Extech Instruments EC170

9 EC170-EU-EN V1.1 7/13
Maintenance
 Keepthemeter’smeasurementelectrodeclean.Betweenmeasurements,rinsetheelectrode
withdeionizedordistilledwater.Iftheelectrodehasbeenexposedtoasolventimmisciblein
water,cleanitwithasolventmiscibleinwater,e.g.Ethanol,andthenrinsecarefullywith
water.
 Storetheelectrodecarefully.Beforestoring,rinsecarefullyindeionizedordistilledwaterand
storedry.
Troubleshooting
PowerONisattemptedbutthereisnodisplay
 BesuretopresstheON‐OFFbuttonforatleast100mStoswitchthemeterON.
 Checkthatbatteriesarepositionedcorrectly,makinggoodcontact,andcorrectpolarity.
 Replacethebatteriesifnecessary.
 Removeandreplacetheexistingbatteries.
DisplayswitchesOFF
 ThisisnormalwhenAutoPowerOFFisactivated.
 Replacethebatteriesifnecessary.
AirBubblesadheredtoElectrode
 Stirtheelectrodecompletelyandbesuretodiptheelectrodeintoasolutionatanoblique
angle.Verticaldippingcancausemanyairbubblestoadhere.
 Gentlytapthebottomofthesolutioncontainerwhilestirringtheelectrodeinthesolution.
 Aircanbeblownacrossthe
electrodebeforedippingitintothesolution.
ErrorCodes
 RefertotheTablebelowfordetailsonErrorCodesdisplayed bythemeter.
Code Description Suggestions
SALINITYERRORS
‐‐‐‐‐ Measurementoutsideof
range
InManualRangemode,pressandholdtheup
arrowfor2secondstochangerangeorusethe
AutoRangemode
E03 Salinityisover‐range Checkagainstastandardbuffersolution.If
problempersists,repairmeter
E04 Temperatureerror Repairmeter
TEMPERATUREERRORS
E01 Temperaturecircuit
damaged
Repairmeter
E02 Temperaturevalueisbelow
allowablerangeor
Temperaturecircuitdamage
Checkagainatroomtemperature.Iferror
persists,repairmeter
E03 Temperaturevalueisabove
allowablerangeor
Temperaturecircuitdamage
Checkagainatroomtemperature.Iferror
persists,repairmeter
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