Model HC5IM FID Total Hydrocarbon and Total VOC Analyzer Brochure

THC/Total VOCFID Total Hydrocarbon And total VOC Analyzer Model HC51MLow level monitoringof Total VOCs fromfew ppb to 1000 ppmTwo versions available :• THC : Total hydrocarbon• THC / CH4 /nMHC : Total hydrocarbons, methane and non-methaneApplications :• Ambient air monitoring• Monitoring around industrial sources emitting VOCs• CO2 gas purity process control• Continuous emissions monitoring (CEM) by dilution extraction• Measurement of impurities in the industrial gas manufacturing industryMain features :• High sensitivity, stable, linear FID detector (drift-free operation)• Temperature controlled pneumatics• Graphic Liquid Crystal Display (LCD)• Interactive menu driven software• Synoptic flow diagram display• Remote troubleshooting diagnostics• Auto-ranging• Automatic response time• Real time calibration graph• User programmable ranges and average times• Built-in serial interface (RS232/RS422)• Built-in storage of the last 1500 average data• Full remote emulation of the analyzer• Field proven technology and designAir qualitymeasurementMulti-parameters monitoring system HC 51 M Anglais. Haute 14/05/03 10:50 Page 1SampleinletZero airgeneratornMHCconverter(OPTIONAL)PumpExcessOutputs(Analog. RS232)Calibration gasSignalsDisplayMicroprocessorAirH2FIDFlow adjustingFlow adjustingFlow adjusting(OPTIONAL)The analyzer uses the principle of flame ionization detection (FID) to measurethe concentration of hydrocarbons in air.The ionization mechanism of organic substances in the flame is carried out intwo phases :• Cracking of organic compounds in the center zone of the flame and forming ofCH?, CH2?, CH3? radicals.• Chemical ionization in contact with oxygen according to reaction :CH?+ O ? CHO++ e-.The analyzer's electrometer measures the current generated by the ionization ofthe carbon atoms in the flame fueled by a hydrogen/air mixture.To distinguish between “total” and “non-methane” hydrocarbons, an optionalselective converter oven is used to oxidize all the non-methane hydrocarbons.The temperature controlled pneumatics prevents condensation.The flow is automatically adjusted and the instrument is provided with automaticignition of the flame in case of flame out or power failure.The HC51M is delivered with built-in zero/span solenoïd valves to be connectedto an external source of gas. Zero/span checks can be performed manually, auto-matically (programmable cycles) or via remote control (dry contact, RS232). Realtime calibrationgraphs can be displayed during span check operation.Multi-tasking software, combined with the LCD graphic display, gives the usereasy and fast access to the instrument set-up, status and maintenance parameters.Real-time synoptic, auto-diagnostic and maintenance data screens can be dis-played while the instrument is operating.The automatic response time function determines the measurement integrationtime best suited for the measurement of hydrocarbons concentrations.The HC51M includes data collection and logging features and stores the average values.The built-in RS232 interface and digital communication protocol allow full PCinstrument emulation for remote control and troubleshooting as well as a commonserial link, thus achieving a fully digital air pollution monitoring station.Specifications subject to change without prior notice ref. : 05/03 Analyseur HC51M Angl.1THC/Total VOC• Ranges : 0-10 / 50 / 100 / 500 / 1000 ppmor customrange selectable.• Autoranging between two-userspecified ranges.• Noise : 0.025 ppm.• Lower detectable limit : 0.05 ppm• Response time : automatic andprogrammable • Zero drift : 0.1 ppm/ week.• Span drift :less than ± 1 %/ week• Linearity : ± 1 % of F.S.• Total sample flow rate : 80 l/h• Analysiz sample flow rate : 4.8l/h • Averaging time : programmablefrom 1 to 9999 min• Data storage : last 1500 average values• 3 selectable independent outputs :0-20 mA / 4-20 mA / 0-1 V / 0-10 V• Digital output : RS232C / RS422• Built-in sample pump• Chassis : 19" rack mountable, 4U• Dimensions : 581 mmx 483 mm x 177 mm (L x Wx H) 22.9" x 19" x 7"• Weight : 27 kg (59.4 lbs)• Power : 115 V, 60 Hz or 230 V,50/ 60 Hz, 450 VA• Operating temperature : 10-35° C• Required utilities :- Hydrogen : 0.04 lpm @30 psig (2 bars)- Fuel air : 0.4 lpm @30 psig (2 bars)Options :• Built-in zero air generator : to supplyhydrocarbon-free air for fuel air needsand zero checks.(It requires an externalair compressor)• External air compressor : to be usedwith the zero air generator• Built-in nMHC converter module : used toselectively oxidize all hydrocarbonsexcept methane• QS N55 hydrogen gas cylinder or generator• Automatic fluid circuit purge for high humidity conditionsDistributed by : FID Total Hydrocarbon And Total VOC Analyzer Model HC51MSpecifications : Principle of operation :ISO 9001111, boulevard Robespierre - BP 4513 - 78304 POISSY Cedex - FRANCETel. : +33 (0)1 39 22 38 00 - Fax : +33 (0)1 39 65 38 08Web : www.environnement-sa.com - e-mail : info@environnement-sa.comISO 14001ECOPASSRemote ControlHC 51 M Anglais. 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