UE防爆开关J120-126J120-134真空压力开关（US UE explosion-proof pressure switch J120-126 J120-134 vacuum pressure switch ）

American UE explosion-proof pressure switch J120-126 J120-134 Vacuum pressure switch UE switch performance characteristics  ● Meet UL list and cUL certification and CE standard● Single point output (SPDT or DPDT) ● Welded stainless steel diaphragm ● Water column level low pressure and differential pressure switch ● A variety of optional sensing materials can meet the needs of various corrosivemedia ● Clean stainless steel interface ● Very wide adjustable dead zone can meet the needs of pumps  Common faults and solutions of UE switches 1. Fault phenomenon:The pressure switch has no output signal Reason analysis:(1) The micro switch is damaged(2) The switch setting value is adjusted too high(3) The wire contact connected to the micro switch is not connected properly(4) Pressure sensing Part of the assembly is poor, and there is a phenomenon of stagnation(5) The pressure-sensitive element is damagedSolution:(1) Replace the micro switch(2) Adjust to a suitable setting value(3) Reconnect to make good contactSensitive action(5) Replace the pressure-sensitive element2. Fault phenomenon: Thesensitivity of the pressure switch is poor. Reason analysis(1) Bad assembly / excessive friction of the transmission mechanism (ram or plunger, etc.)(2) The contact stroke of the micro switch is too long(3) Improper adjustment of adjustment screws, ejector rods, etc.(4) Improper installation, such as unevenness and inclinationInstallation solutions: (1) Reassemble to make the action sensitive (2) Reasonably adjust the contact stroke of the micro switch (3) Reasonably adjust the position of the nail and ejector rod (4) Change to vertical or horizontal installation 3. Fault phenomenon: pressure switch The signal is sent too fast Reason analysis (1) The oil inlet damping hole is large (2) The isolation diaphragm is broken (3) The impact pressure of the system is too large (4) The electrical system is designed incorrectly Solution (1) The damping hole is appropriately reduced, Or add a damping tube on the control pipeline (2) Replace the isolation diaphragm (3) Add a damping tube on the control pipeline to reduce the impact pressure ( 4) Design the electrical system according to the process requirements When switching pressure, differential pressure or temperature, its safety performance must always be considered to protect the safety of equipment and personnel. The 120 series products meet UL, CSA, ATEX and other standards, and can meet the certification requirements of many countries and regions. They can be used in explosive areas and environments containing strong corrosive gases to protect the safety of equipment and personnel. UE120 series explosion-proof pressure switch model: J120-190/191/192/193/194 J120-171/172/173/174 J120-701/702/703/704/705 J120-S126B/S134B/S137B/S144B/S152B/ S156B/S164BJ120-126/134/137/144/152/156/164 J120-356/358/361/376 J120-520/521/522/523/524/525 J120-530/531/532/533/534/535 J120-612/616 J120-183/184/185/186/187/188/189 J120-483/484/485/486/487/488/489 J120-S126B/S134B/S137B/S144B/S152B/S156B/S164B

注：除UE防爆开关J120-126J120-134真空压力开关，更多United Electric(UE)型号欢迎电话或在线联系。

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