适用于测量对铜合金无腐蚀、无爆炸危险、非结晶的各种液体、气体等介质的压力。 The electric contact pressure gauge is suitable for measuring the pressure of various liquids, gases and other mediums which have no corrosion, no explosion hazard, and are non-crystalline to copper alloys. The meter can be used with the corresponding electrical components to achieve the two-position automatic control and signal (alarm) of the maximum or minimum pressure value set in advance for the pressure system under test. It consists of a measurement system, an indicating device, a magnetically assisted electrical contact device, a housing, an adjustment device, and a junction box. When the measured pressure acts on the spring tube, the corresponding end of the spring tube produces a corresponding elastic deformation—displacement, which is amplified by the transmission mechanism and then indicated by the indicating device on the dial. At the same time, when the pointer drives the movable contact of the electrical contact device to contact the contact (upper or lower limit) on the set pointer, the control system turns on or off the circuit to achieve the purpose of automatic control and signal alarm.
装置的电接触信号针上，装有可调节的永久磁钢，可以增加接点吸力，加快接触动作，从而使触点接触可靠，消除电弧，能有效地避免仪表由于工作环境振动或介质压力脉动造成触点的频繁关断。 The electric contact signal needle of the electric contact pressure gauge device is equipped with an adjustable permanent magnetic steel, which can increase the contact suction force and speed up the contact action, thereby making the contact contact reliable, eliminating the arc, and effectively preventing the instrument from vibrating due to the working environment. Or the medium pressure pulsation causes frequent contact closure. Therefore, the meter has the advantages of reliable operation, long service life, and large contact switch power. Contact device electrical parameters and control form Contact power Maximum working voltage Maximum working current control form. 30VA (resistive load) 220VDC or 380VA. C1A upper and lower limits, double upper limit, double lower limit Structure principle: The electrical contact pressure gauge is measured by the measurement system and indicates System, magnetically assisted electrical contact device, housing, adjustment device and junction box (plug socket). The working principle of the electric contact pressure gauge is based on the spring tube in the measurement system under the pressure of the measured medium, causing the end of the spring tube to generate a corresponding elastic deformation and displacement, and the transmission is magnified by the gear transmission mechanism through the lever. The indicator (with the contacts) on the fixed gear indicates the measured value on the dial one by one. At the same time, when it comes into contact with the contact (upper or lower limit) on the setting pointer (moving or breaking), the circuit in the control system can be opened or closed to achieve automatic control and development. The purpose of the letter alarm. For the reference installation dimensions of the electric contact pressure gauge and the connection thread with the equipment, see the reference materials.
仪表不仅具有设计新颖、结构可靠、品种规格齐全、动作稳定性好、适应性强的特点外，而且又具有测控并茂、安装简单、维护量小等优点，因此，它是一般无指示、无切换差调整和无外设定装置的压力控制器所无可比拟的压力测控仪表。 In view of the fact that the electric contact pressure gauge instrument not only has the characteristics of novel design, reliable structure, complete variety and specifications, good motion stability, and strong adaptability, but also has the advantages of simultaneous measurement and control, simple installation, and low maintenance. Therefore, it is general Unmatched pressure measurement and control instruments for pressure controllers without instructions, without switching difference adjustment, and without external setting devices. In order to meet the differences of the tested objects (there are requirements for shock resistance or corrosion resistance and explosion-proof), you can choose to meet the requirements of shock-resistant electrical contact pressure gauges or corrosion-resistant electrical contact pressure gauges and explosion-proof electrical contact pressure gauges.
The general type is suitable for measuring the pressure of gases and liquids that do not corrode copper alloys and iron.
The anti-corrosion type main pressure measuring element and the instrument shell are made of stainless steel, which is suitable for measuring the pressure of highly corrosive gases and liquids.
The shock-resistant type is filled with oil in the watch body and uses liquid damping to ensure a vibration-free display. It is suitable for places with strong pulsation of the medium and large environmental vibrations.
Explosion-proof type is suitable for dangerous places with explosive mixtures in the environment