Riken Keiki RI-215A User manual

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Air Quality Monitor
RI-215A
Instruction Manual
PT3E‐0064

RI-215A Operator’s Manual2 • Warranty
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Warranty
RIKENKEIKI.,warrantsgasalarmequipmentsoldbyustobefreefromdefectsin
materialsandworkmanship,andperformanceforaperiodofoneyearfromdateof
shipmentfromRIKENKEIKI.Anypartsfounddefectivewithinthatperiodwillbe
repairedorreplaced,atouroption,freeofcharge.Thiswarrantydoesnotapplytothose
itemswhichbytheirnaturearesubjecttodeteriorationorconsumptioninnormalservice,
andwhichmustbecleaned,repaired,orreplacedonaroutinebasis.Examplesofsuch
itemsare:

AbsorbentcartridgesBatteries
PumpdiaphragmsandvalvesFilterelements
Fuses

Warrantyisvoidedbyabuseincludingmechanicaldamage,alteration,roughhandling,or
repairsproceduresnotinaccordancewiththeinstructionmanual.Thiswarrantyindicates
thefullextentofourliability,andwearenotresponsibleforremovalorreplacementcosts,
localrepaircosts,transportationcosts,orcontingentexpensesincurredwithoutourprior
approval.
THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY AND ALL OTHER WARRANTIES
AND REPRESENTATIONS, EXPRESSED OR IMPLIED, AND ALL OTHER OBLIGATIONS
OR LIABILITIES ON THE PART OF RIKEN KEIKI., INCLUDING BUT NOT LIMITED
TO THE WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR
PURPOSE. IN NO EVENT SHALL RIKEN KEIKI., BE LIABLE
FOR INDIRECT,
INCIDENTAL, OR CONSEQUENTIAL LOSS OR DAMAGE OF ANY KIND CONNECTED
WITH THE USE OF ITS PRODUCTS OR FAILURE OF ITS PRODUCTS TO
FUNCTION
OR OPERATE PROPERLY.
Thiswarrantycoversinstrumentsandpartssoldtousersonlybyauthorizeddistributors,
dealers,andrepresentativesasappointedbyRIKENKEIKI.
Wedonotassumeindemni
fi cationforanyaccidentordamagecausedbytheoperationof
thisgasmonitorandourwarrantyislimitedtoreplacementofpartsorourcomplete
goods.

RI-215A Operator’s Manual Table of Contents • 3
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Table of Contents
Chapter 1: Introduction................................................................................................... 5
Overview ............................................................................................................................................. 5
About the RI-215A............................................................................................................................ 5
Measuring Mode ................................................................................................................. 5
Maintenance Mode.............................................................................................................. 5
Alarm Adjust Mode.............................................................................................................. 5
Specifi cations .................................................................................................................................. 6
About this Manual ............................................................................................................................... 6
Chapter 2: Description .................................................................................................. 7
Overview ............................................................................................................................................. 7
External Description ......................................................................................................................... 7
Case.................................................................................................................................... 7
Cable Assembly..................................................................................................................... 8
Internal Description .......................................................................................................................... 8
Printed Circuit Board........................................................................................................... 8
LCD ..................................................................................................................................... 9
IR Gas Sensor..................................................................................................................... 9
Fuse .................................................................................................................................... 9
Chapter 3: Installation................................................................................................. 10
Overview ........................................................................................................................................... 10
Mounting the RI-215A .................................................................................................................... 10
Wiring the RI-215A......................................................................................................................... 12
Notes on Wiring the RI-215A ............................................................................................ 12
Connecting the Power ...............................................................................................................13
Connecting the RI-215A to a Recorder............................................................................. 13
Connecting the RI-215A to a Controller............................................................................ 14
Connecting the RI-215A to an External Alarm Device....................................................... 14
Start Up .......................................................................................................................................... 14
Introducing Power to the RI-215A ..................................................................................... 14
Warm Up ........................................................................................................................... 14
Preparing to Set the Zero.................................................................................................. 15
Setting the Zero Reading .................................................................................................. 15
Chapter 4: Operation................................................................................................... 16
Overview ........................................................................................................................................... 16
Measuring Mode ............................................................................................................................ 16
Alarm Indications .............................................................................................................. 16
Responding to Alarms....................................................................................................... 16
Analog Output ................................................................................................................... 17
Alarm Point and Ventilation Control................................................................................... 17
Alarm Adjust Mode......................................................................................................................... 18

