Mettler Toledo pH electrode InPro® 485Xi Operating instructions

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14 InPro 485X i pH electrode

InPro 485X i pH electrode © 02 / 16 Mettler-Toledo GmbH

52 004 112 Printed in Switzerland

1 Introduction ................................................................... 15

2 Safety instructions .......................................................... 15

3 Product description ........................................................ 15

4 Installation and commissioning ....................................... 16

5 Operation: Calibration of the electrode

and pH transmitter ......................................................... 16

6 Maintenance .................................................................. 17

7 Removalofdirtandresidue ............................................. 17

8 Disposal ....................................................................... 17

9 Guarantee ..................................................................... 17

10 Storage conditions ......................................................... 17

Contents

en

InPro

485X i

pH Electrode

Instruction Manual

InPro and ISM are registered trademarks of

Mettler-ToledoGmbHinSwitzerland,theUSA,

theEuropeanUnionandafurthervecountries.

InPro 485X i pH electrode 15

Printed in Switzerland 52 004 112

1 Introduction

METTLERTOLEDO’scombinationpHelectrodeswith

pNa reference system and temperature sensor offer re-

liablepHmeasurementinsolutionswithanearstable

concentrationofsodiumions.Thiselectrodeofferstop

performanceinharshbrineprocesseswithoxidizing

compounds e.g. chlorine.

Please read through these operating instructions

carefully before commissioning, in order to ensure

trouble-freeuse.

We recommend that you only operate the electrode

in combination with original parts from METTLER

TOLEDO.Operationandmaintenanceshouldbecar-

riedoutonlybytrainedpersonnelandstaffwhohave

read and understood the operating instructions.

2 Safetyinstructions

When cleaning or calibrating the electrode using

solutionscontainingacidsoralkalis,bothprotective

spectaclesandprotectiveglovesshouldbeworn.The

sensorcancontainupto0.3%boricacidbyweigh.

 Donottouchtheelectrodeattheplug-incontacts,as

electrostatic discharges can damage the electronics.

3 Product description

Theinscriptiononeachelectrodecontainsthefollow-

ing information:

METTLER TOLEDO Manufacturer of the electrode

InPro

®

485Xi/SG/yyy Typedesignationx=membrane

glass,i=ISMDigital/SG=ancil-

laryelectrode/yyy=rodlengthin

mm

combination pH Typeofelectrode

pH 0…14 (InPro 4850 i) pH measurement range

–10…120°C(14…248°F) Temperaturerangeforoperation

Order No. 52 00X XXX Order number

SEV14ATEX0168X Identicationandnumberof

certicate

IECExSEV14.0025X Identicationandnumberof

certicate

IS/I,II,III/1/ABCDEFG/T6 FMtested

See instruction manual Instruction (Observe the operating

instructions)

In addition, each electrode is allocated a serial

number

ontheredpartoftheplug-inheadtoenable

identication.

en

16 InPro 485X i pH electrode

InPro 485X i pH electrode © 02 / 16 Mettler-Toledo GmbH

52 004 112 Printed in Switzerland

Important!Pleasetakenoteofthefollowingtechnical

specicationsofthispHelectrode:

Referencesystem Sodiumsensitiveglass

membrane

Min. Na

+

concentration 10mg/L whenpH>7;

 100mg/L when7>pH>2;

 1g/L whenpH<2

4 Installation and commissioning

1. Whileunpacking,checktheelectrodeformechan-

ical damage. Please report any damage immedi-

atelytoyourMETTLERTOLEDOsupplier.

2. Removetheprotectivecapandrinsetheelectrode

forashorttimewithBufferpH=4.01/Na

+

3.9M.

Afterrinsing,theelectrodeshouldonlybelightly

dabbed.AnyrubbingofthepHorthesodium-sen-

sitive glass can increase the response time as a

result of electrostatic charge.

3. Check the space behind the pH and the sodium

sensitive glass for air bubbles and remove any

air bubbles by shaking the electrode slightly in a

vertical direction.

4. Place the electrode into the housing as described

in the instructions for the housing.

