Izicelo eziphezulu zeZithethi ze-PA zeMizi-mveliso kwiifektri nakwiindawo zokugcina impahla

Kutheni ii-PA Speaker zezeMizi-mveliso zibalulekile kwiifektri

Izakhiwo zoshishino zibonelela ngezinye zezona ndawo zinzima kakhulu ze-acoustic kwihlabathi lanamhlanje elakhiweyo. Phakathi kwengxolo eqhubekayo yoomatshini abanzima, ukugquma okwethutyana kwezixhobo zokuphatha izinto, kunye neendawo ezinkulu nezijikelezayo zemigangatho yemveliso, ukuhambisa unxibelelwano olucacileyo lwe-audio ngumsebenzi wobunjineli onzima kakhulu. Kwezi meko, izixhobo ze-audio zorhwebo eziqhelekileyo ziyasilela ngokukhawuleza okanye zibonakala zingasebenzi ngokupheleleyo. Isithethi se-PA semizi-mveliso senzelwe ngokukodwa ukoyisa le miqobo ye-acoustic kunye neyokusingqongileyo, ukuqinisekisa ukuba imiyalezo ebalulekileyo iyanqumla ingxolo.

Ukusasazwa kwezixhobo ezikhethekileyoiinkqubo ze-PA zoshishinoayisiyonto nje yokwenza kube lula; yimfuneko esisiseko yokhuseleko lweziko kunye nokusebenza kakuhle. Xa amanqanaba engxolo engqongileyo etshintsha rhoqo phakathi kwe-85 dB kunye ne-115 dB, unxibelelwano lwelizwi olungancediswanga alunakwenzeka, kwaye izithethi ezisemgangathweni zongeza nje ingxolo engaqondakaliyo kwindalo esingqongileyo. Ukuqonda umahluko phakathi kwezixhobo zesandi zexabiso lorhwebo kunye nezixhobo ze-acoustic zemizi-mveliso ezakhiwe ngenjongo linyathelo lokuqala ekuyileni inethiwekhi yonxibelelwano yesikhungo ethembekileyo.

Yintoni echaza isithethi se-PA sezemizi-mveliso

Eyona nto iphambili kuyo, isithethi se-PA semizi-mveliso sichazwa kukuphila kwaso kunye nobuchule baso bokukhupha isandi. Ngokungafaniyo nezithethi zorhwebo ezenzelwe iindawo zokuthengisa okanye iiofisi ezilawulwa yimozulu, iiyunithi zoshishino zakhiwe ukuze zikwazi ukumelana noxinzelelo olukhulu lokusingqongileyo. Oku kuquka izivalo ezenziwe nge-ABS enefuthe eliphezulu, i-fiberglass engangenisi i-UV, okanye intsimbi engatyiwayo yomgangatho wolwandle. Ezi zinto zithintela ukuwohloka ngenxa yokuvezwa ziikhemikhali, iinxalenye zomoya, kunye nokungcangcazela okuqhubekayo.

Ngaphakathi, izinto zikhethekile ngokulinganayo. Ii-voice coils kunye nee-driver diaphragms zenziwe ngee-phenolic resins okanye i-titanium endaweni yephepha okanye iiplastiki eziqhelekileyo, ezivumela ukuba zikwazi ukusingatha igalelo eliqhubekayo le-high-wattage ngaphandle kokutsha. Ngaphezu koko, izithethi ze-PA zemizi-mveliso zenzelwe ukusebenza kumanqanaba obushushu aphezulu, zihlala zilinganiswe ngokusebenza okuqhubekayo ukusuka kwi--40°C ukuya kwi-+60°C (-40°F ukuya kwi-140°F). Zikwasebenzisa ii-transformers ezikhethekileyo kwimigca yesandi esasazwayo ye-70V okanye ye-100V, okuvumela ukuba iintambo zisebenze ezinokuthi zijikeleze amawaka eenyawo kwikhampasi yokuvelisa ngaphandle kokonakala okukhulu kwesignali.

