PERFECT ISOLATION BY MAGNET COUPLING COVERING HIGH TEMP., HIGH PRESS., AND VACUUM APPLICATIONS PRESSURE TIGHT FLAMEPROOF FOR HYDROGEN ATMOSPHERE READY SPRING BALANCED DISPLACER TYPE FS- Series LEVEL SWITCH OUTLINE FS- is a spring balanced displacer type level switch. The pressurized part and electric part are perfectly isolated by magnet coupling system to offer much more safety and durability compared to other mechanical sealing types. FS- can meet tough application with high temperature and high pressure. FEATURES Wide selection range for temperature and pressure. Variety of material selection for displacer, spring and chambers for suitable anticorrosive capability. Perfect isolation between pressurized part and electric compartment by magnetic coupling for high reliability and safety. In addition to watertight construction, pressure tight and intrinsically safe versions are ready to meet hazardous application. Especially, pressure tight flameproof suitable for Hydrogen atmospher (Ex diic T) is available which eliminates the necessity of safety barriers. MAIN APPLICATIONS Fuel oil tank level control Process control for petrochemical plants Water treatment plants Oil rig's platform Other liquid level control
FS- DISPLACER, LEVEL SWITCH STANDARD SPECIFICATION Detection theory Measuring object Density Viscosity : By spring balanced displacer : All types of liquids (Liquid level or liquid interface) : For level detection.5 g/cm or more For liquid interface detection* Difference of. g/cm or more *Number of points for alarm: point : Max. mpa s. Liquid without sticking, crystallization, or freezing Accuracy : ± (Density. g/cm ) (For level detection with water (AMB, ATM)) Repeatability : ±5 (Density. g/cm ) (For level detection with water (AMB, ATM)) Reset span : Max. (Density.g/cm ) Exceeds depending on switch types, density and number of alarm points. Pressure range : Full vacuum to.9 MPa Temp. Range : to + C (Upto -9 C on request. Consult factory for details.) Enclosure : Watertight IP5 Equ. FS- W Pressure tight flameproof Ex d IIC T FS- EX Intrinsically safe EX ia IIC T FS- S Amb. Temp. : to +8 C to +55 C for pressure tight flameproof to + C for Intrinsically safe versions Type of process connection and flange sizes : : Standard : Optionally available : Not available Tank top, welding Internal chamber type Standard Material: (Refer to MODEL for special material availability) Liquid wetting part Displacer SUS, SUS, SUSL Spring SUS Rod SUS Wire SUS Chamber Carbon steel, SUS, SUS, SUSL Vapor contacting part Lead pipe SUS, SUS Top flange Carbon steel, SUS, SUS SUSL Non-contacting part Electric housing Aluminum die-casting Alarm contact :,, or points Limitation based on switch type and temperature range are applicable, Refer to MODEL for further details. Type of contact Contact capacity Cable entry: : Standard SPDT Microswitch Options SPDT (Equ. to DPDT action) Hermetical sealed Microswitch : Refer to Model Model Classification Cable entry Remarks FS- W Watertight G/ FS- EX Ex d IIC T G/ Cable dia. ø9 to G/ Cable dia. ø to FS- S Ex ia IIC T G/ NPT thread etc. are applicable with adapter. Size Density <.8 g/cm Density.8 g/cm 8 (") (") 5 (5") 5 (") Tank top, insertion internal chamber type Size Density <.8 g/cm Density.8 g/cm 8 (") (") 5 (5") 5 (") Tank side, external chamber type Size Density <.8 g/cm Density.8 g/cm 8 (") (") 5 (5") 5 (") Terminal Painting Colour : FS- W, E X, S : Up to 5 C - M.5 screw Over 5 C - M screw : For liquid temp. upto 5 C Polyurethan resin painting For liquid temp. more than 5 C Silicone resin painting : Silver (standard) INSTRUCTION FOR USE The FS level switch with a spring operates in response to changes in the buoyancy of the displacer. Because alarms are set at a given operating density and temperature, if the density or temperature changes, the alarm level may shift or the alarm may not be issued. Do not use this switch in tanks with a mixer or other similar apparatus. TOKYO KEISO CO., LTD. TG-L7-E
