I-EXTECH 407780A Ihlanganisa Imitha Yezinga Lomsindo kanye neDatalogger

Ulwazi Lomkhiqizo

I-Extech Instruments Model 407780A iyimitha Yezinga Lomsindo kanye ne-Datalogger eklanyelwe ukukala amazinga omsindo ngaphansi kwezimo ezihlukahlukene. Iza nezici ezimbalwa futhi ithunyelwa ihlolwe ngokugcwele futhi ilinganiselwe ukusebenza okuthembekile. Le divayisi inikeza izilinganiso ezinembile zeleveli yomsindo futhi ifanele kokubili ukusetshenziswa kochwepheshe nokomuntu siqu.

Izici Eziyinhloko:

• Imakrofoni yenkundla yamahhala engu-1/2-intshi
• Isibonisi se-LCD sokufundeka kalula
• Inkinobho yamandla yokuvula/ukuvala imitha
• Inkinobho yokukhetha ye-Leq/SEL/SPL yokukhetha izinga lokufunda elihlukile
• Inkinobho ethi RUN/Misa kancane ukuze ulawule inqubo yokulinganisa
• PHEZULU/PHANSI izinkinobho zokusetha ububanzi bokulungisa ububanzi bokulinganisa
• Iswishi ye-A/C ye-Frequency weighting yokukhetha i-frequency weighting oyifunayo
• Izinketho zesikhathi EZISHESHAYO/EZINGENZAYO/EZIMPHUMELA zokukhetha isikhathi sokuphendula

Imiyalo yokusetshenziswa komkhiqizo

Ukuze usebenzise i-Extech Instruments Model 407780A Sound Level Meter kanye ne-Datalogger, landela lezi zinyathelo:

1. Cindezela inkinobho yamandla ukuze uvule imitha. Isimo sokuqala sizoncika ezimweni ezibekwe ngesikhathi sokusetshenziswa kokugcina.
2. Cindezela inkinobho ye-A/C ukuze ukhethe isisindo sefrikhwensi oyifunayo. Khetha phakathi kwesisindo esingu-A noma esingu-C esisekelwe kumazinga endawo nezimfuneko.
3. Cindezela inkinobho ethi FAST/SLOW/IMPULSE ukuze ukhethe isikhathi sokuphendula osithandayo. Bheka izindinganiso zendawo nemithetho ukuze unqume isikhathi esifanele sokuphendula sezilinganiso zakho.

Qaphela: Kubalulekile ukubhekisela kumazinga nemithetho yendawo lapho ukhetha isisindo esifanele sefrikhwensi nesikhathi sokuphendula sezilinganiso zakho. Izidingo zingahluka ngokuya ngezwe kanye nohlobo lokuhlolwa okwenziwayo. Ngokuhlolwa kwendawo yokusebenza, i-OSHA incoma ukusebenzisa i-Slow and A-weighting.

Ukuhumusha okwengeziwe kwemanuwali yomsebenzisi kutholakala ku- www.extech.com

Isingeniso

Siyabonga ngokukhetha i-Extech Instruments Model 407780A. Le divayisi ithunyelwa ihlolwe ngokugcwele futhi yalinganiswa futhi, ngokusetshenziswa kahle, izohlinzeka ngeminyaka yesevisi ethembekile. Sicela uvakashele wethu webisiza (www.extech.com) ukubheka inguqulo yakamuva yale Mhlahlandlela Womsebenzisi, Ukuvuselelwa Komkhiqizo, kanye Nokwesekwa Kwamakhasimende.

Izici

Insimbi iqukethe izici ezimbalwa ezivumela ukukalwa kwezinga lomsindo ngaphansi kwezimo ezihlukahlukene.

Izici zifaka:

• Izigaba ezinhlanu zokulinganisa
• Izilungiselelo zesisindo esisheshayo, esinensayo kanye nese-Impulse
• Izilungiselelo zokukala imvamisa ka-A no-C
• Isitoreji samarekhodi okulinganisa angafika ku-32000
• Imbobo ye-serial ye-USB yokulanda amarekhodi kukhompuyutha noma ukuhlaziya isikhathi sangempela
• Imiphumela yesignali ye-AC/DC itholakala kusokhethi eyodwa evamile engu-3.5mm coaxial elungele ukusetshenziswa ne-frequency analyzer, irekhoda ileveli, i-FFT analyzer, i-graphic recorder, njll.
• I-Leq, SEL, SPL MAX, SPL MIN, PH (Peak Hold), L05, L10, L50, L90, ne-L95, amapharamitha akaliwe ayishumi ayagadwa ngesikhathi sokulinganisa
• Isikhathi sokulinganisa esisethiwe
• Isixhumi esiphumayo se-alamu yezinga lomsindo

Ukunakekelwa Kwezinsimbi

• Ungazami ukususa ikhava yemeshi kumbhobho njengoba lokhu kuzodala umonakalo futhi kuthinte ukunemba kwethuluzi.
• Vikela insimbi emthelela. Ungayiwisi noma uyiphathe kabi. Ihambise ngebhokisi eliphethe ohlinzekiwe.
• Vikela ithuluzi emanzini, othulini, emazingeni okushisa aphezulu, umswakama ophezulu kanye nelanga eliqondile phakathi nokugcinwa nokusetshenziswa.
• Vikela ithuluzi emoyeni ngosawoti omningi noma okuqukethwe kwesibabule, amagesi namakhemikhali agciniwe, njengoba lokhu kungalimaza imakrofoni ethambile nezinto zikagesi ezizwelayo.
• Vala ithuluzi njalo ngemva kokulisebenzisa. Khipha amabhethri kuthuluzi uma lingeke lisetshenziswe isikhathi eside. Ungawashiyi amabhethri aphelile ensimbini, njengoba angase avuze futhi adale umonakalo.
• Hlanza insimbi kuphela ngokuyisula ngendwangu ethambile, eyomile noma, uma kunesidingo, ngendwangu efakwe amanzi kancane. Ungasebenzisi izincibilikisi, iziqhumiso, utshwala noma izinto zokuhlanza.

