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  3. DPCMS-RM Dry Potter Corrosion Monitoring Station Riser Mount
DPCMS-RM Dry Potter Corrosion Monitoring Station Riser Mount

Potter DPCMS-RM Dry Potter Corrosion Monitoring Station Riser Mount, DPCMS-RM Owner's manual

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  • What is the purpose of the DPCMS-RM?
    What does the optional PCMPK-1 provide?
    What is contained in the CPRTK2-Coupon/Probe Replacement Test Kit?
PRINTED IN USA PAGE 1 OF 3MFG. #5401181 - REV C
9/08
DPCMS-RM
DRY POTTER CORROSION
MONITORING STATION-RISER MOUNT
Service Pressure: Up to 175 PSIG
Temperature Range: -40°F to 120°F (-40°C to 49°C)
Coupon Holders: Qty. (2) included
Ordering Information
Stock number: 1119547 DPCMS-RM (Dry)
Replacement Kits
Stock number:
1119670 Replacement Coupon Holder Assembly
0090173 CRTK-2 Coupon Replacement Test Kit
0090177 CPRTK-2 Coupon/Probe Replacement Test Kit
Suggested Options:
0090180 PCMPK-1 Potter Corrosion Monitoring Probe Kit
1000040 RBVSRetrotBallValveSwitch(w/ocovertamper)
1000035 RBVS-TRetrotBallValveSwitch(w/covertamper)
Potter Electric Signal Company• 2081 Craig Road, St. Louis, MO, 63146-4161 •Phone:800-325-3936/Canada888-882-1833 •www.pottersignal.com
PatentPending (ShownwithoptionalPCMPK-1)
TheModelDPCMS-RMisaCorrosionMonitoringStation-RiserMount
consistingofacouponrackthatisinstalledonadrypiperesprinkler
risertomonitorcorrosioninadryresprinklersystem.TheDPCMS-
RMisdesignedtosimulateconditionswithintheresprinklersystem.
Thecouponrackcanbeisolatedfromtheresprinklerriserandeasily
accessed for servicing and monitoring of test specimens (corrosion
coupons) without interruption to re protection. Test material strip
specimens(corrosioncoupons)areinstalledintothecouponrackby
theuseofcouponholders.
TheoptionalPCMPKcontainsacorrosionmonitoringprobeandpressure
switchthatprovidesnoticationtothere/sprinkleradministratorwhen
there may be an excessive amount of corrosion taking place in the
sprinklerpiping.Thecorrosionmonitoringprobehasaprecisionthinwall
thicknesswhichwilleventuallycorrodethroughallowingthesystemair
pressuretoenterintotheprobeandactuatethepressureswitch.When
thepressureswitchiswiredtothebuildingrealarmpanel,atroubleor
supervisorysignalisgeneratednotifyingthere/sprinkleradministrator.
Thisisthenoticationtoremovethetestcouponsthatwereinstalledat
thesametimeastheprobe,foranalysisontheconditionofthesprinkler
piping.Thecorrosionmonitoringprobeisasingleusedeviceandmust
bereplacedupontheinstallationofnewtestcoupons.
The CPRTK2-Coupon/Probe Replacement Test Kit contains the
necessarycomponentstoremove,replace,andforwardforanalysis,the
corrosion monitoring probe and test coupons from a DPCMS-RM.
Note: The probe is not for analysis. It allows the re sprinkler
administrator to leave the coupons in the system until the
probe activates the pressure switch.
Coupon Rack Installation: (See Fig. 1)
1. Installtheendcapswiththerigidgroovedcouplingsandgaskets
providedontotheendsoftheCouponRack.Theproductlabels
shouldbevisibleandinproperorientationontheoutsideedgeof
thecouponrack.
2. AssemblethetriminaccordancewiththedrawingprovidedinFig.
1ofthisdocument.ThetrimcanbeassembledontheDPCMS-RM
componentsatanytimeduringtheinstallationprocess.Besureto
properlypositionallofthecomponents.
3. InstalltheCouponRackAssemblyinahorizontalandlevelposition
witha1”NPTconnectiontothesprinklerriser.Theproductlabels
mustbeeasilyvisibleintheinstalledposition.
 Theunitshallbeinstalledonthesystemsideofanycontrolvalve.
Wheninstalledonamainhorizontalfeed,itshallbeinstalledinthe
vicinityoftheriser.
