7710 Multiplexer Module
UmarniModel 7710 Multiplexer Module
Umarnin don amfani tare da DAQ6510
Abubuwan da aka bayar na Keithley Instruments
Hanyar Aurora 28775
Cleveland, Ohio 44139
1-800-833-9200
tek.com/keithley

Gabatarwa

7710 20-channel Solid-state Multiplexer Multiplexer tare da Automatic Cold Junction Compensation (CJC) yana ba da tashoshi 20 na 2-pole ko tashoshi 10 na shigarwar relay na 4-pole wanda za'a iya daidaita su azaman bankuna masu zaman kansu guda biyu na multiplexers. Relays ne m jihar, samar da tsawon rai da low tabbatarwa. Yana da manufa don aikace-aikacen shigar da bayanai na dogon lokaci da kuma buƙatar aikace-aikace masu sauri.
Hoto 1: 7710 20-Channel Bambancin Multiplexer Module Abun da aka aika zai iya bambanta daga samfurin hoto a nan.
7710 ya ƙunshi abubuwa masu zuwa:

• Mai saurin aiwatarwa, daɗaɗɗen rai-na-jihar relays
• DC da AC voltage auna
• Ma'aunin juriya mai waya biyu ko huɗu (biyu ta atomatik don ma'aunin waya huɗu)
• Aikace-aikacen zafin jiki (RTD, thermistor, thermocouple)
• Gina-in-in sanyi junction tunani don thermocouple zafin jiki
• Kulle hanyoyin haɗin kai

NOTE
Ana iya amfani da 7710 tare da DAQ6510 Data Acquisition da Multimeter System.
Idan kana amfani da wannan tsarin sauyawa tare da 2700, 2701, ko 2750, da fatan za a duba Model 7710 Multiplexer
Jagorar Mai Amfani da Kati, Keithley Instruments PA-847.

Haɗin kai

Ana samar da tashoshi na dunƙule kan tsarin sauyawa don haɗi zuwa na'ura a ƙarƙashin gwaji (DUT) da kewayen waje. 7710 yana amfani da tubalan tasha masu saurin cire haɗin kai. Kuna iya yin haɗin kai zuwa toshe tasha lokacin da aka cire haɗin daga tsarin. Waɗannan tubalan tasha an ƙididdige su don haɗin kai 25 da cire haɗin.
GARGADI
Hanyoyin haɗi da wayoyi a cikin wannan takaddar an yi nufin amfani da su ta ƙwararrun ma'aikata kawai, kamar yadda nau'ikan masu amfani da samfur suka bayyana a cikin matakan tsaro (a shafi na 25). Kada ku yi waɗannan hanyoyin sai dai idan kun cancanci yin haka. Rashin ganewa da kiyaye matakan tsaro na yau da kullun na iya haifar da rauni ko mutuwa.
Bayanin da ke gaba yana bayyana yadda ake haɗa haɗin kai zuwa tsarin sauyawa da ayyana sunayen tashoshi. An samar da log ɗin haɗi wanda zaku iya amfani da shi don yin rikodin haɗin haɗin ku.
Hanyar waya
Yi amfani da wannan hanya don yin haɗi zuwa 7710 module. Yi duk haɗin gwiwa ta amfani da madaidaicin girman waya (har zuwa 20 AWG). Don iyakar aikin tsarin, duk igiyoyin ma'auni ya kamata su kasance ƙasa da mita uku. Ƙara ƙarin rufi a kusa da kayan doki don voltagsama da 42 VPEAK.
GARGADI
Dole ne a ƙididdige duk wayoyi don iyakar voltage a cikin tsarin. Domin misaliample, idan 1000 V aka yi amfani da gaban tashoshi na kayan aiki, da sauyawa module wiring dole ne a rated for 1000 V. Rashin gane da kiyaye al'ada kariya kariya iya haifar da mutum rauni ko mutuwa.
Kayan aiki da ake buƙata:

• Flat-ruwa magogi
• Allura-hanci
• Abubuwan haɗin kebul

Don waya da 7710 module:

