Download kanmed Baby Warmer Infant warmer Service Manual
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BabyWarmer ServicemanualKANMED ServiceManual o KANMED BABYWARMER Partno: BW-50-079 / 58 C( 0413 Modifications Any modlffcationson the control unit, control unit eledronics, heating pad, water mattressand baby nest wlllvold K.rrl'IMED's resoonsibilitiestotallv and are not allowedwithout the written consentof KANMED. Caution Pleas€readthls manualcarefully-Incorrectuseand serviceof patientwarmingequipmentmaycause serlouspatientinjury. CONTENTS 1 4 5 6 7 PAGE Introduction Principlesof operation SparePartsand exchangeunits Dismantling-Reassembling Procedures Repairing, Troubleshooting, TemDerature measurement Softwareinformation WiringDiagram Manufaduredby: KANT1ED AB GArdsfogdevSgen 188 SE-16866 Bromma Sweden Tel: +46 8 564 80 630 Fax:+46 I 564 80 639 www.KANMED.se 2005-03-24 Page'l of I BabYWamet SeNicemanualKANIVIED 1 INTRODUCTION BabyWarmer and how to verify thEt it is functioninqproperlywe For a generaldescriptionof the KANIYED from internetin several referto the usermanuat.ln aua"yo, oo not i,uveone it can be downloaded Se www KANI\4ED.se lanquaqes. basrcfunctionsof the KANMEDBabywarmer and how do determinefaults d".*i;ile i;i: .:,il;"';i;t and do smallerrepairs and qualifiedHospital technicians servicepolicvstatesthat only properlytraineddistributor KANIYED's PcB the main on may carryour repajrs technicians ensuresthe deljveryof a i^ii""ij *" ".t'v", ti makeiull use of our PcB exchangeprogram becausethis warranty' PCBwith 3 months replacement testedand calibrated 2 PRINCIPLE OF OPERATION SeealsodiagramPage3 and 9 waterbedfor infants controlled BabyWarmeris an elect callyheatedand precision The KAN14ED pocket in th€ water mattress into a pad, is inserted, which tt consistsof a control unit and a heating power-switchesPS1and PS2' via unit/ control lv ttre p"a is-suppiied r'"iting ii;tr!;i];; fi;;;$" T1, T2 and 13 ir'r" n""ii"g i"d *"t"i"s the helting elementRLandthermistors of the T3 sensesthe temperature while mattress in the i.:n." tf'" t"mperatureofihe water illnaiz heatingelementin the Pad. PS1to limit the element Usingthe informationaboutelementtemperaturesuppliedby T3, the CPIJcontrols. selectedtemperature, the lower than is temp-eiatureto alout +3oc as long as the actual water temperature temperatureis the set when and mattress in the water of the via T1 the cPU monitorsthe temperarure reached,the CPUcontrolsPS1to keep the water temperatureat the set value , psz ina"p"ndent from the cPU and if for 'ome reasonthe temperatureof the water exceeds fi."nfloit the beeperand the overternp 39oC,T2 will switchoff PS2and stopthe heatingaltogetherand alsoactivate 'LED, t l r . e . - w a t c h d o g m o n i t o r s c P U o p e r a t i o n a n d i n c a s_e o f a c P l J f a i | s r e s w i t c h e s o f f h e a t i n g V i a t h e s a SS and also;ctivatesthe beeperand the eledronicfailure LED' is used to sto.e calibrationvaluesfor T1 and T3 input circuits' The EEPRO14 or DCvoltaqe12 - 24 v tne iuppty voltageto the controlunit can eitherbe mainsvoltage115/ 230 V AC but the first choiceof the unit will alwaysbe the simultaneously aotn iupptyvbttaq"scan be connected by the oN/oFF switch or is not presentat start up' ."i". ri'prjrv. Ii ihe main disappears,is switchedolf to unit DC supply RE1will closeand connectthe "safety logic".andall safeiy circuitsare ni"".n tiitt of tf'" *"rming, the CPUissuesa test signalto the the cPU continueto i".iJ au|"ingtf'" .o .ulled ;elf test. only if all tests aie successfullycompletedcan oDerateand startthe warmjng, Page2 of I BabyWarmer ServicemanualKANI\lED Fig.l BLOCKDIAGRAMKBW50 t / "q"4 t l \ \ Et I ii z, o\ r i I _ z S{rl @o@@ Page3 of 8 tr BabYwarmer ServicemanualKANMED 3 SPARE PARTSAND EXCHANGEUNITS 3.1 SPARE PARTS POLICY keepsand suppliesspare parts considerednecessaryto keep a good servicelevel KANII4ED Theseare to be found in the spare part list. of must not b€ replacedunlessyou havethe possibility WARNING: Certaincomponents carefully 5 2 REPAIRING ca|rying out a calibrationof the unit. Study section oeforecarryingo.lt any PCBrepairs. 