Apho izithethi ze-PA zenza ixabiso lokusebenza

Ixabiso lokusebenza kwenkqubo yesithethi se-PA yemizi-mveliso lidlula kude kakhulu ukubhalwa kwelizwi okulula. Kwimveliso yanamhlanje kunye nothutho, ezi nkqubo zisebenza njengojongano lokuva kwiinkqubo zolawulo oluzenzekelayo lweziko. Ngokudityaniswa neenkqubo zoLawulo lokuLawula kunye nokuFumaneka kweDatha (i-SCADA) okanye iiNkqubo zokuSebenza kweMveliso (i-MES), iinethiwekhi ze-PA zinokusasaza izilumkiso ezizenzekelayo xa kuvela iingxaki zemveliso, zinciphisa kakhulu ixesha eliphakathi lokulungisa (i-MTTR) ngokwazisa abasebenzi abafunekayo ngoko nangoko.

Ngaphezu koko, ixabiso libaluleke kakhulu ekunciphiseni umngcipheko kunye nokunciphisa uxanduva. Unxibelelwano olucacileyo noluqondakalayo ngexesha lengxakeko luthintela uloyiko kwaye luququzelela ukufuduka okukhuselekileyo nokucwangcisiweyo. Impembelelo yemali yokufuduka okulawulwa kakubi okanye ingozi engadluliselwanga inokuba yintlekele. Ukutyala imali kwisandi semizi-mveliso esiqondakalayo kakhulu kuqinisekisa ukuthotyelwa kwemiyalelo engqongqo yokhuseleko emsebenzini ngelixa kulungiswa imisebenzi yemihla ngemihla.

Izicelo eziphambili zeeSpeakers ze-Industrial PA

Ukuguquguquka kwesithethi se-PA semizi-mveliso kuyivumela ukuba isebenze imisebenzi emininzi ebalulekileyo kwisixhobo esinye. Uyilo lwesandi olusasazwayo lwanamhlanje, ngakumbi olo lusebenzisa ubuchwepheshe be-IP/SIP (Session Initiation Protocol), luvumela inethiwekhi enye yezithethi ukuba ziphathe usetyenziso olwahlukileyo nolubekwe phambili ngaxeshanye. Ukuqonda ezi meko ziphambili zokusetyenziswa kubalulekile ekumiseleni ulwahlulo oluchanekileyo, ukhetho lwesithethi, kunye namaqhinga okudibanisa isixhobo.

Izaziso zoPhawu oluNgxamisekileyo kunye nokuFuduka

Eyona ndlela ibaluleke kakhulu kuyo nayiphi na isithethi se-PA semizi-mveliso kukusasazwa kwezilumkiso zokufuduka ngexesha likaxakeka kunye namaphepha okhuseleko. Kwimeko yomlilo, ukuchitheka kweekhemikhali, okanye isiganeko semozulu embi,Inkqubo ye-PA kufuneka itshintshezonke ezinye iindlela zomsindo. Imibutho elawulayo, efana ne-NFPA (National Fire Protection Association) kunye ne-OSHA, iyalela imiqathango engqongqo yokusebenza kwezi nkqubo. Ngokukodwa, imisindo yongxamiseko kunye nemiyalelo yelizwi kufuneka idlule kwinqanaba lengxolo engqongileyo ubuncinane nge-15 dB, okanye ifikelele kubuninzi be-120 dB, ukuqinisekisa ukuba ziyaqondwa ngabasebenzi abanxibe izikhuselo zokuva.

Iinkqubo zokukhupha ilizwi zixhomekeke kakhulu ekuqondeni kwesithethi se-PA semizi-mveliso. Nangona ii-siren zemveli zibonisa ingozi eqhelekileyo, imiyalelo yelizwi inokukhokela abasebenzi kude neendawo ezithile eziyingozi okanye ibayalele ukuba baye kwindawo yokuzikhusela. Oku kufuna izithethi ezikwaziyo ukuphinda zivelise uluhlu lwamaza omsindo womntu (malunga ne-300 Hz ukuya kwi-4 kHz) ngokucacileyo kakhulu, zinciphise ukuphazamiseka nokuba kumanqanaba aphezulu okukhupha.

