General Specifications Differential PH/ORP-sensor

GeneralSpecificationsModel FU20-FTSDifferential pH/ORP-sensorOverviewThe FU20-FTS is the newest development in pH sensortechnology available from Yokogawa. This sensor combines themeasuring technology of our 12 mm differential sensor and theruggedness of the appreciated wide body FU20 design in oneproduct.Like our competitors Yokogawa has used silver/silverchloridereference cells in its products. In a wide range of applicationsthis solution has proven very effective and remains a costeffective solution.FeaturesIn differential pH measurment solution provided by Yokogawabelow features deliver benefits in customers application: No junction No open connection form the process to the inside of sensor No possibility of poisoning reference element No use of diaphragm hence no issues of plugging or coatingof junction diaphragm No outflow of electrolyte so no depletion issuesLifetime of the conventional sensors is highly dependent ofregular maintenance of the pH probes. Regular cleaning isrequired to eliminate reference poisoning. 70-80% of industrialusers will fully benefit from using differential sensor technology intheir high temperature and pressure applications.Example applications: pH monitoring in brine solutions applied in chemical industry The bleaching process in pulp and paper SO2 scrubber applications Tail gas, Quench Tower with sulfidesGS 12B06J03-05E-E2nd Edition

2Cation Reference Differential pH/ORPElectrode, FU20-FTSRegulatory standardsThis version encompasses the benefits of the cation referenceinto a PVDF rugged body with a ¾” NPT. The wide body sensor(26mm diameter) holds four separate measuring elements in oneunbreakable and chemical resistant PVDF body. The FU20-FTSis targeted for those applications where the cation differentialreference is the best solution, but need a more durable bodythen a 12mm glass.SpecificationMeasuring elements:::::Na-glass electrodepH-glass electrodeSilver chloride referenceSolid platinum electrodePt1000 temperature sensor.Wetted partsSensor bodyEarthing pinMeasuring SensorLE glass tubeO-ringBody insert::::::PVDF-(GF25 TZ4)Solid PlatinumL-glass, pNa-glassAR-glassVitonPVDFFunctional specifications (at 25 C)Isothermal point: pH7, pNa 0Reference system: Salt sensitive, Ag/AgCl in 1M KClGlass impedances: Nominal: 750 MΩLiquid outlet: Non-flow no junctionTemperature element: Pt1000 to IEC 751Asymmetry potential: 0 15 mVSlope: 90% in pH 2-12 with pH pNa 2Dynamic specificationsResponse time pHResponse time temp.Stabilization time pH: t90 15 sec. (for 7 to 4 pH step): t90 120 sec. (for 10 C step): 2 min. (for 0.02 pH unit during 10sec.)Operating rangepH : 2 to 5Temp. (ºC): 10 µS/cm ting rangeNote: T he pH operating range at room temperature is 2-14 pH,but at high temperatures or range outside 2-12 pH thelifetime will be seriously shortened.GS 12B06J03-05E-EWEEEIECExApplying standardsCertificate no.: Directive 2002/96/EC: IEC 60079-0: 2007IEC 60079-11: 2006IEC 60079-26: 2006: IECEx DEK 11.0064X Ex ia IIC T3.T6 GaNote: W hen the sensor has been connected to none intrinsicallysafe equipment which exceeds the restrictions regardingthe sensor input circuit (see electrical data), the restrictionsregarding the sensor input ( see electrical data) the sensoris not suitable anymore for intrinsically safe use.: -1500 to 1500 mV: 0 to 105 ºC (14 to 221 ºF): p(bar)p(bar) 100: Decision 768/2008/EC: Directive 94/9/EC,as amended byRegulation (EC) no. 1882/2003Certificate no.: DEKRA 11ATEX0014XII 1 G Ex ia IC T3.T6 GaElectrical data: For sensor input circuit connected toa certified intrinsically safe circuit withthe following maximum values:Ui 18 V; Ii 170 mA; Pi 0.4 W;Li 0 mH; Ci 0 nF (VP type) orCertified intrinsically safe YokogawapH/ORP transmitter Model FLXA21series or Model FLXA202 series.Special conditions (X) : T6 for Tamb. -40 C to 40 CT4 and T5 for Tamb. -40 C to 55 C T3 forTam. -40 C to 105 C: Electrostatic charges on the sensorenclosure shall be avoided.-ROHS II: Directive 2011/65/EUApplying article category 9; Industrialmonitoring and control instruments;ion selective electrodes- Pressure: Directive 97/23/EC,as amended byRegulation (EC) no. 1882/2003Applying article: 3.3 (Sound Engineering Practice): Damaging the screw thread of thesensor might influence the maximumprocess pressure.: Sensor contains glass parts which ifbroken can cause cutting injuries.CE- ATEX