3.2 EXCHANGE POLICY and runsan exchangeseruicefor the 14ain_ and keeprepairtime low, KANMED To simplifyrepairprocedur€s FrontPcBof the KBw50. Designation MainPCBKBW50, Exch.Unit FrontPCBKBW50,Exch.lJnit Exchange part No. 700-0234-EU 700-0235-EU ExchangelJnitswi||besUppliedatafixedprice(marked:''repairprice''onthespar-e-partspriceIi priceis-equiva|enttotheestimatedaveragerepaircost)independentofthetypeoffau|tiftheretur faultyPCBis foundto be repairable. For returnedfaulty PCBSwhich are found not to be repairable,we offer you to buy an Exchangeunit at a "sellingprice"on the sparcpartspricelist). specialprice(marked w!ll an extrachargeto coverthe costof the missingcomponents For returnedPcB,swhichare cannibalised, Pice. be addedto the Exchange 3.3 SPAREPARTLIST (SP too-4267 700-0234 700-o234EU 700-o234EU 700-0280 7AO-0324 700 0242 700-0260 700-0259 700-0269 700"0233 700-0001 700-oo79 too-o232 7AO-0244 100-o279 700-027t 700-0268 7AO-O235 100-0264 700-o272 700 0230 700 0253 100-0274 700-0255 700-0459 700-0231 BW-50-07x 1 1 1 1 Bottom Dlate IVIAiNPCB KBW50 l4ainPCBKBW50(repairprice) MainPCBKgW 50 (sellPrice) HousinoKBW50 FuseT3.15A KBW50 PROIVI Grcundcableassv.l.BW50 GroundcableKBW50 Batterv LR6.alkaline 1 10 1 1 1 1 1 10 10 1 FuseT1A 1250V FuseT 2A 1250V 14ains inletand fllter sLud equalisation Potential RearDanelKBW50with label cableassv.7-poolKBW50 Handle Front PCBKBW50 FrontDanelKBW50,with label KBW50 Cableassy.3-pol 1 1 1 1 1 1 1 1 E d q ec o v e l LiqhterPluq 3ooleDIN Dluq{battervcable) Elastoseal 22uF,50v 105'C Cagacitor Transformer ' 'net from inte user manualscan be downloaded Page4of8 Seruice manualKANI\IED BabvWarmer 4 DISMANTLING AND REASSEMBLINGPROCEDURES wARluNG: CAUTION: Alwaysdlsconnectthe mainscable beforeopeningthe Instrument, Work only on properlygroundedstatic free working stationsfollowingESDrules. The following proceduresare descrlbedbelow : 4.1 SOTTOMPLATE 4.2 RUBBER EDGECOVERS 4.3 MAINPCB 4.4 FRONT/ REARPANEL 4,5 FRONT PCB 4,6 HANDLE 4,I BOTTOM PLATE . . . Placethe instrumentupsidedown Removethe 6 screws Slidethe bottom plate towardsthe front panel until it comesfree from the rear edge cover and then lift off the bottom plate and disconnectthe ground wlre, Don't forget to reconnectthe ground wire or it may causeshort cuts. 4.2 RUBBER EDGE COVER:; Edgecoversare only removedlf you have to exchangefront or rcar panels. Edgecovers are glued ( ELASTOSEAL A07, se SPL)to the housingbut not to the bottom plate. 1 Breakthe bondingof the glue from the 3 sidesof the housingby applylngforce and if nessecarycut with a to replacethe runneredge. thin bladewithoutdamagingthe painting.Sometimesit will be nessecary 2 Grip the edge cover in a corner and lift it a few mm to free the insidegrooveof the cover from the protrudingpart of the front oe rear panel and pull the cover from the housing REllOUNTING:Apply a thin layer of ELASTOSEAL A07 on that part of the housingthat will be coveredby the edge cover before mounting the edge cover, 4.3 MAIN PCB 1. Dismountthe bottom plate 2. DisconnedconnectorsP1, P4, P5 and P6 (se paqe 12). NoTE: when dlsconnecting/ conneding P1. support the PCBin order to avold heavy bendingwhich will damagecomponents. 