Float switch For the process industry

Transcription

1 Level measurement Float switch For the process industry Model FLS (models with E approval: 60, AL-ADF) KSR data sheet LM for further approvals see page 3 Applications 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 industry Special features Large range of application due to the simple, proven functional principle For harsh operating conditions, long service life Operating limits: - Operating temperature: T = C - Operating pressure: P = Vacuum up to 40 bar - Limit density: ρ 300 kg/m 3 Wide variety of different electrical connections, process connections and materials Eplosion-protected versions Description A 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. The contacts are potentialfree. Float switches are also available with multiple switch points. Fig. left: Stainless steel version, mounting thread, model FLS-S Fig. right: Plastic version, flange connection, model FLS-P The switching functions always refer to a rising liquid level: Normally open, normally closed or change-over contact. Through the use of a float for a ma. 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 point. The float switch is simple to mount and maintenance-free, so the costs of mounting, commissioning and operation are low. KSR data sheet LM /2017 Page 1 of 20 Data sheets showing similar products: Float switch, horizontal installation; model HLS; see data sheet LM Float switch, lateral installation with eternal chamber; model ELS; see data sheet LM A division of the WIKA group

2 Further special features Process connection, guide tube and float from stainless steel , plastic or Buna Universal signal processing: 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 Eact repeatability of the switch points Float switches qualify as simple apparatus in accordance with EN section 5.7 and can be installed in zone 1 hazardous areas without certification, so long as the equipment is operated in a certified intrinsically safe circuit with a minimum eplosion protection of E ib. Options Customer-specific solutions Special versions for interface layer detection -ρ 100 kg/m 3 Process connection, guide tube and float from stainless steel , , titanium, Hastelloy (others on request) Model overview Model Description Materials FLS-SE FLS-SF FLS-SA FLS-SB FLS-SBI (60) FLS-SAD FLS-SBD (AL-ADF) FLS-ME FLS-MB FLS-PF FLS-PA FLS-HE FLS-HA FLS-HA3 Stainless steel (316Ti) (316L) (316L) (316Ti) / PP (316Ti) / PA (316Ti) / Ms (316Ti) / Buna Standard version, cable connection, safety etra-low voltage Standard version, cable connection, low voltage Standard version, connection housing or connector, low voltage Standard version, connection housing or connector, safety etra-low voltage Intrinsically safe, E i Flameproof enclosure, E d Miniature design, cable connection, safety etra-low voltage Miniature design, connection housing or connector, safety etra-low voltage Plastic version, cable connection, low voltage Plastic version, connection housing or connector, low voltage Pharmaceutical version, cable connection, safety etra-low voltage Pharmaceutical version, connection housing, low voltage Sterile version (3-A), connection housing, low voltage Titanium (grade 2) PVC / PP / PVDF Page 2 of 20 KSR data sheet LM /2017

3 TYPE APPROVED Temperature range (process) Models FLS-SE, FLS-SF, FLS-HE C Models FLS-SA, FLS-SB C Models FLS-SI (60) C Models FLS-SD (AL-ADF) C Models FLS-M C Models FLS-P C Models FLS-HA, FLS-HA C Approvals Model FLS-S Logo Description Country EU declaration of conformity European Union Low voltage directive RoHS directive ATEX directive (option) Hazardous areas - E i Zone 0 Zone 21 - E d Zone 1 Zone 21 II 1/2G E ia IIC T3... T6 Ga/Gb II 2D E ib IIIC T80 C Db II 2G E d IIC T6 Gb II 2D E tb IIIC T80 C Db IECE (option) Hazardous areas - E d Zone 1 E d IIC T6 E td A21 IP65 T80 C EAC EMC directive and low voltage directive No. RU Д-DE.A301.B Hazardous areas No. RU C-DE.ГБ08.B PESO Hazardous areas No. A/P/HQ/MH/104/3293 / P DNV GL Ships, shipbuilding (e.g. offshore) Hazardous areas No. TAA00000KZ ABS Ships, shipbuilding (e.g. offshore) No. 16-HG PDA Hazardous areas No. 16-HG PDA / KEMA 01 ATEX 1053 X Bureau Veritas Ships, shipbuilding No /H0 und 04568/G0 Lloyd s Register Ships, shipbuilding (e.g. offshore) No. 07/20006 (E2) - DIBt Safety (e.g. electr. safety, overpressure,...) Overflow control per German Water Resources Act (WHG) 19 No. Z No. KEMA 01 ATEX1053 X No. TÜV 13 ATEX 7399 X No. IECE TUR X International Eurasian Economic Community India International International International International Germany KSR data sheet LM /2017 Page 3 of 20