1. Tabbatar cewa an cire duk iko daga 7710 module.
2. Yin amfani da screwdriver, juya hanyar shiga don buɗewa da buɗe murfin, kamar yadda aka nuna a cikin adadi mai zuwa.
   Hoto na 2: Screw access terminal
3. Idan ana buƙata, cire madaidaicin toshe mai saurin cire haɗin kai daga tsarin.
   a. Sanya screwdriver mai lebur a ƙarƙashin mahaɗin kuma a hankali matsa sama don kwance shi, kamar yadda aka nuna a cikin adadi mai zuwa.
   b. Yi amfani da filan allura-hanci don ja mai haɗin kai tsaye.
   HANKALI
   Kar a girgiza mai haɗin haɗin daga gefe zuwa gefe. Lalacewa ga fil na iya haifarwa.
   Hoto 3: Hanyar da ta dace don cire tubalan tashoshi   
4. Yin amfani da ƙaramin screwdriver mai lebur, sassauta skru na ƙarshe kuma shigar da wayoyi kamar yadda ake buƙata. Hoto na gaba yana nuna haɗin kai, gami da haɗin kai zuwa tushe da hankali.
   Hoto 4: Screw tashoshi tashoshi
5. Toshe toshe tasha a cikin tsarin.
6. Yi hanyar waya tare da hanyar waya kuma amintacce tare da haɗin kebul kamar yadda aka nuna. Hoto na gaba yana nuna haɗin kai zuwa tashoshi 1 da 2.
   Hoto na 5: Tufafin waya
7. Cika kwafin log ɗin haɗin gwiwa. Duba log ɗin haɗi (a shafi na 8).
8. Rufe murfin samun damar surkulle.
9. Yin amfani da sukudireba, latsa maɓallin shiga kuma juya don kulle murfin.

Tsarin tsari

Hoton da ke gaba yana nuna ƙayyadadden tsari na 7710 module. Kamar yadda aka nuna, 7710 yana da tashoshi waɗanda aka haɗa su zuwa bankuna biyu na tashoshi 10 (tashoshi 20 duka). Ana ba da keɓewar jirgin baya ga kowane banki. Kowane banki ya ƙunshi wurare daban-daban na junction na sanyi. Bankin farko ya ƙunshi tashoshi 1 zuwa 10, yayin da bankin na biyu ya ƙunshi tashoshi 11 zuwa 20. Kowane tashoshi na 20-channel multiplexer module an haɗa shi tare da bayanai daban-daban don HI/LO yana ba da cikakkun bayanai.
Ana ba da haɗin kai zuwa ayyukan DMM ta hanyar haɗin haɗin jirgin baya.
Tashoshi 21, 22, da 23 ana saita su ta atomatik ta kayan aiki lokacin amfani da aikin tashar tsarin.
Lokacin amfani da aikin tashar tsarin don ma'aunin waya 4 (gami da 4-waya ohms, zazzabi na RTD, Ratio, da Matsakaicin Tashoshi), ana haɗa tashoshi kamar haka:

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

NOTE
Tashoshi na 21 zuwa 23 a cikin wannan tsari suna magana ne akan zane-zane da aka yi amfani da su don sarrafawa kuma ba tashoshi na ainihi ba. Don ƙarin bayani, koma zuwa littafin bayanin kayan aiki.
Hoto 6: 7710 mai sauƙin tsari

Haɗi na yau da kullun

Mai zuwa exampmu nuna hanyoyin haɗin waya na yau da kullun don nau'ikan ma'auni masu zuwa:

• Thermocouple
• Biyu-waya juriya da thermistor
• Juriya mai waya hudu da RTD
• DC ko AC voltage

Login haɗi

Kuna iya amfani da tebur mai zuwa don yin rikodin bayanan haɗin ku.
Rahoton da aka ƙayyade na 7710

Tashoshi		Launi	Bayani
Tushen Kati	H
	L
Hankalin Kati	H
	L
CH1	H
	L
CH2	H
	L
CH3	H
	L
CH4	H
	L
CH5	H
	L
CH6	H
	L
CH7	H
	L
CH8	H
	L
CH9	H
	L
CH10	H
	L
CH11	H
	L
CH12	H
	L
CH13	H
	L
CH14	H
	L
CH15	H
	L
CH16	H
	L
CH17	H
	L
CH18	H
	L
CH19	H
	L
CH2O	H
	L