Uhlaziyo loNxibelelwano lweMveliso kunye noHlaziyo loMsebenzi

Ngaphandle kweengxakeko, izithethi ze-PA zemizi-mveliso ziququzelela isigqi semihla ngemihla semveliso. Izibonelelo zisebenzisa ezi nkqubo kwizaziso zotshintsho lweshifti, izibhengezo zekhefu, kunye neepeyinti zasekhaya zabasebenzi bolondolozo okanye abaphetheyo. Ngokuseka iindawo ezahlukeneyo zesandi, abaphathi banokupeyinta imigca ethile yemveliso okanye amasebe ngaphandle kokuphazamisa umgangatho wonke wefektri.

Ukuhlanganiswa okuphucukileyo kuvumela inkqubo ye-PA ukuba ibe lulwandiso lwe-automation yokusebenza. Umzekelo, ukuba umatshini othile uyaphazama, inkqubo yolawulo inokubangela umyalezo orekhodiweyo kwangaphambili okanye isilumkiso sombhalo-ukuya-kwintetho esiqondiswe kuphela kwindawo yolondolozo. Le ndlela ijoliswe kuyo inciphisa "ukudinwa kwe-alamu" okwenzekayo xa abasebenzi behlala bejongene namaphepha apheleleyo ezixhobo angahambelani nemisebenzi yabo ethile. Ukusebenzisa indlela ebekwe kwindawo ethile kunokunciphisa ukuphazamiseka okungeyomfuneko kokuva ukuya kuthi ga kwi-70%.

Izibhengezo zeWarehouse kunye neLogistics

Iindawo zokugcina impahla kunye neendawo zokuhambisa izinto zizisa imingeni ekhethekileyo yesandi ngenxa yobukhulu bazo besikwere, iisilingi eziphakamileyo, kunye nemigca yeendawo ezixineneyo, ezinokufunxa okanye zibonise isandi ngendlela engalindelekanga. Izithethi ze-PA zemizi-mveliso kwezi ndawo zibalulekile ekuququzeleleni ithrafikhi yeeforklift, ukukhokela iilori zothutho ezingenayo kwiindawo ezithile zokulayisha, kunye nokulawula imijikelo yezinto ezikhoyo.

Kwiindawo zokugcina izinto ezikwiindawo eziphakamileyo, izithethi zihlala zixhonywe eluphahleni okanye zifakwe phezulu kwiikholamu zesakhiwo ukuze kuphoswe isandi ezantsi, zingene kwiipaseji. Isithethi esisebenza kakuhle esinomoya ophezulu sinokugubungela ngokufanelekileyo indawo engama-5,000 ukuya kwi-10,000 square feet yomgangatho ngokuxhomekeke kwingxolo engqongileyo kunye nolwakhiwo lwe-racking. Unxibelelwano olusebenzayo lwezothutho lunciphisa ixesha elichithwa ngabaqhubi belinde imisebenzi yedokhi kwaye luqinisekisa ukuba abaphathi bezinto eziphathekayo bathunyelwa ngokukhawuleza kwiindawo ezifuna ukuhlaziywa okukhawulezileyo kwezinto ezisetyenzisiweyo.

Iinkcukacha zeSithethi se-PA seShishini ekufuneka zithelekiswe

Ukukhetha isithethi se-PA esifanelekileyo semizi-mveliso kufuna uvavanyo olucokisekileyo lweenkcukacha ze-acoustic neze-physical. Ukuxhomekeka kwi-wattage kuphela yimpazamo eqhelekileyo yokuthenga; i-wattage ibonisa nje ukusetyenziswa kwamandla, kungekhona ivolumu okanye ukucaca kwesandi esiveliswayo. Endaweni yoko, iinjineli ze-acoustic kunye nabaphathi bezakhiwo kufuneka bavavanye i-matrix yeenkcukacha ezichaza indlela isithethi esiya kusebenza ngayo kwindawo ethile encinci yemizi-mveliso.

