7710 Multiplexer Module
IziyalezoImodeli 7710 Multiplexer Module
Imiyalo yokusetshenziswa ne-DAQ6510
Izinsimbi zikaKeithley
Umgwaqo we-28775 Aurora
Cleveland, Ohio 44139
1-800-833-9200
tek.com/keithley

Isingeniso

I-7710 20-channel Solid-state Differential Multiplexer enemojuli ye-Automatic Cold Junction Compensation (CJC) inikeza iziteshi ezingu-20 zamashaneli angu-2-pole noma angu-10 okufakwayo okuyizigxobo ezi-4 ezingahlelwa njengamabhange amabili azimele eziphindaphindayo. Ama-relay ayisimo esiqinile, esinikeza impilo ende nokugcinwa okuphansi. Ilungele izinhlelo zokusebenza zesikhathi eside zokuloga idatha kanye nokufuna izinhlelo zokusebenza ezinesivinini esikhulu.
Umfanekiso 1: 7710 20-Channel Differential Multiplexer Module Into ethunyelwe ingahluka kumodeli eboniswe lapha.
I-7710 ihlanganisa izici ezilandelayo:

• Isebenza ngokushesha, impilo ende ye-solid-state relay
• I-DC kanye ne-AC voltagisilinganiso
• Izilinganiso zokumelana nezintambo ezimbili noma ezine (amabhangqa ngokuzenzakalela ama-relay okulinganisa izintambo ezine)
• Izinhlelo zokusebenza zokushisa (RTD, thermistor, thermocouple)
• Ireferensi eyakhelwe ngaphakathi yendawo ebandayo yezinga lokushisa le-thermocouple
• Uxhumano lwetheminali yesikulufa

QAPHELA
I-7710 ingasetshenziswa ne-DAQ6510 Data Acquisition kanye ne-Multimeter System.
Uma usebenzisa le moduli yokushintsha ne-2700, 2701, noma 2750, sicela ubone i-Model 7710 Multiplexer
Umhlahlandlela Womsebenzisi Wekhadi, Keithley Instruments PA-847.

Izixhumanisi

Amatheminali okukulufela kumojuli yokushintsha ahlinzekelwe ukuze kuxhunywe idivayisi evivinywayo (DUT) kanye nokujikeleza kwangaphandle. I-7710 isebenzisa amabhulokhi wetheminali anqamula ngokushesha. Ungakwazi ukuxhuma kwi-terminal block uma inqanyulwa kumojula. Lawa mabhulokhi etheminali alinganiselwe ama-25 axhumayo futhi anqamule.
ISEXWAYISO
Izinqubo zokuxhuma nokufaka izintambo kulo mbhalo zenzelwe ukusetshenziswa izisebenzi eziqeqeshiwe kuphela, njengoba kuchazwe izinhlobo zabasebenzisi bomkhiqizo ezinyathelweni zokuphepha (ekhasini 25). Ungazenzi lezi zinqubo ngaphandle uma ufanelekile ukwenza kanjalo. Ukwehluleka ukubona nokubheka izinyathelo zokuphepha ezijwayelekile kungaholela ekulimaleni komuntu siqu noma ekufeni.
Ulwazi olulandelayo luchaza indlela yokuxhumana nemojuli yokushintsha futhi ichaze ukuqokwa kwesiteshi. Ilogi yoxhumano inikeziwe ongayisebenzisa ukuze urekhode ukuxhumana kwakho.
Inqubo yokufaka izintambo
Sebenzisa le nqubo elandelayo ukwenza uxhumano kumojula 7710. Yenza konke ukuxhumana usebenzisa usayizi wezintambo olungile (ofika ku-20 AWG). Ukuze uthole ukusebenza okuphezulu kwesistimu, zonke izintambo zokulinganisa kufanele zibe ngaphansi kwamamitha amathathu. Engeza ukufakwa okungeziwe okuzungeze ihhanisi ngevolumutagingaphezulu kwama-42 VPEAK.
ISEXWAYISO
Zonke izintambo kufanele zikalwe ngevolumu ephezulutage ohlelweni. Okwesiboneloample, uma i-1000 V isetshenziswa kumatheminali angaphambili ethuluzi, izintambo zemojuli yokushintsha kufanele zilinganiselwe ku-1000 V. Ukwehluleka ukubona nokubheka izinyathelo zokuphepha ezijwayelekile kungaholela ekulimaleni komuntu siqu noma ekufeni.
Izisetshenziswa ezidingekayo:

• I-screwdriver ephathekayo
• Iphinifa lenaliti yekhala
• Izibopho zekhebula

Ukuxhuma imojuli ye-7710:

1. Qiniseka ukuthi wonke amandla akhishiwe kumojula ye-7710.
2. Usebenzisa i-screwdriver, vula isikulufu sokufinyelela ukuze uvule futhi uvule ikhava, njengoba kuboniswe esithombeni esilandelayo.
   Umfanekiso 2: Ukufinyelela itheminali yesikulufu
3. Uma kudingeka, susa ibhulokhi yetheminali efanele yokunqamula ngokushesha kumojula.
   a. Faka i-screwdriver enekhanda eliyisicaba ngaphansi kwesixhumi bese uphushela phezulu ukuze usikhulule, njengoba kuboniswe esithombeni esilandelayo.
   b. Sebenzisa izidladla zenaliti ukuze udonse isixhumi siqonde phezulu.
   ISEXWAYISO
   Unganyakazisi isixhumi ngapha nangapha. Kungabangela ukulimala kwezikhonkwane.
   Umfanekiso 3: Inqubo efanele yokususa amabhlogo wetheminali   
4. Usebenzisa i-screwdriver encane eneblade, khulula izikulufu zetheminali bese ufaka izintambo njengoba kudingeka. Umfanekiso olandelayo ubonisa ukuxhumana, okuhlanganisa ukuxhumana nomthombo nomuzwa.
   Umfanekiso 4: Khipha ukuqokwa kwesiteshi setheminali
5. Xhuma ibhulokhi yetheminali kumojuli.
6. Intambo yomzila eduze kwendlela yocingo futhi ivikeleke ngezibopho zekhebula njengoba kukhonjisiwe. Umfanekiso olandelayo ubonisa ukuxhumana eziteshini 1 no-2.
   Umfanekiso 5: Ukugqoka ngocingo
7. Gcwalisa ikhophi yelogi yoxhumano. Bheka ilogi yokuxhumana (ekhasini 8).
8. Vala ikhava yokufinyelela yesikulufu.
9. Usebenzisa i-screwdriver, cindezela isikulufu sokufinyelela bese uvula ukuze ukhiye ikhava.