FS- DISPLACER, LEVEL SWITCH ALARM POINT The following figure shows alarm points that can be set under conditions of room temperature, atmospheric pressure, and a liquid equivalent to water. The alarm points depend on the design. INTRINSICALLY SAFE RELAY (EBC) Intrinsically safe relay is to be inserted into the contact loop of FS- S type level switch. to points use relays are available. Select suitable IS relay considering the total number of contacts. Standard specification Min.5 Min.5 Min. 5 Explosion protection Rated operating voltage Rated operating current Installation location Contact configuration Relay output (Resistance load) Contact allowable power (Resistance load) Insulation resistance Withstand voltage Intrinsically safe Ex ia IIC V DC ±% ma DC ±% Non-hazardous area a contact 5 V AC, A V DC, A 75 VA AC 7 W DC 5 DC V at MΩ 5 V AC ( min.) For point alarm For points alarm (H or L) (H-H, H-L or L-L) Model code Description EBC- Output type R R Model Relay output No. of contact Power supply A D point use points use points use V to V AC, 5/ Hz V DC Min.5 Min.55 EBC-R EBC-R, R 5 77.5 Min. 5 Min. 5 Min. 75 5 Min. 5 Min. () terminal MIN.ø MAX. MAX. MIN.5. For points alarm For points alarm Terminal screw size : M (H-H-L or H-L-L) (H-H-L-L) EBC Dimensions CAUTIONS FOR PIPING In case of the frameproof type (FS- EX) and intrinsically safe type (FS- S) to be used in Japan, the cable wiring is to be conducted in accordance with the enforcement regulations of "Cable Wiring" system in FLAMEPROOF TYPE CABLE WIRING as specified in "Industrial Safety and Health Law". For details, refer to "USER'S GUIDELINES for Electrical Installation for Explosive Gas Atmospheres in General Industry" edited by MINISTRY OF HEALTH, LABOUR AND WELFARE RESERCH INSTITUTE OF INDUSTRIAL SAFETY JAPAN. FS- EX type pressure tight flameproof version is certified for Ex d II C T classification under the condition of using our designated pressure tight cable glands which are delivered together with level switches. They are to be properly installed. TG-L7-E TOKYO KEISO CO., LTD.
FS- DISPLACER, LEVEL SWITCH MODEL SWITCH TYPE, TEMP, CLASS C O DE 5 7 8 A B C D E F G H I J K L M N LIQUID TEMP ( C) ON/OFF MECHANISM TYPE CONTACT TYPE SWITCH MODEL SWITCH SUPPLER CONTACT CAPACITY 5~5 VX-5-A 5~ V5-AT SPDT ~8 GENERAL T-GV 8~ PURPOSE OMRON 5~5 VX-5-A 5~ V5-AT SPDT ~8 EARTHQUAKE PROOF T-GV 8~ (G) TYPE 5~5 5~8 8~5 SPDT SM 5~5 SPDT SSMA 5~ HERMETIC (GOLD PLATED) SEAL Azbil 5~5 TYPE 5~8 8~5 SPDT SM 5~5 SPDT 5~ (GOLD PLATED) SSMA 5~5 VX-5-A SPDT 5~ EARTHQUAKE V5-AT PROOF 5~5 (G) TYPE VX-5-A SPDT 5~ V5-AT OMRON SPECIAL AC5V, 5A DC5V,.A AC5V, A DC5V,.A AC5V, 5A DC5V,.A AC5V, A DC5V,.A AC5V, 5A DC5V,.A DCV, 5A AC5V,.A DCV,.A AC5V, 5A DC5V,.A DCV, 5A AC5V,.A DCV,.A AC5V, 5A DC5V,.A NO. OF COOLING FIN *: For applications with lower temperature than C, an extension unit will be added and the external dimension will be different from the standard versions. Consult factory for details. *: Applicable alarm of interface detection is point. *: C or less