Incazelo Yemitha

1. Imakrofoni yenkundla yamahhala engu-1/2-intshi
2. Isibonisi se-LCD
3. Inkinobho yamandla
4. Leq / SEL / SPL inkinobho yokukhetha
5. Inkinobho ethi REN / Misa isikhashana
6. PHEZULU/PHANSI izinkinobho zokusetha ububanzi.
7. A / C Iswishi yokulinganisa imvamisa
8. FAST / SLOW / IMPULSE isikhathi sokukala isisindo khetha switch
   • UKUSHESHA: 125ms, KANCANE: 1 isekhondi, IMPULSE: 35ms ngokubola kancane
9. MAX inkinobho
10. Inkinobho REKHODI / ERASE
11. Inkinobho yewashi lesikhathi sangempela
12. Inkinobho yesikhathi sokuhlanganisa
13. Okukhipha i-alamu
14. Ukukhishwa kwe-AC / DC
15. Ukulungiswa kwe-CAL (ukulinganisa).
16. Okokufaka kwamandla kwangaphandle
    • Okokufaka kwe-USB (kuphansi, akubonisiwe)
    • Isikulufu sokukhweza se-Tripod (sitholakala ngemuva, asibonisiwe)
    • Ikhava yebhethri (itholakala ngemuva, ayibonisiwe)

Bonisa Incazelo

1. Isikhombi sebanga lomsindo (ububanzi obu-5): 30–90dB, 40–100dB, 50–110dB, 60–120dB kanye no-70–130dB
2. Igrafu yebha imelela izinga lamanje lomsindo (ukulungiswa kwe-1dB).
3. Inkomba yosuku/isikhathi nesikhathi esedlule: unyaka – inyanga – usuku noma ihora: umzuzu : isekhondi. Ngesikhathi sokuhlanganisa le nkomba ibonisa isikhathi esidlulile ngemizuzwana. Nini viewUkubamba Inani Eliphakeme Le nkomba ibonisa PH. Nini viewUma ubheka amanani ephesenti le nkomba ibonisa L:05, L:10, L:50, L:90 noma L:95.
4. I-Leq: Ileveli yomsindo eqhubekayo elinganayo yokufunda
5. I-SEL: Ukufundwa kwezinga lokuvezwa komsindo
6. I-SPL: Ileveli yomsindo enesisindo sesikhathi sokufunda Izinga Lokucindezela Komsindo
7. Inkomba yebhethri ephansi
8. UKUBUKA: Uma kuboniswa ukucwayiza kukhombisa ukuthi ukufundwa ngeleveli yomsindo enesisindo esiphezulu isikhathi kuyakhonjiswa. Uma iboniswa iqinile ikhombisa ukuthi ukufundwa kwezinga eliphezulu lomsindo kuyavezwa.
9. MIN: Ukufundwa kwezinga lomsindo elincane.
10. I-REC : Ibonisa ukuthi ukurekhodwa kwedatha kuyaqhubeka
11. Ukufundwa kwezinga lomsindo (ukulungiswa okungu-0.1dB): 30.0 – 130.0dB
12. OKUGCWELE: Kubonisa ukuthi ibhange lememori yokuqopha seligcwalisiwe
13. I-dB: Iyunithi yezinga lomsindo (decibel)
14. A, C: A noma C inkomba yesisindo.
15. I-IMP: Inkomba yesisindo sesikhathi somfutho
16. PHEZULU: Isibonisi sobubanzi obungaphezu kobubanzi sibonakala sibaneka uma izilinganiso zobubanzi obungaphezulu zifakwe kuseshini yokurekhoda idatha yezinga lomsindo wokulinganisa.
17. I-SLOW: Inkomba yesisindo sesikhathi esincane
18. I-FAST: Inkomba yesisindo esisheshayo
19. ◼ : Ibonisa ukuthi ukuhlanganisa izilinganiso zeleveli yomsindo kumisiwe.
20.  : Ibonisa ukuthi ukuhlanganisa izilinganiso zeleveli yomsindo kumisiwe okwesikhashana.
21. ► : Isikhombi sokulinganisa sokuqala nesiqhubekayo sokuhlanganisa.
22.  NGAPHANSI: Inkomba engaphansi kobubanzi ibonakala ibaneka uma izilinganiso ezingaphansi kobubanzi zifakiwe kuseshini yokurekhoda idatha yezinga lomsindo.

Ukusebenza

Imitha inezindlela ezimbili zokusebenza, imodi ye-Sound Level Meter kanye ne-Integrating Sound Level Meter mode.