4 Model FLS-H Logo Description Country EU declaration of conformity Low voltage directive RoHS directive EAC EMC directive and low voltage directive No. RU Д-DE.A301.B A (only model FLS-HA3) Sanitary Standard No European Union Eurasian Economic Community USA Model FLS-P Logo Description Country EU declaration of conformity Low voltage directive RoHS directive European Union EAC EMC directive and low voltage directive No. RU Д-DE.A301.B Approvals and certificates, see website Eurasian Economic Community Application eamples Full detector (E i) intrinsically safe intrinsically safe Intrinsically safe relay e.g. KFD2-SR2-E2.W Intrinsically safe relay e.g. KFD2-SR2-E2.W Hazardous area Non-hazardous area Hazardous area Non-hazardous area Level control (min/ma control) Contact protection relay e.g. KFD2-ER-1.6 Contact protection relay e.g. KFD2-ER-1.6 Page 4 of 20 KSR data sheet LM /2017

5 Float switch, standard version with connection housing or connector Models FLS-SA, FLS-SB Process connection, guide tube and float from stainless steel (316Ti) M201,5 Mounting thread Flange housing SW 30 or SW 36 L 3 =... L 2 =... Float Ø Electrical connection Process connection Guide tube diameter Guide tube length L Float Temperature range Standard version High-temperature version Low-temperature version Switching function Ma. number of contacts Switch position Distance between switch points Switching power Normally open, normally closed Change-over Model FLS-SA, low voltage Model FLS-SB, safety etra-low voltage housing Aluminium mm, with 1 contact Aluminium mm, 2 or more contacts Coupler connector Option: Polypropylene, polyester, stainless steel Mounting thread downwards G 1 1/2" or G 2" Mounting flange - DIN DN DN 200, PN 6... PN DIN EN DN DN 200, PN 6... PN ANSI 2"... 8", Class mm / 14 mm / 18 mm 3,000 mm for guide tube diameter 12 or 14 mm 6,000 mm for guide tube diameter 18 mm Material: Stainless steel (option: Buna (NBR), titanium) Float diameter: mm Float selection depending on guide tube diameter and process conditions (see page 17, 18, 19) C C C Observe the temperature range of the float and the connection housing Alternatively normally open (NO), normally closed (NC) or change-over (SPDT) contact - on rising level 6 NO or NC, or 4 SPDT Dimensions L1, L2, L3... (from sealing face, starting from top) Minimum 20 mm (depending on the selection of the float and the contacts) AC 230 V; 100 VA; 1 A DC 230 V; 50 W; 0.5 A AC 230 V; 40 VA; 1 A DC 230 V; 20 W; 0.5 A Mounting position Vertical ±30 Ingress protection up to IP66 or IP68 per IEC/EN (depending on version) AC < 50 V; 100 VA; 1 A DC < 75 V; 50 W; 0.5 A AC < 50 V; 40 VA; 1 A DC < 75 V; 20 W; 0.5 A KSR data sheet LM /2017 Page 5 of 20