Ukucushwa kwemojuli

Isibalo esilandelayo sibonisa isikimu esenziwe lula semojula ye-7710. Njengoba kukhonjisiwe, i-7710 ineziteshi ezihlanganiswe amabhange amabili eziteshi eziyi-10 (inani leziteshi ezingama-20). Ukuhlukaniswa kwendiza engemuva kunikezwa ibhange ngalinye. Ibhange ngalinye lihlanganisa amaphuzu ahlukene ereferensi abandayo. Ibhange lokuqala liqukethe amashaneli 1 kuya ku-10, kanti ibhange lesibili linamashaneli angu-11 kuya kwangu-20. Ishaneli ngayinye ye-20-channel multiplexer module ixhunywe ngezintambo ezihlukene ze-HI/LO ezinikeza okokufaka okungazodwa ngokuphelele.
Ukuxhumana nemisebenzi ye-DMM kunikezwa ngesixhumi semojula yendiza yangemuva.
Amashaneli 21, 22, kanye no-23 acushwa ngokuzenzakalela yithuluzi lapho kusetshenziswa ukusebenza kwesiteshi sohlelo.
Uma usebenzisa ukusebenza kwesiteshi sesistimu yezilinganiso zezintambo ezingu-4 (okuhlanganisa i-4-wire ohms, izinga lokushisa le-RTD, Isilinganiso, kanye Nesilinganiso Sesiteshi), iziteshi zibhangqwa kanje:

I-CH1 kanye ne-CH11	I-CH6 kanye ne-CH16
I-CH2 kanye ne-CH12	I-CH7 kanye ne-CH17
I-CH3 kanye ne-CH13	I-CH8 kanye ne-CH18
I-CH4 kanye ne-CH14	I-CH9 kanye ne-CH19
I-CH5 kanye ne-CH15	I-CH10 kanye ne-CH20

QAPHELA
Iziteshi 21 kuya ku-23 kulolu hlelo zibhekisela emazingeni asetshenziselwa ukulawula hhayi amashaneli atholakalayo. Ukuze uthole ulwazi olwengeziwe, bheka imanuwali yereferensi yezinsimbi.
Umfanekiso 6:7710 isikimu esenziwe lula

Izixhumanisi ezijwayelekile

I-ex elandelayoampI-les ibonisa ukuxhumana kwezintambo okujwayelekile kwezinhlobo ezilandelayo zezilinganiso:

• Thermocouple
• Ukumelana nezintambo ezimbili kanye ne-thermistor
• Ukumelana nezintambo ezine kanye ne-RTD
• I-DC noma i-AC voltage

Ilogi yokuxhumana

Ungasebenzisa ithebula elilandelayo ukuze urekhode ulwazi lwakho lokuxhumana.
Idatha ye-7710

Isiteshi		Umbala	Incazelo
Umthombo Wekhadi	H
	L
Umuzwa wekhadi	H
	L
I-CH1	H
	L
I-CH2	H
	L
I-CH3	H
	L
I-CH4	H
	L
I-CH5	H
	L
I-CH6	H
	L
I-CH7	H
	L
I-CH8	H
	L
I-CH9	H
	L
I-CH10	H
	L
I-CH11	H
	L
I-CH12	H
	L
I-CH13	H
	L
I-CH14	H
	L
I-CH15	H
	L
I-CH16	H
	L
I-CH17	H
	L
I-CH18	H
	L
I-CH19	H
	L
I-CH2O	H
	L

Ukufakwa

Ngaphambi kokusebenzisa ithuluzi elinemojula yokushintsha, qinisekisa ukuthi imojuli yokushintsha ifakwe kahle futhi nezikulufu ezikhwezwayo ziboshwe ngokuqinile. Uma izikulufu zokukhweza zingaxhumekile kahle, kungase kube khona ingozi yokushaqeka kagesi.
Uma ufaka amamojula amabili okushintsha, kulula ukufaka imojula yokushintsha ibe slot 2 kuqala, bese ufaka imojula yokushintsha yesibili ibe slot 1.
QAPHELA
Uma une-Keithley Instruments Model 2700, 2701, noma insimbi engu-2750, ungasebenzisa imojuli yakho yokushintsha ekhona ku-DAQ6510. Landela imiyalelo ekumadokhumenti akho okuqala emishini ukuze ususe imojuli ethuluzini, bese usebenzisa imiyalo elandelayo ukuyifaka ku-DAQ6510. Awudingi ukususa izintambo kumojula.
QAPHELA
Kubasebenzisi abangenalwazi, kunconywa ukuthi ungaxhumi idivayisi ngaphansi kokuhlolwa (i-DUT) kanye nokujikeleza kwangaphandle kumojula yokushintsha. Lokhu kukuvumela ukuthi usebenzise imisebenzi eseduze nevulekile ngaphandle kwezingozi ezihlobene namasekhethi okuhlola abukhoma. Ungakwazi futhi ukusetha ama-pseudocards ukuze uzame ukushintsha. Bheka “Ama-Pseudocards” ku-Model DAQ6510 Ukutholwa Kwedatha kanye ne-Multimeter System Reference Manual ukuze uthole ulwazi lokusetha ama-pseudocards.
ISEXWAYISO
Ukuze uvimbele ukushaqeka kukagesi okungase kubangele ukulimala noma ukufa, ungalokothi uphathe imojuli yokushintsha enamandla asetshenziswa kuyo. Ngaphambi kokufaka noma ukukhipha imojuli yokushintsha, qiniseka ukuthi insimbi ivaliwe futhi inqanyuliwe emandleni olayini. Uma imojuli yokushintsha ixhunywe ku-DUT, qiniseka ukuthi amandla asusiwe kuwo wonke amasekhethi angaphandle.
ISEXWAYISO
Amakhava ezikhala kufanele afakwe ezindaweni ezingasetshenzisiwe ukuze kunqandwe ukuthintana komuntu siqu ne-high-voltage izifunda. Ukwehluleka ukubona nokubheka izinyathelo zokuphepha ezijwayelekile kungaholela ekulimaleni komuntu siqu noma ekufeni ngenxa yokushaqeka kukagesi.
ISEXWAYISO
Ngaphambi kokufaka noma ukukhipha imojuli yokushintsha, qiniseka ukuthi amandla e-DAQ6510 avaliwe futhi anqanyuliwe emandleni olayini. Ukwehluleka ukuthobela imithetho kungaholela ekusebenzeni okungalungile kanye nokulahlekelwa idatha kumemori.
Imishini edingekayo:

• I-screwdriver ye-flat-blade emaphakathi
• I-screwdriver emaphakathi

Ukufaka imojula yokushintsha ku-DAQ6510:

1. Vala i-DAQ6510.
2. Nqamula intambo yamandla emthonjeni wamandla.
3. Nqamula intambo yamandla kanye nanoma yiziphi ezinye izintambo ezixhunywe kuphaneli engemuva.
4. Misa i-DAQ6510 ukuze ubhekane nephaneli elingemuva.
5. Sebenzisa i-screwdriver ukuze ususe izikulufu zekhava ye-slot kanye ne-cover plate. Gcina ipuleti nezikulufu ukuze uzisebenzise esikhathini esizayo.
6. Ngekhava engaphezulu yemojuli yokushintsha ibheke phezulu, slayida imojula yokushintsha ku-slot.
7. Cindezela imojuli yokushintsha ngokuqinile ukuze uqiniseke ukuthi isixhumi semojuli yokushintsha sixhunywe kusixhumi se-DAQ6510.
8. Sebenzisa i-screwdriver ukuze uqinise izikulufu ezimbili ezikhwezwayo ukuze uvikele imojuli yokushintsha kuzimele omkhulu. Ungaqinisi kakhulu.
9. Xhuma kabusha intambo yamandla kanye nanoma yiziphi ezinye izintambo.

