DZS-708multi-parameteranalyzer(hereafterreferstometer)isanewlaboratoryanalyzemeterwhichcontainsionmeasuring,conductivemeasuring,DOmeasuringandtemperaturemeasuring.Itallowstoinspectingtherelevantparameterofabove.Italsoallowsuserstoselectindividualmeasuringaccordingthepracticalneeds.Inwhichionmeasuringallowstomeasure:potentialvalue,pHvalue(orpXvalue),ionconcentration.Conductivemeasuringcanmeasure:conductivity,resistivity,TDS,salinity.DOmeasuringcanmeasure:electrodecurrent,concentration saturationofDO.Characteristics 1．IonMeasuring1.Canmeasurepotentialvalue,pHvalue(orpXvalue),concentrationofion.2.Canmeasureseveralnormalions.Meterprovidesseveralnormalionmodels:H+,Ag+,Na+,K+,NH4+,Cl-,F-,NO3-,BF4-,CN-,Cu2+,Pb2+,Ca2+,etc?foreasyuse.Usercanmatchrelevantionselectiveelectrodeandreferenceelectrodetomeasurecorrespondingionconcentrationdirectly.Whenmeasuringfinished,usercaneasilyarrangetheswitchingbetweendifferentconcentrationunits.3.Apartfromtheionunitprovidedbythemeter,incaseuserneedstomeasureotherion,youcanalsosetyourownionmodeltomeasureotherion.4. Meterhastheabilityofautomaticdistinguishingstandardbuffersolution.YoucanselectseveralpHstandardbuffersolutionstocalibrateelectrode.Total10differentstandardsolutionsareprovided.5. Usercansetownstandardsolutiongroups.6. Withone-pointcalibration,two-pointscalibrationandmultiplepointcalibration(mostly5points)function.7. Withseveralconcentrationmeasuringmodes:directreadconcentrationmeasuringmode,knownaddingmeasuringmode,unknownaddingmeasuringmodeandGRANmeasuringmode.8. Onthebasisofsingleslicemicro-processor,withhighprecisionA/Dswitchingchip,matchedwithprecisemeasuringelectrode,metercanensurethehighprecision.Thevalidresolvingpowerofpotentialcanbereachedto0.01mV. 2．ConductiveMeasuring1.Metercanmeasureconductivity,resistivity,totalsolidsolution(TDS)andsalinity.2. Withinfullmeasuringrange,meterhasautomatictemp.compensation,automaticcalibration,automaticmeasuringrange,automaticallyfrequencyswitchingfunctions.3. Withcalibrationfunction,usercouldcalibrateelectrodeconstantorTDSswitchingcoefficient. 3．DissolvedOxygenMeasuring a.Metercanmeasuredissolvedoxygen?sconcentration,saturationandelectrodecurrent.b.Withautomatictemperaturecompensationfunction.c.Withcalibrationfunctionwhichcanmakezerooxygencalibration,fullscalecalibration,atmospherecalibrationandsalinitycalibration. 4．OtherCharacteristic4.1.Big5.7??touchscreenforeasyuse.4.2.Apartfromionconcentration,meterallowstomeasureallparameterinion,conductive,DOandtemperaturesimultaneously.Ofcause,italsoallowusertoselectnecessaryparameterformeasuring.4.3.MetersupportsGLPregulation:a.Meterrequestsusertosetoperatornumberandthencanrecorddowntheprocedureofalluser.b.Canrecorddownandprintcalibratingdatac.Canstore200setsmeasuringdataineachofpHmeasuringdata,conductivemeasuringdata,TDSmeasuringdata,salinitymeasuringdataanddissolvedoxygenmeasuringdataifallaremeetsGLPregulation.Metercanalsostore6kindsofionmeasuringvalueincludingcorrespondingpXvalueandionconcentrationvalue100setsofeach. 4.4.CanSearch,printanddeletemeasuringdata4.5.Cansearchtheusingparameterunderpresentmeasuringmodeaswellaspreviouscalibrationdata.4.6.Therearethreemeasuringmodes:continuousmeasuringmode,timemeasuringmodeandbalancemeasuringmodetomeetdifferentuser?smeasuringrequirements.4.7.WithstandardRS232interface,canconnectwithPC.4.8.Withelectricitycutoffprotectionfunctionwhichcanprotectthestoredmeasuringdata,calibratingdataandsetparametertobesavedwhenmeteristurnedofforabnormalelectricitycutoffoccurred. 1.MeasuringRange:a.mV:(-1999.99~0)mV,(0~1999.99)mV; b.pH/pX:(-2.000~19.999)pH/pX;c.Concentration:variousconcentrationvalueincorrespondencetopotentialmeasuringrangeandindicatingelectrode. d.Conductivity:0.000 S/cm~199.9mS/cm e.Resistivity:5.00 .cm~20M .cm f.TDS:0.000mg/L~19.99g/L g.Salinity:(0.0~8.00)% h.Dissolvedoxygenconcentration:(0.00~19.99)mg/L i.Dissolvedoxygensaturation:(0.0~199.9)% j.Temperature:(-5.0~135.0)℃2.Resolving:a.pH/pX:0.01/0.001pH d.Saturation:0.1%b.mV:0.1/0.01mV c.DissolvedOxygen:0.01mg/Le.Temperature:0.1℃3.ElectronicUnitAccuracy:a.pH/pX:?0.002pX?1bit f.Salinity:?0.1%?1bitb.mV:?0.03%(FS) g.DO:?0.10mg/Lc.Ionconcentration:?0.5%?1bit h.DOsaturation:?1.0%d.Conductivity:?0.5%(FS)?1bit i.Temperature:?0.3℃?1bit e.TDS:?0.5%(FS)?1bit4.InputImpedance:＞3X1012 5.Normalworkingcondition:a.Ambienttemperature:(5.0~35.0)℃b.Relativehumidity: 85%c.Powersupply:DC(9VDC,800mA,inside?Cpositive,outside?Cnegative)d.Noperformance-affectedvibrationsnearby.e.Nocorrosivegasesinsurroundingf.Nostrongelectromagneticinterferenceexceptthegeomagneticfie6.OutsideDimension:lxbxh:mm:290x200x707.Weight:about1kg