Izilinganiso Zemitha Yezinga Lomsindo

1. Cindezela inkinobho inkinobho yokuvula imitha. Isimo sokuqala sincike ezimeni ezibekwe lapho imitha igcina ukucishwa.
2. Cindezela inkinobho ye-A/C ukuze ukhethe isisindo sefrikhwensi oyifunayo.
3. Cindezela inkinobho ethi FAST/SLOW/IMPULSE ukuze ukhethe isikhathi sokuphendula osifunayo. Qaphela: Bheka izindinganiso zendawo ukuze ukhethe isisindo esifanele nesikhathi sokuphendula ukuze kwenziwe izilinganiso. Izidingo ziyahlukahluka kuye ngezwe kanye nohlobo lokuhlolwa. I-OSHA idinga Isisindo Esinensayo Nesi-A ezivivinyweni eziningi zendawo yokusebenza.
4. Sebenzisa izinkinobho ▲▼ ukuze ukhethe ububanzi obufunekayo be-dB. Khetha isilungiselelo lapho inkomba yegrafu yebha ibhalisa khona cishe phakathi nobubanzi. Uma inkomba ethi OVER ivela phakathi nesilinganiso, umkhawulo ongaphezulu wobubanzi obukhethiwe weqiwe. Nyusa isethingi yobubanzi kuze kube yilapho uphawu luhlala luvaliwe phakathi nezilinganiso. Ngokufanayo, uma inkomba ethi UNDER ivela, yehlisa ukusetha ibanga kuze kube uphawu luhlala luvaliwe. Zombili izinkomba azixhumeki futhi zizosula lapho kukhethwa ububanzi obufanele.
5. Bamba insimbi ngokunethezeka ngesandla (ikude nomzimba) noma uyibeke ku-tripod. Khomba imakrofoni emthonjeni womsindo, izinga lokucindezela komsindo lizoboniswa kusibonisi se-LCD semitha
6. Inkomba yeleveli yezinombolo esibonisini ibonisa ileveli yomsindo ekalwayo njengamanje. Ukufundwa kubuyekezwa kanye ngomzuzwana.
7. Cindezela inkinobho engu-MAX ukuze ubonise izinga eliphezulu lomsindo okuhlangatshezwane nalo ngesikhathi sokulinganisa; inkomba engu-MAX izocwayiza ivela esibukweni. Cindezela inkinobho ye-MAX futhi ukuze uphume kule modi
8. Cindezela DATE/TIME ukuze ushintshe kusukela ehoreni lesikhathi samanje : iminithi : isibonisi sesibili sibe unyaka wedethi yamanje – inyanga – isibonisi sosuku. Isibonisi sizobuyela kusibonisi sesikhathi samanje ngemva kwamasekhondi angu-2.

Ukuhlanganisa izilinganiso Zemitha Yezinga Lomsindo 

Imodi yeleveli yomsindo ehlanganisayo izokala ileveli yomsindo ngokuhamba kwesikhathi futhi ibale imiphumela elandelayo:

• I-Leq Equivalent yokulinganisa izinga lomsindo eliqhubekayo
• I-SEL Isilinganiso sezinga lokuvezwa komsindo
• I-SPL MAX Isilinganiso esiphezulu sezinga lomsindo
• I-SPL MIN Isilinganiso esincane somsindo).
• (PH) Isilinganiso Sezinga Lomsindo Ophakeme Sokubamba
• Isilinganiso sezinga lomsindo we-Percentile (L05, L10, L50, L90 ne-L95)

Uma usebenzisa le mitha kumodi ngaphandle kwemodi yokulinganisa izinga lomsindo, yonke imisebenzi yokucubungula ehlinzekwa imitha yenziwa kanyekanye. Okwesiboneloample, lapho kukhethwa izinga elilinganayo lokulinganisa izinga lomsindo eliqhubekayo izinga lokuchayeka kanye nezinga lephesenti liyanqunywa.

1. Cindezela inkinobho ukuze uvule imitha.
2. Cindezela inkinobho ye-A/C ukuze ukhethe isisindo sefrikhwensi oyifunayo.
3. Cindezela inkinobho ethi FAST/SLOW/IMPULSE ukuze ukhethe isikhathi sokuphendula osifunayo.
4. Sebenzisa izinkinobho ▲▼ ukuze ukhethe ububanzi obufunekayo be-dB. Khetha isilungiselelo lapho inkomba yegrafu yebha ibhalisa khona eduze kwamaphakathi nobubanzi. Uma izinkomba ze-OVER noma EZINGAPHANSI ziVULA njalo, shintsha ukulungiselelwa kobubanzi bezinga.
5. Ukusetha isikhathi sokulinganisa sokuhlanganisa. (Okuzenzakalelayo noma Mathupha)

Izikhathi ezizenzakalelayo:

• Cindezela inkinobho ye-INTEG TIME kanye ukuze ukhethe isikhathi sokuhlanganisa esizenzakalelayo.
• Sebenzisa izinkinobho▼▲ ukuze ukhethe isikhathi sokulinganisa.
• Ukukhetha kuzojikeleza: 1sec, 3sec, 10sec, 30sec, 1min, 5min, 8min, 10min 15min, 30min, 1hour, 8hours,24hours.
• Ngemva kwamasekhondi angu-5 okungasebenzi imitha izogcina okukhethiwe okubonisiwe bese ibuyela kumodi evamile.

Isikhathi sokusetha mathupha:

• Cindezela bese ubamba INTEG TIME amasekhondi angu-3 ukuze usethe mathupha isikhathi sokuhlanganisa.
• Ikhesa ekhanyayo ikhombisa ipharamitha ekhethiwe (amasekhondi).
• Sebenzisa izinkinobho ▼▲ ukuze usethe isekhondi oyifunayo.
• Cindezela inkinobho YESIKHATHI INTEG ukuze uye kupharamitha elandelayo (amaminithi), phinda le nqubo kuze kube amaminithi namahora afunekayo asethiwe. Cindezela inkinobho INTEG TIME ukuze ugcine isilungiselelo futhi uphume kule modi. Isikhathi sokulinganisa esiphezulu amahora angu-100.
• Ukuze ukhethe isikhathi sokuhlanganisa esihlelwe mathupha, Cindezela inkinobho ye-INTEG TIME kanye. Sebenzisa izinkinobho▼▲ ukuze ukhethe isikhathi sokulinganisa esihleliwe.
• Ngemva kwamasekhondi angu-5 okungasebenzi imitha izogcina okukhethiwe okubonisiwe bese ibuyela kumodi evamile.

1. Ukurekhoda amanani akho, cindezela inkinobho REC ngaphambi kokucindezela inkinobho ethi Run ► ‖.
2.  Cindezela inkinobho ► ‖ ukuqalisa ukulinganisa, ►uphawu nesikhathi sokulinganisa esesidlulile siyavezwa.