Susa imojuli yokushintsha

QAPHELA
Ngaphambi kokuthi ukhiphe imojuli yokushintsha noma uqale noma yikuphi ukuhlola, qiniseka ukuthi konke ukudluliselwa kuvuliwe. Njengoba okunye ukudluliselwa kungase kuvalelwe kuvalwe, kufanele uvule wonke ama-relay ngaphambi kokukhipha imojula yokushintsha ukuze wenze uxhumano. Ukwengeza, uma ulahla imojula yakho yokushintsha, kungenzeka ukuthi okunye ukudluliselwa kuvaliwe.
Ukuze uvule zonke iziteshi ezidluliswayo, yiya esikrinini sokuswayipha CHANNEL. Khetha Vula Konke.
ISEXWAYISO
Ukuze uvimbele ukushaqeka kukagesi okungase kubangele ukulimala noma ukufa, ungalokothi uphathe imojuli yokushintsha enamandla asetshenziswa kuyo. Ngaphambi kokufaka noma ukukhipha imojuli yokushintsha, qiniseka ukuthi i-DAQ6510 ivaliwe futhi inqanyuliwe emandleni olayini. Uma imojuli yokushintsha ixhunywe ku-DUT, qiniseka ukuthi amandla asusiwe kuwo wonke amasekhethi angaphandle.
ISEXWAYISO
Uma i-slot yekhadi ingasetshenziswa, kufanele ufake amakhava e-slot ukuvimbela ukuthintana komuntu siqu ne-high voltage izifunda. Ukwehluleka ukufaka amakhava e-slot kungase kuphumele ekuchayekeni komuntu siqu kuvolthi eyingozitages, okungadala ukulimala komuntu siqu noma ukufa uma kuthintwa.
ISEXWAYISO
Ngaphambi kokufaka noma ukukhipha imojuli yokushintsha, qiniseka ukuthi amandla e-DAQ6510 avaliwe futhi anqanyuliwe emandleni olayini. Ukwehluleka ukuthobela imithetho kungaholela ekusebenzeni okungalungile kanye nokulahlekelwa idatha kumemori.
Imishini edingekayo:

• I-screwdriver ye-flat-blade emaphakathi
• I-screwdriver emaphakathi

Ukususa imojuli yokushintsha ku-DAQ6510:

1. Vala i-DAQ6510.
2. Nqamula intambo yamandla emthonjeni wamandla.
3. Nqamula intambo yamandla kanye nanoma yiziphi ezinye izintambo ezixhunywe kuphaneli engemuva.
4. Misa i-DAQ6510 ukuze ubhekane nephaneli elingemuva.
5. Sebenzisa i-screwdriver ukuze ukhulule izikulufu ezikhwezayo ezivikela imojuli yokushintsha entweni.
6. Susa ngokucophelela imojuli yokushintsha.
7. Faka i-slot plate noma enye imojuli yokushintsha endaweni engenalutho.
8. Xhuma kabusha intambo yamandla kanye nanoma yiziphi ezinye izintambo.

Imiyalelo yokusebenza

ISEXWAYISO
Ngaphambi kokufaka noma ukukhipha imojuli ye-7710, qiniseka ukuthi amandla e-DAQ6510 avaliwe futhi anqanyuliwe emandleni olayini. Ukwehluleka ukuthobela imithetho kungaholela ekusebenzeni okungalungile kanye nokulahleka kwedatha evela kumemori engu-7710.
ISEXWAYISO
Ukuze uvimbele ukushisa ngokweqile noma ukulimala kokudluliswa kwemojuli yokushintsha engu-7710, ungalokothi weqe amazinga esiginali aphezulu alandelayo phakathi kwanoma yikuphi okokufaka okubili noma i-chassis: Noma isiphi isiteshi kunoma yisiphi isiteshi (1 kuya ku-20): 60 VDC noma 42 VRMS, 100 mA switched, 6 W, 4.2 VA esiphezulu.
Ungeqi imininingwane ephezulu ye-7710. Bheka imininingwane enikezwe kudatha yedatha. Ukwehluleka ukubona nokubheka izinyathelo zokuphepha ezijwayelekile kungaholela ekulimaleni komuntu siqu noma ekufeni.
ISEXWAYISO
Uma imojula ye-7710 ishuthekwa ku-DAQ6510, ixhunywa kokufakwayo okungaphambili nangemuva kanye namanye amamojula ohlelweni ngendiza yensimbi engemuva. Ukuvimbela ukulimala kwemojula ye-7710 kanye nokuvimbela ukudalwa kwengozi yokushaqeka, lonke uhlelo lokuhlola nakho konke okokufaka kwalo kufanele kwehliswe ku-60 VDC (42 VRMS). Ukwehluleka ukubona nokubheka izinyathelo zokuphepha ezijwayelekile kungaholela ekulimaleni komuntu siqu noma ekufeni. Bheka imibhalo yethuluzi ukuze uthole imiyalelo yokusebenza.
ISEXWAYISO
Le mojula yokushintsha ayisekeli izilinganiso zamanje. Uma insimbi ineswishi ye-TERMINALS esethelwe EMVA futhi usebenza nembobo equkethe le moduli yokushintsha, i-AC, DC, kanye ne-digitize imisebenzi yamanje ayitholakali. Ungakwazi ukukala okwamanje usebenzisa iphaneli yangaphambili noma usebenzise esinye isikhala esiqukethe imojuli yokushintsha esekela i-AC, DC, futhi wenze izilinganiso zamanje zibe yidijithali.
Uma usebenzisa imiyalo ekude ukuze uzame ukulinganisa okwamanje lapho ulungisa isiteshi, iphutha liyabuya.
Ukuskena okusheshayo usebenzisa imojuli ye-7710 ene-DAQ6510 mainframe
Uhlelo olulandelayo lwe-SCPI lubonisa kusetshenziswa imojuli ye-7710 kanye ne-DAQ6510 mainframe ukuze kufinyelelwe ukuskena ngokushesha. Isebenzisa isilawuli seWinSocket ukuxhumana ne-7710 mainframe.

