ATI Technologies B12-69 User manual

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O&MManual
B12-69
2-Wire WetOxidant
GasTransmitter
HomeOfficeEuropeanOffice
AnalyticalTechnology,Inc.ATI(UK)Limited
6Iron BridgeDriveUnit 1& 2GateheadBusiness Park
Collegeville, PA 19426 Delph NewRoad, Delph
Phone: [phone] SaddleworthOL3 5DE
610-917-0991Phone: [phone]
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Web: www.Analyticaltechnology.com

Model B12-69WetOxidantGasTransmitter
O&M Manual-2 -
Rev-G, 7/15
TABLEOFCONTENTS
INTRODUCTION...........................................................................................................................................4
SPECIFICATIONS.........................................................................................................................................6
INSTALLATION............................................................................................................................................7
MECHANICAL MOUNTING.......................................................................................................................7
ELECTRICALCONNECTION.......................................................................................................................9
WETOXIDXANTGASSENSORASSEMBLY...........................................................................................11
OPERATION...............................................................................................................................................13
TRANSMITTER TEST POINTS...............................................................................................................13
DIGITAL DISPLAYOPTION....................................................................................................................14
CALIBRATION............................................................................................................................................15
ZERO ADJUSTMENT..............................................................................................................................15
SPAN ADJUSTMENT..............................................................................................................................15
SENSOR RESPONSE TEST...................................................................................................................16
MAINTENANCE..........................................................................................................................................17
SPAREPARTSLIST..................................................................................................................................18

Model B12-69WetOxidantGasTransmitter
O&M Manual-3 -
Rev-G, 7/15
TABLEOFFIGURES
FIGURE 1-TYPICAL INSERTION SYSTEM INSTALLATION (ATI-0274)................................................................... 4
FIGURE 2-TYPICAL FLOW THROUGH SYSTEM INSTALLATION (ATI-0223).......................................................... 5
FIGURE 3-NEMA-4X TRANSMITTER ENCLOSURE DIMENSIONS (ATI-0198)....................................................... 7
FIGURE 4-EXPOLSION-PROOF TRANSMITTER ENCLOSURE DIMENSIONS (ATI-0226)......................................... 8
FIGURE 5-WET OXIDANT GAS SENSOR DIMENSIONS (ATI-0276)..................................................................... 8
FIGURE 6-ELECTRICAL CONNECTIONS (ATI-0181).......................................................................................... 9
FIGURE 7-ELECTRICAL CONNECTIONS (ATI-0182)........................................................................................ 10
FIGURE 8-WET OXIDANT GAS SENSOR ASSEMBLY (ATI-0265)..................................................................... 11
FIGURE 9-TRANSMITTER CONTROLS &TEST POINTS (ATI-0227).................................................................. 14

Model B12-69WetOxidantGasTransmitter
O&M Manual-4 -
Rev-G, 7/15
INTRODUCTION
The SeriesB12-69 isatwo-wiretransmittersystemdesigned forusewithaspecialoxidant gas
sensor(forCl2,Br2,O3orClO2)suitableforuseinverywet environments.It providesalowpowermethod
ofmonitoringchlorine gasinapplicationswhereexcessivemoisturecausesrapidblinding ofstandard
oxidant gassensors.
Transmitters arehoused inaNEMA-4Xpolystyrene enclosure(Figure3)suitableforinstallation
invirtuallyanyenvironment. The sensorcableiswiredto the properterminalsinthe transmitterthrough
the Pg11 cablegland located inone ofthe enclosureknockouts.One cablegland and one ½”conduit
hub issupplied forcustomerinstallation. AnoptionalLCD provideslocalindication ofgasconcentration
on thefront oftheenclosure. The displayissuppliedonlywhenspecified onthe order,andcannot be
added in the field.
B12 Transmitters arealsoavailableinanexplosion-proofversion. The explosion-proofversion is
housedinagalvanizedsteelenclosure(Figure4)rated forClass 1,Div.1,GroupsB,C,&Dlocations.
LCD isnot availableon the XPversion.
Figure1showsatypicalinsertionB12-69gasmonitoringsystem.The sensorisshownthreaded
intoa blind flange ofa vent stack.
Figure1 -TypicalInsertionSystemInstallation(ATI-0274)

Model B12-69WetOxidantGasTransmitter
O&M Manual-5 -
Rev-G, 7/15
Figure2showsatypicalflowthrough B12-69gasmonitoring system.The sensorisshownwith
the lowvolumeflowcell inplace. Ifused ininsertion applications,thelowvolumeflowcellmustbe
removed.
Figure 2 -TypicalFlow Through SystemInstallation(ATI-0223)