• Uma isikhathi sokulinganisa sesidlulile, ukulinganisa kuyaphela ngokuzenzakalelayo futhi uphawu ◼ luyavezwa.
• Ngesikhathi sokulinganisa, inkinobho ► ‖ ingasetshenziswa ukumisa isikhashana futhi uqalise kabusha ukuhlola.
• Ngesikhathi sokuphumula, uphawu lokumisa ‖ luyavezwa.
• Ukumisa isilinganiso, cindezela bese ubamba inkinobho ethi ► ‖ imizuzwana emi-2.
• Uma isimo esingaphansi noma esingaphezu kobubanzi senzeka okungenani kanye phakathi nokulinganisa, inkomba ethi OVER noma UNDER ibonakala ibonisa ukuthi idatha erekhodiwe iqukethe idatha yobubanzi obungaphezu kobubanzi noma obungaphansi kobubanzi.
• Phakathi nale nqubo iningi lezinkinobho, njengenkinobho ye-A/C nezinkinobho zobubanzi, awasebenzi. Inkinobho ► ‖ kuphela kanye nezinkinobho ze-Leq SEL SPL ezingasetshenziswa. Zonke ezinye izilungiselelo kufanele zenziwe ngaphambi kokuqala ukulinganisa.
• Izikhawu zokumisa okwesikhashana azifakiwe esikhathini sokulinganisa.

1. Phinda ufunde amanani akaliwe (Ungaphumi kumodi yokulinganisa) Uma ukulinganisa sekuqediwe, kumiswe isikhashana noma kuqhubeka. Cindezela inkinobho ye-Leq SEL SPL ukuze ujikeleze futhi ubonise imiphumela yokulinganisa elandelayo.
   • I-Leq : Ileveli yomsindo eqhubekayo efanayo nesikhathi sokulinganisa sokuqala.
   • I-SEL : Izinga lokuvezwa komsindo nesikhathi sokulinganisa sokunqamula.
   • I-SPL MAX : Izinga eliphezulu lomsindo ngesikhathi.
   • I-SPL MIN : Izinga elincane lomsindo ngesikhathi.
   • PH : Izinga lomsindo lokubamba phezulu
   • L:05→5% izinga lomsindo wephesenti
   • L:10→10% izinga lomsindo wephesenti
   • L:50→50% izinga lomsindo wephesenti
   • L:90→90% izinga lomsindo wephesenti
   • L:95→95% izinga lomsindo wephesenti
   • I-SPL INST→ Izinga lomsindo lamanje nesikhathi samanje.
   • Uma i-OVER ikhanya, idatha erekhodiwe iqukethe izilinganiso zobubanzi obungaphezulu.
   • Uma i-UNDER ikhanya, idatha erekhodiwe iqukethe izilinganiso ezingaphansi kobubanzi.
2. Cindezela bese ubamba inkinobho ethi ► ‖ imizuzwana emi-2 ukuze uphume kule modi yokulinganisa, usule umphumela olinganisiwe, futhi ubuyele kumodi evamile yokulinganisa izinga lomsindo.

Ukusetha Isikhathi Samanje Nosuku
Ulwazi lwedethi nesikhathi lugcinwa ngebhulokhi ngalinye lerekhodi eligciniwe. Ngakho-ke, kubalulekile ukuqinisekisa ukuthi lolu lwazi lulungile.

1. Cindezela ukucisha imitha.
2. Cindezela bese ubamba inkinobho ethi DATE TIME bese ucindezela inkinobho ethi inkinobho yokuvula imitha ukuze ufake imodi yokusetha idethi nesikhathi.
3. Ikhesa ekhanyayo ikhombisa ipharamitha ekhethiwe (amasekhondi), sebenzisa izinkinobho ▲▼ ukuze usethe isekhondi lamanje.
4. Cindezela inkinobho USUKU LWESIKHATHI ukuze uye kupharamitha elandelayo (amaminithi) futhi usebenzise izinkinobho ▲▼ ukusetha iminithi yamanje.
5. Phinda isinyathelo sesi-4 ukuze usethe ihora lamanje, usuku, inyanga, nonyaka.
6. Cindezela DATE TIME ukuze ugcine idethi entsha nesikhathi, futhi uphume kule modi.

Idatha Yokurekhoda
Kumodi Yemitha Yezinga Lomsindo Yokuhlanganisa imitha ingarekhoda futhi igcine idatha yokulinganisa. Umthamo wememori ungamarekhodi angama-32000 angagcinwa kumabhulokhi angama-255. Ukurekhoda kungaqala lapho ukuhlanganiswa kuqala noma ngesikhathi esimisiwe. Idatha egciniwe ayikwazi ukuba viewed esibukweni semitha; kufanele ilandwe kusetshenziswa isofthiwe ye-PC etholakalayo.

1. Ukusetha idatha sampisilinganiso sezilimi.
   • Cindezela inkinobho ukuze uvale imitha.
   • Cindezela bese ubamba inkinobho ethi INTEG TIME bese uvula imitha, uphawu lwe-Intr kanye ne-s.ample rate ngemizuzwana izoboniswa.
   • Sebenzisa izinkinobho▲▼ ukusetha u-sampisilinganiso se-ling (imizuzwana engu-1 kuye ku-255).
   • Cindezela u-INTEG TIME ukuze ugcine isilungiselelo bese uphuma kule modi.
2. Setha imisebenzi yokuhlanganisa njengoba kuchazwe ngaphambilini.
3. Cindezela inkinobho ethi RECORD ERASE ukuze ulungiselele ukurekhoda. Uphawu lwe-REC luzovela esibukweni.
4. Cindezela inkinobho ► ‖. Izilinganiso zizoqala futhi uphawu lwe-REC luzoqala ukukhanya, okubonisa ukuthi idatha iyagcinwa.
5. Uma ukuhlanganisa kumisiwe, ukurekhoda kuzophumula.
6. Uma inkumbulo igcwaliswa (kusetshenziswe amaphuzu edatha angu-32000 noma amabhulokhi angu-255), uphawu lwe-REC FULL luzovezwa.
7. Ukusetha umsebenzi wokuqopha ukuthi uqale ngesikhathi esimisiwe;
   • Cindezela bese ubamba inkinobho ethi DATE TIME amasekhondi angu-2 ukuze ufake imodi yezilungiselelo zesikhathi sokuqala sokurekhoda PRESET, uphawu lwe-PrE luzovela.
   • Ikhesa ekhanyayo ikhombisa ipharamitha ekhethiwe (amasekhondi), sebenzisa izinkinobho ▲▼ ukuze usethe isekhondi lamanje.
   • Cindezela inkinobho DATE TIME ukuze uye kupharamitha elandelayo (amaminithi) futhi usebenzise izinkinobho▲▼ ukusetha iminithi yamanje.
   • Phinda isinyathelo c) ukuze usethe ihora lamanje, usuku, inyanga, nonyaka.
   • Cindezela DATE TIME ukuze ugcine isikhathi sokuqala, futhi uphume kule modi.
   • Izimpawu ► kanye ‖ zizokhanya kuze kufinyelelwe isikhathi sokuqala. Izimpawu ► kanye ‖ zizobe seziyeka ukucwayiza futhi uphawu lwe-REC luzoqala ukukhanya, okubonisa ukuthi izilinganiso ziyathathwa nokuthi ukurekhoda sekuqalile.

