Waltron Quantichem - Model 9071C Services - Hydrazine Analyzer - Brochure

QUANTICHEM® 9001 SERIES Hydrazine AnalyzerQuantichem® 9071CThe Waltron Quantichem® 9071C Hydrazine Analyzer is the mostadvanced hydrazine instrument specifically developed for use in continuous measurement and determination of hydrazine concentration in boiler feedwater.Common application points in a boiler system for online hydrazine measurement include: deaerator, condensate system and boiler feedwater.FEATURESWide analysis range: 0.1ppb – 1000ppb (1ppm)Low maintenanceVery low reagent and standard consumption to be changed only every two monthsNo change of diffusion tubingAutomatic range selectionProcess calibration – calibrate to sampleTwo 4-20 mA isolated current outputsProtection of sensor from “Hot Sample”Automatic temperature compensationAutomatically stores last 10 calibrations and alarm logsRechargeable hydrazine cellBENEFITSLow reagent and standard consumptionMinimal maintenance requiredAutomatic operationConstantHead UnitHydrazine SensorSensor QuickConnectionStainless SteelMixing TubeEntrainment“T”ReagentSolutionContainerEntrainment“T”Drain ConstantHead UnitHydrazineSensorSample/CalibrateSolenoidValve3-WayPressureReliefValveHeatExchangerSampleInletStandardSolutionContainerDrainFlow path during calibration modePERFORMANCERange: 0.1ppb – 1000ppb (1ppm) Accuracy: ± 5% of reading or ± 2ppb, whichever is greater for concentrations up to 500ppb. 10% or better forconcentrations above 500ppbStability: ± 5% of reading or ± 2ppb per week, whichever is greaterResponse Time: 90% of a step change in less than 3 minutesTemperature Compensation: Automatic, reduces sample temperature error to less than 0.5% of reading per degree CpH Compensation: Buffer continuously induced into sample flow – Ammonium Hydroxide 0.88 SG (28% to 30% NH3)Calibration: Manual calibrationCurrent Outputs: Two isolated 4-20mA current (analog) outputsDigital Outputs: Communication interface via RS-232 & RS-485 using MODBUS RTU protocolAlarms: Three voltage-free contacts, alarm points set from transmitter rated at 2A, 250VAC (non-inductive)Power: Wide range of input power supply 90VAC – 250VACCE Certification (on request): Meets low voltage and low electromagnetic compatibility directivesOPERATING CONDITIONS Sample: Temperature: 41 – 131° F (5 – 55° C); Flow 150 – 400 ml/minAmbient Temperature: 32 – 131° F (0 – 55° C)Pressure: 5 – 30 psig (0.35 – 2.07 bar)Composition: Sample should be filtered to 60 microns, free of film forming compoundsMECHANICALConstruction: Transmitter – high strength ABS, IP65 (NEMA 4x) Wet section – high strength ABS and sheet metal, all wetted parts stainless steel or PVC, IP55 (NEMA 4)Dimensions: Transmitter: Height=10.92”(27.74 cm), Width=7”(17.78 cm), Depth=7.75”(19.7cm) with wall-mount bracket, Depth=4.50”(11.43cm) without wall-mount bracketWet Section: Height=18.25”(46.36 cm) including drain, Width=11.25”(28.58 cm), Depth=7.63”(19.38 cm)Mounting: Four key-style holes: Height=0.86”(2.18 cm), Top Width=0.281”(0.714 cm), Radius=0.28”(0.711 cm) Horizontal: 9”(22.86 cm), Vertical: 12.875”(32.70 cm) Weight: 23 lbs. (10.44 kg)Wiring: Eight (8) conduit knockoutsPiping: Sample Inlet: 1/4"(0.635 cm) OD Swagelok?, Drain: 3/8"(0.953 cm) OD tubeDistance: Up to 325 feet (100 meters) on requestFinish: Corrosion resistantGENERA L S P EC I F I CAT IONSWALTRON, L.L.C.50 Tannery Road, PO Box 70, Whitehouse, NJ 08888-0070 Phone: 800-242-7353 • Outside the US: 908-534-5100 Fax: 908-534-5546 • www.waltron.netWALTRON B.V.PO Box 7089, 5980 AB Panningen, The NetherlandsPhone: +31-77-3082955Fax: +31-77-3082956 • www.waltron.netQuantichem® 9071C Sensor UnitDuring calibration the 3-way valve is activated, a standard of known hydrazine concentration passes through a heat exchanger to equilibrate the solution’s temperature to that of the sample. The standard then enters the constant head unit where flow is stabilized. Alkaline buffer vapor isadded via a vapor entrainment mechanism before the standard enters the hydrazine cell and flowsto drain. During normal operating conditions the standard solution is replaced by the sample. ReagentSolutionContainerEntrainment“T”Drain ConstantHead UnitHydrazineSensorSample/CalibrateSolenoidValve3-WayPressureReliefValveHeatExchangerSampleInletStandardSolutionContainerDrainFlow path during normal operating conditionsSample FlowStandard FlowReagent