RI-215A Operator’s Manual4 • Table of Contents
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Verifying the Alarm Point........................................................................................................18
Adjusting the Alarm Point.......................................................................................................18
Chapter 5: Maintenance .............................................................................................. 20
Overview ........................................................................................................................................... 20
Preventive Maintenance................................................................................................................. 20
Daily .................................................................................................................................. 20
Quarterly ........................................................................................................................... 20
Troubleshooting.............................................................................................................................. 20
Replacing Components.................................................................................................................. 21
Replacing the Sensor........................................................................................................ 21
Replacing the Fuse ........................................................................................................... 21
Calibration ......................................................................................................................................... 22
Preparing for Calibration ..................................................................................................... 22
Setting the Zero Reading .................................................................................................. 22
Setting the Response Reading ......................................................................................... 22
Returning to Normal Operation ........................................................................................... 23
Parts List ........................................................................................................................................ 23
Appendix A: Changing the Detection Range ............................................................ 24

RI-215A Operator’s Manual Overview • 5
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Chapter 1: Introduction
Overview
Thischapterbrie fl ydescribestheRI‐215A.ThischapteralsodescribestheRI‐215A
Operator’sManual(thisdocument).Table1attheendofthischapterliststhespeci
fi cations
fortheRI‐215A.

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About the RI-215A
TheRI‐215AAirQualityMonitordetectsthepresenceofCO2(carbondioxide)usingan
infrared(IR)gassensor.TheRI‐215AshowsincreasinglevelsofCO2onitsliquidcrystal
display(LCD).ItalsodisplaysavisualalarmshouldlevelsofCO2exceedtheunit’sfull
scale(e.g.,2,000ppm).AlarmcontactsontheRI‐215Aarealsoprovided,whichenable
youtoconnectanexternalalarmtotheunit.
ThreerangesofgasdetectionareavailablefortheRI‐215A:0‐2,000ppm,0‐5,000ppm,
and0‐9990ppm.Detectionrangesaresetatthefactory.WhenyouorderedtheRI‐215A,
youshouldhavespeci
fi edoneofthesegasdetectionrangesforyourunit.Itbecomes
necessarytochangethedetectionrange,See“AppendixA:ChangingtheDetection
Range”onpage24.
TheRI‐215Aoperatesinthreemodes:MeasuringMode,MaintenanceMode,andAlarm
AdjustMode.
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Measuring Mode
MeasuringModeisthemodeinwhichtheRI‐215Adetects,measures,anddisplaysCO2
(normaloperation).
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Maintenance Mode
MaintenanceModeallowsyoutoperformmaintenancetasks.Thesetasksinclude:
•adjustingthezerosetting
•adjustingthespansetting
•changingthedetectionrange


CAUTION: TheRI‐215AisnotinoperateasagasmonitorwhenyouareinMaintenanceMode.
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

Alarm Adjust Mode
AlarmAdjustModeallowsyoutoverifyandchangethealarmpoint.

RI-215A Operator’s Manual6 • Specifications
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Specifications
Table1listsspeci fi cationsfortheRI‐215A.
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Table 1: Specifications
PowerSource24VACor24VDC
TargetGasCO2(carbondioxide)
SamplingMethodDiffusion
AreaClassi fi cationIndoor,nonhazardouslocations
SignalOutput4to20mA
Accuracy±5%offullscale
Fuse10.5A,125V(5mmx20mm)
1A0.5A,250Vfuseisanacceptablereplacement.
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About this Manual
TheRI‐215AOperator’sManualusesthefollowingconventionsfornotes,cautions,and
warnings.
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
NOTE:Describesadditionalorcriticalinformation.



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CAUTION: Describespotentialdamagetoequipment.




WARNING: Describespotentialdangerthatcanresultininjuryordeath.

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MethodofconfirmationforCEmarkingtype
TheCEmarkingislabeledonthedetectorincaseofcomplywithCEmarking.Please
confirmtheinstrumentspecificationbeforeusing.PleasereferDeclarationofConformity
thatisattheendofthismanualifyouhaveCEmarkingtype.
YoucanconfirminstrumentspecificationtoseetheCEmarkingasfollows.













CEmarkinglabel(Backsideofinstrument)
CEmarking

RI-215A Operator’s Manual Overview • 7
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Chapter 2: Description
Overview
ThissectiondescribestheexternalandinternalcomponentsoftheRI‐215A.
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External Description
Case
TheRI‐215A’ssteelcaseisradiofrequency(RF)‐resistant.Itissuitableforinstallationin
indoorareaswheregeneralpurposeequipmentisinuse.
Thecasehasafronthousingandabaseplate,whichsnaptogether.Thefronthousinghas
aLCDwindow,whichisshowninthefrontviewofFigure1.
LCD Display Window
Front View Mode Switch
Up/Alarm Switch
Down Switch
Set/Calibration Switch
Back View
Cal Gas Inlet Rubber Cover
Bottom View
Figure 1: Component Location of the RI-215A
Cable Connector
Entry Slot

