Extech PH90 Bruksanvisning

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USERMANUAL
WaterproofpH/TemperatureMeter
ModelPH90
PH90enGB_V1.46/16
2
Introduction
Thank you for Modelselectingthe Extech  PH90waterproof pH/Temperature meter.This
instrumentisequippedwith a flatsurface electrodepH (modelpH95)forreliabletestresults.
This tested calibrateddeviceisshippedfully and and,withproperuse,willprovideyearsof
reliableservice.Pleasevisit (www.extech.com)our website to   check for the latest version of this
UserGuide,ProductUpdates,ProductRegistration,andCustomer Support.
Features
Rugged,  replaceable, flat surface pH electrode(pH95)forquickpHmeasurements
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
PH90enGB_V1.46/16
4
Overview
pHOverview
pHis a unit (rangingofmeasure from 0 to14pH)indicating of or ofthedegree acidity alkalinity  a
solution. are solutionsSolutionswith a pHlowerthan 7consideredacidic, with a pHhigherthan
7 a 7areknownasbases,andsolutionswith pHofexactly are  considered ‘neutral’.
The thanpH pHscaleis if islogarithmicso,forexample, sample‘A’  1lower Sample‘B’,then
Sample Sample‘A’is10 times moreacidicthan B. A differenceof 1 pHrepresents a tenfold
differenceinacidity.
GettingStarted
For       new meters, remove the battery cap (1) at the top of the meter and install 2 batteries
observingcorrectpolarity.
Remove         the cap from the bottom of the instrument (7) to expose the flat surface electrode and
referencejunction.
Before   first use, rinse the electrode with clean  tap water and wipe dry.
The   sponge should be kept moistened at all times to ensure accuracy.
ReplacingElectrodes
ThePH90is is isshippedwith a flatsurfacepHelectrodeattached(7).Electrodelife limited,and 
dependenton of(amongother factors) frequency useandcare.Iftheelectrodeneedstobe
replaced,followthese electrodes.stepsforremovingandconnecting ReplacementpH
electrodes(partnumberpH95) are available  from Extech Instruments.
1. the Unscrew electrodecollar(6)clockwise,andremoveitcompletely.
2. the the Pull pHelectrodemoduleoutfrom tester.
3. the Carefully,plug a newelectrodemoduleinto testersocket.
4. the Replaceandtighten electrodecollar to ensure a goodseal.
AutomaticElectrodeRecognition
Whenthe themeteris itpowered, recognizes typeofelectrodethatisconnectedanddisplays
the the theappropriateunitofmeasure.Attach electrodebeforepowering meter;neverpower
themeterwithoutanelectrodeattached.
PoweringtheMeter
The powerbatteries alreadyare installedinthe themeter.Press  button(3)topowerONorOFF.
The displayed status strength. The batteryindicatorletsthe theuserknow  ofthebattery  Auto
Poweroff feature off shutsthemeter automaticallyafter10minutesofinactivitytopreserve
batterylife.

Produktspecifikationer

Varumärke: Extech
Kategori: Inte kategoriserad
Modell: PH90

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