Shigarwa

Kafin aiki da kayan aiki tare da na'ura mai sauyawa, tabbatar da cewa an shigar da na'urar sauya fasalin yadda ya kamata kuma an ɗaure ƙullun masu hawa sosai. Idan ba a haɗa sukukuwan hawa da kyau ba, haɗarin girgiza wutar lantarki na iya kasancewa.
Idan kana shigar da na'urori masu sauyawa guda biyu, yana da sauƙi don shigar da tsarin sauyawa zuwa Ramin 2 na farko, sannan shigar da na'ura mai sauyawa na biyu zuwa Ramin 1.
NOTE
Idan kana da Keithley Instruments Model 2700, 2701, ko 2750 kayan aiki, za ka iya amfani da data kasance sauyawa module a cikin DAQ6510. Bi umarnin a cikin takaddun kayan aikinku na asali don cire ƙirar daga kayan aikin, sannan yi amfani da umarni masu zuwa don shigar da shi a cikin DAQ6510. Ba kwa buƙatar cire wayoyi zuwa tsarin.
NOTE
Ga masu amfani da ƙwararru, ana ba da shawarar kada ku haɗa na'ura a ƙarƙashin gwaji (DUT) da kewayen waje zuwa tsarin sauyawa. Wannan yana ba ku damar motsa jiki na kusa da buɗe ayyukan ba tare da hatsarori da ke da alaƙa da da'irorin gwaji kai tsaye ba. Hakanan zaka iya saita katunan pseudocard don gwaji tare da sauyawa. Koma zuwa "Pseudocards" a cikin Model DAQ6510 Data Sayen da Manual Reference System Multimeter don bayani kan kafa pseudocards.
GARGADI
Don hana girgiza wutar lantarki wanda zai iya haifar da rauni ko mutuwa, kar a taɓa yin amfani da na'ura mai sauyawa wanda ke da iko akansa. Kafin shigarwa ko cire tsarin sauyawa, tabbatar da an kashe kayan aikin kuma an cire haɗin daga wutar layi. Idan an haɗa tsarin sauyawa zuwa DUT, tabbatar an cire wuta daga duk kewayen waje.
GARGADI
Dole ne a shigar da murfin ramin akan ramukan da ba a yi amfani da su ba don hana hulɗar sirri tare da babban volttage da'irori. Rashin ganewa da kiyaye daidaitattun matakan tsaro na iya haifar da rauni ko mutuwa saboda girgiza wutar lantarki.
HANKALI
Kafin shigarwa ko cire tsarin sauyawa, tabbatar cewa an kashe wutar DAQ6510 kuma an cire haɗin daga wutar layi. Rashin yin biyayya zai iya haifar da aiki mara kyau da asarar bayanai a cikin ƙwaƙwalwar ajiya.
Kayan aiki da ake buƙata:

• Matsakaici lebur-bade sukudireba
• Medium Phillips magogi

Don shigar da tsarin sauyawa cikin DAQ6510:

1. Kashe DAQ6510.
2. Cire haɗin wutar lantarki daga tushen wutar lantarki.
3. Cire haɗin igiyar wutar lantarki da duk wasu igiyoyi waɗanda ke haɗe zuwa ɓangaren baya.
4. Sanya DAQ6510 don haka kuna fuskantar ɓangaren baya.
5. Yi amfani da screwdriver don cire skru na murfin ramin da farantin murfin. Rike farantin da sukurori don amfani na gaba.
6. Tare da saman murfin modul na sauyawa yana fuskantar sama, zame maɓallin sauyawa cikin ramin.
7. Latsa tsarin sauyawa a cikin damtse don tabbatar da cewa an haɗa mahaɗin na'ura zuwa mai haɗin DAQ6510.
8. Yi amfani da screwdriver don ƙara matsawa biyu masu hawa sukukuwa don tabbatar da tsarin sauyawa zuwa babban firam ɗin. Kada ku wuce gona da iri.
9. Sake haɗa igiyar wutar lantarki da duk wasu igiyoyi.