Isula idatha egciniwe

1. Cindezela inkinobho inkinobho yokucisha imitha.
2. Cindezela bese ubamba inkinobho ethi SULA RECORD bese ucindezela inkinobho  inkinobho yokuvula imitha.
3. Uphawu lwe-CLr luzovela esibukweni olubonisa ukuthi idatha isuliwe. Okuphumayo kwe-analogi Okuphumayo kwe-analogi kunikeza amasiginali e-analogi ngokulingana namanani alinganisiwe ezirekhoda namanye amadivaysi. Okuphumayo kudinga ipulaki elincane le-stereo elingu-3.5mm.

AC lokukhipha:
Isignali ye-AC ehambisana nesiginali enesisindo sefrikhwensi iyatholakala kulesi sixhumi.

• Umphumela voltage: 2Vrms+100mVrms (sikala umkhawulo ophezulu)
• Ukuphazamiseka kokuphumayo: cishe. 5 kΩ
• Layisha impedance: ≥1MΩ

Umkhiqizo voltage uma ithuluzi likumodi yokulinganisa (-6dB ukusuka esikalini somkhawulo ongaphezulu, 1000Hz sine wave) ngu-0.5Vrms.

Ukuphuma kwe-DC:
Isignali ye-DC eguqulelwe ileveli ekhiqizwe ukutholwa kwe-RMS nokucindezelwa kwe-logarithmic iyatholakala kulesi sixhumi. Isignali ikhombisa imvamisa kanye nezilungiselelo zesisindo zensimbi.

Umphumela voltage: I-10mV+0.1mV/dB Ukuphazamiseka kokuphumayo: cishe. 5kΩ I-impedance yokulayisha: ≥ 1MΩ Ivolumu yokuphumayotage uma ithuluzi lifunda i-94dB ngokwegama elithi 0.94V DC.

Umthombo wamandla wangaphandle
Faka ipulaki ye-adaptha ye-AC noma iphakethe lebhethri langaphandle kusokhethi ye-DC 6V (DC kusuka ku-5V ukuya ku-6V) eceleni kwethuluzi. Uma isixhumi sishuthekwa kule sokhethi, amabhethri angaphakathi azonqanyulwa futhi ithuluzi lizonikwa amandla kusuka kumthombo wangaphandle. Uphawu lwebhethri eliphansi izovela esibukweni uma ivolumu yangaphandletagi-e ayanele ukuze ithuluzi linikeze izilinganiso ezinembile.

Qaphela: Qinisekisa ukuthi umthombo wamandla wangaphandle uxhumene ne-polarity njengoba kukhonjisiwe kumdwebo olandelayo; uma kungenjalo umonakalo ungadaleka entweni kanye nakumthombo wamandla wangaphandle.

Isikrini somoya
Uma wenza izilinganiso emoyeni onamandla, umsindo womoya kanye nokunyakaza komoya okuqinile kumakrofoni kungabangela amaphutha okulinganisa. Umphumela onjalo ungancishiswa ngokusebenzisa i-windscreen.

Ukukhweza kwe-Tripod
Ezilinganisweni zesikhathi eside, ithuluzi lingakhwezwa ku-tripod yekhamera evamile kusetshenziswa i-integral yangemuva engu-¼” x 20 intambo yokukhweza ye-UNC.

Okukhipha i-alamu
Uma izinga le-dB elilinganisiwe lidlula umkhawulo omisiwe, isignali yomkhawulo izovela kusixhumi esiphumayo se-alamu (okukhiphayo okungu-5Vdc). Isignali yokuphumayo izohlala isebenza inqobo nje uma izinga lomsindo lidlula umkhawulo obekiwe

Ukusetha izinga eliphezulu le-alamu yomsindo:

1. Vala imitha.
2. Cindezela futhi ubambe inkinobho ye-LEQ SEL SPL ngenkathi uvula imitha.
3. Khipha inkinobho ye-LEQ SEL SPL; uphawu lwe-ALARM (kanye nomkhawulo osethiwe njengamanje) luyaboniswa.
4. Sebenzisa izinkinobho ▲ ▼ ukuze usethe izinga eliphezulu lomsindo owuthandayo.
5. Cindezela inkinobho ye-LEQ SEL SPL ukuze ugcine isilungiselelo futhi uphume kule modi.

Isoftware ye-PC
Le mitha inamandla okuxhumana nokuxhumana ne-PC. Hlola ikhasi lokulanda isofthiwe ye- webindawo www.extech.com/software/downloads yenguqulo yakamuva yesofthiwe ye-PC kanye nokuhambisana kwayo nesistimu yokusebenza. Landa futhi uvule isoftware. Qalisa i-ExtechInstaller.exe bese ubhekisela emiyalweni ehlinzekwe kokuthi USIZO Umbuso ngaphakathi kohlelo lwesofthiwe.

