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1.Whenunpacking,checkelectrodeforpossiblemechanicaldamagetothemembrane(1),thediaphragm(3)orthebody(2).electrodessubjecttocomplaintsmustbereturnedtousortoouragentintheoriginalboxindicatingtheinvoicenumber.
2.takeoffwateringcap(7)andflushelectrodewithdistilledwater.
Afterrinsingwithdist.water,wipetheelectrodewithatissue.Donotrubasanincreaseoftheresponsetimemightresult.
3.removerubbercapwhichcoverstheelectrolytefillingaperture(4)orcutoffnipple(T)toensurepressureequalizationwiththeatmosphere.
4.eliminateanyairbubblesinsidethemembranespace(6)ofthemeasuringelectrodebysmoothlyswingingtheunitintheverticalplane.
5.torenewadriedoutglassmembrane,soakitforseveralhoursintheappropriatestoragesolution.itisrecommendedtostoreglasselectrodesindist.water,combinedandreferenceelectrodesinthereferenceelectrolytesolution(asunder8)
6.afteralonganddrystorageperiod,theglassmembranecanbereactivatedwithhydrofluoricacid(codeno.51-340073):theelectrodemembraneisdippedfor1min.inthissolutionfollowedbyrinsengwithdist.waterandsoakingfor12hoursinthestoragesolution.
7.electrodeswithgroundsleevediaphragm:slightlyliftthegroundsleevesothatsomereferenceelectrolytedropsout.
8.checklevelofelectrolyte(5)whichshouldbeapprox.10mmbelowrefillingaperture(4).refill,ifnecessarywith:
-3MKCl+AgCl(orderno.51340235)forelectrodeswithAg/AgClwire
-3MKCl(orderno.51340235)forhightemperatureelectrodeswithARGENTHALcartridge.
9.electrodeswithgellifiedelectrolytewithoutrefillingportaretreatedasper1,2,4,5,6,above.forstoragewerecommendasolution3mol/LKCl.
10.beforecalibratingortakingmeasurements,attentionshouldbepaidtotheinstructionsoftherelativePHinstrumentmanufacturer.Additionally,pleaserefertotheMETTLERTOLEDObrochure“practiceandTheoryofPhmeasurement
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