A, product introduction

Bellows pressure because of the pressure sensor is composed of two pieces of corrugated metal diaphragm, so called bellows pressure gauge, it is different from the general pressure gauge of pressure on its energy pressure of relatively small, so it is also called micro pressure table, called the water table in Taiwan or micro pressure gauge, and because it usually used in gas equipment and gas piping so also someone called gas pressure gauge.The mechanical pressure gauge pressure sensitive components are usually connected by two pieces of circular corrugated metal diaphragm, also has a single diaphragm structure, its material is usually copper box of gold, such as phosphor copper, beryllium copper, used in special working environment or for special pressure medium usually choose stainless steel or other metal alloy, stainless steel usually type use SUS304, SUS316 or SUS316L type.
Principle of bellows pressure gauge is measuring the pressure of medium role in the bellows inside of the cavity, the resulting usually linear elastic deformation and pressure, pressure sensitive element deformation amplitude depends on the size of the medium pressure, can be used to indirectly measure the pressure of the medium.Pressure value by the size of the gear and the connecting rod is passed to the terminal indicating device (pointer and dial).Bellows pressure gauge are commonly used to measure the pressure of the gas, and energy micrometer, pressure range and the precision of measurement, often depends on the dial size (the size of the bellows) and the material of pressure sensitive element, PIONEER micro pressure table usually have over-voltage protection device, can to a certain extent, prevent damage of stress caused by the instrument, but its role is limited, can't rely on this feature, it is important to note that when choosing range so as to avoid unnecessary losses.When several bellows sensitive element stacked together will produce larger first to measuring the pressure of a tiny, heritability of bellows pressure gauge measuring range in 0 ~ 2.5 mbar to 0 ~ 1 bar, the precision of measurement in 0.1 ~ 5 level.For all the different at high altitude area, and using the instrument working environment temperature is different, because of its extremely sensitive pressure indicator, and will cause the pointer is not zero, PIONEER of micro pressure table have zero device, can be suitable for all kinds of working environment.

Another PIONEER engineers suggest that the uniqueness of bellows pressure gauge because of its structure, in the measurement of liquid will be influenced by gravity and tension, precision will have fallen sharply, in theory, the bellows pressure gauge does not apply to measure liquid pressure, such as certain feature-the liquid micro pressure, please contact our technical department, we will serve you wholeheartedly.

Second, the technical parameters

Three, characteristics

1, USES the overpressure prevent structure, can effectively prevent overvoltage caused the damage, prolong the life of the instrument.

2, the instrument has zero device, can effectively guarantee the pressure gauge can use in various areas, zero at any time.

3, different shell material can make the bellows pressure gauge has widely using space, dispense with the working environment of pressure gauge on the use of various constraints.

4, flexible installation, easy to remove.The appearance of bright display value more make use of equipment.

5, numerous pressure range, can better adapt to the requirement of customers.

6, a variety of bellows materials to choose from.

Fourth, exterior structure

Five, the selection of

Does common bellows pressure gauge used for measuring the copper and copper alloy non-corrosive gas or steam the small pressure.
Does the bellows vacuum gauge pressure gauge used for measuring the copper and copper alloy non-corrosive tiny negative pressure of gas or steam.

Does the bellows pressure vacuum gauge used to measure of copper and copper alloy non-corrosive gas or vapour is tiny negative pressure, can be a dial indicator on positive pressure and negative pressure.

Does the stainless steel bellows pressure gauge is suitable for the corrosive strong for stainless steel components to detect gas medium and severe external corrosion environment or wild, open, unusual working conditions, high temperature and high humidity, tiny pressure measuring gas or steam

Does electric contact bellows pressure gauge Used to measure various explosive dangerous gas medium small pressure and measured pressure (control) system for automatic control and a letter (alarm).

Six, application



Our company production of micro pressure table adopts advanced technology and excellent craft, widely used in pipe terminal, according to the gas pressure is suitable for the measurement of the air and corrode the copper alloy micro pressure and negative pressure gas, the product is applied to gas burning equipment, coating systems and all kinds of industrial gas heating system, gas, natural gas pipeline project, the high pressure bellows pressure gauge is also applicable to coating equipment and spraying machinery, air pipeline, gas pipeline, burning device and other similar devices, such as building adjustable dividers, gasification station, gas station position, burner, boiler, oven, oven, kitchen utensils and appliances and other industrial equipment gas measuring display instrument, is also sometimes used to switch on the power industry, precise micromanometer mountain can also be used to measure atmospheric pressure, alternative altimeters, according to the change of the atmospheric pressure is used to determine altitude, and can according to change of atmospheric pressure to estimate the state of the weather.
Seven, use and maintenance
(1) meter must be installed vertically: should be used when the wrench to tighten, should not be strong torsional case;Transportation should avoid collision.
2 meter using appropriate at ambient temperature is 25 ~ 55 ℃.
(3) the use of the work environment vibration frequency < 25 hz, the amplitude is not greater than 1 mm.
(4) use arising from working environment temperature is too high or made into earth and use of low atmospheric pressure and temperature difference, instrument indicated value return to zero, or appear, indicating error please zero before use.
5] instrument using range, should be between the upper limit of 1/3 to 2/3.
[6] in gas medium or high temperature corrosive medium, please pay attention to the choice of stainless steel, and USES the safety glass mirror.
Once the instrument should be regular check (at least once every three months)
Being needed measuring instrument of corrosive medium, in order, shall indicate the requirements conditions such as medium material.