3Model and suffix codeModelSuffix CodeOption code DescriptionFU20Wide Body sensorCable length -033 m cable-055 m cableNot available-1010 m cablefor model FTS-2020 m cable-VPNo Cable; Vario Pin connectorTemperature-T1Pt1000Sensor-T2*Pt100 (not available for FTS)Model-NPTRyton, Tapered thread, Dome Shaped-FSM Ryton, Tapered thread, Flat SurfaceModel for these products refer to GS12B06J03-02E-E-FTDPVDF, Tapered thread, Dome Shaped-FTS PVDF, Tapered thread, Salt sensitive membraneOptions/HCNFComplete Hastelloy cleaning system/FPSAdapter F*40 from PPO/NSS1” NPT, SS316/NTI1” NPT, Titanium/BSS1” BSP, SS316/BTI1” BSP, Titanium* Only internal in Model CodeDimensional drawingDimensions in mm (inches)ø22 (0.87")TYPE: VP6 (NPT/FSM)VP8 (FTS)¾" - 14 NPTø25.9FU20-VP-¾" - 14 NPT19.6 (0.78")19.6 (0.78")10 (0.39")137.5 (5.4")204 (8.03")Fig 1. Dimensional drawing FU20-FTSConnection scheme for variopin optionspinABCDEFGHVP6pHRefpH GuardLE/ORPTempTemp-VP8pHpH guardRefRef GuardTempTempLE/ORP-Fig 2. P in assignment scheme VP6 and VP8compassionFEGDHCABIndication grooveFig 3. Connections FU20-FTSGS 12B06J03-05E-E

4Installation optionsThe differential FU20 sensor can be implemented in processapplications using either :FU20-VP-FU20Horizontal planeTeflonTapeFU20-VP-FU20Fig 4. D irect process connection using the ¾”NPT thread using available adapters.GS 12B06J03-05E-EFig 5. T -piece installation using 3/4” NPTThread

1” NPT orISO 7/1-R199.0 (3.9”)25.0 (1”)ø30.0 (1.18”)20.0 (0.8”)/FPS5.0 (0.2”)/NSS, /NTI, /BSP, /BTIø35.5 (1.4”)5.0 (0.2”)10.0 (0.4”)5ø36.0 (1.42”)ø39.0 (1.54”)Figure 6. D imensions 1” FU20-FTS adapter Stainless Steel & Titanium and FU20-FTS adapter forFF40, FS40 and FD40 fittingsINØ 90Ø 90(3.54")(3.54")FF20-P22FF20-F2260 (2.36")55 (2.16")Ø71 (2.80")36,5 (1.43")OUTØ8 (0.31")Ø 92(3.62")1/2" NPTINØ 90(3.54")215 3 (8.46" 0.12")Fig 7. I nstallation example FU20-FTS in FF20PP/PVDFflow fitting PP/PVDF1/2" NPT70.3 [2.77"] 17.5 [0.69"]255 [10.04"]FF20-S22½" NPT inlet 48 [1.89"] 76 [2.99]175 [6.89"]3x5[50 9.35"]Fig 8. I nstallation example FU20-FTS in FF20SSflow fitting SS52 [2.05"]71 [2.80"]½"NPTOutlet½" NPT inlet 48 [1.89"]GS 76 [2.99"]FF20-S33175 [6.89"]17.5 [0.69"]1/2" NPT1/2" NPTIN67 [2.64"]55 (2.16")Ø71 (2.80")½"NPTOutlet67 [2.64"]60 (2.36")Ø71 (2.80")71 [2.80"]205 [8.07"]60 (2.36")276 (10.82")OUTØ 8 (0,31")276(10.82")36,5(1.43")OUT55 (2.16")1/2" NPTØ 8 (0,31")36,5 (1.43")1/2" NPTFF20-P33FF20-F3352 [2.05"]SSPP/PVDF12B06J03-05E-E

6NutO-ringAdapter( /FPS or K1523DD)FittingFU20O-ringAdapter( /FPS )FU20O-ringFig 9. I nstallation examples for the FU20 inFD40GS 12B06J03-05E-EFig 10. Installation examples for the FF40

7FU20PR10-tubing5Fig 11. I nstallation in PR10 retractable fittingFor detailed information refer to the instruction manual coming with the retractable fitting.GS 12B06J03-05E-E

YOKOGAWA HEADQUARTERS9-32, Nakacho 2-chome, MusashinoshiTokyo 180JapanTel. (81)-422-52-5535Fax (81)-422-55-1202www.yokogawa.comYOKOGAWA CORPORATION OF AMERICA2 Dart RoadNewnan GA 30265United StatesTel. (1)-770-253-7000Fax (1)-770-251-2088www.yokogawa.com/usYOKOGAWA EUROPE B.V.Euroweg 23825 HD AmersfoortThe NetherlandsTel. 31-88-4641 000Fax 31-88-4641 111www.yokogawa.com/euYOKOGAWA ELECTRIC ASIA Pte. Ltd.5 Bedok South RoadSingapore 469270SingaporeTel. (65)-241-9933Fax (65)-241-2606www.yokogawa.com/sgGS 12B06J03-05E-ESubject to change without noticeCopyright Yokogawa has an extensive sales anddistribution network.Please refer to the European website(www.yokogawa.com/eu) to contact yournearest representative.Printed in The Netherlands, 02-1706 (G) I

technology available from Yokogawa. This sensor combines the measuring technology of our 12 mm differential sensor and the ruggedness of the appreciated wide body FU20 design in one product. Like our competitors Yokogawa has used silver/silverchloride referen