Corrosion Coupon Installation (See Fig. 1, 2, 3, & 4)
1. Takecarenottotouchthecouponsbyusingthelatexglovesprovided.
2. Assembleallcorrosioncouponsontothecouponholdersasshown
in Figure 2.
3. Attachcoupontoholderwiththesuppliednonconductivescrew
andnut.Followtheinstructionsprovidedwithcoupon.
4. Install the Coupon Holder Assemblies-quantity (2) in the
recommended1”NPToutletttingonthecouponrackassembly,
asindicatedinFigure4orthelabelonthecouponrackassembly.
5. Openthecouponrackisolationvalve.Be sure to leave the coupon
rack isolation valve open to the re sprinkler system. Verify
that all valves are in the correct position and the corrosion
monitoring station is free of any leaks.
6. Filloutthecouponcardcompletelyforthecouponanalysis.Forwardthe
couponsandcompletedcardtothecouponsupplieraftertherequired
amountoftimeorwhentheoptionalPCMPK-1probeactivatesthe
pressureswitch.
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PRINTED IN USA MFG. #5401181 - REV C
9/08
PAGE 2 OF 3
DPCMS-RM
DRY POTTER CORROSION
MONITORING STATION-RISER MOUNT
Fig. 2 Corrosion Coupon Holder Assembly
Item Number Description Quantity
1Coupon Rack-Riser Mount 1
2Coupon Holder Assembly-2 ½" 2
3Corrosion Coupon (Steel) 2
4Plug-1" (Cast Iron) 2
5Coupling-2½"GroovedRigid 2
6Cap-2½"CapGrooved 2
7Union-1" (Cast Iron) 1
8Elbow-1"FemalexFemale(CastIron) 1
9Nipple-1" Close (Steel) 3
10 Nipple-1" X 2 ½" (Steel) 1
11 Valve-Ball1"(Brass) 1
12 PCMPK-1 (Optional) 1
Fig. 1 DPCMS-RM Assembly
Fig. 4 Corrosion Coupon/Probe Installation Diagram
Outletsareprovidedforthemostcommonsystemsprinklers.
ThesesamplesprinklersareinstalledONLYwhentheiroperation
willnotinterferewiththeoperationofsystemresprinklers.
Theoperationoftestsprinklerscoulddelayorpreventoperation
of system sprinklers.
Fig. 3 Corrosion Monitoring Probe
DWG# 1181-3
1" NPT ½" NPT FEMALE
CONNECTION FOR PS10-1
PRESSURESWITCH
DWG# 1181-2
1
2
3
4
6
9
8
11
12
10
3
2
5
6
4
9
5
Optional
9
7
FLOW
DWG# 1149-2A
FERROUS/STEEL
CORROSION
COUPON
FERROUS/STEEL
CORROSION
COUPON
LOWER
CONNECTION
TO RISER
1
35
4
TOP
BOTTOM
CORROSION
MONITORING
PROBE OR PLUG
2
PLUG
DWG# 1181-5
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PRINTED IN USA PAGE 3 OF 3MFG. #5401181 - REV C
9/08
DPCMS-RM
DRY POTTER CORROSION
MONITORING STATION-RISER MOUNT
Fig. 5 DPCMS-RM Outline Drawing
13.84
1.63
1.63
PLUG
COUPLING,
GASKETS, AND
END CAPS FOR
COUPON RACK
PROVIDED
PCMPK-1 (OPTIONAL)
OR PLUG
3.25
3.25
COUPON HOLDER
ASSEMBLY
COUPON/PROBE
INSTALLATION
DIAGRAM LABEL
COUPON HOLDER
ASSEMBLY
6.52
COUPON
RACK
ISOLATION
VALVE
(NORMAL
OPEN)
13.37
10.67
1” NPT RISER
CONNECTION
(SUPPLIED BY OTHER)
RISER PIPE
DWG# 1181-6
Note: 3½"minimumclearanceheightrequiredtoremovecouponholderfromcouponrack.
DonotinjectanycorrosioninhibitordirectlyintotheDPCMS-RM
astheinhibitorcouldadverselyeffecttheabilityofthecoupons
andprobetoprovideanaccurateassessmentoftheconditionofthe
sprinkler system.
ClosetheDPCMS-RMisolationvalvewheninjectinginhibitor.Open
theisolationvalvewhentheinjectionoftheinhibitoriscomplete.
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