Cire tsarin sauyawa

NOTE
Kafin ka cire tsarin sauyawa ko fara kowane gwaji, tabbatar cewa duk relays a buɗe suke. Tunda ana iya kulle wasu relays a rufe, dole ne ka buɗe duk relays kafin cire na'urar sauyawa don yin haɗi. Bugu da ƙari, idan kun sauke tsarin sauyawa na ku, yana yiwuwa wasu relays su rufe.
Don buɗe duk relays na tashoshi, je zuwa allon swipe na CHANNEL. Zaɓi Buɗe Duk.
GARGADI
Don hana girgiza wutar lantarki wanda zai iya haifar da rauni ko mutuwa, kar a taɓa yin amfani da na'ura mai sauyawa wanda ke da iko akansa. Kafin shigarwa ko cire tsarin sauyawa, tabbatar da an kashe DAQ6510 kuma an cire haɗin daga wutar layi. Idan an haɗa tsarin sauyawa zuwa DUT, tabbatar an cire wuta daga duk kewayen waje.
GARGADI
Idan ba a yi amfani da ramin katin ba, dole ne ka shigar da murfin ramin don hana hulɗar sirri tare da babban voltage da'irori. Rashin shigar da murfi na ramummuka na iya haifar da bayyanar mutum ga mai haɗari voltages, wanda zai iya haifar da rauni ko mutuwa idan an tuntube shi.
HANKALI
Kafin shigarwa ko cire tsarin sauyawa, tabbatar cewa an kashe wutar DAQ6510 kuma an cire haɗin daga wutar layi. Rashin yin biyayya zai iya haifar da aiki mara kyau da asarar bayanai a cikin ƙwaƙwalwar ajiya.
Kayan aiki da ake buƙata:

• Matsakaici lebur-bade sukudireba
• Medium Phillips magogi

Don cire tsarin sauyawa daga DAQ6510:

1. Kashe DAQ6510.
2. Cire haɗin wutar lantarki daga tushen wutar lantarki.
3. Cire haɗin igiyar wutar lantarki da duk wasu igiyoyi waɗanda ke haɗe zuwa ɓangaren baya.
4. Sanya DAQ6510 don haka kuna fuskantar ɓangaren baya.
5. Yi amfani da screwdriver don sassauta skru masu hawa waɗanda ke amintaccen tsarin sauyawa zuwa kayan aiki.
6. A hankali cire tsarin sauyawa.
7. Shigar da farantin ramuka ko wani tsarin sauyawa a cikin ramin da babu kowa.
8. Sake haɗa igiyar wutar lantarki da duk wasu igiyoyi.

Umarnin aiki

HANKALI
Kafin shigarwa ko cire samfurin 7710, tabbatar cewa an kashe wutar DAQ6510 kuma an cire haɗin daga wutar layi. Rashin yin aiki na iya haifar da aiki mara kyau da asarar bayanai daga ƙwaƙwalwar ajiyar 7710.
HANKALI
Don hana zafi ko lalacewa ga relays na 7710 na sauyawa, kar a taɓa ƙetare matsakaicin matsakaicin matakan sigina tsakanin kowane abu biyu ko chassis: Duk wani tashar zuwa kowane tashar (1 zuwa 20): 60 VDC ko 42 VRMS, 100 mA ya canza, 6 W, 4.2 VA mafi girma.
Kada ku wuce iyakar ƙayyadaddun bayanai don 7710. Koma zuwa ƙayyadaddun bayanai da aka bayar a cikin bayanan bayanai. Rashin ganewa da kiyaye matakan tsaro na yau da kullun na iya haifar da rauni ko mutuwa.
GARGADI
Lokacin da aka shigar da tsarin 7710 a cikin DAQ6510, ana haɗa shi da abubuwan gaba da na baya da sauran kayayyaki a cikin tsarin ta hanyar jirgin baya na kayan aiki. Don hana lalacewar tsarin 7710 kuma don hana ƙirƙirar haɗarin girgiza, duk tsarin gwajin da duk abubuwan da ke cikin sa yakamata a lalata su zuwa 60 VDC (42 VRMS). Rashin ganewa da kiyaye matakan tsaro na yau da kullun na iya haifar da rauni ko mutuwa. Koma zuwa takaddun kayan aiki don umarnin aiki.
GARGADI
Wannan tsarin sauyawa baya goyan bayan ma'auni na yanzu. Idan kayan aikin yana da TERMINALS canza saitin zuwa REAR kuma kuna aiki tare da ramin da ke ɗauke da wannan tsarin sauyawa, AC, DC, da digitize ayyuka na yanzu ba su samuwa. Kuna iya auna halin yanzu ta amfani da gaban gaban ko yin amfani da wani ramin da ke ƙunshe da tsarin sauyawa wanda ke goyan bayan AC, DC, da ƙididdige ma'aunin halin yanzu.
Idan kayi amfani da umarnin nesa don ƙoƙarin auna halin yanzu lokacin saita tasha, an dawo da kuskure.
Binciken sauri ta amfani da 7710 module tare da DAQ6510 mainframe
Shirin SCPI mai zuwa yana nunawa ta amfani da 7710 module da DAQ6510 mainframe don cimma nasarar dubawa da sauri. Yana amfani da ikon WinSocket don sadarwa tare da babban firam na 7710.

