CE281 444-281-000-112 Piezoelectric Accelerometer

The CE281 444-281-000-112 wani premium piezoelectric accelerometer daga Meggitt's acclaimed vibrometer® samfurin line, musamman injuna don masana'antu vibration saka idanu a yuwuwar fashewa yanayi. Wannan ƙayyadaddun sigar ingantaccen sigar fasalulluka masu haɗaɗɗun kayan lantarki waɗanda ke yin cajin kan allo-zuwa juzu'i na yanzu, kawar da buƙatar ƙarar caji ta waje da samar da ingantaccen fitarwa na yanzu wanda ke da kariya daga ƙarfin kebul da tsangwama na lantarki. An sanye shi da mai haɗa bayoneti mai kauri (MS3112E8-3P), CE281 444-281-000-112 an tsara shi don shigarwa na dindindin a wurare masu haɗari inda iskar gas, vapours, ko ƙura na iya kasancewa, yana ba da kariya ta ciki (Ex ia) da kariya ta ƙasa da ƙasa.

Na'urar firikwensin ya haɗa nau'in piezoelectric mai juzu'i na tsakiya wanda aka ɗora a tsakiya tare da haɗaɗɗen kayan lantarki da aka haɗe a cikin hatimin hatimi, duk wani ginin ƙarfe-ƙarfe. Shugaban firikwensin, bututun kariya na bakin karfe mai sassauƙa, da kwandon lantarki ana haɗa su cikin taro guda ɗaya mai tsafta, suna ba da cikakkiyar kariya daga danshi, mai, sinadarai, tururi, da shiga. Wannan ƙaƙƙarfan ƙira yana tabbatar da dogaro na dogon lokaci a cikin matsanancin yanayin masana'antu, gami da tsire-tsire masu sinadarai, matatun mai, tashoshin gas, da dandamali na ketare.

CE281 444-281-000-112 yana ba da ƙimar ƙima na 10 μA/g, kewayon ma'auni mai ƙarfi daga 0.0001 g zuwa ganiya 200 g, da amsa mitar 3 Hz zuwa 7000 Hz a cikin ± 5 %. Maɗaukakin mitar sa mai ƙarfi (25 kHz na al'ada) yana tabbatar da ingantaccen kama manyan abubuwan haɓaka girgizar ƙasa, gami da mitocin gearmesh da mitocin wucewa. Shugaban firikwensin yana ci gaba da aiki daga -55 °C zuwa 260 °C, yayin da na'urorin lantarki ana ƙididdige su -40 °C zuwa 125 °C, suna ɗaukar nau'ikan hanyoyin masana'antu.

Mai haɗin bayoneti (MS3112E8-3P) yana ba da amintaccen haɗin haɗin kai mai sauri wanda ke haɗuwa tare da daidaitattun masu haɗa bayoneti na CG134 (MS3112E08-3S), sauƙaƙe shigarwa da kiyayewa a cikin mahalli mai haɗari. Wannan sigar Ex tana ɗauke da takaddun shaida na ƙasa da ƙasa da yawa, gami da ATEX, IECEx, CCSAus, KGS, da TR CU, yana mai da shi dacewa da tura duniya a Yanki na 0, 1, da 2 da aka keɓance, da kuma wurare na 1 da 2 a Arewacin Amurka.

Wannan gabatarwar samfurin yana ba da cikakken bayanin CE281 444-281-000-112, gami da mahimman fasalulluka, aikace-aikace, cikakkun ƙayyadaddun ƙayyadaddun fasaha a cikin nau'i na tebur, jagororin shigarwa, bayanan oda, da na'urorin haɗi. Duk bayanan an samo su ne daga takardar bayanan Meggitt na hukuma (2021) kuma suna nuna himmar kamfanin don ƙwararrun injiniya da aminci a cikin matsanancin yanayi.