DAQ6510 noma i-pseudocode	Umyalo	Incazelo
I-pseudocode	int scanCnt = 1000	Dala okuhlukile ukuze ubambe isibalo sokuskena
	int sampI-leCnt	Dala okuguquguqukayo ukuze ubambe u-s ogcweleampi-le count (inani eliphelele lokufunda)
	int chanCnt	Dala okuguquguqukayo ukuze ubambe isibalo sesiteshi
	int actualRdgs	Dala okuguquguqukayo ukuze ubambe isibalo sokufunda sangempela
	intambo rcvBuffer	Dala ibhafa yeyunithi yezinhlamvu ukuze ubambe ukufundwa okukhishiwe
	t em1. qala ()	Qala isibali sikhathi ukusiza ukuthwebula isikhathi esidlulile
I-DAQ6510	• I-RST	Beka insimbi esimweni esaziwayo
	IFOMU: IDATHA ASCII	Fometha idatha njengochungechunge lwe-ASCII
	UMGWAQO: SKENA: IKHANSI : SEKELA iskenaCnt	Faka isibalo sokuskena
	FUNC 'VOLT:DC' , (@101:120)	Setha umsebenzi ku-DCV
	I-VOLT:RANG 1, (@101:120)	Setha ububanzi obulungisiwe ku-1 V
	I-VOLT: AVER: STAT OFF, (@101:120)	Khubaza izibalo zangemuva
	I-DISP : I-VOLT: DIG 4, (@101:120)	Setha iphaneli engaphambili ukuze ubonise amadijithi angu-4 abalulekile
	I-VOLT :NPLC 0.0005, (@101:120)	Setha i-NPLC esheshayo ngangokunokwenzeka
	I-VOLT:LINE:SYNC VALIWE, (@101:120)	Vala ukuvumelanisa komugqa
	I-VOLT : AZER: STAT OFF, (@101:120)	Vala uziro ozenzakalelayo
	CALC2 :VOLT :LIM1 :STAT OFF, (@101:120)	Vala ukuhlolwa komkhawulo
	CALC2 :VOLT :LIM2 :STAT OFF, (@101:120)
	Umzila : SKENA : INT 0	Setha isikhawu sokucupha phakathi kokuskena siye kumasekhondi angu-0
	I-TRAC:CLE	Sula ibhafa yokufunda
	DISP:LIGH:STAT OFF	Vala isibonisi
	Umzila :SCAN :CRE (@101:120)	Setha uhlu lokuskena
	chanCnt = Umzila :SCAN:COUNT : ISINYATHELO?	Buza ngenani lesiteshi
I-pseudocode	sampleCnt = scanCnt • chanCnt	Bala inani lokufundwayo okwenziwe
I-DAQ6510	Init	Qala ukuskena
I-pseudocode	ngoba i = 1, i <sampI-leCnt	Setha i-af noma iluphu kusuka ku-1 kuye ku-sampLeCnt . kodwa shiya ukukhuphuka koku-1 ukuze uthole kamuva
	ukubambezela 500	Libazisa ngo-500 ms ukuze uvumele ukufundwa kuqongelele
I-DAQ6510	realRdgs = TRACE: NGEMPELA?	Buza ukufundwa kwangempela okuthathiwe
	rcvBuffer = “TRACe:DATA? i, realRdgs, “defbuf ferl”, FUNDA	Buza ukufundwa okutholakalayo kusuka ku-i kuya kunani le-realRdgs
I-pseudocode	I-WritingReadings (“C: \ myData . csv”, rcvBuffer)	Bhala okukhishiwe ku-a file. myData.csv. kukhompuyutha yendawo
	i = realRdgs + 1	I-Increment i ye-loop pass elandelayo
	ukuphela kwe-	Qeda i-f noma iluphu
	isibali sikhathi 1. Ima()	Misa isibali sikhathi
	timerl.stop – timerl.start	Bala isikhathi esidlulile
I-DAQ6510	DISP : LICH :STAT ON100	Vula isibonisi futhi

Uhlelo olulandelayo lwe-TSP lubonisa ukusebenzisa imojuli ye-7710 kanye ne-DAQ6510 mainframe ukuze kufinyelelwe ukuskena okusheshayo. Isebenzisa isilawuli seWinSocket ukuxhumana ne-7710 mainframe.
- Setha okuguquguqukayo okuzokhonjiswa ngesikhathi sokuskena.
scanCnt = 1000
sampleCnt = 0
chanCnt = 0
realRdgs = 0
rcvBuffer = ""
- Thola izikhathi zokuqalaamp ngokuqhathanisa kokuphela kokugijima.
local x = os.clock()
- Setha kabusha ithuluzi bese usula isigcinalwazi.
setha kabusha()
defbuffer1.clear()
- Setha ifomethi yebhafa yokufunda bese usungula isibalo sokuskena
format.data = format.ASCII
scan.scancount = scanCnt
— Lungiselela amashaneli okuskena ekhadi endaweni 1.
channel.setdmm(“101:120”, dmm.ATTR_MEAS_FUNCTION, dmm.FUNC_DC_VOLTAGE)
channel.setdmm(“101:120”, dmm.ATTR_MEAS_RANGE, 1)
channel.setdmm(“101:120”, dmm.ATTR_MEAS_RANGE_AUTO, dmm.OFF)
channel.setdmm(“101:120”, dmm.ATTR_MEAS_AUTO_ZERO, dmm.OFF)
channel.setdmm(“101:120”, dmm.ATTR_MEAS_DIGITS, dmm.DIGITS_4_5)
channel.setdmm(“101:120”, dmm.ATTR_MEAS_NPLC, 0.0005)
channel.setdmm(“101:120”, dmm.ATTR_MEAS_APERTURE, 8.33333e-06)
channel.setdmm(“101:120”, dmm.ATTR_MEAS_LINE_SYNC, dmm.OFF)
channel.setdmm(“101:120”, dmm.ATTR_MEAS_LIMIT_ENABLE_1, dmm.OFF)
channel.setdmm(“101:120”, dmm.ATTR_MEAS_LIMIT_ENABLE_2, dmm.OFF)
- Fiphalisa isibonisi.
display.lightstate = display.STATE_LCD_OFF
- Khiqiza ukuskena.
scan.dala(“101:120”)
scan.scaninterval = 0.0
chanCnt = scan.stepcount
— Bala inani elipheleleample count bese uyisebenzisela usayizi webhafa.
sampleCnt = scanCnt * chanCnt
defbuffer1.capacity = sampI-leCnt
— Qala ukuskena.
trigger.model.initiate()
- Iluphu ukuze uthwebule futhi uphrinte ukufundwa.
ngi = 1
ngenkathi ngi <= sampNgenze
ukubambezeleka (0.5)
myCnt = defbuffer1.n
— QAPHELA: Inganezelwa noma ithathelwe indawo ngokubhalela ku-USB
i-printbuffer(i, myCnt, defbuffer1.readings)
i = myCnt + 1
ukuphela
— Vula isibuko futhi.
display.lightstate = display.STATE_LCD_50
- Khipha isikhathi esidlulile.
phrinta(string.format(“Isikhathi Esidlulile: %2f\n”, os.clock() – x))

