade

Accuracy grade of pressure gauge, is the permissible error of pressure gauge range to represent the percentage of, general component is 0.5, 1, 2, 2.5, 1.6, 3, 4, seven grade levels (boiler no 3 and 4), the smaller the value, the higher the precision. For example, dial range 0 ~ 2.5 MPa precision 2. Pressure gauges at level 5, the allowable error between the pressure value of its pointer and the actual pressure value of the measured medium, shall not exceed 2.5 MPa times 2.5 MPa = plus or minus 0.062 5mpa. When the pressure gauge indicates a pressure of 0.8mpa, the actual pressure is between 0.737 5 ~ 0.862 5MPa.

It can be seen that the actual error of the pressure gauge is not only related to the accuracy, but also related to the size of the pressure gauge.

The higher the precision (the smaller the number), the smaller the allowable error of the pressure gauge.

The larger the measurement, the greater the error of the pressure gauge.

It is divided by the percentage of allowable error to the dial scale, and the greater the accuracy rating, the greater the limit value of the dial scale. The larger the pressure gauge, the pressure gauge of the same accuracy, the greater the value of the pressure value.

apply

High precision pressure gauge can be widely used in petroleum, chemical industry, metallurgy, electric power, environmental protection and other fields of corrosive gas, liquid and steam gage pressure, absolute pressure, negative pressure measurement and control, also can be used to measure low vacuum, atmospheric pressure and the pressure of the bad environment condition.

feature

Temperature compensation for laser adjustment, temperature range is used

Imported diffused silicon pressure sensor is suitable for measurement in different pressure situations

Anti - overload anti - impact and interference ability

Good corrosion resistance, can measure a variety of media

Overvoltage overvoltage protection circuit

Protection level

Surge voltage, reverse polarity protection

It can be displayed with liquid crystal display

Working principle of pressure gauge is: when the measured medium pressure ACTS on the elastic element, make its produce elastic deformation, displacement, amplified by rod drive transmission mechanism, measured pressure by indicating device instructions.

Accuracy grade of pressure gauge, is the permissible error of pressure gauge range to represent the percentage of, general component is 0.5, 1, 2, 2.5, 1.5, 3, 4, seven grade levels (boiler no 3 and 4), the smaller the value, the higher the precision. For example, dial range 0 ~ 2.5

The pressure gauge of the MPa precision 2.5, the allowable error between the pressure value of its pointer and the actual pressure value of the measured medium, must not exceed 2.5mpa * 2.5% = plus or minus 0.062 5

MPa; When the pressure gauge indicates 0.8mpa, the actual pressure is between 0.7375 and 0.8625 MPa.

It can be seen that the actual error of the pressure gauge is not only related to the accuracy, but also related to the size of the pressure gauge. The higher the precision (the smaller the number), the smaller the allowable error of the pressure gauge. The larger the measurement, the greater the error of the pressure gauge.