Metal Samples Company MS3500E Manuale utente

MS3500E/3510E

Remote ER Data Logger

MetalSamplesCompany

A Division of Alabama Specialty Products, Inc.

152 Metal Samples Rd., Munford, AL 36268 Phone: (256) 358-4202 Fax: (256) 358-4515

E-mail: [email protected] Internet: www.metalsamples.com

Table of Contents

I. Introduction ......................................................................................................................1

A. InstrumentFunctionOverview .................................................................................1

B. InstrumentPartsList................................................................................................ 2

II. Installation ........................................................................................................................3

A. EnclosureandMountingDetails...............................................................................3

B. BatteryInstallation................................................................................................... 4

C.4-20mALoopInstallation ........................................................................................5

D. Probe-InstrumentConnection.................................................................................. 6

E. DataDownloadConnection(s)................................................................................. 7

III. SetupandOperation .........................................................................................................8

A. Main Menu Overview ............................................................................................. 8

B. Program Setup ...................................................................................................... 10

1. Set Time and Date ..................................................................................... 10

2. Enter Probe ID .......................................................................................... 11

3. StartDataLogging..................................................................................... 12

C. Measure ProbeFunction ....................................................................................... 13

D. ViewStored DataFunctions.................................................................................. 14

E. SetReadingIntervalFunction ................................................................................ 15

F. DownloadingData ................................................................................................. 16

1. Upload to PC ............................................................................................ 16

2. Upload to MS1500E ................................................................................. 25

G. SystemShutdownFunction.................................................................................... 26

H. TestMode Function .............................................................................................. 26

I. DataInterpretation ................................................................................................. 27

1. ProbeReading........................................................................................... 27

2. Metal Loss ................................................................................................ 28

3. Corrosion Rate .......................................................................................... 28

4. 4-20mA Output ......................................................................................... 29

IV. ERTechnique-General .................................................................................................. 30

A. Measurement Theory ............................................................................................ 30

B. ERSensingElements ............................................................................................. 32

C. ERElementPerformance ...................................................................................... 34

D. ERProbe Body Design ......................................................................................... 38

AppendixA-MS3500ESpecifications ................................................................................... 41

AppendixB-Testingthe MS3500E/MS3510E with theERMeterProver .............................. 42

Appendix C - MS1500E Select Probe ID............................................................................... 44

AppendixD-ReturninganInstrument for Repair .................................................................... 47

AppendixE-Warranty .......................................................................................................... 49

AppendixF-InstallationDrawingofMS3500EinHazardousLocation ................................... 50

I. Introduction

A. InstrumentFunctionOverview

TheMS3500E/3510EDataLoggerisdesignedto provide a continuous record ofcorrosiveactivityin

remotelocationsthatareinfrequentlyvisited, such ascross-countrypipelines,andunmannedproduction

platforms.However,thisunitfindsequalapplicationinlocationsthatareinconvenientordifficultto

accessona regular basis, suchasrefineryoverheads,andflue-gasstacks.

TheMS3500E/3510Eiscompletelyself-containedwiththeonboardbatterysystemsupplyingthetotal

powerrequirementfor operation. It canbeusedwithanyof Metal Samples’ ERprobes,orthoseofall

othermajormanufacturers.Onceinplace,itwillautomaticallyreadtheprobeatcustomer-selected

intervalsandstoretheresultingdataintheunit’sonboardmemory.Theonboardmemorywillcollectup

to3,100datapointsbeforedata download is required. The datacollectionintervalisprogrammablein

hourlyincrements.Evenattheminimumdatacollectioninterval(1hour),datadownloadingneedonlybe

performedeveryninetydays.Withmore practical data collection intervals (8 - 12 hours), the unit may

beunattendedfor as longas6-8months between downloading operations.

Anoptical,infrared,RS232communicationlink is provided for datadownloadtoeitheraPCorMetal

Samples'MS1500E portable ERdatalogger.Downloadeddata may beanalyzed,reviewed,or re-

portedbyconventionalspreadsheet,database, or mathematical software packages.

Theinfraredcommunicationlink isanintegralpartoftheintrinsicallysafedesignoftheMS3500E/

3510E.Opticalinsteadofelectrical,thisuniquefeaturepermitsdatadownloadingwithoutremovingthe

instrumentor“memorymodule” fromthehazardousarea.

AnotheruniquefeatureoftheMS3500E/3510Eis the highlevelofonboardintelligence.Thetwo-line,

20-characterLCDallowsvisualreviewofallhistoricaldatainmemoryandreads directly as “total metal

loss”and/or“averagecorrosionrate”. Thisisincontrasttoothercommerciallyavailableunits that store

anddisplayonlytheraw “resistanceratio”thatrequiresadditionalmanipulationtoprovideusefuland

intelligibledata.

TheLCDscreen,togetherwiththe2-keymembranekeypad,provides a user-friendly,interactive,

promptingsystemthatis used for bothsystemsetupanddatareview.ThismakestheMS3500Ethe

mostadvancedunitofits type on the market.

Byaddinga4-20mAcommunication facility, the MS3500E becomes an MS3510E.Thisallows

continuoustransmissionofdata, via a 4-20mAloop,to a plant computer orcentraldatalogger, for

integrationwithotherreal-timeprocessparameters.This data transmissioncanbeaccomplishedwithout

disruptionoftheunit’s basic logginganddatastorageoperations.The 4-20mAloopextends the capa-

bilitiesoftheunittoincludeconventional,in-plant,real-timedatacommunication.

TheMS3500E/3510Eunitusesastainlesssteel NEMA 4X (IP 66) enclosure, makingitsuitableforuse

inthemostextremeofoutdoorconditions.