Ukugubungela, Uxinzelelo lweSandi, kunye nokuQonda

Eyona ndlela yokulinganisa ivolumu yesithethi yiNqanaba loXinzelelo lweSandi (i-SPL), edla ngokulinganiswa ngee-decibels (dB) kumandla e-1 watt ukusuka kumgama wemitha e-1. Isithethi se-PA semizi-mveliso kufuneka sibe novakalelo oluphezulu, sidla ngokuba nezilinganiso ze-SPL phakathi kwe-105 dB kunye ne-115 dB (1W/1m). Oku kuqinisekisa ukuba isithethi sinokuvelisa ivolumu enkulu efunekayo ukoyisa ingxolo enzima yoomatshini ngaphandle kokufuna amandla e-amplifier agqithisileyo.

Nangona kunjalo, ivolumu ayisebenzi ngaphandle kokuqondwa. Ukuqondwa kulinganiswa kusetyenziswa i-Speech Transmission Index (STI), isikali esiqala ku-0 ukuya ku-1.0. Kunxibelelwano olungxamisekileyo kwiindawo zoshishino, amanqaku e-STI angama-0.5 nangaphezulu adla ngokumiselwa. Ukufikelela kweli nqaku kufuna isithethi esinempendulo yemvamisa ecwangcisiweyo ngononophelo egxininisa izandi zezandi, kunye nokubekwa ngendlela efanelekileyo ukunciphisa ukuphindaphindeka kunye namaza esandi adibanayo angcolisa isandi.

Uvavanyo lwe-IP, Ukukhusela imozulu, kunye nokuqina

Iindawo zoshishino zibeka izixhobo kwindawo ezinobungozi, nto leyo eyenza ukuba ukhuseleko lokungena (IP) kunye novavanyo lwe-NEMA lube neenkcukacha ezibalulekileyo. Uvavanyo lwe-IP lunamanani amabini: elokuqala libonisa ukhuseleko kwizinto eziqinileyo (uthuli), kwaye elesibini libonisa ulwelo. Isithethi se-PA esiqhelekileyo sezoshishino kufuneka sibe novavanyo oluncinci lwe-IP66, olubonisa ukuba alunathuli ngokupheleleyo kwaye lukhuselekile kwiilwandle ezinzima okanye kwiijethi zamanzi ezinamandla—ezibalulekileyo kwizixhobo ezifuna ukuhlamba ngoxinzelelo oluphezulu.

EMantla Melika, kusetyenziswa amanqaku e-NEMA rhoqo. Umgangatho we-NEMA 4X uyinto enqwenelekayo kakhulu, njengoko uqinisekisa ukhuseleko kuthuli oluvuthuzwa ngumoya, imvula, amanzi atshizayo, kwaye okubaluleke kakhulu, ukugqwala.iindawo ezinobungoziapho kukho iigesi okanye uthuli olunokutsha, njengezityalo ze-petrochemical okanye ii-elevator zengqolowa, izithethi kufuneka ziphathe iziqinisekiso ezithile ezichasene nokuqhuma (umz., i-ATEX, i-IECEx, okanye iCandelo loku-1, iCandelo 1/2). Ezi yunithi zineendawo ezixineneyo nezingenamlilo ezenzelwe ukuqulatha naluphi na umbane wangaphakathi, othintela ukuba ungavuthisi umoya wangaphandle.

