Total Hydrocarbon Analyzer EuroFID

Total Hydrocarbon AnalyzerEuroFIDProductinformation

ApplicationsContentsApplicationsBenefitsMeasuring PrincipleFunction PrincipleModular DesignAnalyzer AssemblyRemote UnitI/O TerminalRack Mounting TypeTechnical DataPage 2Page 3Page 4Page 5Page 6Page 7Page 8Page 9Page 10Page 11EuroFID is designed and constructedfor continuous monitoring of totalhydrocarbons in the air and in corrosiveand condensable gases both intrace levels and concentrations ofup to 100 percent by volume at processtemperatures of up to 750 °C.Process Monitoring and ControlThe EuroFID measures the purity or qualityof gases in production, controls the qualityof raw materials (cleanliness of preproductsfor respiratory auxiliary gases), or monitorsthe environment of production processes.The equipment is able to detect the explosivegas atmosphere of high temperaturesolvent vapors, measuring a full range fromfar below the low explosion level (LEL) toabove the high explosion level (HEL).For measurement in hazardous locationsrequiring various safety precautions, theextensively equipped EuroFID-DUO guaranteesreliable LEL monitoring.The in-line type instrument is also suitablefor outdoor installation in hazardous areas,as the instrument has an explosion-proofflame ionisation detector (FID) and is protectedagainst spray water and natural elements.When integrated with a stripping unit, theEuroFID is also suitable for cooling andwaste water monitoring.Factory MonitoringThe health and safety of human resourcesin the workplace is essential. Approximately85% of all toxic compounds can be measuredat up to 1000 sample points withthe EuroFID sample point scanner.Emission MonitoringEuroFID is ideally suited for continuousemission monitoring applications includingpower utilities, waste incinerator facilities,thermal and catalytic after-burners, activatedcarbon and spray towers and all otheremission sources in compliance with Federalor State regulatory requirements includingUS EPA Method 25A.The EuroFID-DUO measures raw inlet concen-trationsof gas purifiers and outletconcentrations of cleaned, scrubbed gasstreams in exhaust stacks.The instrument is also capable of measuringexhaust gases of combustion engines.2

Measuring PrincipleThe Measuring PrincipleThe gas concentration is converted intoan electrical signal by means of aflame ionisation detector (FID). In the FID,a hydrogen flame burns in hydrocarbonfreeair, called combustion air.An electric field is applied between jetand cylinder electrode by means of polarisationvoltage.When the sample contains hydrocarbonmolecules, they are heated in the flameand then cracked and stripped causing CHfragments to form. These fragments areoxidized by the oxygen in the combustionair and CHO + ions form.The ion current can be measured and isproportional to the quantity of carbon atomsof organic compounds.PolarisationVoltageFlameCylinder ElectrodeIonsjetFuel Gas (H2) Sample GasAmplifier and ReadoutUThe sample gas is pulled out of the processthrough the sample gas filter by meansof a double stage jet. Sample gas isthen diluted and compressed in the secondaryjet parallel to the bypass. All partsof the sensor block in contact with samplegas are heated to a constant temperature.The dilution rate depends only on thepressures in the jet device. They are measuredby pressure sensors P1, P2 and P3.The electrically adjustable pressure regulatoris governed by a controller so thatthe dilution rate remains constant at variablesample input pressures.The FID receives part of the diluted samplegas and continuously measures the concentrationof hydrocarbons in this gas mixture.Heated Sensor BlockEU-Patent No.: EP 0 3446184

Function PrincipleThe Function PrincipleThe double stage jet forces the constantlydiluted sample back to the processthrough the bypass capillary. A portion ofthis is directed to the FID through thesample gas capillary.The fluctuation of the sample gas pressureon the inlet of both capillaries is balancedby the addition of control air. The controlair circuit consists of the control air capillaryand sample gas pressure regulator.Control air flow is complementary to thesample gas flow. Flow compensation is limitedby the control air capillary.If the flow of the control air is more thanthe limit, the increased pressure drop onthe control air capillary reduces the inputpressure of the sample gas pressure regulatorand prevents the ability to hold aconstant output pressure.The sample gas pressure drops and the continuouspressure sensor signals a failure.During the calibration procedure two comparisongases - the zero and span gas - arefed to the sample input of the instrumentthrough the zero and span gas solenoid valves.The flow through the calibration gas capillaryis higher than the suction power of the doublestage jet. Therefore, the calibration gasoverflow is fed back into the process duringthe calibration procedure and an accuratecalibration is guaranteed.The burner air flow is adjusted by the burnerair needle valve.The fuel gas flow is adjusted by the fuel gaspressure regulator and by the fuel gas flowregulator. The fuel gas flow is increased byopening the ignition gas solenoid valve duringthe flame ignition. The addition of fuelgas is adjusted by the ignition gas needlevalve.5

