CO2METER COM TR250Z User manual

TR250Z Oxygen Sensor

User Manual

Models

CM‐013425%O2Transmitter

CM‐0134‐WT25%O2TransmitterwithTubeSampling

CM‐015025%O2withMountShield

CM‐016095%O2Transmitter

CM‐0160‐WT95%O2TransmitterwithTubeSampling

CM‐016195%O2withMountShield

TR250Z Oxygen Transmitter – Manual

Table of Contents

TABLEOFCONTENTS................................................................................................................2

WELCOME...............................................................................................................................3

IMPORTANTSAFEGUARDS.......................................................................................................3

PACKAGECONTENTS...............................................................................................................4

SOFTWARE..............................................................................................................................4

MINIMUMSYSTEMREQUIREMENTS........................................................................................4

DESCRIPTIONS.........................................................................................................................5

THEORYOFOPERATION..............................................................................................5

STANDARDOPERATION...........................................................................................................6

TERMINALCONNECTORS.............................................................................................6

POWERINGTHEUNIT..................................................................................................7

0‐10VOUTPUT(OPTIONAL).......................................................................................7

LCDDISPLAY............................................................................................................7

CALIBRATION...........................................................................................................................7

CALIBRATINGUSINGMODBUS....................................................................................7

CALIBRATINGUSINGGASLAB........................................................................................7

MANUALCALIBRATION...............................................................................................8

MODBUS/RS‐485.................................................................................................................10

INPUTREGISTERS....................................................................................................10

HOLDINGREGISTERS...............................................................................................10

DEVICESPECIFICATIONS.........................................................................................................11

SUPPORT...............................................................................................................................12

WARRANTY...........................................................................................................................12

RETURNS...............................................................................................................................12

LIABILITY...............................................................................................................................13

CONTACTUS..........................................................................................................................13

TR250Z Oxygen Transmitter – Manual

Welcome

ThankyouforpurchasingtheTR250ZOxygenSensor.TheTR250Zisalonglife25%or95%

oxygenleveltransmitterthatprovidesmultipleanaloglinearoutputsofO2concentrations.It’s

designedtobearugged,maintenance‐freeadd‐onforOEMsorcanbeusedasadesktopdevice.

Inaddition,itcanbecalibratedinnormalair,orcanuseacalibrationgasofanyknownoxygen

concentration.

Ourgoalistomakehigh‐quality,low‐costgasdetectionandindoorairqualityproducts

availabletoyou.

Pleasetakesometimetoreadthroughthismanualinordertogetthemostoutofyourmeter.

Makesuretovisitourwebsiteregularlytofindmoreinformationaboutthisproductandto

downloadthesoftwarefree.Onceyoudownloadandinstallthesoftware,youcanusethe

“Checkforupdates”functionundertheHelpmenutosearchfornewupdates.Pleasealsopay

specialattentiontotheimportantsafeguardsshownonthepagesahead.

Important Safeguards

Toreducetheriskoffire,electricalshockand/orinjurytopersons,basicsafetyprecautionsshould

alwaysbefollowedwhenusingelectricalappliances,includingthefollowing:

1. READALLINSTRUCTIONSBEFOREUSINGTHISDEVICE!

2. Useonlythesuppliedpowersupplytooperatetheunit.

3. Ensurethatwhensamplinginaclosedenvironmentthatthetubesaresecurelyfashionedtothe

device.

4. Donotoperatewithablockedoffsamplepath.

5. Donotoperatethedeviceifitismalfunctioning.

6. Donotinstallthedeviceoutsideinexposedconditions.Duetothenatureofthedesignthe

enclosurecannotbemadewater‐tightandtheunitmustnotbeexposedtowater.

7. Donotoperatethedevicewiththecoverdetached.

SAVE THESE INSTRUCTIONS!

TR250Z Oxygen Transmitter – Manual

Package Contents

Pleaseverifythatyourpackagecontainsthefollowingitemsbeforeusingtheunit:

Contents:

(1)Meter

(1)CertificateofCalibration

(1)UserManual

(1)Powersupply

(1)2MeterUSBtoRS‐485Cable

(1)ScreenBreather

Software

OurfreeGaslab®softwareletsyouautomatethecalibrationprocessaswellaslogdata.Whileitisnot

requiredtousethesensor,youmayfindituseful.ToinstallGaslab,gotothe“Downloads”page(see

linkbelow)atCO2Meter.com.Forgeneralinformationaboutthesoftware,refertotheGasLab®User

Manual.http://www.co2meter.com/pages/downloads

IMPORTANT:YOUMUSTINSTALLTHESOFTWAREBEFORECONNECTINGYOURDEVICETOYOURCOMPUTER

Byinstallingthesoftwarefirst,youwillensurethattheproperdriversareautomaticallyinstalledon

yourcomputerwhenyouplugintheUSBdeviceforthefirsttime.

