UE压力开关J400-126J402-134（US UE pressure switch J400-126 J402-134 ）

US UE pressure switch J400-126 J402-134   working principle The working principle of the pressure switch: When the pressure in the system is higher or lower than the rated safety pressure, the disc in the sensor moves instantaneously, and the switch joint is connected or disconnected by connecting the guide rod. When the pressure drops or rises When the rated recovery value is reached, the disc resets instantaneously and the switch automatically resets, or in simple terms, when the measured pressure exceeds the rated value, the free end of the elastic element is displaced, and the switch element is pushed directly or after comparison to change the switch. application The on-off state of the component can achieve the purpose of controlling the measured pressure. The elastic components used in the pressure switch include single coil spring tube, diaphragm, bellows and so on. The 400 series pressure switch is a multi-purpose series switch, especially suitable for when multiple output and control are required. Two-point and three-point settings provide multi-point output, which can be used for alarm and shutdown, early warning and alarm, high/low limit and liquid level control functions. All-weather series switches have a variety of micro switches and a variety of process interface options, so that the 400 series switches can meet various needs. Due to its own characteristics, the 400 series is widely used in protection and control, industrial process equipment and pumps, steam turbines, compressors, pulp and paper, water and sewage treatment and other industries. Features   · One, two or three switching outputs, individually set for 100% span within the setpoint range 　· Epoxy coated and cast aluminum housing meets NEMA 4X standards   . There are a variety of pressure components and materials to choose from   . There is a reference scale or a hex screw for adjustment when setting   . FM Approved   . adjustable range             Pressure: 30″Hg Vac to 6000psi (-1 to 413.7bar)              Micro pressure 300″wc vacuum to 250″wc pressure (-746.7 to 622.3mbar)              Differential pressure 1″wcd to 200psid (2.5mbar to 13.8bar)              Temperature -180 to 650°F (-117.8 to 343.3°C)   technical parameter Storage temperature -54～71℃     Ambient temperature -40～71°C For every 28°C change in ambient temperature, the typical drift of the set point does not exceed 1%     Set point repeatability pressure switch type 126-376, type 520-535: ±1% within the adjustable range;                               Type 440-559: ±0.5% within the adjustable range Type 610-614: ±1.5% within the adjustable range     Shock resistance tested at 15G, 10ms cycle time. Reproducible set point     Anti-vibration After 2.5G, 5 ~ 500HZ vibration test, the set point can be reproduced     Housing die-cast aluminum alloy with epoxy resin coating. Gasket sealing. Clamping screws     The enclosure protection level plus option M900 can meet the requirements of NEMA4X.IP65 (waterproof electrical interface)     Electrical rating 15 amps. 125/250/480 VAC      Weighs approximately 3-7.5 lbs     Three 7/8" diameter punched holes for electrical connections     Pressure connection port 1/4"NPTF; S126B-S164B type. 520-535 type; 1/2"NPTF  

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