Key Features da Fa'idodi

Ex Certified for Hazard Areas - An amince da CE281 444-281-000-112 don amfani a cikin yanayi mai yuwuwar fashewa tare da takaddun shaida masu yawa: ATEX (II 1 G Ex ia IIC T6…T2 Ga da II 3G Ex nA IIC T6…T2 Gc),SAusEx2, Groups & IEC A‑D; Class I, Zone 0 & 2), KGS, da TR CU. Wannan yana tabbatar da bin duniya da aiki mai aminci a cikin mafi yawan aikace-aikacen da ake buƙata.

Haɗaɗɗen Lantarki na Haɗaɗɗen - Ginin caji-zuwa mai canzawa na yanzu yana kawar da kwandishan siginar waje, rage farashin tsarin da rikitarwa. Fitowar wayoyi 2-modulated a halin yanzu ba ta da ƙarfi ga ƙarfin kebul da hayaniya, yana ba da damar watsa siginar nesa ba tare da lalacewa ba.

Na'ura mai walƙiya Duk Metal Construction - Shugaban firikwensin, bututun kariyar bakin karfe mai sassauƙa, da kwandon lantarki ana waldasu cikin taro guda ɗaya mai tsauri, wanda ba zai iya jurewa 100% zafi, ruwa, tururi, mai, fesa gishiri, ƙura, naman gwari, da yashi. Wannan yana tabbatar da amintaccen aiki na shekaru da yawa a cikin mummuna da mahalli masu haɗari.

Faɗin Yanayin Zazzabi - Shugaban firikwensin yana aiki daga -55 °C zuwa 260 °C ci gaba (ci gaba da rayuwa na ɗan gajeren lokaci zuwa 290 ° C), yayin da kayan lantarki ke aiki daga -40 ° C zuwa 125 ° C, yana sa firikwensin ya dace da saka idanu na injin zafi mai zafi a wurare masu haɗari.

Babban Hankali da Faɗaɗɗen Rage Rage - Tare da 10 μA/g ± 5 % hankali da kewayon ma'auni daga 0.0001 g zuwa 200 g ganiya, firikwensin yana ɗaukar rawar jiki mara ƙarfi biyu da manyan abubuwan rashin daidaituwa na amplitude. Ƙarfin daɗaɗɗen nauyi har zuwa 2000 g kololuwa yana ba da kariya daga masu wuce gona da iri.

Madalla da Amsar Mitar - Amsar lebur na ± 5 % daga 3 Hz zuwa 7000 Hz, haɗe tare da mitar resonant na yau da kullun na 25 kHz, yana ba da damar ingantacciyar ma'auni na ƙarancin saurin injuna da kayan aiki mai ƙarfi da lahani.

Integral Case Insulation - Duk nau'in firikwensin firikwensin da na'urorin lantarki an keɓe su daga gidajensu, suna hana madaukai na ƙasa da sauƙaƙe shigarwa ba tare da keɓance saman hawa na lantarki ba.

Low Transverse Sensitivity – Transverse sensitivity is less than 3 % at 15 Hz with 5 g, ensuring that the sensor responds predominantly to the intended measurement axis, minimising cross‑axis interference.

Mai Haɗin Bayoneti mai Rugged - Madaidaicin mai haɗa bayoneti na MS3112E8-3P yana ba da tabbataccen tabbaci, jujjuyawa, da saurin sakin fuska, mai jituwa tare da wadatattun masu haɗa mating na CG134. Wannan yana sauƙaƙa maye gurbin filin da hanyar kebul a wurare masu haɗari.

Ƙididdigar Factory - Ƙaƙƙarfan daidaitawa a 120 Hz da 5 g yana tabbatar da daidaito daga bayarwa; ba a buƙatar daidaitawa na gaba a ƙarƙashin amfani na yau da kullun, rage farashin kulawa.

Aikace-aikace

CE281 444-281-000-112 ya dace da lura da girgizar ƙasa a wurare masu haɗari da matsanancin yanayin masana'antu, gami da:

• Masana'antar Man Fetur da Gas - Kula da kwampressors, famfo, injin turbines, da injunan juzu'i a cikin matatun mai, masana'antar sarrafa iskar gas, da dandamali na bakin teku inda iskar gas masu ƙonewa suke.