Izithethi zeHorn vs Izithethi zeKhabhinethi

Uyilo olubonakalayo lwesipikha se-PA semizi-mveliso lulawula ngokusisiseko ukusasazeka kwaso kwi-acoustic kunye nokusetyenziswa kwaso okufanelekileyo. Izinto ezimbini eziqhelekileyo zesimo zizipikha ze-horn kunye nezipikha zekhabhinethi (okanye ezifakelwa kumphezulu). Izipikha ze-horn zisebenzisa i-waveguide evuthayo ukuze zikhulise isandi somqhubi, nto leyo ebangela isandi se-SPL esiphezulu kakhulu kunye nesandi esibhekisa kwicala eliphezulu. Zisebenza kakuhle kakhulu kodwa zihlala zingenazo izixhobo zokuvelisa eziphantsi (i-bass), nto leyo ezenza zilungele ukuhlaba ii-alamu kunye nokubhala kakuhle ilizwi kwiindawo ezinengxolo, ezinkulu nezinkulu.

Izithethi zekhabhinethi, ngokuchaseneyo, zisebenzisa ibhokisi ebiyelweyo yendabuko, edla ngokuhlala ii-drivers ezininzi (i-woofer kunye ne-tweeter). Zibonelela ngempendulo ebanzi rhoqo kunye nokuthembeka okungcono kwesandi ngokubanzi, nto leyo ezenza zifaneleke kumculo wangasemva kunye ne-voice paging kwiindawo zoshishino ezithuleyo ezifana namagumbi okuphumla, iilebhu, okanye iindawo zokupakisha. Nangona kunjalo, azinawo amandla okumelana nemozulu njenge-horn yezimboni ezinikeleyo.

Ukucwangcisa nokufaka iNkqubo yeSithethi se-PA sezeMizi-mveliso

Ukufumana izixhobo ezifanelekileyo sisiqingatha nje se-equation; ukusebenza kakuhle kwenkqubo yesithethi se-PA yemizi-mveliso kuxhomekeke ngokupheleleyo kucwangciso lweengcali, ukubekwa kwesicwangciso, kunye neenkqubo zokufakela ezingqongqo. I-acoustics yemizi-mveliso ayixoleli kakhulu. Ukubekwa kakubi kunokubangela iindawo ezifileyo apho izilumkiso ezibalulekileyo zingavakali, okanye amagumbi e-echo apho iziphumo zesithethi ezihambelanayo zenza izibhengezo zelizwi zingavakali ngokupheleleyo.

Uphando lweNdawo, ukuHlela iNdawo, kunye nokubekwa kweSithethi

Isiseko salo naluphi na ukufakelwa okuphumelelayo kuphando olupheleleyo lwendawo ye-acoustic. Iinjineli kufuneka zilinganise amanqanaba engxolo engqongileyo kwiimeko ezahlukeneyo zokusebenza kwaye zidwelise ubungakanani bendawo. Ngenxa yokuba isandi silandela umthetho wesikwere ochaseneyo—sihla nge-6 dB ngalo lonke ixesha umgama ukusuka kwisithethi uphindaphindwa kabini—iinjineli kufuneka zibalele ngokuthe ngqo ukuba zingaphi izithethi ezifunekayo ukugcina i-SPL ekujoliswe kuyo kulo lonke umgangatho.

Ukwahlulahlula iindawo zesandi linyathelo elilandelayo elibalulekileyo. Izixhobo kufuneka zahlulwe zibe zii-logical acoustic zones ngokusekelwe kwingxolo yendawo kunye nomsebenzi wokusebenza. Ukuze kufezekiswe ukugquma okufanayo kunye nokuphepha iindawo ezifileyo, izithethi zihlala zibekwe kwindawo enye rhoqo emva kweemitha ezili-15 ukuya kwezingama-20 (iinyawo ezingama-50 ukuya kwezingama-65) kwiindawo ezinengxolo ephezulu. Endaweni yokuxhomekeka kwizithethi ezimbalwa ezinkulu ezidubula ngesandi esiphezulu, nto leyo edala iindawo ezishushu kakhulu kunye nokungaqondani kakuhle, iindlela ezilungileyo zokusasazwa kwesandi ziyalela ukuba kusetyenziswe uxinano oluphezulu lwezithethi ezicofwe kwiindawo ezine-wattage ephantsi.

