WIXLIB

GeneralSpecificationsModel PH20, FU20 and FU24analog 4 in 1 pH sensorA family of the wide body sensor is available for application in awide variety of processes. The sensors share the same valuablefeatures: Long life saturated Ag/AgCl reference system. PTFE reference diaphragm to prevent fouling and reducemeasurement error. Double junction combined with ion-trap to prolong thelife of the reference probe, even in chemically unfavorableenvironments. Integral Pt1000 element for accurate temperaturemeasurements. Platinum ORP/LE electrode for accurate simultaneous pH- andORP measurements. Polymerized electrolyte to extend the sensors life time. Versatile in-line, immersion or off-line installation.For general purpose applications: FU20The FU20 combination sensor shows how Yokogawa appliesthe motto “Simply the Best” to sensor technology. The widebody sensors (26 mm diameter) hold four separate measuringelements in one unbreakable and chemical resistant PPS 40GFbody. Installation is simple with the integrated industrial 3/4”tapered thread. Temperature fluctuations are compensated toextend the sensor life. The FU20 is targeted at those applicationswhere simplicity will result in accurate and reliable pH- orredox measurements. This means that in 90% of the knownapplications, this sensor will be an excellent choice.In general purpose applications running at constant pressureand temperature the FU20 sensor has proven it use for years.In the standard configuration the wide body sensors hold fourseparate measuring elements in one unbreakable body made ofPPS 40GF. This sensor offers a cost effective and rigid solutionto the users. In strong acidic applications and in In cases wherethe chemical compatibility of PPS does not address the processneeds, the FTD version made in a PVDF body offers the requiredsolution. The additional chemical compatibility offered by thePVDF version addresses the needs in several applications.For more difficult applications: FU24The FU24 is also made with a chemical resistant PPS 40GFbody. It is particularly useful in harsh applications with fluctuatingpressure and/or temperature. Process fluid may be moving inand out of the sensor under influence of frequent pressure and/or temperature fluctuations. This results in fast desalting anddilution of the reference electrolyte. This on its turn will changethe reference voltage and cause a drifting pH measurement.By using the successful Yokogawa Bellow system integrated inthe FU24 electrode, a strong pressure compensation mechanismis created. The build-in bellow ensures immediate interiorpressure equalization to the outside pressure, making the sensorvirtually insensitive to external pressure variations.A slight overpressure caused by the bellow tension, prevents fluidingress and maintains a positive ion flow out of the sensor. Thisfeature is of particular interest in pure water applications.Both FU20 and FU24 are available with VP connector. Thismakes installation a lot easier. All sensors are delivered with aQuality Certificate.In addition to our analogue sensors Yokogawa delivers a platformconsisting of so called SMART sensors in combinaton with theSENCOM SMART adapter SA11. In the SENCOM platform digitalfunctionality allows: Perform off-line calibration reducing process impact. Enable easier asset management Enable easier statistical process control Easier monitoring of extreme conditions during use.For additional information about SENCOM and its benefitsrequest you to check the applicable GS-document numberGS 12A06S01-01Z1. This document is available from ourwebsite and through our regional offices.GS 12B06J03-E-E20xth Edition