• Tsire-tsire masu sinadarai da Petrochemical - Sa ido na reactors, mixers, centrifuges, da magoya baya a Yanki na 0, 1, da 2 da aka ware.

• Ƙarfafa Ƙarfafa - Ma'aunin girgiza akan iskar gas da tururi, janareta, da kayan taimako a cikin haɗin gwiwa da tsire-tsire masu wutar lantarki tare da yuwuwar yanayi mai fashewa.

• Ma'adinai da Ma'adanai Processing - Kulawa na murkushewa, injiniyoyi, masu jigilar kaya, da masu sha'awar samun iska a cikin sarrafa kwal da wuraren sarrafa ma'adinai.

• Pharmaceutical da sarrafa Abinci - Sa ido kan rawar jiki a wuraren da ake sarrafa ƙarfi da kuma wuraren fashewar ƙura.

• Marine da Offshore - Tsarin samarwa, injunan bene, da famfunan kaya akan tanka da tasoshin FPSO da ke aiki a cikin rarrabuwar yankuna masu haɗari.

• Gwajin wuri mai haɗari da aunawa - shigarwa na wucin gadi ko na dindindin don ingantaccen aiki da kiyaye tsinkaya a cikin yankuna da aka keɓe.

Cikakken Bayanin Sigar Ex Bayoneti (444-281-000-112)

CE281 444-281-000-112 shine Ex-certified bambance-bambancen na iyali CE281, sanye take da bayoneti connector (MS3112E8-3P) kuma an amince da shigarwa a cikin yuwuwar fashewa yanayi. An ƙera wannan firikwensin don saduwa da ƙaƙƙarfan buƙatun IEC 61508 don amincin aiki da umarnin ATEX don kayan aiki a wurare masu haɗari. Takaddun shaida na Ex yana rufe duka aminci na ciki (Ex ia) don Yankuna 0, 1, da 2, da maras ban tsoro (Ex nA) don Yanki 2, yana ba da sassauci don rarraba yanki daban-daban masu haɗari.

Gine-ginen na firikwensin na ciki ya ƙunshi nau'in piezoelectric mai ɗaukar hoto na tsakiya wanda aka yi da kayan polycrystalline. Wannan ƙira yana ba da kyakkyawan kwanciyar hankali, ƙarancin hankali, da tsayin juriya ga maƙarƙashiya da zafin jiki. Na'urorin lantarki masu haɗaɗɗiyar haɗin kai suna canza cajin da keɓaɓɓen piezoelectric ya haifar zuwa sigina na yanzu. Fitowar da aka daidaita ta yanzu (tsarin waya 2) tana ɗaukar iko biyu zuwa firikwensin da sigina daga firikwensin akan madugu guda biyu, sauƙaƙe cabling da rage farashin shigarwa. Saboda fitarwar sigina ce ta yanzu, yana da matukar damuwa ga ƙarfin kebul da tsangwama na lantarki, yana ba da izinin kebul ɗin tafiyar mita ɗari da yawa ba tare da raguwa ko lalacewa ba.

Dukkanin sarkar ma'auni daga abin ji zuwa mai haɗawa ana kiyaye shi ta hanyar aikin injiniya mai hatimi. Shugaban firikwensin yana waldashi zuwa bututun kariya na bakin karfe mai sassauƙa (1.4541), wanda kuma ana walda shi zuwa gidan lantarki (1.4441). Wannan ci gaba da taron welded yana tabbatar da cewa babu danshi, mai, ko gurɓataccen abu da zai iya shiga cikin abubuwan ciki. An ƙera bututun kariya don jure maimaita jujjuyawa da damuwa na inji, yana mai da CE281 444-281-000-112 dacewa don shigarwa inda kebul ɗin dole ne a bi da shi ta wurare masu tsauri ko motsi a cikin yankuna masu haɗari.

