AL400G Alkalinity Meter - Illawarra Industrial Instrumentation

Features• Proven measuring system based on neutralizationtitration gravimetric analysis• Reducing the reagent consumption to 1/6 comparedto the previous models• Compact, easy-to-operate design, allowing simplerinstallation with minimum space requirements• Enhanced self-diagnostics, including check forreagent shortage General SpecificationsMeasured object: M alkalinity of clean or raw water(CaCO 3equivalent: Equivalence point pH 4.8)Measurement principle: Neutralization titration gravimetricanalysis using glass pH electrodeMeasurement interval: Continuous measurement, fixedperiod (previous value held).Interval: 10 min. + hold time (arbitrary setting inrange 0.0 to 24 hrs)Measurement ranges:Low range: 0 to 50 mg/lMedium range: 0 to 100 mg/lHigh range: 0 to 200 mg/lOutput ranges: ProgrammableMinimum range: 0 to 50 mg/lMaximum range: Measurement rangeOutput signal:Two outputs (Alkalinity, pH)Note: pH output is valid during measurement.4 to 20 mA DC (max. load resistance: 600 )Burnout upscale/downscale selectable in range2.0 to 22.0 mAOutput hold during maintenance: selectable aslast value or fixed valueDisplay: Digital (0.0 to 200.0).Contact output:Output type: concentration high or low limit alarm,auto-cleaning/auto-calibration cycle,in-maintenancestatus signal, instrument fail.Contact operation: On or Off outputContact type: relay contact output (voltage-free contact)Contact rating:Max. open/closed voltage: 100-240 V AC or 24 V DC(resistance load)Max. voltage across load: 264 V AC or 125 V DCMax. current: 2 A, AC or DC (resistance load)Max. power switched: 120 V A or 48 W (resistanceload)Contact status:Contacts Power offPower OnNo alarm AlarmAll Open Open Closed(Note) Same output for power off as for instrument failure.T01E.EPSContact input :contact types : Remote measurement start,remote cleaning start, remote calibration start(only available when specified)Contact type : Voltage-free contactContact operation: ON input resistance; 200 or lessOFF input resistance; 100 k or greaterAuto-clean function:Measurement tank: Water or acid cleaningselectableHead tank/Sand filter: back-flush washAuto-calibration function (optional ):Alkalinity span calibration with standard solutionDiagnostic functions:Measurement out of range, pH abnormal(calibration fail), converter abnormal, titrationabnormal, sample solution interrupt, reagent low,calibration solution low.Materials:Converter case; Carbon steel plateDetector case; Stainless steelMeasurement tank; Acrylic resinWetted parts; Polyethylene,polypropylene, PVC,TeflonStanchion; Carbon steel or stainless steel(specified by model/suffix code)Reagent tank: PolyethyleneReagent level detector: PolypropyleneFinish:Converter case; Baked polyurethane resinDetector; Case Baked polyurethane resinStanchion; Baked polyurethane resinColors:Converter case; Munsell 0.6GY3.1/2.0 andMunsell 2.5Y8.4/1.2Detector; Munsell 0.6GY3.1/2.0 andMunsell 2.5Y8.4/1.2Stanchion; Munsell 0.6GY3.1/2.0Ambient temperature: 0 to 40°CAmbient humidity: 5 to 95% RH (non-condensing)Storage temperature: -30 to 70°CInstallation location: Indoors (rainproof shelter required ifmounted outdoors)Mounting: Secured by anchor boltsPiping connection:Water sample, cleaning water: VP16Drain: VP40Air: Rc1/4Sample conditions:Temperature: 0 to 40°C.Flow rate : 1 to 3 l/min or less (approx. 50 gsample water per analysis)Pressure: 20 to 500 kPa2All Rights Reserved. Copyright © 2000, Yokogawa Electric CorporationGS 12G04A01-E1st Edition Feb.26.2001-00