Modular DesignEuroFIDPanel Mounting TypeAnalyzer AssemblyThe EuroFID system is designed to be modular,both electrically and mechanically,and consists of the analyzer assembly, theremote unit and the I/O terminal.EuroFIDIn-Line Analyzer AssemblyEuroFIDRemote UnitEuroFIDAnalyzer AssemblyRS 42242 V ACTerminalboxRS 422230/115 V ACEuroFIDRemote UnitAnalog Inputs (0/4 .. 20mA)1234Analog Outputs (0/4...20mA)1 (Measuring Value)2 (Auxiliary Value)EuroFID I/O TerminalModuleSocketDigital and analog in- and outputsPower SupplyBasic ModulePower(230 V/115 V AC)SystemRS 232Digital Inputs (24 V)Gas Supply FailureCalibration BlockingMaintenance BlockingDigital Outputs (isolated)Measuring Value validCalibrationFailureRequirement of MaintenanceAlarmPrealarmLower PrealarmLower AlarmProcess Control SystemRS 232PrinterRS 232PrinterPower (230 V/115 V AC)6

Analyzer AssemblyThe Analyzer Assemblycontains the heated sensor block, the gassupply section and the control circuitry.The gas supply section supplies operatinggases for ignition and continuous operationof the flame, constant sample dilution anddelivery of zero and span calibration gases.The control circuits contain an isolatedpower supply for all operating voltages.Analog and digital inputs and outputs inthe analyzer assembly are processed by amicrocontroller and provide data transfervia an isolated RS 422 serial output.Panel Mounting Type Analyzer AssemblyThis type is usually mounted on a rear cabinetpanel.The sample is introduced to the analyzervia a heated sample line. This configurationallows creation of cost-effective continuousemission monitoring systems, if other components,such as CO, CO 2etc. require measurement.All analyzer-specific data of the analyzerassembly, such as double stage jet characterisitics,are stored in the non-volatilememory.FuelGasInstrumentAirCalibrationGasWeight: 12,8 kgProtection: IP 20Ambient temperature: 0...40 °CDimensions: 401 x 340 x 188 (W x H x D in mm)Gas Supply UtilityProcessFIDHeated Sensor BlockPressure and SolenoidValve ControlFID AmplifierFlame DetectorIgnitionPressure MonitoringHeatingMemoryMicrocontrollerPower SupplyControl Circuits42 VACRS 422In-line Type Analyzer AssemblyThis instrument type is flanged directly tothe process wall eliminating all typical sampleprocessing components such as heatedlines, prefilters and other devices.The analyzer assembly is connected to theremote unit by means of the isolated RS422 serial output.The extremely short sample tube results ina response time of less than 1.5 seconds.It is, however, possible to connect the unitto a computer instead of a remote unit andachieve a fieldbus connection.In the explosion protected version, theheated sensor block is flameproof and apart of the control circuit is encapsulatedto enhance the intrinsic safety.Weight: 25 kgProtection: IP 65Ambient temperature: -20...50 °CDimensions: 273 x 210 x 540 (W x H x D in mm)7

The Remote UnitThe remote unitThe remote unit was developed accordingto the proposal of the StandardisationCommission of the German ChemicalIndustry (NAMUR) and has all requiredfeatures such as text-based menucontrolled operation.Additional context sensitive information isavailable by means of the "help" key. Thelarge backlit liquid crystal display and fourlight-emitting diodes (Alarm, Failure,Maintenance and Measure) offer the usercomplete measuring value and instrumentstatus indications.The remote unit has, in addition to theanalyzer assembly interface, three otherserial interfaces whereby the I/O terminal,a printer and other remote functions canbe made using a laptop, or a modem, or acustomer arrangement, or even anotherremote unit.The following operation modes are generallyavailable for instrument functions:• manual• fully automatic• external control via I/O terminal• external control via remote controlThe remote unit has a 19 inch rack housing,height 3 units (133.5 mm), depth 320 mm.One rack can contain up to 2 remote units.8