Gidajen na'urorin lantarki yana ƙunshe da duk na'urorin sanyaya sigina, gami da caje-zuwa-canzawa na yanzu, mai sarrafa wutar lantarki, da direban fitarwa. Don shigarwar Ex, an ƙera na'urorin lantarki tare da shingen tsaro na ciki waɗanda ke iyakance ƙarfin da ke akwai ga firikwensin, yana hana ƙonewar yanayi mai fashewa. An ƙididdige gidaje don aiki har zuwa 125 ° C, wanda ya isa ga yawancin aikace-aikacen masana'antu inda za'a iya sanya na'urar lantarki daga nesa daga kan firikwensin zafi. Shugaban firikwensin, wanda aka ƙididdige shi zuwa 260 ° C, ana iya sanya shi kai tsaye a kan saman injina masu zafi, yayin da na'urorin lantarki za su iya kasancewa a cikin yanki mai sanyaya, godiya ga tsayin kebul mai sassauƙa (akayyade a oda). Wannan rabuwa na yankunan thermal yana ƙaddamar da rayuwar tsarin gaba ɗaya da aminci.

Mai haɗin bayoneti (MS3112E8-3P) an yi shi da bakin karfe kuma yana ba da haɗin kai mai sauri, tabbataccen kullewa. Na'ura mai haɗawa ta bayoneti yana tabbatar da amintaccen haɗi mai jurewa girgiza yayin da ke ba da damar sauya kebul mai sauƙi ko canjin firikwensin-fitar ba tare da kayan aiki ba. Don aikace-aikacen Ex, mai haɗa mating da igiyoyi dole ne su kasance na nau'ikan da aka yarda da su (misali, masu haɗin bayoneti na CG134 tare da takaddun shaida da suka dace) don kiyaye amincin tsarin aminci. Dole ne wayoyi su bi ƙayyadaddun sigogi da aka bayar a cikin takaddun shaida na Ex, gami da matsakaicin ƙarfin lantarki, na yanzu, da iyakokin iya aiki.

CE281 444-281-000-112 an tabbatar da dual-certified don Ex ia da Ex nA, ma'ana ana iya amfani da shi a cikin Zone 0 (yanayin fashewa mai ci gaba) tare da shingen tsaro na ciki, da kuma Zone 2 (yanayin fashewa na lokaci-lokaci) tare da kariya. Rarraba zafin jiki T6…T2 yana rufe kewayon yanayin zafi mai yawa, tare da ainihin T-code dangane da zafin yanayi da takamaiman sigogin ƙira. Don madaidaicin lambar T-code da sharuɗɗa na musamman don amintaccen amfani, koma zuwa takamaiman takaddun shaida na Ex (KEMA 04 ATEX 1055, IECEx DEK 15.0029, da sauransu) da ake samu daga Meggitt.

Daidaitaccen sigar bayoneti (444-281-000-012) ba-Ex; sigar Ex tare da bayoneti (444-281-000-112) da sigar Ex tare da haɗin zaren (444-281-000-212) suna ba da damar yanki mai haɗari. CE281 444-281-000-112 don haka shine zaɓin da aka fi so don kowane shigarwa inda gas mai ƙonewa, tururi, ko ƙura na iya kasancewa.

Ka'idojin Shigarwa da Haɗawa

Shigarwa mai kyau yana da mahimmanci don cimma ƙayyadaddun aikin da kiyaye takaddun shaida na CE281 444-281-000-112. Jagororin masu zuwa sun dogara ne akan shawarwarin shawarwarin Meggitt da buƙatun takaddun takaddun Ex:

• Sensor Head Mounting - An amintar da kan firikwensin ta amfani da M4 × 16 Allen bolts da M4 spring-lock washers uku. Matsakaicin ƙarfin ƙarfin da aka ba da shawarar shine 4.5 Nm (3.3 lb-ft). Wurin hawa ya kamata ya zama lebur, mai tsabta, kuma ba shi da burbushi ko fenti don tabbatar da cikakkiyar lamba da daidaitaccen ɗaukar nauyi. Don ingantacciyar amsa mai girma, ana ba da shawarar ƙarewar 1.6 µm (63 µin) ko mafi kyau.