Ukucatshangelwa kokusebenza

Izilinganiso eziphansi-ohms
Ngokumelana nobubanzi obuvamile (>100 Ω), indlela yezintambo ezingu-2 (Ω2) ngokuvamile isetshenziselwa izilinganiso ze-ohms.
Kuma-ohm aphansi (≤100 Ω), ukumelana kwendlela yesignali ochungechungeni ne-DUT kungaba phezulu ngokwanele ukuthikameza kabi isilinganiso. Ngakho-ke, indlela ye-4-wire (Ω4) kufanele isetshenziselwe izilinganiso zama-ohms aphansi. Ingxoxo elandelayo ichaza ukulinganiselwa kwendlela ye-2-wire kanye ne-advantages yendlela yezintambo ezi-4.
Indlela yezintambo ezimbili
Izilinganiso zokumelana nobubanzi obujwayelekile (>100 Ω) ngokuvamile zenziwa kusetshenziswa indlela yezintambo ezi-2 (umsebenzi we-Ω2). Ukuhlolwa kwamanje kuphoqelelwa ngemikhondo yokuhlola kanye nokukalwa kokumelana (RDUT). Imitha ibe isikala ivolumutage ngaphesheya kwevelu yokumelana ngokufanele.
Inkinga enkulu ngendlela ye-2-wire, njengoba isetshenziswa ezilinganisweni zokumelana okuphansi ukumelana nokuhlolwa kokuhola (RLEAD) kanye nokumelana nesiteshi (RCH). Isamba salokhu kumelana ngokuvamile sisebangeni lika-1.5 kuya ku-2.5 Ω.
Ngakho-ke, kunzima ukuthola izilinganiso ezinembile ze-2-wire ohms ngaphansi kuka-100 Ω.
Ngenxa yalo mkhawulo, indlela yezintambo ezi-4 kufanele isetshenziselwe izilinganiso zokumelana ≤100 Ω.
Indlela yezintambo ezine
Indlela yokuxhumana ye-4-wire (Kelvin) esebenzisa umsebenzi we-Ω4 ngokuvamile ikhethwa ezilinganisweni ze-ohms ephansi.
Indlela yezintambo ezi-4 ikhansela imiphumela yesiteshi nokuphikiswa komthofu wokuhlola.
Ngalokhu kucushwa, i-test current (ITEST) iphoqelelwa ngokumelana nokuhlola (RDUT) ngokusebenzisa isethi eyodwa yokuhlola okuholela (RLEAD2 ne-RLEAD3), kuyilapho i-vol.tagI-e (VM) kuyo yonke idivayisi engaphansi kokuhlolwa (DUT) ikalwa ngesethi yesibili yomkhondo (i-RLEAD1 ne-RLEAD4) ebizwa ngokuthi i-sensor lead.
Ngalokhu kumisa, ukumelana kwe-DUT kubalwa kanje:
RDUT = VM / ITEST
Kuphi: Mina ngingumthombo wokuhlola wamanje futhi u-V uyivolumu elinganisiwetage.
Njengoba kuboniswe emfanekisweni othi Ubukhulu bokumelana nokuhola kokuhlolwa (ekhasini 17), ivolumu elinganisiwetage (VM) umehluko phakathi kwe-VSHI ne-VSLO. Izibalo ezingezansi kwesibalo zibonisa ukuthi ukumelana nomthofu wokuhlola nokumelana nesiteshi kukhanselwa kanjani ngaphandle kwenqubo yokulinganisa.
Ubukhulu bokumelana nomthofu wokuhlola
Ubukhulu bokumelana nokuhlolwa kokuhola (RLEAD), kububanzi obuqondile bokumelana nezintambo ezi-4:

• 5 Ω ukuhola ngakunye kwe-1 Ω
• U-10% webanga ngokuhola ngakunye kuka-10 Ω, 100 Ω, 1 kΩ, no-10 kΩ ububanzi
• 1 kΩ ukuhola ngakunye ngo-100 kΩ, 1 MΩ, 10 MΩ, no-100 MΩ ububanzi

Okucatshangwayo:

• Cishe akukho okugeleza kwamanje kusekethe yenzwa ephezulu ngenxa ye-impedance ephezulu ye-voltmeter (VM). Ngakho-ke, i-voltagI-e yehla kuChannel 11 futhi umkhondo wokuhlola 1 no-4 awunaki futhi ungashaywa indiva.
• IVoltagI-e yehla ku-Channel 1 Hi (RCH1Hi) kanye ne-test lead 2 (RLEAD2) ayilinganiswa nge-voltmeter (VM).

RDUT = VM/ITEST
Kuphi:

• I-VM ingumthamotage kukalwa ngethuluzi.
• I-ITEST iyisisetshenziswa esiqhubekayo esitholakala e-DUT.
• VM = VSHI − VSLO
• I-VSHI = ITEST × (RDUT + RLEAD3 + RCH1Lo)
• I-VSLO = ITEST × (RLEAD3 + RCH1Lo)
• VSHI − VSLO = ITEST × [(RDUT + RLEAD3 + RCH1Lo) − (RLEAD3 + RCH1Lo)]
• = ITEST × RDUT
• = VM

Voltage izilinganiso
Ukumelana nomzila kungase kuthinte kabi izilinganiso ze-ohms ephansi (bona izilinganiso ze-Low-ohms (ekhasini 16) ukuze uthole ulwazi olwengeziwe). Ukumelana kwendlela yochungechunge kungabangela izinkinga zokulayisha ku-DC voltage izilinganiso ku-100 V, 10 V, no-10 mV ububanzi uma isihlukanisi sokufaka esingu-10 MΩ sinikwe amandla. Ukumelana kwendlela yesiginali ephezulu nakho kungathinta kabi i-AC voltage izilinganiso ku-100 V ububanzi ngaphezu kuka-1 kHz.
Ukulahlekelwa kokufaka
Ukulahlekelwa kokufaka amandla esignali ye-AC alahlekile phakathi kokokufaka nokuphumayo. Ngokuvamile, njengoba imvamisa ikhula, ukulahlekelwa kokufaka kuyanda.
Kumojula ye-7710, ukulahlekelwa kokufaka kucaciswe kumthombo wesignali we-50 Ω AC ohanjiswe kumojuli kuya kumthwalo ongu-50 Ω. Ukulahleka kwamandla esignali kwenzeka njengoba isignali ihanjiswa ezindleleni zesignali zemojuli ukuya ekulayisheni. Ukulahleka kokufakwa kuvezwa njengobukhulu be-dB kumafrikhwensi acacisiwe. Imininingwane yokulahleka kokufakwa inikezwe eshidini ledatha.
Njengesiboneloample, thatha izichasiselo ezilandelayo zokulahlekelwa kokufaka:
<1 dB @ 500 kHz 1 dB ukulahlekelwa kokufaka cishe u-20% wokulahlekelwa amandla esignali.
<3 dB @ 2 MHz 3 dB ukulahlekelwa kokufaka cishe u-50% wokulahlekelwa amandla esignali.
Njengoba imvamisa yesignali ikhula, ukulahleka kwamandla kuyanda.
QAPHELA
Amanani okulahlekelwa okufakwayo asetshenziswe ku-ex engenhlaampi-le ingase ingabi izicaciso zangempela zokulahlekelwa kokufaka ze-7710. Imininingwane yangempela yokulahleka kokufakwa inikezwe kudatha yedatha.
I-Crosstalk
Isignali ye-AC ingafakwa ezindleleni zesiteshi eziseduze kumojula ye-7710. Ngokuvamile, i-crosstalk iyanda njengoba imvamisa ikhula.
Kumojula ye-7710, i-crosstalk icaciswe kusignali ye-AC ehanjiswa ngemojuli ukuya kumthwalo ongu-50 Ω. I-Crosstalk ivezwa njengobukhulu be-dB ngemvamisa ethile. Imininingwane ye-crosstalk inikezwe kudatha yedatha.
Njengesiboneloample, thatha imininingwane elandelayo ye-crosstalk:
I-<-40 dB @ 500 kHz -40 dB ibonisa ukuthi ukuphambana eziteshini eziseduze kungu-0.01% wesiginali ye-AC.
Njengoba imvamisa yesignali ikhula, i-crosstalk iyanda.
QAPHELA
Amanani e-crosstalk asetshenziswe ku-ex engenhlaampI-le kungenzeka kungabi ukucaciswa kwangempela kwe-crosstalk kwe-7710. Imininingwane yangempela ye-crosstalk inikezwe kudatha yedatha.
Izilinganiso zokushisa zikasinki wokushisa
Ukulinganisa izinga lokushisa likasinki wokushisa kuwukuhlola okuvamile kwesistimu enekhono lokulinganisa izinga lokushisa. Nokho, imojula ye-7710 ayikwazi ukusetshenziswa uma usinki wokushisa untanta ngevolthi eyingozitagizinga le-e (>60 V). IsibampIsivivinyo esinjalo siboniswe ngezansi.
Emfanekisweni olandelayo, usinki wokushisa untanta ku-120 V, okuyi-voltage yomugqatage ukufakwa kusilawuli +5V.
Inhloso iwukusebenzisa isiteshi 1 ukukala izinga lokushisa likasinki wokushisa, futhi usebenzise isiteshi 2 ukuze ulinganise ukuphuma kwe-+5 V yesilawuli. Ukuze kudluliswe ukushisa okuphezulu, i-thermocouple (TC) ibekwa lapho ithintana khona nosinki wokushisa. Lokhu kuxhuma ngokungaqondile amandla antantayo angu-120 V kumojula engu-7710. Umphumela uba ngu-115 V phakathi kwesiteshi 1 nesiteshi 2 HI, kanye no-120 V phakathi kwesiteshi 1 ne-chassis. Lawa mazinga adlula umkhawulo ongu-60 V wemojula, adala ingozi yokushaqeka futhi ngokunokwenzeka abangele umonakalo kumojuli.
ISEXWAYISO
Isivivinyo esisesithombeni esilandelayo sibonisa ukuthi ivolumu eyingozi kangakananitage ingasetshenziswa ngokungenhloso kumojula ye-7710. Kunoma yikuphi ukuhlolwa lapho elintantayo voltages >60 V akhona, kufanele uqaphele ukuthi ungasebenzisi ivolumu entantayotage kumojula. Ukwehluleka ukubona nokubheka izinyathelo zokuphepha ezijwayelekile kungaholela ekulimaleni komuntu siqu noma ekufeni.
ISEXWAYISO
Ungasebenzisi imojula ye-7710 ukwenza lolu hlobo lokuhlola. Yeqa umkhawulo ongu-60 V idala ingozi yokushaqeka futhi ingabangela umonakalo kumojuli. Umthamo oweqiletages:
IVoltage umehluko phakathi kwe-Ch 1 ne-Ch 2 HI yi-115 V.
IVoltage umehluko phakathi kwe-Ch 1 ne-Ch 2 LO (chassis) ngu-120 V.