Ukuhlanganiswa neNkqubo yeAlarm yoMlilo kunye noKhuseleko

Kwiindawo zoshishino, inkqubo ye-PA ayisoloko iyindawo yothungelwano oluzimeleyo; kufuneka iqhagamshelane kakuhle neepaneli zolawulo lokhuseleko lobomi kunye nee-alamu zomlilo (FACP). Olu nxulumano luqinisekisa ukuba xa i-alamu yomlilo iqala, inkqubo ye-PA izithulisa ngokuzenzekelayo yonke imisindo yangasemva okanye iipaging eziqhelekileyo kwaye isasaze iiprotokholi zokufuduka ezirekhodiweyo kwangaphambili. Oku kufuna ukuvalwa okuzinikeleyo koqhagamshelwano okanye ukuhlanganiswa kwe-API kwinqanaba lenethiwekhi phakathi kwezi nkqubo zimbini.

Ukuze kuthotyelwe ukhuseleko lobomi, imigca yesithethi ngokwayo kufuneka ihlale ijongiwe ukuze kujongwe iimpazamo. Ii-amplifier zanamhlanje zoshishino zisebenzisa i-impedance monitoring okanye i-end-of-line resistor (EOL) resistor ukuze zibone ii-short circuits, imigca evulekileyo, okanye ukusilela kwesithethi. Ukuba i-forklift inqumla intambo yesithethi kwindawo yokugcina impahla, inkqubo kufuneka ixele ngoko nangoko ingxaki kwigumbi lolawulo eliphakathi, iqinisekise ukuba inkqubo ilungisiwe ngaphambi kokuba kwenzeke imeko kaxakeka.

Ukuthobela, Uvavanyo, kunye noXwebhu

Ukufakelwa kwenkqubo yesithethi se-PA yemizi-mveliso kuxhomekeke ekuthotyelweni kwemithetho engqongqo. EYurophu, iinkqubo ezisetyenziselwa ukukhupha ilizwi kufuneka zihambelane nomgangatho we-EN 54-24, ochaza imigaqo engqongqo yokusebenza kunye nokusinda kwezithethi ngokwazo. E-United States, i-NFPA 72 ilawula ukufakwa, ukusebenza, kunye nokuvavanywa kweenkqubo ze-alamu yomlilo kunye nonxibelelwano olungxamisekileyo.

Emva kokufakelwa, ukuqaliswa ngokupheleleyo kunye novavanyo kuyimfuneko. Iingcali kufuneka zenze imilinganiselo ye-acoustic zisebenzisa iimitha ze-SPL ezilinganisiweyo kunye nee-STI analyzers ukuqinisekisa ukuba inkqubo iyahlangabezana nemilinganiselo yomthamo ofunekayo kunye nokuqondwa kuzo zonke iindawo. Zonke iziphumo zovavanyo, iimephu zokwahlulahlula, iidayagram zocingo, kunye nemilinganiselo ye-baseline impedance kufuneka zibhalwe ngononophelo. Olu xwebhu lwenza isiseko sovavanyo lonyaka oluyimfuneko kwaye luqinisekisa ukuba ukwandiswa kwezakhiwo kwixesha elizayo akubeki emngciphekweni ukuthembeka kwenethiwekhi yesandi yokhuseleko lobomi.

Indlela yokukhetha isisombululo sesithethi se-PA sezezimboni esifanelekileyo

Ukuhambahamba kwimarike ukuze ufumaneisisombululo sesithethi se-PA semizi-mvelisoifuna ukulinganisela iimfuno ze-acoustic ezikhawulezileyo kunye nocwangciso lweziseko zophuhliso lwexesha elide. Abaphathi beziko kunye namaqela okuthenga kufuneka bavavanye iinkqubo ezinokubakho kungekuphela nje kwiinkcukacha zabo, kodwa nokuba zihambelana njani ngokungenamthungo neziseko zophuhliso ze-IT zeziko, amandla okugcina, kunye nezicwangciso zokwandisa kwixesha elizayo.

