Mai Kula da Zazzabi na 3500/60 shine maɓalli mai mahimmanci na Tsarin Kula da Yanayin Injin Benly Nevada 3500, wanda aka ƙera don ci gaba da sa ido da kariyar kayan aikin juyawa mai mahimmanci. Wannan tsarin yana ba da tashoshi shida na ingantattun yanayin zafin jiki kuma yana iya karɓar bayanai daga duka Resistance Temperature Detectors (RTDs) da Thermocouples (TCs). Babban aikinsa shine daidaitawa da sarrafa siginar zafin shigarwar da kwatanta su da madaidaitan ƙararrawa masu shirye-shiryen mai amfani, ta haka ne ke haifar da faɗakarwa akan lokaci idan yanayin yanayi mara kyau don hana lalacewar kayan aiki daga zazzaɓi ko wasu al'amurran da suka shafi zafin jiki.
Tsarin 3500/60, wanda aka sani don sassauci, babban aminci, da sauƙi na haɗin kai, ana amfani dashi sosai a cikin samar da wutar lantarki, man fetur & gas, sunadarai, marine, da sauran masana'antu don saka idanu masu mahimmancin kadarorin irin su turbin tururi, gas turbines, compressors, pumps, da motors.
2. Mabuɗin Siffofin
1. Multi-Channel da Multi-Sensor Type Support
Shigar da Tashoshi Shida: Module na 3500/60 guda ɗaya na iya sa ido a lokaci guda har zuwa wuraren zafin jiki masu zaman kansu guda shida, yana ba da damar sa ido mai girma wanda ke adana sarari da farashi.
Daidaituwar RTD da TC: Tsarin yana goyan bayan nau'ikan firikwensin zafin jiki na farko guda biyu, yana bawa masu amfani damar zaɓar nau'in firikwensin mafi dacewa don bukatun aikace-aikacen su. Hakanan yana iya ɗaukar haɗin abubuwan RTD da TC akan nau'ikan guda ɗaya (dangane da nau'in module I/O).
2. Sauƙaƙe Kanfigareshan da I/O Module Zaɓuɓɓuka
Ana aiwatar da aikin module ta hanyar ƙirar I/O na baya, yana bawa masu amfani damar zaɓar nau'ikan daban-daban dangane da ainihin buƙatu:
RTD/TC Module I/O mara ware: Mai tsada, ana iya saita shi don karɓar TC, RTD, ko cakuda abubuwan shigarwa biyu. Ya dace da daidaitattun yanayin masana'antu ba tare da tsangwama na lantarki mai tsanani ba.
Module I/O keɓaɓɓen TC: Yana ba da har zuwa 250 Vdc na keɓewar tashar-zuwa tashoshi, yadda ya kamata yana murkushe tsangwama na waje wanda ya haifar da yuwuwar bambance-bambancen ƙasa ko kuskuren wayoyi na filin, tabbatar da daidaiton ma'auni da amincin tsarin a cikin matsanancin yanayin lantarki.
Module na I/O tare da Shingayen Ciki: An ƙera shi don wurare masu haɗari, yana haɗa shingen ciki, saduwa da buƙatun tabbatar da fashewa ba tare da shingaye masu hankali na waje ba.
3. Gudanar da Ƙararrawa na Shirye-shiryen
Ƙararrawa-Mataki Biyu: Kowane tashoshi ana iya daidaita shi da kansa tare da saitunan faɗakarwa da ƙararrawa mai haɗari, yana ba da damar faɗakarwa da kariya.
Matsakaicin Saiti Mai Sauƙi: Ƙimar ƙararrawa yawanci ana iya daidaita su daga 0% zuwa 100% na kowane kewayon ma'auni, sai dai idan an iyakance shi ta ainihin kewayon firikwensin kanta.
Jinkirin ƙararrawa mai shirye-shirye: Don hana ƙararrawar karya daga jujjuyawar juzu'i, masu amfani na iya saita lokutan jinkiri:
Jinkirta Fadakarwa: 1 zuwa 60 seconds, a cikin tazarar dakika 1.
Jinkirta Hatsari: 1 zuwa 60 seconds, a cikin tazarar dakika 0.5. Ƙananan jinkiri yana tabbatar da saurin amsawa ga yanayi masu haɗari.
4. Babban Amintaccen Tsari da Taimakon TMR
Alamar Matsayi: Module na gaba panel yana da alamun LED don nunin matsayi na ainihi:
OK LED: Yana nuna aikin al'ada na al'ada.
TX/RX LED: Yana nuna tsarin yana sadarwa tare da wasu kayayyaki a cikin 3500 rack.
Kewaya LED: Yana nuna ƙirar tana cikin Yanayin Ketare.