• Kayan Wutar Lantarki - Ana ɗora gidaje na lantarki ta amfani da M6 × 35 Allen bolts tare da M6 spring-lock washers, torqued zuwa 15 Nm (11.1 lb-ft). Ana iya haɗa murfi zuwa maƙalli, panel, ko tsarin injina. Tabbatar cewa saman hawa yana da tsauri don gujewa motsin dangi tsakanin casing da kan firikwensin, wanda zai iya haifar da damuwa na USB.

• Hanyar Kebul - Ya kamata a kori bututun kariya mai sassauƙa tare da radius na lanƙwasa wanda ke guje wa ƙullewa ko murkushewa. Yayin da ba a bayyana takamaiman ƙaramin radius na lanƙwasa a cikin takardar bayanan ba, aikin gama gari don nau'ikan bututun ƙarfe iri ɗaya shine kiyaye radius na aƙalla mm 50 (2 in). Kiyaye kebul ɗin a tsaka-tsaki na yau da kullun ta amfani da shirye-shiryen P-clips ko haɗin kebul, amma guje wa wuce gona da iri wanda zai iya lalata bututun. Kada ka sanya kebul ɗin zuwa maimaita jujjuyawar lokaci ɗaya, saboda wannan na iya haifar da gajiya.

• Haɗin Wutar Lantarki - Ex ia Tsaro na Ciki - Don shigarwar Ex ia, dole ne a haɗa firikwensin ta hanyar ƙungiyar rabuwa ta galvanic da aka amince (misali, GSI127) ko wani shinge mai aminci na ciki wanda ke iyakance ƙarfin lantarki da na yanzu zuwa matakan da aka kayyade a cikin takardar shaidar Ex. Wutar lantarki dole ne ya kasance tsakanin 15 zuwa 28 VDC, da kuma halin yanzu tsakanin 5 da 8 mA. Iyakar kebul da inductance dole ne su kasance cikin iyakoki da aka halatta don gujewa kunna wuta. Dole ne a haɗa fil ɗin haɗin bayoneti B da C tare a waje (kamar yadda aka nuna a zanen wayoyi) - ana yin wannan yawanci a cikin mahaɗin mating ko akwatin junction. Yi amfani da ingantattun igiyoyi da masu haɗin kai (misali, CG134 tare da takaddun shaida) don kiyaye amincin aminci.

• Haɗin Wutar Lantarki - Ex nA Ƙarfafawa - Don shigarwa na Ex nA, sigogin lantarki iri ɗaya suna aiki, amma buƙatun shinge ba su da ƙarfi. Koyaya, duk wayoyi dole ne a yi su bisa ga sharuɗɗan takaddun shaida na Ex nA, gami da amfani da igiyoyin igiyoyi masu dacewa da shinge don hana walƙiya yayin aiki na yau da kullun.

• Grounding da Garkuwa - Ƙaƙƙarfan yanayin yanayin yana nufin cewa ba shugaban firikwensin ko rumbun lantarki ba a haɗa ta hanyar lantarki zuwa ƙasan sigina. Wannan yana hana madaukai na ƙasa. Koyaya, don shigarwar Ex, garkuwa da ƙasa dole ne a yi su bisa ga buƙatun takaddun shaida na Ex, yawanci ya haɗa da ƙasa mai kariya a sashin kulawa. Bi jagororin a cikin littafin shigarwa don CExxx da PVxxx firikwensin girgiza da takamaiman takaddun Ex.

• La'akari da thermal - Tabbatar da cewa an yi amfani da kan firikwensin a cikin kewayon yanayin zafin sa. Idan an ɗora kan firikwensin akan saman da ya wuce 260 ° C, yi amfani da kayan hana ruwa na thermal (MA133) ko adaftar ɗawainiya (TA102, TA104) don rage canjin zafi. Dole ne a kiyaye gidaje na lantarki a ƙasa da 125 ° C; idan yanayin yanayi ya fi girma, samar da sanyaya tilas ko ƙaura da mahalli zuwa yankin mai sanyaya.