Izexwayiso zokuphatha imojuli
Ukudluliselwa kwesimo esiqinile okusetshenziswe kumojula ye-7710 kungamadivayisi azwelayo amile. Ngakho-ke, zingalinyazwa yi-electrostatic discharge (ESD).
ISEXWAYISO
Ukuze uvimbele ukulimala okuvela ku-ESD, phatha kuphela imojuli ngamaphethelo ekhadi. Ungathinti amatheminali okuxhuma indiza yangemuva. Uma usebenza ngamabhulokhi anqamula ngokushesha, ungathinti noma yikuphi ukulandela umkhondo webhodi lesifunda noma ezinye izingxenye. Uma usebenza endaweni ene-high-static, sebenzisa ibhande lesihlakala eliphansi lapho ufaka izintambo kumojuli.
Ukuthinta umkhondo webhodi lesifunda kungase kuwungcolise ngamafutha omzimba angehlisa ukumelana nokuhlukaniswa phakathi kwemizila yesifunda, kuthinte kabi izilinganiso. Kungumkhuba omuhle ukuphatha ibhodi lesekhethi kuphela ngemiphetho yalo.
Izinyathelo zokuphepha zokudlulisa isimo
Ukuze uvimbele ukulimala kwemojula, ungadluli ukucaciswa kwezinga lesiginali eliphezulu lemojuli. Imithwalo esebenzayo idinga umthamotage clampimithwalo ye-inductive kanye nomkhawulo wamanje wokukhuphuka kwemithwalo ye-capacitive.
Amadivayisi amanje akhawulelayo angaba izinqamuleli noma ama-fuse asethwa kabusha. ExampIzingxenye zamafuse ezisethezeka kabusha zingama-polyfuse kanye nezifudumezi zokushisa eziphozithivu (PTC). Voltage clampAmadivayisi angaba yi-Zener diode, amashubhu okukhipha igesi, nama-TVS diode aphindwe kabili.
Ikhawulela ukusetshenziswa kwe-resistor
Izintambo zekhebula nezivivinyo zinganikela ngamandla amakhulu emzileni wesiginali. Ama-inrush currents angase abe ngokwedlulele futhi adinge amadivayisi amanje akhawulelayo. Imisinga emikhulu ye-inrush ingageleza uma i-incandescent lamps, i-transformer kanye namadivayisi afanayo anikwa amandla ekuqaleni futhi umkhawulo wamanje kufanele usetshenziswe.
Sebenzisa izinqamuleli ezikhawulayo zamanje ukuze ukhawule umthamo wamanje obangelwa ikhebula namandla e-DUT.Clamp ivolumutage
Voltage clamping kufanele isetshenziswe uma imithombo yamandla inamandla okudala umthamo wesikhashanatagama-spikes.
Imithwalo ye-inductive efana namakhoyili e-relay nama-solenoid kufanele ibe ne-voltage clampukuwela phezu komthwalo ukucindezela amandla e-electromotive counter. Noma ngabe isikhashana voltagama-es akhiqizwa ekulayisheni akhawulelwe kudivayisi, ivolumu yesikhashanatagama-es azokhiqizwa yi-inductance uma izintambo zesifunda zizinde. Gcina izintambo zimfushane ngangokunokwenzeka ukuze unciphise i-inductance.
Sebenzisa i-diode ne-Zener diode ukuze uhlanganiseamp ivolumutagama-spikes akhiqizwa amandla e-counter electromotive kukhoyili edluliselwe. Sebenzisa ithubhu yokukhipha igesi ukuze uvimbele ama-spikes adlulayo ukuthi angalimazi i-relay. Uma idivayisi evivinywayo (i-DUT) ishintsha izimo zokuthikamezeka phakathi nokuhlolwa, ama-currents amaningi noma i-voltages ingase ivele ku-solid state relay. Uma i-DUT yehluleka ngenxa yokungasebenzi kahle, kungadingeka umkhawulo wamanje. Uma i-DUT yehluleka ngenxa yokungasebenzi kahle kwe-impedance, voltage clampkungase kudingeke.

Ukulinganisa

Izinqubo ezilandelayo zilinganisa izinzwa zokushisa kumamojula we-plug-in we-7710.
ISEXWAYISO
Ungazami ukwenza le nqubo ngaphandle uma ufanelekile, njengoba kuchazwe izinhlobo zabasebenzisi bomkhiqizo ezinyathelweni zokuphepha. Ungazenzi lezi zinqubo ngaphandle uma ufanelekile ukwenza kanjalo. Ukwehluleka ukubona nokubheka izinyathelo zokuphepha ezijwayelekile kungaholela ekulimaleni komuntu siqu noma ekufeni.
Ukusethwa kokulinganisa
Ukuze ulinganise imojuli, udinga okokusebenza okulandelayo.