The I/O TerminalThe I/O terminalis an active assembly, electrically connectedto the remote unit by RS 232C interface.The I/O terminal has inputs and outputs asfollows:• sample point scanner, maximum 1000sample points• analog outputs, maximum 1000• temperature control and observation,maximum 65 circuits• change of product charge, maximum 32• product counter for car manufacturing• control mode internal/external• control inputs for calibration and rangeselectThe I/O terminal is mounted on a cabinetsupport rail and is equipped with clampconnections. Electromagnetic compatibleinputs and outputs can be configuredaccording to the requirements of the user.Traditionally expensive and complexhardware, like relays and other devices,are no longer necessary.Basic ModulThe combination of the analyzer assemblyand the remote unit, or additionally the I/Oterminal, results in very cost-effectivesolutions for measuring applications.If the inputs and outputs of the I/O terminalare not suitable, it is possible to connecta programmable logic controller (PLC)instead of the I/O terminal. With this design,absolute flexibility is guaranteed.SocketI/O Terminal ModulNot only are the internal instrumentfunctions controlled by the EuroFID, butcontrol of all connected peripheral units,such as gas supply up to the sample filter,are standard.mounted I/O Terminal9

Rack Mounting TypeThe Rack Mounting TypThe 19 inch rack mounted instrumentcontains the analyzer assembly and remoteunit. This model is designed for, amongother things, users desiring to replace oldHC analyzers with the patented 1 state-ofthe-artEuroFID instrument.Weight: 28 kgProtection: IP 20Ambient temperature: 0...40 °CDimensions: 483 x 133.5 x 400 (W x H x D in mm)1: European Patent 0 344 61810

Technical DataMeasurement propertiesOptical readout:Range:Linearity:Detection limit:Response time(90%):Zero drift:Span drift:Influence parameterAmbient air pressure:Sample pressure:Zero value:Span value:Setup time:Inputs and outputs of theremote unitAnalog outputs:Binary outputs:Binary inputs:Analog inputs:Serial interfaces:Sample gasPressure range:Flow:Connection:Operation gasesCalibration gas:Instrument air:Fuel gas:Gas connections:4 1/2-digit, and bar graph5 user defined ranges- first range 1 ppm C 3 H 8 equivalent- last range 100 Vol%up to 10 000 ppm ± 1 % per decade, full range ± 5 %.< 1.5 % of the meas. range value< 1.5 sec.< 0.5 % of the meas. range value/month< 3 % of the meas. range value/month< 0.5 % of the meas. range value/10 hPa< 1.0 % of the meas. range/10hPa< 2 % of the meas. range/10 K< 1 % of the meas. range/10 K< 1.5 hourtwo 2 x 0/4...20 mA isolated, load resistor max. 500 Ohmfour isolated FET-switch, max. loading: 24 V AC/DC 100 mA for statusoutputs Measure, Failure, Calibration and Maintenancethree isolated inputs, control voltage 24 V DC 10 mAfor operation gas fault, calibration and maintenance locks4 x 0...10 V, differently engaged, depending on the system typeRS 232c, isolated, for printerRS 232c, isolated, for I/O terminalRS 232c, isolated, for remote control (option fieldbus)atmospheric, ± 50 hPa standard0.5 l/min, by atmospheric sample input pressureSS pipe, AD 6 mm, ID 5 mmdepending on the measurement task approx. 80% HC concentrationpropane equivalent of the measurement range in synthetic air, storedin a pressurized cylinder. Pressure: 3 bar, consumption: only duringthe calibration procedure, approx. 1.6 l/min.from compressed air lines. The content of residual hydrocarbons hasto be > 1 % measurement range max. 4 ppm without variation. Thecompressed air must be free of oils, fats and condensate (dew pointhas to be less than 10 degrees of the least possible outsidetemperature, to avoid condensation in the lines).pure hydrogen H 25.0 from pressurized cylinder. The residualhydrocarbon content required to be less than 0.5 ppm. Pressure: 3bar, consumption: continuously, approx. 1.8 l/h1/8" NPTPowerPower supply:Power consumption:230V AC 48...63Hz or 120V AC 48...63Hzapproximately 350 VA during setup and 280 VA in operation withouta heated line11

Copy, complete and fax to +49 7641 469 1149w w w . s i c k - m a i h a k . c o mF F a a x x a R n e t p w l o y r tCompanyNameJob Title/Dept.StreetZIP, CityPhone/FaxIndustry/Fieldof ApplicationYes, I would like to know more aboutthe field of:Process gas analysisFlue gas monitoringEmission monitoringDust measurementVolume flow measurementData acquisition and evaluationWater analysisLiquid analysisLevel measurementTunnel sensorsSpecial measuring technologyI would like a detailed consultation with oneof your project advisors. Please arrange ameeting for me.Download more product Information at www.sick-maihak.comSICK MAIHAK GmbH • Analyzers & Process Instrumentation • Nimburger Str. 11 • 79276 Reute • GermanyPhone +49 7641 469-0 • Fax +49 7641 469 11 49 www.sick-maihak.com • E-Mail: info_sick-maihak@sick.de8 009 777/10-2003/DIV 03 • Printed in Germany (10-2003) • Subject to change without prior notice PI 1.03 en