详细说明
Product Name: Anti High Pressure Switch of Ywk-18d Model NO.: YWK-18D Certification: ISO9001 Brand: Tian Xiang Detection Method: Correlation Type Contact Type: Type a Contact Contact: Normally Open Explosion-proof Type: Non Explosion-proof Application: Industrial Usage: Control Switch Structure: Power Built-in Type Number of Switch: Single Control Switch Type: Mechanical Principle: Capacitive Wires: Two-Wires Working Viscosity: <1X10-3m2/S Protection Class of Enclosure: IP65 Trademark: TIAN XIANG Transport Package: Craton Origin: China HS Code: 9026800000 Product Description YWK-18D Pressure SwitchesThe sensor of Switches is Diaphragm type, it has advantages as Hi-pressure endurable, long working life,compact structure. The enclosure is made of high-class stainless materials, solid and durable.Dead Band Non-AdjustableModelSet Point Adjustable Range (Mpa)Lower limit of Set Point Range (Mpa)Upper limit of Set Point Range (Mpa)Max. Allowable PressureDiaphragmConnectionYWK-18D/010.035~0.170.0150.031020Steel Nitrile rubber or 1Cr18Ni9Ti Fluorine rubberM14x1.5 (M) or G1/4" (F)YWK-18D/020.1~0.50.0350.07YWK-18D/030.35~10.070.14YWK-18D/040.5~4.50.270.460YWK-18D/051.2~120.51.2YWK-18D/061.6~160.81.4YWK-18D/072.4~241.62.8YWK-18D/083.2~321.84.5YWK-18D/094.2~4224.6Remarks: In the practice, even the temporal peak value of pressure, should no exceed the Max. AllowablePressure.Special requirements on Dead Band or Connection can be designed customizedThe Adjustment for Set Point[Example] Choose Switch with Pressure Range from 2.4Mpa to 24Mpa, a contact signal is required to begenerated when pressure falls to 15Mpa(The Decreasing Set Point), see steps as following:To screw the switch into connection of Oil Pressure Checkout Test Set. Exert pressure on it for 2 minutessimulate its practical working situation, thereafter to make the setting.link the Out-put lead with Multimeter.Screw-off the screws on the housing.Add the pressure to 15Mpa, this value can be read from the standarded pressure gauge.Use socket screwwrench (Φ 3mm), clockwise rotate the Set-point Adjusting Bolt, to make the Set-Point becomebigger, until it switches at 15Mpa.Vering the testing pressure to make it change up and down arround 15Mpa, check if the Switch switches at15Mpa when pressure falls, this value is the Decreasing Set Point need to be set, the correspondent IncreasingSet Point is within 16.9Mpa to 18Mpa.Tighten the Locknut.While removing the cover, please do not touch the components inside the switches.The Set Point must be within the aAdjustable Range, Dead Band is expressed as Typical at MID-range.Normally it is the 20% to80% of the Ajustable Range.If the switches are outdoor application, sufficient protections are necessary, for the severe variation of theambient temperature, radiation of the sunlight, permeation of the corrosive gas or water, will influence the life ofthe switches.During the process of installation or disassembly, a spanner MUST be used to clip and tighten the sensor,absolutely avoid the countermovent between the sensor and housing of the switches(please refer to thedrawings)