RI-215A Operator’s Manual8 • Internal Description
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Onthebottomofthefronthousingisaseriesofslotsandacalibrationport.Theslots
allowthetargetgassampletoentertheIRgassensorintheRI‐215A.Thecalibrationport
iscoveredwitharubbercap.Thecalibrationportaccepts1/
4‐inchID(insidediameter)
fl exibletubing.Aseriesofswitchesareaccessibletotherightofthecalibrationport,as
showninFigure1onpage7.Theseswitchesinclude:
•Mode(M)
•Up/Alarm()
•Down()
•Set/Calibration(S)
Thebaseplatehasawireentryslotforthecableassembly.Thecableassemblyconnects
directlytotheprintedcircuitboardinsidethecasethroughthecableentryslot.Thecable
assemblyisusedtoconnecttoanexternalpowersource.Youalsouseittomake
connectionstoanexternalalarmandtoamonitoringorrecordingdevice.Thebaseplate
hastwomountingholesforconvenientmountingonverticalsurfacesatthemonitoring
site.

Cable Assembly
Thecableassemblyconnectstoasix‐pinreceptacleontheprintedcircuitboardthrougha
slotontherearofthecase.ItallowsyoutomakeexternalwiringconnectionstotheRI‐
215A.


Internal Description
Printed Circuit Board
OntheprintedcircuitboardislocatedtheIRgassensor,LCD,andfuse.Connectedtothe
printedcircuitboardisthecableassembly.
TheprintedcircuitboardconvertstheoutputoftheIRgassensortoa4‐to‐20mAsignal
(thatisproportionaltothedetectionrangeoftheRI‐215A).Theprintedcircuitboardalso
displaysadigitalreadingontheLCD.
Theprintedcircuitboardhasfourswitches:Mode(M),Up/Alarm(,Down(),and
Set/Calibration(S).Theseswitchesarelocatedatthebottomoftheprintedcircuitboard
beneaththegassensor.Table2listseachswitchanditsfunction.

Table 2: Model RI-215A Program Switches
Switch Function
Mode (M) Enters Maintenance Mode
Up/Alarm()• Increases the setting on the LCD
• Displays the alarm point
Down () • Decreases the setting on the LCD
Set/Calibration (S) • Prepares a setting to be changed
• Enters a new setting

RI-215A Operator’s Manual Internal Description • 9
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LCD
The LCD is mounted to the printed circuit board. The LCD shows the current gas reading
of the RI-215A’s target gas. The LCD also shows operational messages when the RI-215A
exceeds its full scale.
IR Gas Detector
The IR detector uses infrared light and an infrared sensor to detect CO2. A small infrared
light source is located in the detector. As CO2 enters the detector, it absorbs infrared light
in a characteristic way as the concentration increases. The infrared sensor detects this
change in infrared light and the unit converts this to a gas concentration.
Fuse
One extractor-type fuse protects the AC line circuitry from short circuit or overload. The
fuse is rated at 0. 5A, 125 V. See “Parts List” on page 23.

RI-215A Operator’s Manual10 • Overview
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Chapter 3: Installation
Overview
ThischapterdescribeshowtoinstalltheRI‐215Aatthemonitoringsite.Thissectionalso
includesprocedurestomakepowerandotherwiringconnectionstotheRI‐215A.


Mounting the RI-215A
CAUTION: TheRI‐215Aissuitableforinstallationinindoorareaswheregeneralpurpose
equipmentisinuse.



1. Selectamountingsitethatisrepresentativeofthemonitoringenvironment.Consider
thefollowingwhenyouselectthemountingsite:
•SelectasitenearthesamplingareainwhichtheRI‐215Aisnotlikelytobe
bumpedordisturbed.
•Choosealocationnotsubjecttosigni
fi cantairmovement,forexample,nearanair
conditioningorheatingvent.
•MounttheRI‐215Ainanareanotsubjecttolargetemperatureandhumidity
changes.
•MounttheRI‐215Aonthewallatleastsixfeetfromthe
fl oortominimizethe
possibilityofsomeonebreathingontheunit.TheexhaledCO2maycausean
alarm.
•Makesurethereissuf
fi cientroomtomakewiringconnectionsthroughtheback
oftheunit,andtoremovetheunitfromthebaseplatetoperformmaintenance,
suchasreplacingthefuse.
2. Forwall‐mounting,removethebaseplateoftheRI‐215A.
•Usingasmallscrewdriver,pressdownonthesmalltabontopofthe
ModelRI‐215A.
•Whilepushingdownonthetab,gentlymovethebaseplateawayfromthefront
housingoftheRI‐215A.


CAUTION: BeverycarefulnottopullonthecableassemblyconnectedtotheRI‐215A’sinternal
printedcircuitboardwhenremovingthebaseplate.Pullingonthecableassembly
maydamagetheprintedcircuitboard.



•Completelyseparatethebaseplatefromthefronthousing.