• Kariyar Wuri Mai Haɗari - Dole ne ƙwararrun ma'aikatan da aka horar da su su aiwatar da shigarwa. Duk wayoyi, igiyoyin igiya, da akwatunan mahaɗa dole ne su bi ƙa'idodin gida da ƙa'idodin Ex. Dole ne a kiyaye firikwensin firikwensin da igiyoyin da ke da alaƙa daga lalacewar injina da harin sinadarai. Dubawa da kulawa akai-akai kamar yadda tsarin aminci na shuka ya zama tilas.

• Gudanarwa - Kafin ƙarfafawa, tabbatar da cewa duk haɗin kai daidai ne kuma an shigar da shingen Ex ko sassan rabuwa da kyau. Yi gwajin aiki ta amfani da sanannen tushen jijjiga don tabbatar da hankali da fitarwa na halin yanzu. Yi rikodin halin yanzu da matakan sigina don tunani na gaba.

Gudanarwa da Tabbatarwa

Bayan shigarwa, CE281 444-281-000-112 ya kamata a tabbatar da shi ta amfani da sanannen tushen jijjiga ko na'ura mai ɗaukar hoto. Yanayin fitarwa ya kamata ya zama daidai da saurin da aka yi amfani da shi; Ana iya yin gwajin sanin hankali ta hanyar amfani da sananne g-level da auna canjin halin yanzu. Ya kamata halin yanzu son zuciya ya kasance tsakanin 5 zuwa 8 mA lokacin da babu jijjiga. Bugu da ƙari, tabbatar da cewa haɗin haɗin haɗin yana amintacce kuma ci gaban garkuwar ba ta nan. Don saka idanu na dogon lokaci, ana ba da shawarar bincika tsarin lokaci-lokaci (misali, yayin kiyayewa na yau da kullun) don tabbatar da firikwensin da na'urorin lantarki suna aiki daidai. A cikin shigarwar Ex, tabbatar da cewa shinge ko keɓewa yana aiki a cikin ƙayyadaddun sigoginsa.

Bayanin oda

An ba da umarnin CE281 444-281-000-112 ta amfani da ƙima mai zuwa:

A lokacin da oda da CE281 444-281-000-112, saka da ake bukata na USB tsawon (idan factory-taru da wani takamaiman tsawon, ko da yake na na USB tsawon aka gyarawa a yi; tuntuɓi Meggitt ga al'ada tsawo). Hakanan nuna kowane buƙatu na musamman don takardar shedar Ex (misali, T-code, takamaiman ƙungiyar gas). Takaddun takaddun shaida na Ex (ATEX, IECEx, da sauransu) an samar da samfur ɗin akan buƙata.

Na'urorin haɗi

Akwai kewayon na'urorin haɗi don dacewa da CE281 444-281-000-112, sauƙaƙe shigarwa, haɓaka kebul, da haɗin tsarin a wurare masu haɗari:

Lura: Lokacin yin odar majalissar kebul ko masu haɗin kebul don CE281 444-281-000-112, tabbatar da an basu bokan don amfani a wurare masu haɗari kuma sun dace da mai haɗin bayoneti (MS3112E8-3P). Mai haɗa mating shine nau'in bayoneti na CG134 (MS3112E08-3S) tare da takaddun shaida da suka dace (misali, don amfani da kebul na K210). Koyaushe koma zuwa takaddun shaida na Ex don takamaiman sigogin aminci (mafi girman ƙarfin lantarki, halin yanzu, ƙarfin aiki, inductance) na gabaɗayan madauki.

Rushewa da Yarda da Muhalli

A ƙarshen rayuwar sabis ɗin, CE281 444-281-000-112 ya kamata a zubar da shi daidai da ƙa'idodin muhalli na gida. Firikwensin ya ƙunshi gami da INCONEL, bakin karfe, da kayan lantarki. A cikin Tarayyar Turai, Dokar Waste Electrical and Electronic Equipment (WEEE) tana aiki - tara daban da sake amfani da su wajibi ne. Meggitt yana goyan bayan zubar da haƙƙin muhalli kuma yana iya ba da shawara kan hanyoyin sake amfani da su.