2General Specifications FU20General specifications FU24Measuring elementsMeasuring elements::::Construction materialsWetted materials:Body: PPS 40GFConstruction materialsWetted partsSensor body::::pH glass electrodeSilver Chloride referenceSolid Platinum electrodePt1000 temperature sensor: NPT, FSM: PPS GF40: FTD :PVDF- (GF25 TZ24): Solid Platinum: G-glass: AR-glass: Viton-FTS and FSM,FTD and NPT: Porous PTFEEarthing pinMeasuring sensorLE glass tubeO-ringReference junctionJunction resistanceTemperature elementAsymmetry potentialLinearity PH (Slope)Dynamic specifications (at 25 C)Response time pH step (7 to 4): 15 sec for 90%Response time temp step (10 C)- Dome shape: 1 min for 90%- Flat Surface: 4 min for 90%Stabilization time (0.02 pH unit/10 s): 2 minutes5FSMOperating rangepHTemperatureNPTFSMPressurep(bar) 10NPT5FSM0-10Conductivity02550105: pH 7: nominal 200 MΩ: nominal 700 MΩ: Double junction,Ag/AgCl with saturated KCI,including Ag ion trap: 1 to 15 kΩ: Pt1000 to IEC 751: 8 15 mV: 96 % (of theoretical value)Dynamic specificationsResponse time pH step (7 to 4): 15 sec for 90%Response time temp step (10 C)- Dome shape: 1 min for 90%- Flat Surface: 4 min for 90%Stabilization time (0.02 pH unit/10 s): 2 minutes: -10 C to 105 C (14 F to 221 F): 15 C to 105 C (59 F to 221 F): 0 to 10 bar (0 to 142 PSIG)NPTG-GlassSolid platinumPorous PTFEVitonNote: The temperature sensor included in the FU24 is intendedto provide indication and cell compensation. Theconstruction has not been tested to the pressure vesselstandards required for plant temperature control.: 0 to 14: -1500 to 1500 mV: 0 to 100p(bar) 10::::Functional specificationsIsothermal pointGlass impedance- Dome shape- Flat SurfaceReference systemFunctional specifications (at 25 C)Isothermal point: pH 7Reference system: Ag/AgCl with saturated KCIGlass impedance- Dome shape: nominal 200MΩ- Flat Surface: nominal 700MΩJunction resistance: 1 to 15 kΩTemperature element: Pt1000 to IEC 751Asymmetry potential: 8 15 mVLinearity PH (Slope): 96 % (of theoretical value)Operating rangepHORPrHTemperature- Dome shape- Flat surfacePressureMeasuring SensorEarth PinReference JunctionO-ringpH glass electrodeSilver/Silver Chloride referenceSolid Platinum electrodePt1000 temperature sensorTemp. (ºC)0 to 14-10 - 105 C (14 - 221 F)15 - 105 C (59 - 212 F) 0 to 10 bar (0 to 145 PSIG)0: 50 µS/cmNote: T he pH operating range at room temperature is 0-14pH,but at high temperatures the lifetime will be seriouslyshortened outside 2-12 pH range.::::-10Storage temp.02550105Temp. (ºC): -15 to 50 C (5 to 122 F)Note: The FU24 is suitable for pure water applications.Note: F or detailed information about SENCOM sensors refer tocurrent edition of GS12B03J04.Note: Specifications should not be considered in isolation.For example the pH range can be 2-12pH, where themeasurement is at elevated temperatures. For adviceabout specific applications please contact your local salesoffice.Note: F or detailed information about SENCOM sensors refer tocurrent edition of GS12B03J04.GS 12B06J03-E-E

3General Specifications PH20(to be discontinued)Measuring elements: pH glass electrode and Silver/Silver chloride reference system.: Platinum electrode and Pt1000temperature sensor. Construction materialsBodyEarthing pinO-ringReference junctionCableSheet materialMeasuring Sensor5: 0 to 14: -1500 to 1500 mV: 0 to 100: -10 C to 105 C (14 F to 105 F)Operating rangepHTemperaturePressureConductivityStorage temperatureNPT- Flat surfaceConductivity0 - 14*-10 to 105ºC (14 to 221 F)0 to 10 bar ( 0 to 142 PSIG) 50 µS/cm-10 to 50ºC (-22 to 122 F)Pressure Effects on sensor mVFSM0:::::15-180-2000-10Dynamic specifications (at 25 C)Response time pH step (7 to 4): 15 sec for 90%Response time temp. step (10 C): 1 min for 90 %Stabilisation time (0.02 pH/10 s): 2 minute2550105Temp. (ºC): 15 C to 105 C (59 F to 221 F): 50 µS/cmpotential (m V)p(bar) 10PVDFSolid platinum/glassVitonPorous PTFECoaxial with 4 extra leadsThermoplastic rubberG-GlassPressureConventional Sensor10-220-2405-260-280Tempress-300Note: T he pH operating range at room temperature is 0-14pH,but at high temperatures the lifetime will be seriouslyshortened outside 2-12 pH range.pressure (bar)Operating rangepHORPrHTemperature- Dome shape:::::::Functional specifications (at 25 C)Isothermal point: pH 7Reference system: Ag/AgCl with saturated KClGlass impedance: 200 MΩ (nominal), G-glassJunction resistance: 1 to10 kΩTemperature element: Pt1000 to IEC 751Asymmetry potential: 8 15 mVLinearity PH (Slope): 96 % (of theoretical value)200250time (min) 0300The erratic trend of the standard sensor shows the progressivecontamination of its reference junction. The graph indicatesbetween 0.1 to 0.4 pH error with the conventional sensor whilethe readings from the PH20 are extremely 20-05FU20-VSFU24-10FU24-VSFU20-10FU20-20Integrated 0-V-S-15WU10-V-S-20WU10-V-S-20Flow: FF40 option/FPS or K1523DD FlowFF20 K1521JAFlow: FF20-*22Immersion: FD40 option/FPS or K1523DD Sub assembly FS20 K1521JAImmersion: FD40 option/SF4 or K1547QFSub-assembly: FS40 option/FPS or K1523DDSubassembly: FS20-*22Option HCNF or K1547PJOption /HCN2 or K1547PA when using FF20 or FS20Option /HCNF or K1547PJ when no fitting is used1”NPT SS /NSS or K1547PK3/4”NPT SS/SN3 or K1547QA1”NPT Ti/NTI or K1547PM3/4”R SS/SR3 or K1547QB1”BSP SS /BSS or K1547PL1”NPT PVDF/ FN4 or K1547PC1”BSP Ti/BTI or K1547PN1”R PVDF/ FR4 or K547PDGS 12B06J03-E-E

