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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 Removalofdirtandresidue ............................................. 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-ToledoGmbHinSwitzerland,theUSA,
theEuropeanUnionandafurthervecountries.
InPro 485X i pH electrode 15
© 02 / 16 Mettler-Toledo GmbH InPro 485X i pH electrode
Printed in Switzerland 52 004 112
1 Introduction
METTLERTOLEDO’scombinationpHelectrodeswith
pNa reference system and temperature sensor offer re-
liablepHmeasurementinsolutionswithanearstable
concentrationofsodiumions.Thiselectrodeofferstop
performanceinharshbrineprocesseswithoxidizing
compounds e.g. chlorine.
Please read through these operating instructions
carefully before commissioning, in order to ensure
trouble-freeuse.
We recommend that you only operate the electrode
in combination with original parts from METTLER
TOLEDO.Operationandmaintenanceshouldbecar-
riedoutonlybytrainedpersonnelandstaffwhohave
read and understood the operating instructions.
2 Safetyinstructions
When cleaning or calibrating the electrode using
solutionscontainingacidsoralkalis,bothprotective
spectaclesandprotectiveglovesshouldbeworn.The
sensorcancontainupto0.3%boricacidbyweigh.
Donottouchtheelectrodeattheplug-incontacts,as
electrostatic discharges can damage the electronics.
3 Product description
Theinscriptiononeachelectrodecontainsthefollow-
ing information:
METTLER TOLEDO Manufacturer of the electrode
InPro
®
485Xi/SG/yyy Typedesignationx=membrane
glass,i=ISMDigital/SG=ancil-
laryelectrode/yyy=rodlengthin
mm
combination pH Typeofelectrode
pH 0…14 (InPro 4850 i) pH measurement range
–10…120°C(14…248°F) Temperaturerangeforoperation
Order No. 52 00X XXX Order number
SEV14ATEX0168X Identicationandnumberof
certicate
IECExSEV14.0025X Identicationandnumberof
certicate
IS/I,II,III/1/ABCDEFG/T6 FMtested
See instruction manual Instruction (Observe the operating
instructions)
In addition, each electrode is allocated a serial
number
ontheredpartoftheplug-inheadtoenable
identication.
en
16 InPro 485X i pH electrode
InPro 485X i pH electrode © 02 / 16 Mettler-Toledo GmbH
52 004 112 Printed in Switzerland
Important!Pleasetakenoteofthefollowingtechnical
specicationsofthispHelectrode:
Referencesystem Sodiumsensitiveglass
membrane
Min. Na
+
concentration 10mg/L whenpH>7;
100mg/L when7>pH>2;
1g/L whenpH<2
4 Installation and commissioning
1. Whileunpacking,checktheelectrodeformechan-
ical damage. Please report any damage immedi-
atelytoyourMETTLERTOLEDOsupplier.
2. Removetheprotectivecapandrinsetheelectrode
forashorttimewithBufferpH=4.01/Na
+
3.9M.
Afterrinsing,theelectrodeshouldonlybelightly
dabbed.AnyrubbingofthepHorthesodium-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. ConnecttheelectrodeandthepHtransmitterwith
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,moduleandcable.
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
BufferpH=4.01/Na
+
3.9Mbuffersolutionwhilestill
connectedtothetransmitter.A2-pointcalibrationis
recommended,e.g.BufferpH=7.00/Na
+
3.9M and
BufferpH=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
© 02 / 16 Mettler-Toledo GmbH InPro 485X i pH electrode
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
with20%NaClsolution.
2. Iftheelectrodeisnotinuseitmustbestoredwith
theelectrodetipimmersedinBufferpH=4.01/Na
+
3.9M.
3. If an electrode is inadvertently stored in a dry con-
ditionforseveraldays,themembranemustbeim-
mersedinBufferpH=4.01/Na
+
3.9M for at least
6 hours.
4. Theplug-inheadshouldoccasionallybechecked
forpossibletracesofmoisture.Ifnecessary,clean
itthoroughlywithdeionizedwateroralcoholand
then dry it off carefully.
7 Removal of dirt and residue
Withasofttoothbrushandwateranydirt/residuecan
easilyberemovedfromtheelectrode.Mildwashing
agents can also be used.
Warning! Solutions containing hydrouorides dam-
age the pH sensitive part of the electrode.
8 Disposal
It is the user’s responsibility to dispose of the sensor
inapropermanner.Thesensorcancontainelectronic
components that require disposal such that no per-
sons or the environment are endangered.
9 Guarantee
Onmanufacturingdefects,12monthsafterdelivery.
10 Storage conditions
We recommend that the electrodes are stored at room
temperature. Keep the electrode tip in the supplied cap
withBufferpH=4.01/Na
+
3.9M.
en
InPro 485X i pH electrode 75
© 02 / 16 Mettler-Toledo GmbH InPro 485X i pH electrode
Printed in Switzerland 52 004 112
–
Notes
Brazil Mettler-Toledo Ind. e Com. Ltda.
AvenidaTamboré,418–Tamboré,
BR-06460-000Barueri/SP,Brazil
Phone +55 11 4166 7400
e-mailmettler@mettler.com.br;service@mettler.com.br
France Mettler-ToledoAnalyseIndustrielleS.A.S.
30,Bld.deDouaumont,FR-75017Paris,France
Phone +33 1 47 37 06 00
e-mailmtpro-f@mt.com
Germany Mettler-ToledoGmbH
Prozeßanalytik,Ockerweg3,DE-35396Gießen
Phone+49641507-444
e-mailprozess@mt.com
Switzerland Mettler-Toledo (Schweiz) GmbH
ImLangacher,CH-8606Greifensee
Phone +41 44 944 47 60
e-mailProSupport.ch@mt.com
United States METTLER TOLEDO
Process Analytics
900MiddlesexTurnpike,Bld.8,Billerica,MA01821,USA
Phone +1 781 301 8800
Freephone +1 800 352 8763 (only USA)
e-mailmtprous@mt.com
FormoreaddressesofMETTLERTOLEDOMarketOrganizationspleasegoto:
www.mt.com/pro-MOs
Mettler-ToledoGmbH,ProcessAnalytics,ImHackacker15,CH-8902Urdorf
Phone
+41447296211,Fax+41447296636
Subject to technical changes
02/2016©Mettler-ToledoGmbH
PrintedinSwitzerland.52004112
www.mt.com/pro
/
