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China, Chinese Hollysys Alfk-340 Top-Mounted Connecting Rod Float Level Switch1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
SensorLiquid Level SensorSignal ConverterLiquid Level
Hangzhou HollySys Automation Co., Ltd.
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Product Description The ALFK-340 series is based on the principle that the magnetic float rises and falls synchronously with the liquid level. When the magnetic float, along the guide rod, reaches the position where the reed switch is installed, the reed switch is closed or released, and the corresponding digital signal is output. This signal can be directly input to the PLC and flash alarm for automatic level control and alarm. It is matched with the signal converter or input to the PLC to directly drive the 220VAC control circuit for automatic motor and valve control.Key Technical Specifications· Detection range: 100 mm ~ 6000 mm· Control accuracy: ±10 mm· Contact capacity: 24VDC, 0.5A (resistive); 220VAC, 1A, available for special requirements of users· Explosion-proof grade: Intrinsically safe Exia IIC T4-T6 Ga Flameproof Exd IIC T4-T6· Specifi cation of float: φ92, φ84, φ54, φ48, φ25 (for special requirements, φ140 and φ76 are available)· Float material: 304, 316L, PP · Operating temperature: -10 ~ 120° C· Operating pressure: -0.1MPa~2.5MPa· Specification of connecting flange: DN100 (DN50, DN25), PN1.0 (PN1.6)· Electrical interface: M20×1.5 internal thread· Connecting flange standard: HG20592~20635-97. Other standards (such as GB, JB, ANSI, and JIS) used by the user shall be indicated at the time of ordering.System ConnectionThe output signal of the level switch is connected with PLC and other systems for use. When the user uses the level switch as control and alarm signal, if the control (alarm) loop voltage is greater than 36VAC(DC), the user should equip the switch with a signal converter, which can convert the reed switch signal of the level switch into a relay signal with larger capacity, to ensure the safety and reliability of the level switch and prolong the service life.Comparison Table of Float Specifi cation, Material, Adapter Flange, Operating Pressure and TemperatureFloat specificationφ92φ84φ48Float material304(316L)PP304(316L)Specifi cation of adapter flange>DN100>DN100>DN50Applicable pressure1.0MPaNormal pressure2.5MPaApplicable temperature120oC60oC120oCModel and Specification Table11 magnetic float and 1 control pointNumber of floats; number of control points22 magnetic floats and 2 control points33 magnetic floats and 3 control points44 magnetic floats and 4 control points A5DN50 PN1.6(HG/T20592-2009)Connection modeA8DN80 PN1.6(HG/T20592-2009)A10DN100 PN1.6(HG/T20592-2009)B5DN50 Class150(ANSI B16.5)B8DN80 Class150(ANSI B16.5)B10DN100 Class150(ANSI B16.5)COthers AGuide rod material: stainless steel 304Guide rod materialBGuide rod material: stainless steel 316LPGuide rod material: stainless steel, case material: PPFGuide rod material: stainless steel, case material: PTFE POrdinary (waterproof)Explosion- proof typeDExplosion-proof typeBIntrinsically safe -Installation height (mm)Installation height L1U/L1DUpward movement of first control point/downward movement of fi rst control pointMovement method of control pointL2U/L2DUpward movement of second control point/downward movement of second control pointL3U/L3DUpward movement of third control point/downward movement of third control pointL3U/L4DUpward movement of fourth control point/downward movement of fourth control point KNormally open contactContact typeBNormally closed contact -Density g/cm3Density DOperating pressure: normal pressureOperating pressure-Actual operating pressure (MPa)Other special requirements can be indicated at the time of ordering!Product ImagePackaging & DeliveryCategoryInternational Commercial Terms (Incoterms)Terms of PaymentNearest PortALFK-340 Top-mounted Connecting Rod Float Level SwitchCIF, CFR, DAPLC, T/T, D/PShanghai, Guangzhou, TianjinRelated ProductsALYK-200 Tuning Fork Level SwitchALFK-300 Side-mounted Float Level SwitchALDK-400 RF Admittance Level SwitchCompany Profile
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