6 Float switch, standard version with cable connection Models FLS-SE, FLS-SF Process connection, guide tube and float from stainless steel (316Ti) cable SW 22 or SW 27 L 2 = % display L 3 =... Float Ø Model FLS-SF, low voltage Model FLS-SE, safety etra-low voltage Electrical connection cable PVC Silicone PUR Process connection Mounting thread upwards: G ⅜" or G ½" Guide tube diameter 12 mm / 14 mm / 18 mm Guide tube length L 3,000 mm for guide tube diameter 12 or 14 mm 6,000 mm for guide tube diameter 18 mm Float Material: Stainless steel (option: Buna (NBR), titanium) Float diameter: mm Float selection depending on guide tube diameter and process conditions (see page 17, 18, 19) Temperature range PVC/PUR cable C Silicone cable C Observe the temperature range of the float Switching function Alternatively normally open (NO), normally closed (NC) or change-over (SPDT) contact - on rising level Ma. number of contacts 6 NO or NC, or 4 SPDT for PVC and PUR cable 5 NO or NC, or 3 SPDT for silicone cable Switch position Dimensions L1, L2, L3... (from sealing face, starting from top) Distance between switch points Minimum 20 mm (depending on the selection of the float and the contacts) Switching power Normally open, normally closed Change-over AC 230 V; 100 VA; 1 A DC 230 V; 50 W; 0.5 A AC 230 V; 40 VA; 1 A DC 230 V; 20 W; 0.5 A Mounting position Vertical ±30 Ingress protection up to IP66 or IP68 per IEC/EN (depending on version) AC < 50 V; 100 VA; 1 A DC < 75 V; 50 W; 0.5 A AC < 50 V; 40 VA; 1 A DC < 75 V; 20 W; 0.5 A Page 6 of 20 KSR data sheet LM /2017

7 Float switch, eplosion-protected version E i, intrinsically safe Model FLS-SBI (60) KEMA 01 ATEX 1053 X (II 1/2G E ia IIC T3... T6 Ga/Gb or II 2D E ib IIIC T80 C Db) Process connection, guide tube and float from stainless steel (316Ti) M201,5 Mounting thread Flange housing SW 30 or SW 36 L 3 =... L 2 =... Float Ø Electrical connection Process connection Guide tube diameter Guide tube length L Float Temperature class Process temperature Ambient temperature Switching function Ma. number of contacts Switch position Distance between switch points Switching power Model FLS-SBI housing: Aluminium Option: Polyester, stainless steel Mounting thread downwards G 1 1/2" or G 2" Mounting flange - DIN DN DN 200, PN 6... PN DIN EN 1092 DN DN 200, PN 6... PN ANSI 2"... 8", Class mm / 14 mm / 18 mm 3,000 mm for guide tube diameter 12 or 14 mm 6,000 mm for guide tube diameter 18 mm Material: Stainless steel (option: Buna (NBR), titanium) Float diameter: mm Float selection depending on guide tube diameter and process conditions (see page 17, 18, 19) T3 T4 T5 T6 180 C 130 C 95 C 80 C 60 C 60 C 60 C 60 C Alternatively normally open (NO), normally closed (NC) or change-over (SPDT) contact - on rising level 6 NO or NC, or 4 SPDT for guide tube diameter 12, 14 or 18 mm Dimensions L1, L2, L3... (from sealing face, starting from top) Minimum 20 mm (depending on the selection of the float and the contacts) Only for connection to a certified intrinsically safe circuit with ma. U i = 36 V I i = 100 ma C i = 0 nf L i = 0 μh Mounting position Vertical ±30 Ingress protection up to IP66 or IP68 per IEC/EN (depending on version) KSR data sheet LM /2017 Page 7 of 20

