HI98121_Supplemental手册说明书指南_09_FINAL

Frequent Questions and AnswersQ.Why doesn't my tester read high-mVORP(-250mVto-999mV)anymore?A.Eachtime the tester is used in a extremely Alkaline or high-mVORP sample,a buildup of minerals occurs on the surface of the Platinum ORP sensor thatinterferes with testers ability to read the full-mVscale.Overtime the buildupcandecrease the amount of platinum surface area that comes into contact with thesample adversely affecting the sensitivity of the tester.Try cleaning the sensor inSupplementaHI7061 ceaning solution for 15 minutes.Note:You may need to re-hydrate theATCHpH sensor (glass bulb)in Hl70300 storage solution for 30-90 minutes if you findthe pHreading is slow to respond/stabilize after soaking in deaning solution.70InstructionaQ.How often should I clean my pH/ORP sensor in HI7061 deaning solution?212eA.For optimal performance and minimal preparation time before use,clean thepH/ORP sensor after each use by soaking it HI7061 deaning solution for 2-3 min-○N00EManual for theutes.Note:Cleaning the pH/ORP tester after each use for a shorter duration 2-3mins)will be less detrimental to the pHsensor while still effectively preventingmineral buildup on the surface of the Plat inum sensor.Hl98121:Q.Ihave deaned my pH/ORP sensor and still do not see high-mV readings(-250mVto-999mV),why?A.It is possible your water lonizer is not producing the desired alkalinity/-mVWater lonizersample.Consult the manufacturer on how to dean or service the unit.If youare sure the lonizer does not need service/maintenance you can try polishingthe Platinum ORP sensor with a light abrasive lint-free (emery)material suchas jewelers rouge.The surface of the platinum sensor must not be scratchedapplicationsduring polishing.For more information visit us atoH ORPwww.hannainst.com/usa or contact:Tech SupportSales SupportwaterprootG量1800.426.6287c量1.800.426.6287@e-msttech@hannainst.come-meit:sales@hannainst.comHANNAHANNAlinstrumentsinstrumentsUSAUSA-