Minimum System Requirements

Toutilizeourfreesoftware,yourcomputermustmeetthefollowingrequirements:

WindowsXPSP3orhigher

Microsoft.NetFramework3.5SP1

Pentium4(ornewer)operatingat2.4Ghzorfaster

1GBofRandomAccessMemory(RAM)

Harddiskspacewithatleast20Megabytes(MB)free(200+MBrecommendedforlogsand

applicationfiles)

Softwareiscompatiblewith64‐bitoperatingsystemsandisfullytestedwithWindows.

ToinstallGaslab,clickonthe“InstallNow”linkandthenselect“Run”whenpromptedbyyourbrowser

(asshownonError!Referencesourcenotfound.).Followthestepsandinstructionspromptedbyyour

computer’soperatingsystem.Makesureyouhaveadministratorprivilegesinordertoinstallthis

program.

TR250Z Oxygen Transmitter – Manual

Descriptions

Display–Maininterfacetoviewcurrentsensorreadingsandmenustate.Willblink“STRT”upon

applyingpowerwhilethesensorwarmsupandstabilizes.

LEDs–areinforlowerrightcorneroftheunitonthemainPCBandarelabeledS,EandP.

SLED–StatusLED.Blinkseverytimeacompletemeasurementcycleisperformedandthevalueis

updated.Serve’sasaheartbeatfortransmitteroperation.

ELED–ErrorLED.Willlightifanyabnormalconditionsaredetectedwithinthedevice,primarilythe

sensorfallingoutofitsrecommendedoperatingspecificationswilltriggerthislamp.

PLED–PowerLED.Willbeoncontinuouslywhenpowerisappliedtotheunit.

Buttons‐TheunithasthreesurfacemountbuttonsabovetheLEDsonthePCB.Theycanbegentlyand

carefullypressedwithyourfinger.Thesebuttonsallowyoutoaccessallaspectsofsensorsoperation

andtestorcalibratedifferentfunctionalmodules.

Theory of Operation

Thezirconiaoxygensensorutilizessolid‐stateelectrochemicalreactionstoproduceavoltage

proportionaltothecurrentoxygen.Thisvoltageisthendigitalizedandfilteredtoausablevalue.The

oxygensensorhasalsobeenfactorycalibratedtomeetspecifications.

TR250Z Oxygen Transmitter – Manual

Standard Operation

TheO2transmitterscomesfactorycalibratedforeasyinstallation.Duringitslifecyclecalibrationmay

becomeperiodicallynecessary.WerecommendperformingaspanO2calibrationeverymonthfor

guaranteedoperationandensuredaccuracy.Noothercalibrationisnecessaryduringthelifecycleofthe

sensor.

Terminal Connectors

1. VDC=G‐G+

2. O24‐20mA=SIGGND

3. RS‐485INTERFACE=ABGND

4. RESET=RST

TR250Z Oxygen Transmitter – Manual

Powering the Unit

Theunitcanbepoweredbyhardwiring24VDCpowerthroughtheMDCM‐4FP‐2MCable(included)but

samplingunitscanalsobepoweredbytheincluded24VDCInternationalwallpowersupply.

0-10V Output (Optional)

Togeta10voltspan(2‐10voltinpractice)froma4‐20mAline,adda500ohmresistorfromsignalto

ground.500ohmsx.004amps=2voltsand500ohmsx.020amps=10volts.

Installtheresistoratthereceivingend,asthiseliminatesallvoltagedropsfromresistanceinthewire.

4‐20mAand2‐10Vareusedsoitcanbedeterminedifthetransmitterisactuallypresent.Lessthan4mA

or2V:notransmitter,notconnectedornosignal.

LCD Display

TheLiquidCrystalDisplay(LCD)screenshowsthefollowingfeatures:

CO2inpercentageformat(##.##%)for100%

Calibration

Thecalibrationprocessvariesdependingonthetypeofunitandwhetherithasoptionaldatalogging

functionalityornot.Allunitsarefactory‐calibratedwithmultiplereferencepointsofgas,andhavebeen

verifiedtobeaccuratewithintheirspecificfunctionalitybeforeshipment.However,iftheunitis

severelyjoltedorotherwisemechanicallydisturbed,thesensorcandriftrequiringrecalibration.All

calibrationproceduresfollowasingle‐pointcalibrationroutinethateffectivelyshiftsthezero‐pointof

theO2sensor.

CalibrationmaybeperformedviaMODBUS,manually,orbyaUSBconnectiontoaPCrunningGasLab®

software.

Calibrating using MODBUS

CalibrationviaMODBUSrequiresanRS‐485cableandassumesknowledgeofpropercoding.Register

valuesarelistedattheendofthismanual.