are points. PRESSURE RATING PRESSURE RATING K(5#) Class K(#) Class K(#) Class HIGH PRESS. APPLICATION MINIMUM APPLICABLE LOAD MAX POSSIBLE ALARM ONTACT * * ENCLOSURE W EX S L Switch Type, Enclousure FS- ENCLOSURE WATERTIGHT (IP5EQU.) PRESSURE TIGHT EX-PROOF (Ex d IIC T) INTRINSICALLY SAFE EX-PROOF (Ex ia IIC T) NUMBERS OF ALARM Refer to MODEL. NUMBER OF ALARM POINT POINTS POINTS POINTS LEAD PIPE MATERIAL LEAD PIPE MATERIAL SUS SUS 7 DISPLACER MATERIAL DISPLACER MATERIAL SUS (Standard) SUS SUSL 5 TOP FLANGE MATERIAL S L TOP FLANGE MATERIAL CARBON STEEL SUS SUS SUSL 8 SPRING MATERIAL SPRING MATERIAL SUS (Up to C) * * Available special material UNS N7 (Equ. to HASTELLOY C), INCONEL (INCONEL is selected for applications more than C temperature.) TOKYO KEISO CO., LTD. TG-L7-E
FS- DISPLACER, LEVEL SWITCH Alarm Contact Material Connection Chanber 5 7 8 9 UPPER GASKET MATERIAL UPPER GASKET MATERIAL CUSTOMER'S SCOPE (CHAMBER NOT PROVIDED) VORTEX GASKET (SUS) VORTEX GASKET (SUS) Bolts, nuts and gaskets for process connection are to be supplied by the customer. EXTERNAL CHAMBER CONNECTION EXTERNAL CHAMBER CONNECTION CHAMBER NOT PROVIDED "SW Rc "FLANGE 9 TOP FLANGE SIE TOP FLANGE SIE 8(") (") 5 5(5") 5(") CAMBER MATERIAL CHAMBER MATERIAL CHAMBER NOT PROVIDED S Carbon steel SUS SUS L SUSL TOP FLANGE SIE RATING 5 TOP FLANGE SIE RATING JISKFF JISKRF JPI#5 ANSI#5 JISKRF JPI# ANSI# CHAMBER CONSTRUTION CHAMBER CONTRUTION NOT PROVIDED INTERNAL, WELDING TYPE(FIG.A) INTERNAL, INSERSION TYPE(FIG.B) EXTERNAL, SIDE~SIDE (FIG.C) EXTERNAL, SIDE~BOTTOM (FIG.D) TG-L7-E TOKYO KEISO CO., LTD. 5
FS- DISPLACER, LEVEL SWITCH DIMENSIONS. DETECTING PART FS-W FS-W FS-W FS-W 7 7 7 7 G/ 7 G/ 7 G/ 77 FS-EX FS-EX FS-EX FS-EX MAX.7 MAX.7 MAX.7 7 MAX.7 7 7 7 77 7 7 77 G/ 77 TOKYO KEISO CO., LTD. TG-L7-E
FS- DISPLACER, LEVEL SWITCH. CHAMBERS Internal, welding type Fig.A Internal, Insersion type Fig.B " flange " flange L: Min.5 L : Min. L: Min.5 L : Min. External, Side to Side Fig.C External, Side to Bottom Fig.D L L 5 (standard) L: Min. L : Min. L L: Min. L : Min.5 L L L L " Alarm level Alarm level " flange " flange 5 (standard) Alarm level Alarm level L. DISPLACER A standard displacer for detecting the level of liquid equivalent to water at normal temperature (ρ =. g/cm ). Dimension may differ for lower density liquid, interface detection and liquid temperature. TG-L7-E TOKYO KEISO CO., LTD. 7
FS- DISPLACER, LEVEL SWITCH ORDERING INFORMATION ALARM POINT, SETTING, INSTRUCTION TAG NO. MODEL Q'TY LIQUID NAME DENSITY FS- - - - - Please notify the follow for order / inquiry : For liquid level detection Gas: Liquid: For two liquids interface detection Upper: Lower: For liquid level detection Gas: Liquid: For two liquids interface detection Upper: Lower: (Difference of at least. g/cm required. Only point for alarm.) PRESS. TEMP Nor. Nor. Max. Max. MPa C ( ( ) ) point alarm points alarm points alarm points alarm h h High Low h h h High Low h High Low h High h High Low Limitation of alarm setting point is applicable due to technical reason. Refer to Page for details. Not required Internal welding type Internal insertion type External, Side to Side External, Side to Bottom h h h h Low h h h h High h High h Low h Low CHAMBER h : : : : OTHER SPECIAL FEATURES AND INSTRUCTION * Specification is subject to change without notice. Head Office : Shiba Toho Building, 7 Shibakoen, Minato-ku, Tokyo 5 8558 Tel : +8-5 (KEY) ; Fax : +8-9 e-mail : overseas.sales@tokyokeiso.co.jp ; URL : http://www.tokyokeiso.co.jp 8 TG-L7-E