5. ConnecttheelectrodeandthepHtransmitterwith

the corresponding cable (AK9). Observe the con-

nections scheme that accompanies the cable or

the transmitter.

6. ISM

®

sensors such as InPro 485X i enable Plug

and Measure and expanded diagnostics. For in-

stallation, commissioning and operation of the

ISM system please refer to instructions for the

transmitter,moduleandcable.

5 Operation: Calibration of the electrode and

pH transmitter

Before a calibration, immerse the electrode for

10 minutes in a Buffer pH=7.00/Na

+

3.9M or

BufferpH=4.01/Na

+

3.9Mbuffersolutionwhilestill

connectedtothetransmitter.A2-pointcalibrationis

recommended,e.g.BufferpH=7.00/Na

+

3.9M and

BufferpH=4.01/Na

+

3.9M buffer solutions.

For further details please consult the operating

instructions for the pH transmitter.

en

InPro 485X i pH electrode 17

Printed in Switzerland 52 004 112

6 Maintenance

1. After each working cycle, the sensitive part can

be cleaned with a soft toothbrush and a diluted

HCl-solution (0.1 and 1 mol/L), and then rinsed

with20%NaClsolution.

2. Iftheelectrodeisnotinuseitmustbestoredwith

theelectrodetipimmersedinBufferpH=4.01/Na

+

3.9M.

3. If an electrode is inadvertently stored in a dry con-

ditionforseveraldays,themembranemustbeim-

mersedinBufferpH=4.01/Na

+

3.9M for at least

6 hours.

4. Theplug-inheadshouldoccasionallybechecked

forpossibletracesofmoisture.Ifnecessary,clean

itthoroughlywithdeionizedwateroralcoholand

then dry it off carefully.

7 Removal of dirt and residue

Withasofttoothbrushandwateranydirt/residuecan

easilyberemovedfromtheelectrode.Mildwashing

agents can also be used.

Warning! Solutions containing hydrouorides dam-

age the pH sensitive part of the electrode.

8 Disposal

It is the user’s responsibility to dispose of the sensor

inapropermanner.Thesensorcancontainelectronic

components that require disposal such that no per-

sons or the environment are endangered.

9 Guarantee

Onmanufacturingdefects,12monthsafterdelivery.

10 Storage conditions

We recommend that the electrodes are stored at room

temperature. Keep the electrode tip in the supplied cap

withBufferpH=4.01/Na

+

3.9M.

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InPro 485X i pH electrode 75

Printed in Switzerland 52 004 112

–

Notes

Brazil Mettler-Toledo Ind. e Com. Ltda.

 AvenidaTamboré,418–Tamboré,

 BR-06460-000Barueri/SP,Brazil

Phone +55 11 4166 7400

 e-mailmettler@mettler.com.br;service@mettler.com.br

France Mettler-ToledoAnalyseIndustrielleS.A.S.

 30,Bld.deDouaumont,FR-75017Paris,France

Phone +33 1 47 37 06 00

 e-mailmtpro-f@mt.com

Germany Mettler-ToledoGmbH

 Prozeßanalytik,Ockerweg3,DE-35396Gießen

 Phone+49641507-444

 e-mailprozess@mt.com

Switzerland Mettler-Toledo (Schweiz) GmbH

 ImLangacher,CH-8606Greifensee

Phone +41 44 944 47 60

 e-mailProSupport.ch@mt.com

United States METTLER TOLEDO

Process Analytics

 900MiddlesexTurnpike,Bld.8,Billerica,MA01821,USA

Phone +1 781 301 8800

Freephone +1 800 352 8763 (only USA)

 e-mailmtprous@mt.com

FormoreaddressesofMETTLERTOLEDOMarketOrganizationspleasegoto:

www.mt.com/pro-MOs

Mettler-ToledoGmbH,ProcessAnalytics,ImHackacker15,CH-8902Urdorf

Phone

+41447296211,Fax+41447296636

Subject to technical changes

PrintedinSwitzerland.52004112

www.mt.com/pro

Mettler Toledo pH electrode InPro® 485Xi Operating instructions

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