Sau uku Modular Redundant (TMR) Kanfigareshan: Don aikace-aikacen da ke buƙatar babban aminci da samuwa, ana iya shigar da nau'ikan 3500/60 guda uku gefe-gefe don samar da tsarin TMR. Wannan tsarin yana amfani da dabaru biyu cikin uku na kada kuri'a, yana tabbatar da cewa babu wani ma'ana guda na gazawar da zai iya haifar da rashin aiki na tsarin ko asarar kariya, yana haɓaka juriya ga kuskuren tsarin.
5. Babu Fitarwa Mai Rikodi (Bambancin Maɓalli daga 3500/61)
Tsarin 3500/60 ba ya samar da abubuwan rikodin analog. Wannan shine kawai babban bambanci daga 3500/61 module. 3500/61 yana ba da abubuwan analog na 4-20 mA don duk tashoshi shida don haɗawa zuwa masu rikodin taswira ko tsarin sayan bayanai, yayin da 3500/60 ke mai da hankali kan ainihin saka idanu da ayyukan ƙararrawa.
3. Cikakken Ƙa'idar Aiki
1. Shigar Sigina da Ƙarfafawar Sensor
Ayyukan na'urar tana farawa da karɓar siginonin lantarki masu rauni daga firikwensin filin.
Don RTDs (Masu Gano Zazzabi): Juriya na RTD yana canzawa tare da zafin jiki. Tsarin 3500/60 yana ba da madaidaiciyar tushe na yau da kullun (925 µA ± 15 µA @ 25°C) don tada hankalin firikwensin RTD. Don 3-waya RTDs, tsarin yana amfani da maɓuɓɓuka biyu na yanzu don rama kurakurai da aka gabatar ta hanyar juriyar gubar; don 4-waya RTDs, yana amfani da tushe guda ɗaya na yanzu, tare da ƙarin wayoyi masu ma'ana suna kawar da tasirin juriyar gubar don daidaiton auna mafi girma. Tsarin yana ƙididdige juriya na RTD daidai ta hanyar auna raguwar ƙarfin lantarki a cikinsa kuma, dangane da sanannen tashin hankali na halin yanzu, sannan ya canza wannan ƙimar juriya zuwa ƙimar zafin jiki ta amfani da daidaitattun allunan juyawa na RTD (misali, Pt100, α=0.00385).
Don TCs (Thermocouples): Thermocouples suna haifar da ƙaramin ƙarfin matakin millivolt daidai da bambancin zafin jiki dangane da tasirin Seebeck. Don auna madaidaicin zafin jiki, dole ne a san zafin mahaɗin sanyi na thermocouple. Module na I/O na 3500/60 ya ƙunshi firikwensin Ƙimar Cold Junction Compensation (CJC), tare da daidaito na ±1°C @ 25°C. Module ɗin yana ci gaba da lura da yanayin zafin firikwensin CJC kuma yana haɗa wannan karatun tare da ƙarfin wutar lantarki da thermocouple ya haifar. Yin amfani da ƙirar lissafi ko tebur na bincike don takamaiman nau'in thermocouple (misali, Nau'in K, E, J, T), yana ƙididdige zafin gaske a mahaɗar zafi.
2. Sigina Conditioning da Digitization
Danyen sigina daga na'urori masu auna firikwensin suna da rauni sosai kuma suna da saurin amo. Don haka, ana yin matakai da yawa na sanyaya sigina a ciki:
Tace: Ana amfani da masu tace kayan aikin don murkushe tsangwama ta mitar layi da ƙara mai girma.
Ƙarawa: Ana ƙara siginar zuwa matakin da ya dace don sarrafawa ta Analog-to-Digital Converter (ADC).
Warewa (na TC keɓe I/O Modules): Kafin siginar ta shiga sashin sarrafa tsarin, ta wuce ta wani shingen keɓewa (misali, na'urori masu aunawa ko kuma masu keɓancewar maganadisu) waɗanda ke keɓance ƙasa shigar kowane tashoshi daga ƙasan tsarin. Wannan yana hana high-mode voltages daga ɓata tsarin ko tasiri ma'auni akan wasu tashoshi.
Canjin Analog-to-Digital (ADC): Ana canza siginar analog mai sharadi zuwa siginar dijital ta babban ADC mai ƙarfi. Madaidaicin tsarin shine 1°C ko 1°F, yana tabbatar da cewa ko da ƙananan canje-canjen zafin jiki ana iya ganowa.
3. Ƙididdigar zafin jiki da Linearization
Ana sarrafa siginar digitized ta microprocessor na module. Don RTDs, mai sarrafa na'ura yana aiwatar da algorithms na layi don canza ƙimar juriya zuwa ƙimar zafin jiki na madaidaiciya. Ga TCs, sarrafawa ya fi rikitarwa, ya haɗa da matakai masu zuwa:
Karanta zafin firikwensin CJC.