8 Float switch, eplosion-protected version E d, flameproof enclosure Models FLS-SAD, FLS-SBD (AL-ADF) TÜV 13 ATEX 7399 X (II 2G E d IIC T6 Gb or II 2 D E tb IIIC T80 C Db) Process connection, guide tube and float from stainless steel Mounting thread Flange 1/2" NPT 3/4" NPT M housing SW 30 or SW 36 G 1 1/2" or G 2" L 3 =... L 2 =... Float Ø Model FLS-SAD Model FLS-SBD Electrical connection housing: Aluminium Option: Stainless steel Process connection Mounting thread downwards G 1 1/2" or G 2" Mounting flange - DIN DN DN 350, PN 6... PN 40 - ANSI 2"... 14", Class Guide tube diameter 12 mm / 14 mm Guide tube length L 4,000 mm for guide tube diameter 12 mm 6,000 mm for guide tube diameter 14 mm Float Material: Stainless steel Float diameter: mm Float selection depending on guide tube diameter and process conditions (see page 17, 18, 19) Temperature range Process temperature Switching function Ma. number of contacts Switch position Distance between switch points Switching power T4 T5 T6 120 C 95 C 80 C Change-over SPDT - on rising level 4 SPDT Dimensions L1, L2, L3... (from sealing face, starting from top) Minimum 20 mm (depending on the selection of the float and the contacts) AC 230 V; 100 VA; 1.5 A With series resistance DC 230 V; 60 W; 1.5 A AC < 50 V; 40 VA; 150 ma DC < 75 V; 20 W; 150 ma With NAMUR circuit per DIN EN AC < 50 V; 40 VA; 7 ma DC < 75 V; 20 W; 7 ma Mounting position Vertical ±30 Ingress protection up to IP66 or IP68 per IEC/EN (depending on version) Page 8 of 20 KSR data sheet LM /2017

9 Float switch, miniature design Models FLS-ME, FLS-MB Process connection, guide tube 8 mm and float from stainless steel (316Ti) cable Mounting thread and connection cable Mounting thread and connection housing SW 22 or SW 27 L 3 =... L 2 =... Float Ø Electrical connection Process connection Guide tube diameter Guide tube length L Float Model FLS-ME cable PVC Silicone PUR Mounting thread upwards G 1/8" 8 mm 500 mm Model FLS-MB housing: Aluminium mm Coupler connector Mounting thread downwards G 3/4" or G 1" Material: Stainless steel (option: Buna (NBR), titanium, PP) Float diameter from mm Float selection depending on guide tube diameter and process conditions (see page 17, 18, 19) Temperature range PVC/PUR cable C Silicone cable C Observe the permissible temperature range of the float. Switching function Ma. number of contacts 3 NO or NC, or 1 SPDT Switch position Distance between switch points Switching power Normally open, normally closed Change-over Buna (NBR), PP C Stainless steel, titanium C Observe the permissible temperature range of the float. Alternatively normally open (NO), normally closed (NC) or change-over (SPDT) contact - on rising level Dimensions L1, L2, L3... (from sealing face, starting from top) Minimum 20 mm (depending on the selection of the float and the contacts) AC < 50 V; 10 VA; 0.5 A DC < 75 V; 5 W; 0.25 A AC < 50 V; 5 VA; 0.25 A DC < 75 V; 2.5 W; 0.15 A Mounting position Vertical ±30 Ingress protection up to IP66 or IP68 per IEC/EN (depending on version) KSR data sheet LM /2017 Page 9 of 20

10 Float switch, miniature design Models FLS-MA, FLS-MF Process connection, guide tube 8 mm and float from stainless steel (316Ti) cable Mounting thread and connection cable Mounting thread and connection housing SW 22 or SW % display L 3 =... L 2 =... Float Ø Electrical connection Process connection Guide tube diameter Guide tube length L Float Model FLS-MA cable PVC Silicone PUR Mounting thread upwards G 1/8" 8 mm 500 mm Model FLS-MF housing: Aluminium mm Coupler connector Mounting thread downwards G 3/4" or G 1" Material: Stainless steel (option: Buna (NBR), titanium, PP) Float diameter from mm Float selection depending on guide tube diameter and process conditions (see page 17, 18, 19) Temperature range PVC/PUR cable C Silicone cable C Observe the permissible temperature range of the float. Switching function Ma. number of contacts 3 NO or NC Switch position Distance between switch points Switching power Normally open, normally closed Alternatively normally open (NO) or normally closed (NC) - on rising level Buna (NBR), PP C Stainless steel, titanium C Observe the permissible temperature range of the float. Dimensions L1, L2, L3... (from sealing face, starting from top) Minimum 20 mm (depending on the selection of the float and the contacts) AC 230 V; 10 VA; 0.5 A DC 230 V; 5 W; 0.25 A Mounting position Vertical ±30 Ingress protection up to IP66 or IP68 per IEC/EN (depending on version) Page 10 of 20 KSR data sheet LM /2017