3, Removethe 4 pcs PcB-mountingscrews 4, Grip the PcB by the battery holder and relaysand pull the PCBtowardsthe rear panel until sockets JZ8 come free from pins PZ8 on the front panel and then lift the PCBout from the housing 4.4 FROI{T AND REAR PANEL 1. Dismountthe edge cover accordingto procedure4.2 2, Disconnectthe Danelto be removedfrom the l\4ainPCB 3. Removethe 4 screwsthat flt the panelto the housingand then pull off the panelfrom the housing and disconnect th€ groundwire Page c or d BabYwamet SeNicemanualKANI\,4ED 4.5 FRONT PCB 1. Removethe front panel accordingto procedure4.4 2. Removethe 2 nutsandthen pulloff the PCBfrom the panel 4.5 HANDLE (Phillips) throughthe holein the handleand unscrewthe screws Threada screwdriver NOTEr]f for some reasonthe handleis not remounted,the mounting holesfor screwsmust be fitted with lvl5screws(max. length 25 mm) to prevent liquid from enteringthe unit 5 REPAIRING, 5.1 GENERAL usingproper electronic engineers Troubleshootingand repairingshouldonly be carriedout by experienced and circuitdiagramsprovidedin this manual to descriptions toolsand test equipmentand with reference measurement See Doint6 abouttemDerature PCBSERVICE we recommendto use our EXCHANGE 5.2 WARNINGS AND CAUTIONS amplifierN4.connectorP1and WARNING WhenevervoltagerequlatorN7, operational associatedcomponentsare replacedor re-soldered,the KBW50has to be calibrated cando this. according to section7. OnlyKANMED WARNING Whenoperatingthe KBW50with the bottomplateremoved,AC voltagehigherthan 300 v will be exposed,Take precautionsto avoid electricalshocks. WARNING Evenafter disconnectinglvlainsPowerfrom the unit, capacitorsmay still carry voltages.Take care to avoid electricalshocks, cAuTIoN The KBW5ocontainsstatic sensitiveClllos deviceswhich mav be damagedby improper stations handling,Do not handleexcepton properlygroundedstaticfree working Handleall PrintedCircuitBoards(PCB)by thelr edles, do not touchany partsunnecessarily. packing CAUTION All PCB'S sentbackfor repai.or exchangemust be properlypackedin conductive materialorthey will not be repaired!l 6 TEMPERATUREMEASURING EouiDment needed: Precision thermometerwith skinsensor A foam mattress about 50 mm thick Standardhospitalbaby blanket 1. Placethe heating pad in the pocketof the water mattrcss and put it on the foam mattress 2. Tape the skin sensoron the top centre ol the water mattress and cover with the blanket There must be water and no air bubblesin the water mattress,(l\4akesure there is very good contact betweenthe sensorand the water mattressto avoid false readinqs) 3, Start the heating with and note the temperatureof the water mattr€ssabout 10 min after the set temperaturehas beenreached 4. The recorded temperature should be "set temperatu16" +/- 0.soc ' Page6of8 BabYWarmer SeryicemanualKANMED - 0'soc ) :i,?i'ii[:i:f,[":;1H?-"j,x.":il]?3,"J,"i'j"'e,s L +r lirnltatlonr ternperature T1 r2 Element T3 @ @ Note: The T1, T2 and T3 To obtain absolut€ tru€ 20 27 22 KO 12,492 11,942 i-e-p"rat,,e"c 2A 29 36 8.4083 7,/2r.t 23 24 25 26 27 imperature'c Tcozo 37 38 39 40 7,0983 6.8082 6,5314 10,000 9,5722 KA 6,2675 6 , 0r 5 5 5,175r 5,1170 7 SOFTWAREINFORMATION ;:il?l'3l.""'":lii['"?',",.{rui,i:{1,'i"1"'$TJi!ir pi6r'4veisioninaicationtales plac:irr-:Y:l or a remp!L- " '- lows' of 5 flickering consrsLs FlicleringtemP_LEU 25 30 34 Software History p*outu".r'on 1.A2 1_03 1.04 Versionsexlsr: Up to now the followlngSoftware Sw,version Issued 9635 v1.02 96 47 v1.03 v1.04 98 39 serles 1 : groduction hcorooratesTl / T3 tesnng allV1 02 PROM5 ReDlaces acaeotsnew calibration box sens;s 12l24 V external bafierY lmProvedsafetY Page 7 of I ComPatibilitY allV1,02and V1 03 replaces BabYWamer manualKANMED Seruice 8. Wiring Diagram Fig.t3 Wlrlngdiagdm Page I of I