• Ithemometha yedijithali: 18 °C kuya ku-28 °C ±0.1 °C
• I-Keithley 7797 Calibration/Extender Board

Izixhumanisi zebhodi le-Extender
I-extender board ifakwe ku-DAQ6510. Imojula ixhunywe ebhodini le-extender ngaphandle ukuvimbela ukushisa kwemojuli ngesikhathi sokulinganisa.
Ukwenza uxhumano lwebhodi elinwetshiwe:

1. Susa amandla ku-DAQ6510.
2. Faka ibhodi elinwetshiwe ku-Slot 1 sensimbi.
3. Xhuma imojula kusixhumi se-P1000 ngemuva kwe-7797 Calibration/Extender Board.

Ukulinganisa izinga lokushisa

QAPHELA
Ngaphambi kokulinganisa izinga lokushisa ku-7710, susa amandla kumojula okungenani amahora amabili ukuze uvumele ukujikeleza kwemojuli ukuthi kuphole. Ngemva kokuvula amandla ngesikhathi senqubo yokulinganisa, qedela inqubo ngokushesha ngangokunokwenzeka ukuze unciphise ukushisisa kwemojuli okungase kuthinte ukunemba kokulinganisa. Ekuqaleni vumela i-DAQ6510 ukuthi ifudumale okungenani ihora elilodwa kufakwe ikhadi lokulinganisa le-7797. Uma ulinganisa amamojula amaningi ngokulandelana, cisha i-DAQ6510, ukhiphe ngokushesha i-7710 elinganiselwe ngaphambilini, bese uxhuma elandelayo. Linda imizuzu emithathu ngaphambi kokulinganisa i-7710.

Setha ukulinganisa:

1. Vula amandla e-DAQ6510.
2. Ukuqinisekisa ukuthi ithuluzi lisebenzisa isethi yomyalo we-SCPI, thumela: *LANG SCPI
3. Kuphaneli engaphambili, qinisekisa ukuthi TERMINALS isethwe EMVA.
4. Vumela imizuzu emithathu yokulinganisa okushisayo.

Ukulinganisa izinga lokushisa:

1. Linganisa ngokunembile futhi urekhode izinga lokushisa elibandayo lemojuli engu-7710 enkabeni yemojuli nge-thermometer yedijithali.
2. Vula ukulinganisa ngokuthumela:
   :CALibration:Vikeliwe:CODE “KI006510”
3. Linganisa izinga lokushisa ku-7710 ngomyalo olandelayo, lapho izinga lokushisa lokulinganisa elibandayo likalwa esinyathelweni 1 ngenhla:
   :I-CALibration:Vikelwe:CARD1:STEP0
4. Thumela imiyalo elandelayo ukuze ugcine futhi uvale ukulinganisa:
   :Ukukhululwa:Kuvikelwe:IKHADI1:GCINA
   :Ukukhululwa:Kuvikelwe:IKHADI1:KHIQA

Amaphutha angenzeka ngesikhathi sokulinganisa
Uma kwenzeka amaphutha okulinganisa, abikwa kulogi yomcimbi. Ungakwazi kabushaview ilogi yomcimbi kusukela kuphaneli yangaphambili ye
insimbi ngokusebenzisa i-SCPI :SYSTem:EVENtlog:NEXT? umyalo noma i-TSP eventlog.next()
umyalo.
Iphutha elingenzeka kule mojula ngu-5527, iphutha le-Temperature Cold Cal. Uma leli phutha lenzeka, xhumana no-Keithley
Izinsimbi. Bheka isevisi yasefekthri (ekhasini 24).

Inkonzo yefektri

Ukuze ubuyisele i-DAQ6510 yakho ukuze ilungiswe noma ilungiswe, shayela u-1-800-408-8165 noma gcwalisa ifomu ku tek.com/services/repair/rma-request. Uma ucela isevisi, udinga inombolo ye-serial kanye ne-firmware noma inguqulo yesofthiwe yethuluzi.
Ukuze ubone isimo sesevisi yensimbi yakho noma ukudala isilinganiso senani elifunekayo, vakashela ku tek.com/service-quote.