11 Float switch, plastic version Models FLS-PA, FLS-PF Process connection, guide tube and float from PVC, PP or PVDF cable Mounting thread and connection cable Mounting thread Flange SW 27 or SW 32 Float Ø Electrical connection Process connection Guide tube diameter Guide tube length L Float Model FLS-PF cable PVC PUR Mounting thread upwards G 3/8" Model FLS-PA housing polypropylene mm housing polyester mm Coupler connector Mounting thread downwards G 1 1/2" or G 2" Flange DIN DN DN 200, PN 6... PN 100 DIN EN DN DN 200, PN 6... PN 100 ANSI 2"... 8", Class mm / 16 mm / 20 mm 500 mm for guide tube diameter 12 mm 3,000 mm for guide tube diameter 16 mm 5,000 mm for guide tube diameter 20 mm Material: PVC, PP or PVDF Float diameter from mm Float selection depending on guide tube diameter and process conditions (see page 17, 18, 19) Temperature range For float material PVC C For float material PP C For float material PVDF C Switching function Alternatively normally open (NO), normally closed (NC) or change-over (SPDT) contact - on rising level Ma. number of contacts 6 NO or NC, or 4 SPDT Switch position Dimensions L1, L2, L3... (from sealing face, starting from top) Distance between switch points Minimum 20 mm (depending on the selection of the float and the contacts) Switching power Normally open, normally closed Change-over AC 230 V; 100 VA; 1 A DC 230 V; 50 W; 0.5 A AC 230 V; 40 VA; 1 A DC 230 V; 20 W; 0.5 A Mounting position Vertical ±30 Ingress protection up to IP66 or IP68 per IEC/EN (depending on version) KSR data sheet LM /2017 Page 11 of 20

12 Float switch, pharmaceutical version Models FLS-HA, FLS-HE Process connection, guide tube and float from stainless steel Version with cable cable SW 15 G 3/8" Impulse contact U L 2 =... L 3 =... L 2 =... U U Impulse contact Impulse contact B A Electrical connection Model FLS-HA housing: Stainless steel Model FLS-HE cable PVC Silicone PUR Process connection Mounting thread upwards G 3/8" Mounting flange per DIN or ANSI Threaded connection per DIN Clamp pipe connection per DIN Ingold sanitary fitting Guide tube diameter 17.2 mm (stainless steel or , surface ground and polished) Guide tube length L 5,000 mm Float Material: Stainless steel or Float diameter from mm Float selection depending on guide tube diameter and process conditions (see page 17, 18, 19) Temperature range PVC/PUR cable C Silicone cable C Switching function Alternatively normally open (NO), normally closed (NC) or change-over (SPDT) contact - on rising level Ma. number of contacts 6 NO or NC, or 4 SPDT 6 NO or NC, or 4 SPDT for PVC and PUR cable 3 NO or NC, or 2 SPDT for silicone cable Switch position Dimensions L1, L2, L3... (from sealing face, starting from top) Distance between switch points Minimum 20 mm (depending on the selection of the float and the contacts) Switching power Normally open, normally closed Change-over AC 230 V; 100 VA; 1 A DC 230 V; 50 W; 0.5 A AC 230 V; 40 VA; 1 A DC 230 V; 20 W; 0.5 A Mounting position Vertical ±30 Ingress protection up to IP66 or IP68 per IEC/EN (depending on version) AC < 50 V; 100 VA; 1 A DC < 50 V; 50 W; 0.5 A AC < 50 V; 40 VA; 1 A DC < 50 V; 20 W; 0.5 A Page 12 of 20 KSR data sheet LM /2017