Calibrating using Gaslab

InstalltheGaslabsoftwarefirst,thenconnectthesensortoyourPCusingastandardmini‐USBcable.

Calibrationcanbeperformedusingeither0%CO2calibrationgas(typicallynitrogen)orusingafresh

sourceofair,assumedtobeapproximately20.9%O2.

Followtheon‐screenpromptsspecifictoyoursensortoperformthecalibration.

TR250Z Oxygen Transmitter – Manual

Manual Calibration

Manualcalibrationisperformedusingthe3on‐boardbuttonsandtheservicemenuonthedisplay.To

entertheservicemenuthebuttonsmustbepressedinafactory‐setorder.Thiscodecanbecustomized

beforeshipmentbutbydefaultwillbe1‐2‐3.Thebuttonsmustbepressedwithinahalfsecondofeach

other,ortheunitwillreturntostandardoperatingmode.Whenintheservicemenutheunitwillnot

updatethecurrentO2readings.Onceyouenterthemenuthedisplaywillread“1234”orfor1second,

thentheProductIdentificationCodewillbedisplayed.Thiscodeisimportant,asitwillidentifywhich

manualcalibrationprocedurebelowyoushoulduse.

Product Identification Code

Afterpressingbuttons1‐2‐3,theunitwilldisplay“1234”,followedbya4‐digitProductIdentification

Code(PIC).Youmustknowyoursensor’sPICtoproperlycalibrate.

1. IfthePICis“1195”or“1225”,followthe1195/1225CalibrationProcedure

2. IfthePICis“1295”or“1395”,followthe1295/1395CalibrationProcedure

1195/1225/1425 Calibration

Procedure

Fresh Air Calibration

1. Allowsensortostabilizeforatleast1hour

2. Ensurethesensorisexposedtofreshair

3. Press123toentertheservicemenu.Thedisplaywillflash1234andthePIC

4. Press2toentertheOxygensubmenu

5. Press2againtostartthecalibration

6. Press3toSave.

Note:Steps3‐6mustbedonequicklyorthesensorwillexitthecalibrationmode.Youcanminimizethis

byrememberingthesequence123223toperformmanualfreshaircalibration.

Zero Point Calibration using 100% Nitrogen

1. Allowsensortostabilizeforatleasthour

2. Apply100%NitrogenCalibrationGastoSensor

3. Wait5minutesforstablereadings

4. Press123toenterservicemenu.Thedisplaywillflash1234andthePIC

5. Press2toentertheOxygensubmenu

6. Press1tocalibrateto100%Nitrogen

7. Press3toSave.Nonumberswillbedisplayeduntilthesensorisexposedtooxygenagain

Note:Steps4‐7mustbedonequicklyorthesensorwillexitthecalibrationmode.Youcanminimize

thisbyrememberingthesequence123213toperformmanualfreshaircalibration.

TR250Z Oxygen Transmitter – Manual

1295/1395/1495 Calibration

Procedure

Fresh Air Calibration

1. Allowsensortostabilizeforatleast1hour

2. Ensurethesensorisexposedtofreshair

3. Press123toentertheservicemenu.Thedisplaywillflash1234andthePIC

4. Press2toentertheOxygensubmenu

5. Press1tostartthecalibration

6. Press3toSave.

Note:Steps3‐6mustbedonequicklyorthesensorwillexitthecalibrationmode.Youcanminimizethis

byrememberingthesequence123213toperformmanualfreshaircalibration.

Span Calibration using 70% Oxygen (optional)

Toperformaspancalibration,only70%oxygengascanbeused.Ifyoudonothave70%O2testgas,do

notattemptaspancalibration.

1. Allowsensortostabilizeforatleasthour

2. Apply705OxygenCalibrationGastoSensor

3. Wait5minutesforstablereadings

4. Press123toenterservicemenu.Thedisplaywillflash1234andthePIC

5. Press2toentertheOxygensubmenu

6. Press2tocalibrateto70%Oxygen

7. Press3toSave.Nonumberswillbedisplayeduntilthesensorisexposedtooxygenagain

Note:Steps4‐7mustbedonequicklyorthesensorwillexitthecalibrationmode.Youcanminimize

thisbyrememberingthesequence123223toperformmanualfreshaircalibration.

TR250Z Oxygen Transmitter – Manual

Modbus / RS-485

ThesensorsupportMODBUSprotocolsoverRS‐485,unidirectionaltransmissionat9600kbps.Address0

orFE.