Ukulinganisa

Ukulinganisa I-Datalogger Yezinga Lomsindo Edidiyelayo kudinga isilinganisi se-acoustical njenge-Extech Model 407766 noma 407744.

1. Lungiselela imitha kanje:
   • Bonisa: SPL (dBA)
   • Imodi yokulinganisa isikhathi: FAST
2. Faka imakrofoni ekuvulekeni kwesikali se-acoustical.
3. VULA isikhali.
4. Lungisa i-potentiometer yokulinganisa imitha njengoba kukhonjisiwe kumdwebo ohambisana nalesi sibonisi kuze kube yilapho isibonisi semitha sifana nesiginali yokuphumayo yesikali se-acoustical (imvamisa i-94 noma 114dB).
5. Vala isikhali.
6. Susa isilinganisi kumakrofoni kancane kakhulu ukugwema ukulimaza imakrofoni.
7. Ezimweni lapho ukulungisa i-potentiometer kungathinti ukufundwa okubonisiwe, noma lapho ukulungiswa kungakwazi ukukhiqiza ukufundwa okubonisiwe okufanele, sicela ubuyisele iyunithi yesevisi.

Ukunakekela Nokuhlanza

• Isevisi engafakwanga kuleli bhukwana kufanele yenziwe ngabasebenzi abaqeqeshiwe
• Sula ikesi ngezikhathi ezithile ngendwangu eyomile. Ungasebenzisi ama-abrasives noma ama-solvents.

Ukufakwa Kwebhethri
Lapho isithonjana sebhethri esiphansi kuvela esibukweni, awekho amandla anele okwenza izilinganiso ezinembile futhi amabhethri kufanele ashintshwe.

1. Cindezela inkinobho inkinobho yokucisha insimbi.
2. Khulula isikulufu kukhava yebhethri bese ukhipha ikhava endaweni yebhethri. Gcina isikulufu nekhava.
3. Uqaphela i-polarity efanele, faka amabhethri e-AA amane.
4. Faka okunye futhi uvikele ikhava yebhethri.
5. Cindezela inkinobho inkinobho yokuvula insimbi; Hlola ukusebenza okulungile.

Izikhumbuzi Zokuphepha Kwebhethri

• Ungalokothi ulahle amabhethri emlilweni. Amabhethri angase aqhume noma avuze.
• Ungalokothi uhlanganise izinhlobo zebhethri. Njalo faka amabhethri amasha ohlobo olufanayo.

Imininingwane

Amazinga asebenzayo: Ukunemba okuphezulu okungu-±1dB kuhlangabezana namazinga Ekilasi 2 (IEC 61672-2013 kanye ne-ANSI/ASA S1.4/Ingxenye 1)

• I-IEC60651: 1979 Uhlobo 2
• I-IEC60804: 1985 Uhlobo 2

Amapharamitha:

• Izinga lengcindezi yomsindo wokulinganisa imvamisa
• Izinga lokucindezela komsindo we-C frequency weighting
• FAST Fast time weighting
• SLOW Isikhathi esincane sokulinganisa isisindo
• I-IMP Impulse time weighting
• Ileveli yengcindezi yomsindo enesisindo samanje ye-SPL
• I-Leq Equivalent ileveli yomsindo eqhubekayo (A noma C)
• I-SEL Izinga lokuvezwa komsindo (A noma C)
• I-SPL MAX Izinga eliphezulu lokucindezela komsindo (A noma C)
• I-SPL MIN Ileveli yokucindezela yomsindo encane (A noma C)
• I-PH Peak Bamba izinga lokucindezela komsindo (A noma C)
• L:05 5% izinga lomsindo wephesenti (A noma C)
• L:10 10% izinga lomsindo wephesenti (A noma C)
• L:50 50% izinga lomsindo wephesenti (A noma C)
• L:90 90% izinga lomsindo wephesenti (A noma C)
• L:95 95% izinga lomsindo wephesenti (A noma C)
• I-SPL MAX Izinga lokucindezela komsindo elinesisindo esiphezulu sesikhathi (ukucwayiza kophawu lwe-MAX)
  • Ibanga lokulinganisa: 30 kuya ku-130dB
  • Ukunemba: ± 1.0 dB

Ububanzi bokubamba okuphezulu:

• 30 - 90 ububanzi 63 - 93dB Ukubamba Okuphakeme
• 40 - 100 ububanzi 73 - 103dB Ukubamba Okuphakeme
• 50 - 110 ububanzi 83 - 113dB Ukubamba Okuphakeme
• 60 - 120 ububanzi 93 - 123dB Ukubamba Okuphakeme
• 70 - 130 ububanzi 103 - 133dB Ukubamba Okuphakeme

Ileveli yomsindo ozikhiqizela yona:
Amanani ajwayelekile ku-73.4oF (23oC), kusetshenziswa umthamo olinganayo wemakrofoni ongu-27pF (30-90dB ububanzi)

Isisindo	Ezogesi	Ingqikithi
A	22.7db	26.1db
C	21.8db	29.5db

• Ibanga lokusebenza le-Linearity: I-A-weighted, 1000Hz, 60dB ububanzi obuguquguqukayo.
• Isamba sebanga lokusebenza lomugqa: Ngokuvumelana ne-IEC 61672-1, A-weighted, 1000Hz: 30dB kuya ku-130dB.
• Ukukhetha ibanga lezinga: 5 ububanzi ku-10dB izinyathelo 30 kuya ku-90dB , 40 kuya ku-100dB, 50 kuya ku-110dB , 60 kuya ku-120dB, 70 kuya ku-130dB

I-Linear Operating Ranges (LOR)

• IBANGA: 30 – 90 dB. Indawo yokuqala yokuhlola engu-64 dB yazo zonke izisindo namafrikhwensi ngaphandle kuka-31.5Hz A-weighted, lapho iphoyinti lokuqala lingu-44 dB.
  