13 Float switch, sterile version (3-A) Model FLS-HA3 Process connection, guide tube and float from stainless steel With separate float bracket With welded tube end 45 housing Ø F = L = Electrical connection Process connection Guide tube diameter Guide tube length L Model FLS-HA3 with separate float bracket housing: stainless steel Model FLS-HA3 with welded pipe connection Clamp pipe connection ISO 2852, DN 32 DN 100 or 1.5" 4" Clamp pipe connection DIN 32676, DN 32 DN 100 or 1.5" 4" Aseptic mounting thread downwards DIN , DN DN 100 or 1.5"... 4" Aseptic liner DIN , DN DN 100 or 1.5"... 4" Aseptic flange connection DIN (DN DN 50 or 1.5"... 2" Aseptic clamp connection DIN , DN DN 100 or 1.5"... 4" VARIVENT (form F,N and G) BioConnect threaded connection, DN 32 DN 100 or 1,5" 2" BioConnect flange connection, DN 32 DN 100 or 1.5" 2" BioConnect clamp connection, DN 32 DN 100 or 1.5" 4" 12 mm / 14 mm / 17.2 mm (stainless steel or , surface ground or polished, R a < 0.8 µm) 5,000 mm Float Material: Stainless steel or Float diameter: mm Float selection depending on guide tube diameter and process conditions (see page 17, 18, 19) Temperature range Process temperature Ambient temperature Switching function Ma. number of contacts Switch position Distance between switch points Switching power Normally open, normally closed Change-over C C Alternatively normally open (NO), normally closed (NC) or change-over (SPDT) contact - on rising level 3 NO or NC, or 3 SPDT Dimensions L1, L2, L3... (from sealing face, starting from top) Minimum 50 mm (depending on the selection of the float and the contacts) AC 230 V; 100 VA; 1 A DC 230 V; 50 W; 0.5 A AC 230 V; 40 VA; 1 A DC 230 V; 20 W; 0.5 A Mounting position Vertical ±30 Ingress protection up to IP66 or IP68 per IEC/EN (depending on version) KSR data sheet LM /2017 Page 13 of 20

14 Options Model Angled version Adjustable guide tube ECTFE coating Special flange from polyamide or brass FLS-SE FLS-SF FLS-SA FLS-SB FLS-SBI (60) FLS-ME FLS-MF FLS-MA FLS-MB FLS-PF FLS-PA Food version Angled version, material: Metal housing housing cable W =... G 3/8" SW 22 L =... M M U B A Angled version, material: Plastic W =... W =... G 3/8" SW 22 G 3/8" L =... SW 22 SW 22 U U L =... B A B A Page 14 of 20 KSR data sheet LM /2017

15 Version with adjustable guide tube housing housing guide tube adjustable by loosening union nut cable SW 27 guide tube adjustable by loosening union nut SW 27 Version with ECTFE coating housing Special flange from polyamide or brass Coupler connector Coupler connector A KB L = L =... 5 L =... L =... L =... L =... guide tube adjustable by loosening union nut SW G 1/2" KSR data sheet LM /2017 Page 15 of 20

16 Food version for float switch Model FLS-S Process connection, guide tube and float from stainless steel Threaded pipe connection per DIN Clamp pipe connection per DIN M housing U Threaded pipe connection B A Threaded pipe connection Clamp pipe connection Electrical connection housing: Aluminium mm, with 1 contact Aluminium mm, 2 or more contacts Option: Polypropylene, polyester, stainless steel Process connection Threaded pipe connection per DIN 11851, downwards DN DN 150 Clamp pipe connection per DIN 32676, DN 25 DN 100 or 1" 4" Guide tube diameter 12 mm / 14 mm / 18 mm Guide tube length L Guide tube diameter 12 mm / 14 mm: 3,000 mm Guide tube diameter 18 mm: 6,000 mm Float Material stainless steel or , option electropolished Float diameter from mm Float selection depending on guide tube diameter and process conditions (see page 17, 18, 19) Temperature range Process temperature C Switching function Alternatively normally open (NO), normally closed (NC) or change-over (SPDT) contact - on rising level Ma. number of contacts 3 NO or NC, or 3 SPDT Switch position Dimensions L1, L2, L3... (from sealing face, starting from top) Distance between switch points Minimum 50 mm (depending on the selection of the float and the contacts) Switching power Normally open, normally closed Change-over AC 230 V; 100 VA; 1 A DC 230 V; 50 W; 0.5 A AC 230 V; 40 VA; 1 A DC 230 V; 20 W; 0.5 A Mounting position Vertical ±30 Ingress protection up to IP66 or IP68 per IEC/EN (depending on version) Page 16 of 20 KSR data sheet LM /2017