Iikhrayitheriya zeSigqibo seNdawo yoShishino

Iikhrayitheriya zesigqibo eziphambili zixhomekeke ekukhetheni phakathi kweenkqubo ze-analog zemveli (70V/100V) kunye neenethiwekhi zesandi zanamhlanje ezisekelwe kwi-IP. Ukuba indawo inezintambo zobhedu ezikhoyo, ezikumgangatho ophezulu kwaye ifuna inkqubo elula, edibeneyo ye-paging, inkqubo yendabuko esasazwayo ye-70V ihlala ingabizi kakhulu kwaye iqinile. Nangona kunjalo, ukuba indawo ifuna i-granular zoning, ukuhlanganiswa kwesoftware ezenzekelayo, kunye nokubeka esweni okukude, inkqubo esekwe kwi-IP/SIP ingcono.

Izithethi ze-PA zemizi-mveliso ezisekelwe kwi-IP ziqhagamshela ngqo kwinethiwekhi yendawo yesakhiwo (i-LAN) ngeentambo ze-Ethernet eziqhelekileyo. Uninzi lwazo zisebenzisa i-Power over Ethernet (i-PoE okanye i-PoE+), zitsala idatha kunye namandla afikelela kwi-30 watts kwintambo enye. Oku kunciphisa kakhulu umsebenzi wokufakelwa kwaye kususa isidingo see-amplifier ezinkulu ezikwindawo enye. Abenzi bezigqibo kufuneka bahlole amandla e-bandwidth yesebe labo le-IT kunye nesimo sokhuseleko lwe-cyber ngaphambi kokuba basebenzise amakhulu ee-endpoints zesandi eziqhotyoshelwe kwinethiwekhi.

Ixabiso lilonke lobunini kunye nenkxaso yababoneleli

Xa kuvavanywa iTotal Cost of Ownership (TCO), inkcitho yokuqala yezixhobo zekhompyutha imele inxenye encinci kakhulu yeendleko zobomi bonke. Iindawo zoshishino ziwohloka ngokukhawuleza izixhobo; ngoko ke, ukubeka phambili izithethi ezineMean Time Between Failures (MTBF) ezidlula iiyure ezingama-50,000 sisicwangciso semali esifanelekileyo. Izithethi zorhwebo ezingabizi kakhulu ziya kufuna ukutshintshwa rhoqo, zinyuse iindleko zabasebenzi kwaye zifune ukuqeshisa izikere ezibizayo kwiindawo zokutshintsha ezikwi-high-bay.

Okokugqibela, vavanya inkxaso yomthengisi emva kokuthengisa kunye nezakhiwo zewaranti. Umenzi othembekileyo wezixhobo zesandi zoshishino kufuneka anikezele ngoncedo olupheleleyo loyilo, inkxaso yesoftware yokubonisa i-acoustic, kunye nexesha elincinci lewaranti leminyaka emi-3 ukuya kwemi-5 kwizixhobo eziqinileyo. Inkxaso enamandla yomthengisi iqinisekisa ukuba njengoko indawo yesakhiwo itshintsha, inkqubo ye-PA inokwandiswa kwaye iphuculwe ngaphandle kokufuna uhlengahlengiso olupheleleyo lweziseko.