4Dimensions 31”NPTTYPE: VPTYPE: VS231.5193.071.01”NPT28.03/4” Taperedthread(ORP/LE)58.8Black D19.63/4” Taperedthread150.0ISO 228/1-G3/418722.5150225215.53/4” TaperedISO 228/1-G3/4threadTYPE: FSMø26ø21Ø 22 (0.86")MODEL CODESerie nummer19.6FU20-NPT with VP and VS connectorPH2063¿6.5(Ref.) Brown BTYPE: NPTø22.0(Temp) Blue E(pH shield) Yellow C(pH) Clear A3/4” TaperedthreadFU20-VP-(Temp) Red F¿20.5ø21Dimensions FU201”NPT19.619.658.890 3.0170 (6.70")190.4 (7.50")220.5 (8.68")GS 12B06J03-E-EUnit: mm

5DimensionsFU20 AdapterDemensions FU20ø 35.5 (1.4")(/NSS /NTI)1" NPT orISO 7/1-R1(/BSS /BTI)TYPE: CABLE/FSM25.0 (1")99.0 (3.9")TYPE: CABLE/NPTø 39.0 (1.54")TYPE: VP/NPT/FTDTYPE: VS/NPT/FTDø 35.5 (1.4")204 (8.03”)(/NSS /NTI)1" NPT orISO 7/1-R1(/BSS /BTI)25.0 (1")99.0 (3.9")TYPE: VP/FSMTYPE: VS/FSMø 39.0 (1.54")Installation example for FU20 in PR10 retractable fittingUnit: mm (inches)GS 12B06J03-E-E

6Installation examples using the FU20 adapter rangeFD40 also for FF40 and FS40FF40 exampleNutO-ringAdapter( /FPS or K1523DD)FittingFU20Adapter( /FPS or K1523DD)O-ringFU20O-ringGS 12B06J03-E-E

7FS20 installation example for FU24Ø 30.0 (1.18”)10.0 (0.4”)5.0 (0.2”)35.0 (1.38”)22 mmØ 30.0 (1.18”)Ø 36.0 (1.42”)K1521JAO-ringDimensions PPS adapter for FF40, FS40 andFD40 fittings (/FPS or K1523DD)Note: old part K1523DC is not compatible with VP connectorand sensors manufactered after December 2009.FS20-S32-WEFU20 adapterK1521JAFS20-S33*BGS 12B06J03-E-E

8Installation examples using the PH20 adapter rangeØ 36.0 (1.42")Sensorcable25.2 (1.0")Plug-insensor/SF4 adapter45 (1.77")Ø 30.0 (1.18")ISO 228/1-G3/4"1" NPT/FN4 (1” NPT) and /FR4 (1” ISO 7/1-R1)Ø 36.0 (1.42")Ø 30.0 (1.18")ISO 228/1-G3/4"45 (1.77")25.2 (1.0")20.0 (0.8")FS40-S22-WE3/4" NPT/SN3 (3/4” NPT) and /SR3 (3/4” ISO 7/1-R)FS40-S22-TPFront- and backend mounting in the FF40Using the /SF4 adapter, the PH20 can be mounted in thestandard range of conductivity flow fitting (FF40.), the immersionfittings (FD40-.) and sub-assemblies (FS40.). The adapter canbe mounted on the front thread, or the back thread dependenton the required insertion depth.adapter options PH20 /3:4:N:R:F:S:3/4”1”NPTISO 7/1-R1PVDFStainless steelUnit: mm (inches)O-rings(2x)30 (1.18")15 (0.6")Ø 36.0 (1.42")ISO 228/1-G3/4"Ø 30 (1.18")/SF4. Adapter for FF40, FS40 and FD40 fittings15º Minimum38.0(1.50")Direct mounting with an adapter /FN4, /FR4, /SN3, /SR324.5(0.96")15.0 (0.6")24.5(0.96")15.0 (0.6")38.0(1.50")ISO 228/1-G3/4"ø31.0(1.22")ISO 228/1-G3/4"¿31.0(1.22")/PH8 Adapter for PH8 Combi Sensor fittings (only)GS 12B06J03-E-E