17 Spherical float Ø C D E B D = Limit density of the medium, immersed float volume 85 % Ø A E = Nominal density of the medium, immersed float volume 50 % Material Version Suits guide tube Ø in mm Stainless steel Ø A in mm B in mm Ø C in mm Ma. operating pressure in bar Ma. operating temp. in C Limit density 85 % in kg/m 3 Order no. V29A/ V52A V62A V83A V80A V98A V105A V120A Titanium T29A T52A T52A/ T62A T83A T80A T98A T105A T120A Stainless steel ECTFE coated VEC53A Depending on medium VEC63A Depending on medium VEC84A Depending on medium VEC81A Depending on medium VEC99A Depending on medium VEC106A Depending on medium VEC121A Depending on medium Note: The optimum float will be selected after a feasibility test carried out by KSR. KSR data sheet LM /2017 Page 17 of 20

18 Cylindrical float Ø C D E B D = Limit density of the medium, immersed float volume 85 % Ø A E = Nominal density of the medium, immersed float volume 50 % Material Version Suits guide Ø A B Ø C Ma. operating Ma. Limit Order tube Ø in mm in mm in mm in mm pressure in bar operating temp. in C density 85 % no. in kg/m 3 Stainless steel V27A V44A Titanium T44A Buna (NBR) B20A B23A B25A B30A B40A B40A/ B50A PVC P44A P55A P55A/ P55A/ P80A Polypropylene PP27A PP35A PP44A PP55A PP55A/ PP80A PVDF PF44A PF55A PF55A/ ,140 - PF80A Stainless steel E-CTFE coated VEC45A Depending on medium Note: The optimum float will be selected after a feasibility test carried out by KSR. Page 18 of 20 KSR data sheet LM /2017

19 Hygienic float Ø C B Ø A Material Model Version Suits guide tube Ø in mm Stainless steel V80/88/ A34/3A/35, aial V50/55/17/ A34/3A/35 V55/70/A34/ 3A/35 aial Ø A in mm B in mm Ø C in mm Ma. operating pressure in bar Ma. operating temp. in C Limit density 85 % in kg/m 3 Order no. V80A V50A , V55A Note: The optimum float will be selected after a feasibility test carried out by KSR. KSR data sheet LM /2017 Page 19 of 20

20 Contact protection measures The reed contacts should be protected against any voltage or current spikes that might occur. Depending on the different load types different protective circuits are used. Model KFD2-ER-1.6 RC element Contact protection relays Contacts Input Power supply Approval number Order no. KFD2-ER change-over AC 250 V, 2 A 2 contacts DC V KFD2-SR2-E2.W 2 change-over AC 253 V, 2 A 2 contacts DC V II 1 GD EE ia IIC PTB 02 ATEX KFA6-ER change-over AC 250 V, 2 A 2 contacts AC 230 V KFA6-SR2-E2.W 2 change-over AC 253 V, 2 A 2 contacts AC 230 V II 1 GD EE ia IIC PTB 02 ATEX RC element Capacitance Resistance Voltage Order no. B3/ µf 470 Ohm AC 115 V B3/ µf 1,000 Ohm AC 230 V Inductive load AC voltage Inductive load DC voltage Capacitive load S1 AC V R S1 + DC V + DC 24 V S1 R S C 1 C PLC Ordering information To order the described product the order number (if available) is sufficient. Alternatively: Model / Version / Electrical connection / Process connection / Guide tube diameter / Guide tube length L / Information about contact (switching function, number of switch points, switch position) / Process specifications (operating temperature and pressure, limit density) / Options 01/2010 KSR KUEBLER Niveau-Messtechnik AG, all rights reserved. The specifications given in this document represent the state of engineering at the time of publishing. We reserve the right to make modifications to the specifications and materials. Page 20 of 20 KSR data sheet LM / /2017 EN A division of the WIKA group KSR KUEBLER Niveau-Messtechnik AG Heinrich-Kuebler-Platz Zwingenberg/Germany Tel /87-0 Fa /87-99 info@ksr-kuebler.com