Float switch For the process industry - ksr-kuebler.com

1 A division of the WIKA groupFloat switchFor the process industryModel FLS (models with Ex approval: 60, AL-ADF)Data sheets showing similar products: Float switch , horizontal installation; model HLS; see data sheet LM switch , lateral installation with external chamber; model ELS; see data sheet LM left: Stainless steel version, mounting thread, model FLS-SFig. right: Plastic version, flange connection, model FLS-PApplications Level measurement for almost all liquid media Pump and level control and monitoring of distinct filling levels Chemical, petrochemical industry , natural gas, offshore, shipbuilding, machine building, power generating equipment, power plants process water and drinking water treatment, food and beverage industrySpecial features Large range of application due to the simple, proven functional principle For harsh operating conditions, long service life Operating limits:- Operating temperature:T = -196.

2 +350 C- Operating pressure:P = Vacuum up to 40 bar- Limit density: 300 kg/m3 Wide variety of different electrical connections, process connections and materials Explosion-protected versionsDescriptionA Float with a permanent magnet moves reliably along with the liquid level on a guide tube. Within the guide tube is fitted a reed contact (inert gas contact), which is energised, through the non-magnetic walls of the Float and guide tube, by the approach of the Float magnet. By using a magnet and reed contact the switching operation is non-contact, free from wear and needs no power supply.

3 The contacts are potential-free. Float switches are also available with multiple switch switching functions always refer to a rising liquid level: Normally open, normally closed or change-over the use of a Float for a max. of 2 switch points a bistable switch behaviour can be achieved, meaning that the switching status also remains available, when the filling level continues to rise above or drop below the switch Float switch is simple to mount and maintenance-free, so the costs of mounting, commissioning and operation are further approvals see page 3 Level measurementKSR data sheet LM 1 of 20 KSR data sheet LM 11/2017 Model overviewModelDescriptionMaterialsStainle ss steelTitanium (grade 2)PVC / PP / (316Ti) (316L) (316L) (316Ti) / (316Ti) / (316Ti) / (316Ti)

4 / BunaFLS-SEStandard version, cable connection, safety extra-low voltagexxxxxxxxFLS-SFStandard version, cable connection, low voltagexxxxxxxxFLS-SAStandard version, connection housing or connector, low voltagexxxxxxxxFLS-SBStandard version, connection housing or connector, safety extra-low voltagexxxxxxxxFLS-SBI (60)Intrinsically safe, Ex ixxFLS-SADFLS-SBD (AL-ADF)Flameproof enclosure, Ex dxxFLS-MEMiniature design, cable connection, safety extra-low voltagexxxxFLS-MBMiniature design, connection housing or connector, safety extra-low voltagexxxxFLS-PFPlastic version, cable connection, low voltagexFLS-PAPlastic version, connection housing or connector, low voltagexFLS-HEPharmaceutical version, cable connection, safety extra-low voltagexxFLS-HAPharmaceutical version, connection housing, low voltagexxFLS-HA3 Sterile version (3-A)

5 , connection housing, low voltagexxFurther special features process connection, guide tube and Float from stainless steel , plastic or Buna Universal signal processing:Connection direct to a PLC is possible, NAMUR connection, signal amplification / contact protection relays Works independently of foaming, conductivity, dielectricity, pressure, vacuum, temperature, vapours, condensation, bubble formation, boiling effects and vibrations Multiple functionality in a single instrument - up to 8 potential-free contacts Exact repeatability of the switch points Float switches qualify as simple apparatus in accordance with EN 60079-11 section and can be installed in zone 1 hazardous areas without certification.

6 So long as the equipment is operated in a certified intrinsically safe circuit with a minimum explosion protection of Ex Customer-specific solutions Special versions for interface layer detection - 100 kg/m3 process connection, guide tube and Float from stainless steel , , titanium, Hastelloy (others on request)Page 2 of 20 KSR data sheet LM 11/2017 Temperature range ( process ) Models FLS-SE, FLS-SF, FLS-HE-30 .. +150 C Models FLS-SA, FLS-SB-196 .. +350 C Models FLS-SxI (60)-50 .. +180 C Models FLS-SxD (AL-ADF)-10 .. +120 C Models FLS-M-30 .. +150 C Models FLS-P-10.

7 +100 C Models FLS-HA, FLS-HA3-40 .. +200 CApprovals Model FLS-SLogoDescriptionCountryEU declaration of conformity Low voltage directive RoHS directive ATEX directive (option)Hazardous areas- Ex iZone 0 Zone 21II 1/2G Ex ia IIC T3 .. T6 Ga/GbII 2D Ex ib IIIC T80 C Db No. KEMA 01 ATEX1053 X - Ex dZone 1 Zone 21II 2G Ex d IIC T6 GbII 2D Ex tb IIIC T80 C DbNo. T V 13 ATEX 7399 XEuropean UnionIECEx (option)Hazardous areas- Ex dZone 1Ex d IIC T6Ex tD A21 IP65 T80 CNo. IECEx TUR EMC directive and low voltage directiveNo. RU Д Hazardous areasNo. RU C-DE.ГБ Economic Community-PESOH azardous areasNo.

8 A/P/HQ/MH/104/3293 / P331149 IndiaDNV GL Ships, shipbuilding ( offshore) Hazardous areasNo. TAA00000 KZInternationalABS Ships, shipbuilding ( offshore)No. 16-HG1591058-PDA Hazardous areasNo. 16-HG1591042-PDA / KEMA 01 ATEX 1053 XInternationalBureau VeritasShips, shipbuildingNo. 04264/H0 und 04568/G0 InternationalLloyd s RegisterShips, shipbuilding ( offshore)No. 07/20006 (E2)International-DIBtSafety ( electr. safety, overpressure, ..)Overflow control per German Water Resources Act (WHG) 19No. 3 of 20 KSR data sheet LM 11/2017 Model FLS-HLogoDescriptionCountryEU declaration of conformity Low voltage directive RoHS directiveEuropean UnionEACEMC directive and low voltage directiveNo.

9 RU Д Economic Community3-A (only model FLS-HA3)Sanitary StandardNo. 1698 USA Model FLS-PLogoDescriptionCountryEU declaration of conformity Low voltage directive RoHS directiveEuropean UnionEACEMC directive and low voltage directiveNo. RU Д Economic CommunityApprovals and certificates, see website Application examplesHazardous areaNon-hazardous areaintrinsically safeIntrinsically safe protection relay protection relay detector (Ex i)Level control (min/max control)Hazardous areaNon-hazardous areaintrinsically safeIntrinsically safe 4 of 20 KSR data sheet LM 11/2017 Model FLS-SA, low voltageModel FLS-SB, safety extra-low voltageElectrical connection Connection housingAluminium 64 x 58 x 34 mm, with 1 contactAluminium 80 x 75 x 57 mm, 2 or more contacts Coupler connectorOption.

10 Polypropylene, polyester, stainless steelProcess connection Mounting thread downwardsG 1 1/2" or G 2" Mounting flange- DIN DN 50 .. DN 200, PN 6 .. PN 100- DIN EN 1092-1 DN 50 .. DN 200, PN 6 .. PN 100- ANSI 2" .. 8", Class 150 .. 600others on requestGuide tube diameter12 mm / 14 mm / 18 mmGuide tube length L 3,000 mm for guide tube diameter 12 or 14 mm 6,000 mm for guide tube diameter 18 mmFloatMaterial: Stainless steel (option: Buna (NBR), titanium) Float diameter: 44 .. 120 mmFloat selection depending on guide tube diameter and process conditions (see page 17, 18, 19)Temperature range Standard version High-temperature version Low-temperature version-30.