  IFREQUENCY Hz	ISISINDO	LOR dB	ISISINDO	LOR dB
  31.5	A	36.1 – 50.6	C	39.5 – 87.0
  1000	A	36.1– 90.0	C	39.5 – 90.0
  4000	A	36.1 – 90.0	C	39.5 – 89.2
  8000	A	36.1 – 88.9	C	39.5 – 87.0

• IBANGA: 40 – 100 dB. Indawo yokuqala yokuhlola engu-74 dB yazo zonke izisindo namafrikhwensi ngaphandle kuka-31.5Hz A-weighted, lapho iphoyinti lokuqala lingu-54 dB.
  

  IFREQUENCY Hz	ISISINDO	LOR dB	ISISINDO	LOR dB
  31.5	A	40.0 – 60.6	C	40.0 – 97.0
  1000	A	40.0 – 100.0	C	40.0 – 100.0
  4000	A	40.0 – 100.0	C	40.0 – 99.2
  8000	A	40.0 – 98.9	C	40.0 – 97.0

• IBANGA: 50 – 110 dB. Indawo yokuqala yokuhlola engu-84 dB yazo zonke izisindo namafrikhwensi ngaphandle kuka-31.5Hz A-weighted, lapho iphoyinti lokuqala lingu-64 dB.
  

  IFREQUENCY Hz	ISISINDO	LOR dB	ISISINDO	LOR dB
  31.5	A	50.0 – 70.6	C	50.0 – 107.0
  1000	A	50.0 – 110.0	C	50.0 – 110.0
  4000	A	50.0 – 110.0	C	50.0 – 109.2
  8000	A	50.0 – 108.9	C	50.0 – 107.0

• IBANGA: 60 – 120 dB. Indawo yokuqala yokuhlola engu-94 dB yazo zonke izisindo namafrikhwensi ngaphandle kuka-31.5Hz A-weighted, lapho iphoyinti lokuqala lingu-74 dB.
  

  IFREQUENCY Hz	ISISINDO	LOR dB	ISISINDO	LOR dB
  31.5	A	60.0 – 80.6	C	60.0 – 117.0
  1000	A	60.0 – 120.0	C	60.0 – 120.0
  4000	A	60.0 – 120.0	C	60.0 – 119.2
  8000	A	60.0 – 118.9	C	60.0 – 117.0

• IBANGA: 70 – 130 dB. Indawo yokuqala yokuhlola engu-104 dB yazo zonke izisindo namafrikhwensi ngaphandle kuka-31.5Hz A-weighted, lapho iphoyinti lokuqala lingu-84 dB.
  

  IFREQUENCY Hz	ISISINDO	LOR dB	ISISINDO	LOR dB
  31.5	A	70.0 – 90.6	C	70.0 – 127.0
  1000	A	70.0 – 130.0	C	70.0 – 130.0
  4000	A	70.0 – 130.0	C	70.0 – 129.2
  8000	A	70.0 – 128.9	C	70.0 – 127.0

• Ibanga lemvamisa: Sekukonke izici ezihlanganisa imakrofoni: 31.5 kuya ku-8000Hz
• Isisindo semvamisa: A, ihlangabezana nezidingo ze-IEC 61672-1 zesigaba 2 A sokukala. C, ihlangabezana nemfuneko ye-IEC 61672-1 yesisindo sekilasi 2 C.
• Ukukala isikhathi (ukutholwa kwe-RMS): Ngokushesha, ngokusho kwe-IEC 61672-1 ikilasi 2. Kancane, ngokusho kwe-IEC 61672-1 ikilasi 2. Impulse, ngokusho kwe-IEC 61672-1 ikilasi lesi-2.

Imibandela yesethenjwa:

• Uhlobo lwenkambu ye-acoustic: Inkambu yamahhala
• Izinga lokucindezela komsindo oyisithenjwa: 94.0dB (okuhlobene no-20Pa)
• Ibanga lereferensi lezinga: 60 kuya ku-120dB
• Imvamisa yereferensi: 1000Hz
• Izinga lokushisa eliyisethenjwa: 73.4oF (23oC)
• Umswakama ohlobene nereferensi: 50%RH
• Ingcindezi emile eyisithenjwa: 101.325 kPa
• Isiqondiso sesigameko sereferensi: I-Perpendicular to front of microphone diaphragm.

Ukulinganisa:

• I-Acoustical calibrator (Extech 407744 noma okulinganayo)
• Imvamisa yokuhlola ukulinganiswa ngu-1000Hz.
• Izinga lokulinganiswa kwenkundla yamahhala: 94.1dB
• Ileveli yokulinganisa yokulinganisa yenkambu yokusabalalisa: 94.0dB
• Imvamisa yokuhlolwa kwe-acoustic: 8000Hz
• Isikhathi sokufudumala: ≤ 2min
• Sampisikhawu se-ling: Inkomba yegrafu yebha → 125 ms cishe. Inkomba yezinombolo → isekhondi elingu-1 cishe.
• Umthamo werekhodi ledatha: Idatha ingagcinwa kumemori.
• Ubukhulu. Ukufundwa okungu-32000 kungagcinwa
• Ubukhulu. 255 amabhlogo

Isibonisi se-LCD
Bonisa izikrini:
Izinkomba ezi-4 zezinombolo zezinga lomsindo, ukusuka ku-30.0 ukuya ku-130.0dB nokucaca okungu-0.1dB. Inkomba ye-Bar-graph yezinga lomsindo lamanje elinokulungiswa kwe-1dB. Isikhombi sebanga lomsindo: 30–90dB, 40–100dB, 50–110dB, 60–120dB noma 70–130dB kububanzi obuhlanu. Isibonisi sesikhathi; unyaka - inyanga - usuku nehora: umzuzu: okwesibili.

• Bonisa izinga lokubuyekeza: isekhondi elingu-1
• Inkomba yokuqalisa kwesiboniso: Kuncike esimweni semitha ukuthi igcine nini ukucishwa.

