UE双点炉膛压力开关J402-520J402-521（UE double point furnace pressure switch J402-520 J402-521 ）

UE double-point furnace pressure switch J402-520 J402-521  US UE 400 series switch performance UE400 series switch is a multi-purpose pressure switch, especially suitable for when multi-point output and control are required. Two-point and three-point settings provide multiple outputs that can be used for alarm and shutdown, early warning and alarm, high/low limit and liquid level control functions.  The all-weather series switch has a variety of micro switches and a variety of process interface options, so that the 400 series vacuum switch can meet various needs. due to its own characteristics.  400 series switches are widely used in protection and control, industrial process equipment and pumps, gas turbines, compressors, pulp and paper, water and sewage treatment and other industries.  The main features of the UE 400 series switch pressure switch J402-520  UE micro pressure switch : one, two or three switch output, the set point can be set separately epoxy resin shell design meets the requirements of NEMA 4X ●A variety of diaphragms are available, such as 316SS, brass, nitrile rubber and Teflon ●Switches can be selected to refer to the scale or rotate the screw to adjust the set point UE 400 series universal multi-point output switches are as follows: . Storage temperature -54 to 71 degrees . Ambient temperature -40 to 71 degrees. Every time the ambient temperature changes by 28 degrees, the typical drift value of the set point is less than 1% of the full range . The repeatability of the set point. Temperature switch: positive for the adjustable range minus 2% Pressure switch: 126-376, 520-535, 540-547, 570-572, S126-S164B type: plus or minus 2% of the adjustable range; 440-457, 550-559 type: plus or minus of the adjustable range 1%; 610-614 type is plus or minus 3% of the adjustable range  . After 10 milliseconds, 15G shock test, the set point can be reproduced  . After 2.5G, 5-500Hz vibration test, the shock resistance can be repeated Current set point  . Enclosure Die-cast aluminum alloy housing; epoxy coating; gasket seal; clamping screws  . Enclosure rating meets NEMA 4X requirements  . Set 100% respectively within the adjustment range; 521-524, 531-534 type; 50%; 520, 525, 530, 535,  570-572 type; Closed type"  . Electrical rating 15A, 125/250/480VAC, electrical switch is not used for DC power supply form  . Weight 3-7.5 lbs; (varies with models)  . Electrical interface one 3/4"NPT, two 7/ 8" diameter knockout  . Pressure port 1/4" NPTF: Types S126B-S164B, Types 520-535: 1/2" NPFT; Types 540-547; 1/8" NPTF  . Temperature assembly E series adopts F series Same assembly, but limited range due to reference scale Thermometer and capillary; 6 feet long, 304 stainless steel In-line: Type 120 and 121: Nickel-plated brass, also available in 316L stainless steel  . Filling Type 1BS: Filling Solvent: 2BS-8BS; filled with non-toxic oil  . The temperature dead zone is under laboratory conditions, the F series is 1% of the full range, and the E series is 2% .Differential pressure indicator is suitable for 147-S157B type of J400K and J402K; the accuracy is about 1.5% at 50% of the range, and 3% at both sides of the endpoint; the indicator window is made of flexible glass: the indicator can be adjusted on site. Accuracy is 1% of set point range  US UE Switch 400 Series Selection Parameters  

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