Model B12-69WetOxidantGasTransmitter
O&M Manual-6 -
Rev-G, 7/15
SPECIFICATIONS
Type: Wet Oxidant Gasessuch asCl2,Br2,andClO2
Range: 0-10 PPMMin., 0-100 PPM Max.
Accuracy: ±0.2 PPM at constant temperature
Electronic Repeatability: ±1%ofspan
Electronic Linearity: ±0.5%ofspan
Output: Loop-powered 4-20 mA, 675 ohmsmaximumat 24 VDC
Power: 12-28 VDC
Display: None. OptionalLCD available.
Enclosure: NEMA4Xpolystyrene
Explosion-proofcast iron optional, Class 1, Div. 1, GroupsB,C, &D.
Controls: Zeroand span potentiometers mounted on transmittercircuit board
Operating Temperature: -5ºto+55ºC
Sensor: Model69Wet Oxidant GasSensor
Weight: 0.25 Lbs(0.12Kg.)

Model B12-69WetOxidantGasTransmitter
O&M Manual-7 -
Rev-G, 7/15
INSTALLATION
Installation ofaB12 Transmitterrequiresmechanicallymounting the enclosureand connecting
DC powertothesystem.In addition, thesensormustbe installed asshownineitherfigures1or2and
wired to the properterminalsin the transmitter.
MECHANICALMOUNTING
The NEMA4Xtransmitterenclosureissurfacemounted usingscrewsinserted throughthe blind
mounting holesaccessiblebyremovingthetransmittercover.Figure3showsthe centertocenter
mounting holedimensionsforthisenclosure. Ifrigidconduitisto be used forwiringthetransmitter,the
transmittercan be supported directlyfromthe conduitsystemwithout the useofmountingscrews.The
transmitterweighsonly4ounces,sonormalconduitsupportswillbe adequate. If conduitistobe used,
be surethat theconduitissealedat the point wereitenters thetransmitter.Otherwise, condensationin
the conduit systemcan drain into the transmittercausing failure ofthe electroniccircuit board.
CAUTION:When removingthecoverofatransmitterwith the LCD option, donot trytoseparate the
coverfromthe enclosurebasebymorethan a fewinches.The LCD ishardwired to thetransmittercircuit
board, and the displaycable isonlya fewincheslong.
Figure 3 -Nema-4XTransmitterEnclosure Dimensions (ATI-0198)
(SHOWNWITH DISPLAYOPTION)

Model B12-69WetOxidantGasTransmitter
O&M Manual-8 -
Rev-G, 7/15
Explosion-prooftransmitterenclosuresshouldbe supportedbytheconduitsystemand the
installation should include properconduitsealsasrequired bylocalelectricalcode.
Figure 4 -Expolsion-ProofTransmitterEnclosureDimensions (ATI-0226)
The backofthe insertion sensorisa1¼"MNPTpipethread. The sensorisnormallythreaded
into ablindflange orpipesaddlewhichisusedto mount tothevent. The sensorshouldbe installed
perpendiculartotheairflowand shouldbeinserted farenough intothevent sothat the sensortipisat
least½"into the stack. The 1¼”adapterforsensormountingmust be supplied bythe user.
The sensorinaflowconfigurationisused inconjunction withthe lowvolumeflowcell (see Figure
2)to provideforsampleto be delivered to the sensorusing apumporthe samplepressurefrom the vent
stack.The sensorsimplythreadsintothe lowvolumeflowcelland¼"hosebarbfittingsareprovided for
inlet and outlet connections.
Figure 5 -WetOxidant Gas SensorDimensions (ATI-0276)

Model B12-69WetOxidantGasTransmitter
O&M Manual-9 -
Rev-G, 7/15
ELECTRICALCONNECTION
B12-69transmitters aresuppliedwith agland sealforthesensorwireanda½"conduithubfor
output loop connection. The sensorconnectsto terminalblockTB2on the transmittercircuitboardas
showninFigure6. The outputloopwiringisconnected toTB1asshown inFigure6. The explosion-
prooftransmitterelectricalconnectionsareshowninFigure7.
Figure 6 -Electrical Connections (ATI-0181)

Model B12-69WetOxidantGasTransmitter
O&M Manual-10 -
Rev-G, 7/15
Figure 7 -Electrical Connections (ATI-0182)