Mayar da zafin jiki na CJC zuwa madaidaicin ma'aunin wutar lantarki wanda takamaiman nau'in thermocouple zai haifar a wannan zafin jiki (ta yin amfani da nau'i-nau'i ko tebur na dubawa).
Ƙara wannan ƙididdigan ƙarfin lantarki zuwa ma'aunin ƙarfin wutar lantarki da aka auna daga thermocouple don samun jimlar ƙarfin lantarki daidai da ainihin zafin mahaɗar zafi.
A ƙarshe, canza wannan jimlar ƙarfin lantarki zuwa ƙimar zafin mahaɗin zafi ta ƙarshe ta amfani da ayyuka masu juzu'i ko tebur dubawa.
4. Alarm Logic and Output
Ana kwatanta ƙimar zafin jiki da aka ƙididdige ainihin lokacin da aka saita saiti na mai amfani da Faɗakarwa da saiti masu haɗari ga kowane tashoshi. Dabarar kwatancen ta haɗa da ƙayyadadden jinkirin ƙararrawa. Idan ainihin lokacin zafin jiki ya ci gaba da wuce wurin da aka saita na tsawon lokaci fiye da lokacin jinkiri, ƙirar tana haifar da yanayin ƙararrawa daidai.
Ana fitar da matsayin ƙararrawa ta hanyoyi biyu na farko:
Sadarwar Cikin Gida: Ana aika matsayin ƙararrawa zuwa jirgin baya na rack 3500, inda za a iya amfani da shi ta wasu kayayyaki a cikin tsarin (misali, relay modules) don jawo kashewa, ƙararrawa mai ji/ gani, ko wasu ayyukan kariya.
Alamar Panel ta gaba: Ko da yake 3500/60 ba ta da fitattun LEDs na ƙararrawa, ana iya kallon matsayinsa a fili ta hanyar ƙirar rack interface ko software na sama.
5. Tsarin Sadarwa da Haɗin Bayanai
Tsarin 3500/60 yana sadarwa cikin babban sauri ta hanyar jirgin baya na rack 3500 tare da tsarin 'kwakwalwa' - kamar Rack Interface Module (3500/15, 3500/20M, da sauransu). Duk sigogin daidaitawa, bayanan zafin jiki na ainihi, yanayin ƙararrawa, da bayanan lafiyar module ana watsa su ta wannan jirgin baya. Module na Rack Interface Module sannan ya ba da wannan bayanan zuwa Tsarin Rarraba Rarraba shuka (DCS), Safety Instrumented System (SIS), ko Tsarin Gudanar da Kadara (AMS) ta amfani da daidaitattun ka'idojin masana'antu kamar Modbus ko OPC UA, yana ba da damar sa ido kan tsirrai da shigar da bayanai.
6. Daidaito da La'akari da Muhalli
Ma'aunin ma'aunin ƙirar yana tasiri da abubuwa da yawa, gami da nau'in module I/O, nau'in rak, da zafin yanayi.
Nau'in Module I/O: Keɓaɓɓen I/O modules galibi suna ba da daidaito mafi girma (misali, ± 1 ° C don ƙarewar waje keɓaɓɓen nau'in a cikin madaidaicin tara) saboda ingantacciyar rigakafin amo idan aka kwatanta da nau'ikan da ba a keɓe ba (misali, ± 3 ° C don ƙarewar waje ba ware).
Nau'in Rack: Racks na girma yawanci suna ba da daidaito mafi inganci fiye da daidaitattun raƙuman ruwa saboda ingantacciyar garkuwa da ƙirar ƙasa.
Zazzabi na yanayi: ƙayyadadden ƙayyadaddun daidaito a cikin takaddar bayanan yawanci shine a +25 ° C. Sama da duka kewayon zafin jiki na aiki (-30°C zuwa +65°C), daidaito na iya ɗan ƙasƙanta, amma kuskuren ana sarrafa shi sosai a cikin kewayon da aka ayyana (misali, ± 0.4% kuskure akan kewayon zafin jiki don fitowar mai rikodin).
4. Yanayin aikace-aikace
Module Zazzabi na 3500/60 ya dace da yanayin masana'antu masu zuwa:
Kula da zafin jiki don injin turbin gas, injin tururi, da compressors.
Kariyar yanayin zafi don famfo, fanfo, akwatunan gear, da sauran injina masu juyawa.
Kula da yanayin zafin iska don masu canza wuta da janareta.
Kula da yanayin zafi don masu sarrafa sinadarai da bututun mai.
Kula da yanayin zafi don tsarin wutar lantarki na ruwa.