Izinyathelo zokuphepha

Lezi zinyathelo zokuphepha ezilandelayo kufanele ziqashelwe ngaphambi kokusebenzisa lo mkhiqizo nanoma yiziphi izinsimbi ezihambisanayo. Nakuba ezinye izinsimbi nezinto ezisetshenziswayo ngokuvamile zingasetshenziswa ngevolthi engeyona ingozitages, kunezimo lapho izimo eziyingozi zingase zibe khona.
Lo mkhiqizo uhloselwe ukusetshenziswa izisebenzi ezibona izingozi zokushaqeka futhi ezijwayelene nezinyathelo zokuphepha ezidingekayo ukugwema ukulimala okungenzeka. Funda futhi ulandele yonke imininingwane yokufaka, ukusebenza, kanye nokugcinwa ngokucophelela ngaphambi kokusebenzisa umkhiqizo.
Bheka imibhalo yomsebenzisi ukuze uthole imininingwane ephelele yomkhiqizo. Uma umkhiqizo usetshenziswa ngendlela engashiwongo, ukuvikelwa okunikezwa iwaranti yomkhiqizo kungase konakaliswe.
Izinhlobo zabasebenzisi bomkhiqizo yilezi:
Umgwamanda onesibophezelo ngumuntu noma iqembu elibhekele ukusetshenziswa nokunakekelwa kwezinto zokusebenza, lokuqinisekisa ukuthi okokusebenza kusebenza ngaphansi kwemigomo ebekiwe kanye nemikhawulo yokusebenza, kanye nokuqinisekisa ukuthi abaqhubi baqeqeshwe ngokwanele. Ama-opharetha asebenzisa umkhiqizo ngomsebenzi wawo ohlosiwe. Kumele baqeqeshelwe izinqubo zokuphepha zikagesi kanye nokusetshenziswa ngendlela efanele kwethuluzi. Kufanele zivikelwe ekushayweni kukagesi kanye nokuthintana namasekhethi aphilayo ayingozi.
Izisebenzi zokunakekela zenza izinqubo ezijwayelekile emkhiqizweni ukuze ziwugcine usebenza kahle, ngokwesiboneloample, ukubeka umugqa voltage noma ukushintsha izinto ezisebenzisekayo. Izinqubo zokunakekela zichazwe emibhalweni yomsebenzisi. Izinqubo zisho ngokusobala ukuthi u-opharetha angazenza. Uma kungenjalo, kufanele zenziwe kuphela izisebenzi zesevisi.
Abasebenzi bezinsizakalo baqeqeshelwe ukusebenza kuma-circuits abukhoma, ukufaka ukufakwa okuphephile, nokulungisa imikhiqizo. Abasebenzi bezinsizakalo abaqeqeshwe kahle kuphela abangaqhuba izinqubo zokufaka nezensizakalo.
Imikhiqizo ye-Keithley yakhelwe ukusetshenziswa namasignali kagesi ayisilinganiso, isilawuli, kanye noxhumo lwedatha ye-I/O, enomthamo ophansi wesikhashana.tages, futhi akumele ixhunywe ngokuqondile kuma-mains voltage noma ku-voltagimithombo ye-e enomthamo omkhulu wesikhashanatages.
Isigaba Sokulinganisa II (njengoba kukhonjisiwe ku-IEC 60664) ukuxhumana kudinga ukuvikeleka kokudlulela okuphezulu kwesikhashanatages ivamise ukuhlotshaniswa noxhumo lwasendaweni lwe-AC mains. Amathuluzi wokulinganisa athile e-Keithley angase axhunywe kumapayipi amakhulu. Lawa mathuluzi azomakwa njengesigaba II noma ngaphezulu.
Ngaphandle kwalapho kuvunyelwe ngokusobala ekucacisweni, imanyuwali yokusebenza, namalebula wezinsimbi, ungaxhumi noma iyiphi into esetshenziswayo kumapayipi amakhulu. Qaphela kakhulu uma kunengozi yokushaqeka. Lethal voltagengase ibe khona kumajekhi wokuxhuma ikhebula noma ezintweni zokuhlola.
I-American National Standards Institute (ANSI) ithi ingozi yokushaqeka ikhona uma i-voltage amazinga angaphezu kuka-30 V RMS, 42.4 V ukuphakama, noma 60 VDC akhona. Umkhuba omuhle wokuphepha ukulindela leyo volumu eyingozitagu-e ukhona kunoma iyiphi isekethe engaziwa ngaphambi kokukala.
Abasebenza ngalo mkhiqizo kumele bavikeleke ekushayweni ugesi ngaso sonke isikhathi. Umgwamanda obhekele ezempilo kumele uqinisekise ukuthi ama-opharetha avinjelwa ukufinyelela kanye / noma ukufakwa ngamakhaza kuzo zonke izindawo zokuxhuma. Kwezinye izimo, ukuxhumana kufanele kuvezwe oxhumana nabo abangaba khona. Ama-product opharetha kulezi zimo kumele aqeqeshelwe ukuzivikela engozini yokushaywa ugesi. Uma isekethe likwazi ukusebenza noma ngaphezulu kuka-1000 V, akukho ngxenye eqhubekayo yesekethe engavezwa.
Ukuze uthole ukuphepha okuphezulu, ungathinti umkhiqizo, izintambo zokuhlola, nanoma yiziphi ezinye izisetshenziswa ngenkathi amandla esetshenziswa kusekethe evivinywayo. NJALO khipha amandla kuwo wonke uhlelo lokuhlola futhi ukhiphe noma imaphi ama-capacitor ngaphambi kokuxhuma noma ukunqamula izintambo noma ama-jumper, ukufaka noma ukukhipha amakhadi okushintsha, noma ukwenza izinguquko zangaphakathi, njengokufaka noma ukukhipha ama-jumper.
Ungathinti noma iyiphi into enganikeza indlela yamanje ohlangothini olujwayelekile lwesekethe ngaphansi kokuhlolwa noma ulayini wamandla (umhlaba) womhlabathi. Njalo yenza izilinganiso ngezandla ezomile ngenkathi umile endaweni eyomile, engafakwanga amandla okumelana ne-voltage kukalwa.
Ukuphepha, izinsimbi nezinto ezisetshenziswayo kumele zisetshenziswe ngokuhambisana nemiyalelo yokusebenza. Uma amathuluzi noma izesekeli zisetshenziswa ngendlela engashiwongo emiyalweni yokusebenza, ukuvikela okuhlinzekwa yimpahla kungase konakaliswe.
Ungadluli amaleveli esiginali aphezulu wamathuluzi nezinsiza. Amaleveli esignali aphezulu achazwa ekucacisweni nasekusetshenzisweni kolwazi futhi aboniswa kumaphaneli wezinsimbi, amaphaneli okusebenza kokuhlola, namakhadi okushintsha. Ukuxhunywa kwe-chassis kufanele kusetshenziswe kuphela njengokuxhumana kwesihlangu kumasekhethi okulinganisa, HHAYI njengokuxhumana komhlaba ovikelayo (indawo yokuphepha).
I ISEXWAYISO ukubhalwa emibhalweni yomsebenzisi kuchaza izingozi ezingadala ukulimala noma ukufa komuntu. Njalo funda imininingwane ehambisanayo kahle ngaphambi kokwenza inqubo ekhonjisiwe.
I ISEXWAYISO isihloko kumadokhumenti omsebenzisi sichaza izingozi ezingase zilimaze ithuluzi. Umonakalo onjalo ungase
yenza iwaranti ingasebenzi.
I ISEXWAYISO isihloko esinophawu kumadokhumenti omsebenzisi sichaza izingozi ezingase zibangele ukulimala okumaphakathi noma okuncane noma zilimaze ithuluzi. Ngaso sonke isikhathi funda ulwazi oluhlobene ngokucophelela ngaphambi kokwenza inqubo ebonisiwe.
Ukulimala kwensimbi kungavimbela iwaranti.
Amathuluzi nezinto ezisetshenziswayo ngeke zixhunywe kubantu.
Ngaphambi kokwenza noma yisiphi isondlo, nqamula intambo yolayini nazo zonke izintambo zokuhlola.
Ukuze ulondoloze ukuvikeleka ekushayweni kukagesi nomlilo, izingxenye ezishintshayo kumasekhethi amakhulu - okuhlanganisa isiguquli samandla, imikhondo yokuhlola, namajekhi okufaka - kufanele kuthengwe ku-Keithley. Amafuse ajwayelekile anemvume yokuphepha kazwelonke esebenzayo angasetshenziswa uma isilinganiso nohlobo kufana. Intambo yamandla eyinhloko ekhiphekayo enikezwa nethuluzi ingashintshwa kuphela ngentambo yamandla elinganiselwe ngokufanayo. Ezinye izingxenye ezingahlobene nokuphepha zingathengwa kwabanye abahlinzeki inqobo nje uma benazo
zilingana nengxenye yokuqala (qaphela ukuthi izingxenye ezikhethiwe kufanele zithengwe kuphela nge-Keithley ukuze kugcinwe ukunemba nokusebenza komkhiqizo). Uma ungaqiniseki ngokusebenza kwengxenye yokumiselela, shayela ihhovisi lakwa-Keithley ukuze uthole ulwazi.
Ngaphandle kwalapho kuphawulwe ngenye indlela ezincwadini eziqondene nomkhiqizo, amathuluzi e-Keithley adizayinelwe ukusebenza endlini kuphela, endaweni elandelayo: Altitude at or below 2,000 m (6,562 ft); izinga lokushisa 0 °C kuya ku-50 °C (32 °F kuya ku-122 °F); kanye neziqu zokungcola 1 noma 2.
Ukuhlanza ithuluzi, sebenzisa indwangu dampefakwe ngamanzi akhishiwe noma isicoci esithambile esisekelwe emanzini. Hlanza ingaphandle lensimbi kuphela. Ungafaki okokuhlanza ngqo entweni noma uvumele uketshezi ukuthi lungene noma luchitheke entweni. Imikhiqizo equkethe ibhodi lesekethe elingenakesi noma i-chassis (isb, ibhodi yokutholwa kwedatha ukuze ifakwe kukhompuyutha) akufanele neze idinge ukuhlanzwa uma isingathwa ngokwemiyalelo. Uma ibhodi lingcoliswa futhi ukusebenza kuphazamisekile, ibhodi kufanele libuyiselwe efekthri ukuze lihlanzeke/lihlinzekwe kahle.
Ukubuyekezwa kokuqapha ezokuphepha kusukela ngoJuni 2018.

Amadokhumenti / Izinsiza

KEITHLEY 7710 Multiplexer Module [pdf] Iziyalezo 7710 Multiplexer Module, 7710, Multiplexer Module, Module

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