The special magnetic auxiliary contact pressure gauge is a pressure gauge with an electric contact device. It is often used together with the corresponding electrical devices to measure non-corrosive copper alloys, no explosion risk, and non-crystalline various liquid and gas media. pressure. The electric contact pressure gauge is used to measure the positive and negative pressures of gases and liquid media that do not cause corrosion to copper and copper alloys. When the pressure reaches a predetermined value, it sends a signal and turns on the control circuit to achieve automatic control. The electrical contact pressure gauge has a dual-position automatic control and signaling alarm function.
Special magnetic contact pressure gauge use precautions
1. The electrical contact pressure gauge should be installed vertically and try to maintain the same level with the measurement point.
2. After the electrical circuit of the electrical contact pressure gauge is properly connected, tighten the compression nut and carefully inspect and perform the test operation.
3, electric contact pressure gauge in the measurement of stable pressure, can be used to the upper limit of 3/4; in the measurement of alternating pressure is used to the upper limit value of 2/3; measured negative pressure is not limited.
4. When opening the outlet box or adjusting the upper and lower limit setting range, you must first cut off the power supply.
5. In the case of normal use, the electrical contact pressure gauge should be inspected periodically and at least once every six months. Electric contact pressure gauges such as sudden problems (pressure loss due to leakage of the spring tube; contact welding, or reliability due to severe oxidation affecting the continuity of the contacts, failure of pointers, etc.) should be immediately Check or replace it.
6. The electric contact pressure gauge should always be kept dry and clean during use.
7. The reliability of the explosion-proof performance of the electrical contact pressure gauge depends mainly on the compressive strength of the flameproof enclosure and the quality of the flameproof enclosure. Therefore, in the process of installation, use and maintenance, be sure to pay attention to the flameproof surface, do not bump scratches, especially when dismantling the junction box of the electrical contact pressure gauge or pay special attention when performing a complete overhaul. No painting is allowed on the flameproof surface.
8. During inspection and maintenance, if the user is not clear about the basic knowledge of explosion-proof electrical equipment, the structural features and requirements of the explosion-proof electrical contact pressure gauges are not well understood, and they must not be pieced together or refitted at will, otherwise they will be damaged. The explosion proof performance of the contact pressure gauge.
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