ThefollowingModbusregistersareavailable:

Input Registers

1. O2Value,x10

2. RawADCValue

Holding Registers

1. O2SpanValue(4bytefloatingnumber,part1)

2. O2SpanValue(4bytefloatingnumber,part2)

3. O2PotValue

4. 4‐20mAoutputZeroValue

5. 4‐20mAoutputSpanValue(4bytefloatingnumber,part1)

6. 4‐20mAoutputSpanValue(4bytefloatingnumber,part2)

7. ControlRegister

8. StatusRegister

Thefollowingcommandsareavailable:

0x03–ReadHoldingRegister

0x04–ReadInputRegister

0x06–WriteHoldingRegister

TR250Z Oxygen Transmitter – Manual

Device Specifications

MeasuringRange:

25%O2 0‐25%vol.

95%O2 0‐95%vol.

Repeatability:

0‐25%CO2 ±0.05%,±1%of measuredvalue

0‐95%O2 ±0.02%,±1%of measuredvalue

Accuracy

25%/95%±2%fullscale

PowerSupply:

MaximumVoltage 24VDC

MinimumVoltage 20VDC

PowerConsumption 600mA@24VDC

SensorRatings:

LifeExpectancy >15years

MaintenanceInterval Nomaintenancerequired

Warm‐upTime <15min(instantmeasurements)

Outputs:

O2OutputValue4‐20mA,linearlyscaled

2‐10VDCOptional

RS‐485 ModbusInterface

TR250Z Oxygen Transmitter – Manual

Support

Thequickestwaytoobtaintechnicalsupportisviaemail.Pleasesendallsupportenquiresto

[email protected].Inyouremail,pleaseincludeaclear,concisedefinitionoftheproblemandany

relevanttroubleshootinginformationorstepstakensofar,sowecanduplicatetheproblemandquickly

respondtoyourinquiry.

Warranty

Thisunitcomeswitha90-day limitedmanufacturer’swarranty,startingfromthedatetheunitwas

shippedtothebuyer.

Duringthisperiodoftime,CO2Meter.comwarrantsourproductstobefreefromdefectsinmaterials

andworkmanshipwhenusedfortheirintendedpurposeandagreestofixorreplace(atourdiscretion)

anypartorproductthatfailsundernormaluse.Totakeadvantageofthiswarranty,theproductmustbe

returnedtoCO2Meter.comatyourexpense.If,afterexamination,wedeterminetheproductis

defective,wewillrepairorreplaceitatnoadditionalcosttoyou.

Thiswarrantydoesnotcoveranyproductsthathavebeensubjectedtomisuse,neglect,accident,

modificationsorrepairsbyyouorbyathirdparty.NoemployeeorresellerofCO2Meter.com’sproducts

mayalterthiswarrantyverballyorinwriting.

Returns

Iftheproductfailsundernormaluseduringthewarrantyperiod,anRMA(ReturnMaterial

Authorization)numbermustbeobtainedfromCO2Meter.com.Aftertheitemisreceived,

CO2Meter.comwillrepairorreplacetheitematourdiscretion.

ToobtainanRMAnumber,pleasecallCO2Meter.comat(877)678‐4259.WhenrequestinganRMA

number,pleaseprovidethereasonforreturnandoriginalordernumber.

Ifwedeterminethattheproductfailedduetoimproperuse(waterdamage,dropping,tampering,

electricaldamageetc.)orabuse,orifitisbeyondthewarrantyperiod,wewillinformyouofthecostto

fixorreplaceyourdevice.

Ifyouarereturningyourdeviceduetoawarrantyclaim(withanRMAnumber)andyoustillhavethe

unitoriginalpackage,pleaseuseittoshipyourunittous.Pleasemakesuretoincludetheprovided

RMAnumberontheoutsideofthebox,preferablyontheshippinglabel.Makesureyousecuretheunit

insidethepackageproperlytopreventanydamageduringtransitthatcouldvoidyourdevice’s

warranty.Finally,pleaseshipyourdevicetotheaddressshownunderthe“ContactUs”sectionbelow.

CO2Meter.comwillnot,underanycircumstances,beresponsibleforyourshipmentexpensesandno

refundwillbeissuedforshippingchargesnecessaryforyoutoshiptheunittous.

TR250Z Oxygen Transmitter – Manual

Liability

Allliabilitiesunderthisagreementshallbelimitedtotheactualcostoftheproductpaidto

CO2Meter.com.InnoeventshallCO2Meter.combeliableforanyincidentalorconsequentialdamages,

lostprofits,lossoftime,lostsalesorlossordamagetodata,injurytopersonorpersonalpropertyor

anyotherindirectdamagesastheresultofuseofourproducts.

Weareheretohelp!

Ifthetroubleshootingguideabovedoesn’thelpyousolvingyourproblemorformoreinformation,

pleasecontactususingtheinformationbelow.

[email protected]

(877) 678‐4259Tollfree(M‐F9:00am–6:00pmEST)

(866) 422‐2356

www.co2meter.com

Address:

CO2Meter

131BusinessCenter

BuildingA,Unit3

OrmondBeach,FL32174

CO2METER COM TR250Z User manual

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