Izinto ezibalulekileyo ekufuneka ziqwalaselwe

• Khetha izithethi ze-PA zemizi-mveliso endaweni yezixhobo zesandi zorhwebo xa ingxolo ejikeleze umhlaba ifikelela kwi-85 dB ukuya kwi-115 dB, kuba izithethi eziqhelekileyo zihlala zingaqondakali kwezo meko.
• Cacisa izinto ezirhabaxa ezifana ne-fiberglass, i-aluminium ephosiweyo, intsimbi engatyiwayo, okanye i-ABS enefuthe eliphezulu kwiindawo ezivezwe luthuli, ukungcangcazela, iikhemikhali, ukufuma, okanye i-UV.
• Sebenzisa imigca yesandi esasazwayo ye-70V okanye ye-100V kwiifektri ezinkulu nakwiindawo zokugcina impahla apho intambo yesipikha isebenza khona inokufikelela kumakhulu okanye amawaka eenyawo.
• Beka izithethi ze-PA ngobuchule kwimigangatho yemveliso, kwiindawo zokulayisha imithwalo, kwiindawo zokulungisa, kwiiyadi zangaphandle, nakwiindlela zokufuduka ukuze kuxhaswe imisebenzi yemihla ngemihla kunye nokuphendula kwimeko kaxakeka.
• Hlanganisa iinkqubo ze-PA kunye ne-SCADA, MES, VoIP, IP PBX, intercom, okanye amaqonga okuhambisa ukuze zenze izilumkiso ngokuzenzekelayo kwaye zinciphise ixesha lokuphendula ngexesha leempazamo zemveliso okanye iziganeko zokhuseleko.

Imibuzo ebuzwa qho

Yintoni eyenza isithethi se-PA semizi-mveliso sahluke kwisithethi sezorhwebo?

Isithethi se-PA semizi-mveliso senzelwe ingxolo ephezulu, ukungcangcazela, uthuli, ukufuma, iikhemikhali, kunye nobushushu obugqithisileyo. Ngokwesiqhelo sisebenzisa izivalo eziqinileyo, iziqhubi ezikhupha amandla aphezulu, kunye nenkxaso yomgca we-70V/100V kwiintambo ezinde kwiifektri nakwiindawo zokugcina impahla.

Ziphi iindawo apho izithethi ze-PA zemizi-mveliso ziluncedo kakhulu kwiifektri?

Zisetyenziswa kakhulu kwimigangatho yemveliso, kwimigca yokuhlanganisa, kwiindawo zokulayisha imithwalo, kwiindawo zokulungisa, kwiindawo zokuphuma ngexesha likaxakeka, nakwiiyadi zangaphandle apho kufuneka kuviwe khona iipeji ezicacileyo, izaziso zeshifti, izilumkiso zoomatshini, kunye nemiyalelo yokuphuma koomatshini.

Ngaba izithethi ze-PA zemizi-mveliso zingayiphucula impendulo engxamisekileyo?

Ewe. Izibhengezo ezicacileyo ze-PA zinceda ekukhokeleni abantu abaphumayo, zilumkise abasebenzi ngeengozi, kwaye ziququzelele amaqela okuphendula. Kwiindawo ezinengxolo, izithethi eziqondakala lula zinciphisa ukudideka kwaye zixhasa unxibelelwano olukhuselekileyo nolukhawulezayo.

Ngaba iindawo zokugcina impahla zifuna izithethi ze-PA zemizi-mveliso?

Ewe, ingakumbi iindawo zokugcina impahla ezinkulu okanye ezikumgangatho ophezulu apho isandi kufuneka sihambe kwiindawo zokukhetha, izikhululo zokupakisha, iindawo zokulayisha, kunye nezithuthi zeefolokhwe. Izithethi ze-PA zezimboni zinceda ukusasaza uhlaziyo lokusebenza, izilumkiso zokhuseleko, kunye nemiyalelo yezothutho ngokucacileyo.

Ngaba izithethi ze-PA zingadibana ne-VoIP okanye iinkqubo ze-paging?

Iinkqubo ezininzi ze-PA zemizi-mveliso zinokudityaniswa ne-IP PBX, i-VoIP paging, ii-dispatch consoles, ii-intercom, kunye neenkqubo zonxibelelwano olungxamisekileyo. Oku kuvumela izibhengezo ezikwindawo enye, izilumkiso ezenzekelayo, kunye ne-multi-zone paging kwiindawo zoshishino.