B.InstrumentPartsList

TheMS3500E/MS3510Eissuppliedwiththefollowingaccessories.

Partno. Qty. Description

ET0133 6 1.5V,AADryCells(Installed)

ET0612 1 4-20maLoop Connector (MS3510EOnly)

IN3500-2 1 OptilinkCable

IN3500-4 1 10 Ft. Probe Cable

IN3500-5 1 MeterProver

IN3500-6 1 SerialPortAdapter

IN3500-7 1 OperationsManual

Uponreceiptoftheinstrument,theusershouldverifythattheabovelistedaccessoriesareincluded.

Anyshortageshouldbereportedimmediately to:

Metal Samples

Phone:(256) 358-4202

Fax:(256) 358-4515

E-mail:[email protected]

II. Installation

A.Enclosure&MountingDetails

TheMS3500E/3510Eenclosureisfabricatedin carbon steel with a baked-on,high-buildepoxy

coating.Theunithasahinged door that is secured,whenshut,byscrew-downclampsthatdiscourage

unauthorizedtampering.TheenclosureisconstructedtoNEMA4X(IP66)weatherproofstandards,

makingitsuitableforthe mostrigorousofoutdoorenvironments.

Theoveralldimensionsoftheunitare12-1/4"(height),9"(width),4-3/8"(depth),makingitaconve-

nientsizetomounteveninthemostconfinedoflocations.Forthebestresults, the instrument should be

mountedwithintenfeetoftheprobelocation.Tofacilitatethis,theunit hasaversatilemountingflange

withfour.31"diameter,mountingholes.Overalldimensionsandmountingholecentersareshownin

Figure1.

Figure 1. MS3500E Dimensions

B.BatteryInstallation

TheMS3500E/3510Einstrument uses six 1.5V,AAsize batteries,connectedinseries,asaprimary

powersource. While anyAAsize battery canbeused,Duracell or ProcellTypeMN1500 or PC1500

batteriesarerequiredtomeettheintrinsicsafetycertificationrequirements.SincetheMS3500E/3510E

operatesinalowpowerconsumptionmodebetweenreadings,batterylifewillbeafunctionofthe

readingintervalandmeasurementtimecyclesetbytheuser.Atthemostfrequentreadinginterval(1per

hour),aminimumbatterylifeoffourmonthsistobeexpected.Morepracticalintervals,suchasevery

12or24hours,willyieldabatterylifeinexcessoftwelvemonths.Generally, to avoid unexpected

powerdrains,batteriesshouldbe replaced once everysixmonths.Intheinstanceofalowreading

interval(1per4hoursorless),threemonthlybatteryreplacementsisadvisable.

Batteriesaremountedin the back of theMS3500E/MS3510E,behindtheinstrumentscreenand

keyboardpanel. Thebatteries are accessed bylooseningthetwothumbscrewsonthe right sideofthe

panel,thenswingingthehingedpanelopentotheleft. Careshouldbeusedwhenopeningandclosing

thepaneltoensure that the internal wiringisnotpinchedordamaged. Oncethepanelisopened,

batteriescanbeinserted or removed fromthespring-loadedretainerasshownbelow.

Figure2. MS3500E BatteryInstallation

C.4-20mALoopInstallation

TheMS3510Eisprovidedwitha4-20mAcommunication outletthatallowscontinuous,real-time

integrationofERcorrosiondatawithotherprocessparametersinthemainplantcomputer.The

4-20mAoutlet port isa2-pinmilitaryconnector (MIL 14S-9SF)onthe base of theunit,marked

4-20mA.Thematingconnector for this outlet (ET0612)issuppliedaspartoftheaccessoriesfor the

MS3510Eunit.Thepositiveleadofthecommunicationloopshouldbeconnectedtothe“A” terminal of

theET0612mating connector,and the negative leadtothe“B”.Theloopcanthen be connected tothe

4-20mAinstrumentoutlet:

Figure 3. MS3510ECurrentLoopTermination

Theloop should bepoweredby 10-24 VDC. Forhazardousapplications,an appropriate Zener

barriershouldbeinstalledintheloop,orpowershouldbesuppliedfromanintrinsicallysaferepeater

powersupply. Typicalhazardousinstallationisshownonpage49.

Corrosion Monitoring Systems

Metal Samples

PIN 'A' (+ CURRENT LOOP)

PIN 'B' (- CURRENT LOOP)

VIEW A-A

2-PIN MALE CONNECTOR

(VIEWED FROM SOLDER-SIDE)

MS3510E Connections

PROBE 4-20

OPTI-LINK

DATA PORT

D.Probe-InstrumentConnection

TheMS3500E/3510E canbemounted directly ontoanER probe, oronto an HA700110-5 probe

adaptorinthecase of a retrievable probeusedinatwo-inch,high-pressure,accessfitting(see Figure

12,p.41).However,inmanyinstancesitiseitherinconvenientorundesirable to mount theinstrument

directlyontothe probe. Forthesecircumstancesa546810,ten-foot, extension cable isprovided.The

extensioncablehasintegralconnectors withaguidingkeywaytoensurecorrectpinalignment when

attached.Thefemaleconnector (MS3106E145-6S) mateswiththe probe, orHA700110-5probe

adaptor,andthe male connector mateswiththecentralterminalonthebase of the MS3500E/3510E

unit.

The length of the extension cable has been carefully determined so as to avoid excessive

signalnoise. Longerextension cablesshouldonly beemployed afterconsultationwith Metal

Samples.

TheextensioncableprovidedwillmatedirectlywithanyMetalSamples’ERprobeorthoseofany

othermajor manufacturer,orwithanHA700110-5 probe adaptor inthecaseofretrievable probes.

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