Izinkomba zesixwayiso:

• Izinkomba ezingaphandle kwebanga:
• OKUPHEZULU kuboniswe emkhawulweni ophezulu wobubanzi
• UNDER iboniswa emkhawulweni ophansi wobubanzi

Imiphumela
Ukuphuma kwe-AC (kusetshenziswa isikali esikhethiwe sefrikhwensi)

• Umphumela voltage: 2Vrms (ngesilinganiso esigcwele sebanga)
• Ukuphazamiseka kokuphumayo: 5kΩ
• I-impedance yokulayisha: ≥ 1MΩ

Ukukhishwa kwe-DC

• Umphumela voltage: 10mV/dB
• Ukuphazamiseka kokuphumayo: 5kΩ
• I-impedance yokulayisha: ≥ 1MΩ
• Isixhumi se-I/O: Ukulawula imitha yezinga lomsindo ukusuka, nokuphuma kwedatha kuye, ku-PC (USB)
• Okukhipha i-alamu: 5Vdc, ejwayelekile

Izidingo zamandla
4 x 1.5V IEC R6P (usayizi “AA”) amabhethri e-manganese esindayo esikhulu noma okulinganayo

• Impilo yebhethri: Cishe. Amahora angu-24
• Umthombo wamandla wangaphandle: DC voltage kusuka ku-5V kuya ku-6V; Isilinganiso samanje: Cishe. 20mA @ 6V

Izimo ze-ambient:

• Izimo zokusebenza: 14 kuya ku-122oF (-10oC kuya ku-+50oC), 30% kuya ku-90% RH engafinyeleli
• Izimo zesitoreji: 14 kuya ku-140oF (-10oC kuya +60oC) <70%RH engafinyeleli
• Umthelela wezinga lokushisa: <0.5dB ukusuka ku-14 kuye ku-122oF (-10 ukuya ku-+50oC),
• Umthelela womswakamo: < 0.5dB (ku-30%RH kuya ku-90%RH ku-104 oF [40oC], 1000Hz)
• Umthelela wokudlidliza: Ukudlidliza okungu-40 Hz 1m/s akukhiqizi umphumela obonakalayo.
• Umthelela we-magnetic field: Awukho umphumela obonakalayo.

Ukuthobela Amazinga: ibonisa ukuthobela Iziqondiso ezisebenzayo ze-European Union.

Ukukhishwa kwe-EMC: I-IEC 61000-6-3, Izinga lokukhishwa elijwayelekile lezindawo zokuhlala, ezentengiselwano nezilula zezimboni. Akukho ukukhishwa okubalulekile okuvela ensimbini. I-IEC 61672-1, Iqembu le-Instrumentation elijwayelekile lokuhlukaniswa X kanye imitha yezinga lomsindo wesigaba sokusebenza 2.

Ukuzivikela kwe-EMC: I-IEC 61000-6-2, I-Generic standard-Immunity yezindawo zezimboni. Akukho ukwehla ekusebenzeni uma kungaphansi kwe-10V/m engashintshiwe.

• Ubukhulu: 10.4 (L) x 2.8 (W) x 1.4(H)” (265 x 72 x 36 mm)
• Isisindo 13.4 0z. Cishe. (kuhlanganise nebhethri): (380g)

Iwaranti yeminyaka emibili

I-Teledyne FLIR iqinisekisa ukuthi leli thuluzi lomkhiqizo we-Extech lingabi nasici ezingxenyeni nasekusebenzeni iminyaka emibili kusukela ngedethi yokuthunyelwa (isiqinisekiso esikhawulelwe sezinyanga eziyisithupha sisebenza kuzinzwa namakhebuli). Kuya view umbhalo wewaranti ogcwele sicela uvakashele:
http://www.extech.com/support/warranties.

Izinsizakalo Zokulinganisa Nokulungisa 

I-Teledyne FLIR inikezela ngezinsizakalo zokulinganisa nokulungisa imikhiqizo yohlobo lwe-Extech esiyithengisayo. Sinikeza ukulinganiswa okulandelekayo kwe-NIST emikhiqizweni yethu eminingi. Thintana nathi ukuze uthole ulwazi mayelana nokulinganiswa nokutholakala kokulungisa, bheka imininingwane yokuxhumana engezansi. Izilinganiso zonyaka kufanele zenziwe ukuze kuqinisekiswe ukusebenza kwamamitha nokunemba. Ukucaciswa komkhiqizo kungashintsha ngaphandle kwesaziso. Sicela uvakashele wethu webisizindalwazi somkhiqizo osesikhathini samanje:
www.extech.com.

Xhumana Nokwesekwa Kwamakhasimende

• Uhlu Lwezingcingo Zokusekela Amakhasimende: https://support.flir.com/contact
• Ukulinganisa, Ukulungisa, Nokubuyisela: ukulungisa@extech.com
• Ukusekela kwezobuchwepheshe: https://support.flir.com

Copyright © 2022 Teledyne FLIR Commercial Systems, Inc. Wonke amalungelo agodliwe kuhlanganise nelungelo lokukhiqiza kabusha ngokuphelele noma ingxenye nganoma yiluphi uhlobo. www.extech.com Lo mbhalo awunalo ulwazi olulawulwa ukuthekelisa

Amadokhumenti / Izinsiza

I-EXTECH 407780A Ihlanganisa Imitha Yezinga Lomsindo kanye neDatalogger [pdf] Imaniwali yosebenzisayo I-407780A Ihlanganisa Imitha Yezinga Lomsindo kanye Ne-Datalogger, 407780A, Ukuhlanganisa Imitha Yezinga Lomsindo kanye neDathalogger, Imitha Yezinga Lomsindo kanye neDathalogger, I-Level Meter kanye ne-Datalogger, Imitha kanye neDatalogger, I-Datalogger, Imitha

Izithenjwa

• Imaniwali yosebenzisayo