User manual

PH90‐en‐GB_V1.46/16
2
Introduction
ThankyouforselectingtheExtechModelPH90waterproofpH/Temperaturemeter.This
instrumentisequippedwithaflatsurfacepHelectrode(modelpH95)forreliabletestresults.
Thisdeviceisshippedfullytestedandcalibratedand,withproperuse,willprovideyearsof
reliableservice.Pleasevisitourwebsite(www.extech.com)to
checkforthelatestversionofthis
UserGuide,ProductUpdates,ProductRegistration,andCustomerSupport.
Features
 Rugged,replaceable,flatsurfacepHelectrode(pH95)forquickpHmeasurements
 LCDdisplayshowspHandtemperaturemeasurementssimultaneously
 Calibrationautomaticallyrecognizesbuffersolution
 PTS(percentofslope)featurealertsuserwhenelectrodereplacementisnecessary
 ATC(automatictemperaturecompensation)
 Waterproofdesign(IP57);metercan
floatinwater
 Autopoweroffafter10minutesofinactivity
 EasytoreplacepHelectrode
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