DAQ6510 ya da pseudocode	Umurni	Bayani
Pseudocode	int scanCnt = 1000	Ƙirƙiri mai canzawa don riƙe ƙidayar dubawa
	int sampleCnt	Ƙirƙiri mai canzawa don riƙe cikakken sample count (jimlar adadin karatu)
	in chanCnt	Ƙirƙiri mai canzawa don riƙe ƙidayar tashar
	int ainihinRdgs	Ƙirƙiri mai canzawa don riƙe ainihin ƙidayar karatu
	kirtani rcvBuffer	Ƙirƙiri madaidaicin igiya don riƙe karatun da aka fitar
	t imar 1. fara ()	Fara mai ƙidayar lokaci don taimakawa ɗaukar lokacin da ya wuce
DAQ6510	• RST	Saka kayan aiki a cikin yanayin da aka sani
	FIM: DATA ASCII	Tsara bayanai azaman kirtani ASCII
	ROUT: SCAN: COUN : SCAN scanCnt	Aiwatar da ƙidayar dubawa
	FUNC 'VOLT:DC' , (@101:120)	Saita aiki zuwa DCV
	ZAMANI: RANG 1, (@101:120)	Saita tsayayyen kewayon a 1 V
	Volt: AVER: KASHE, (@101:120)	Kashe kididdigar baya
	DISP : VOLT: DIG 4, (@101:120)	Saita sashin gaba don nuna mahimman lambobi 4
	VOLT :NPLC 0.0005, (@101:120)	Saita mafi sauri NPLC mai yiwuwa
	KYAUTA: LINE: KYAUTA, (@101:120)	Kashe layi aiki tare
	Volt: AZER: KASHE, (@101:120)	Kashe sifilin atomatik
	CALC2 :VOLT :LIM1 :KASHE, (@101:120)	Kashe gwajin iyaka
	CALC2 :VOLT :LIM2 :KASHE, (@101:120)
	ROUT : SCAN : INT 0	Saita tazarar faɗakarwa tsakanin dubawa zuwa 0 s
	TRAC: CLE	Share abin ajiyar karatu
	KASHE: KYAU: KASHE MATSAYI	Kashe nunin
	GABATARWA :SCAN :CRE (@101:120)	Saita lissafin duba
	chanCnt = HANYA :SCAN: COUNT: MATAKI?	Nemi adadin tashar
Pseudocode	sampleCnt = scanCnt • chanCnt	Yi lissafin adadin karatun da aka yi
DAQ6510	INIT	Fara sikanin
Pseudocode	na i = 1, i <sampleCnt	Saita af ko madauki daga 1 zuwa sampleCnt. amma barin karuwar 1 na gaba
	jinkiri 500	Jinkiri na 500 ms don ba da damar yin karatu
DAQ6510	actualRdgs = TRAce: ACTual?	Nemi ainihin karatun da aka kama
	rcvBuffer = “TRAce:DATA? i, actualRdgs, “defbuf ferl”, KARANTA	Nemi karatun da ake samu daga i zuwa ƙimar ainihinRdgs
Pseudocode	WriteReadings ("C: \ myData . csv", rcvBuffer)	Rubuta karatun da aka ciro zuwa a file. myData.csv. akan kwamfutar gida
	i = ainihinRdgs + 1	Ƙara i don wucewar madauki na gaba
	karshen domin	Ƙare f ko madauki
	mai lokaci 1. tsaya()	Dakatar da mai ƙidayar lokaci
	timerl.stop – timerl.fara	Yi lissafin lokacin da ya wuce
DAQ6510	KASHE: LICH: STAT ON100	Kunna nuni kuma

Shirin TSP mai zuwa yana nunawa ta amfani da 7710 module da DAQ6510 mainframe don cimma saurin dubawa. Yana amfani da ikon WinSocket don sadarwa tare da babban firam na 7710.
- Saita masu canji da za a yi la'akari yayin binciken.
scanCnt = 1000
sampleCnt = 0
chanCnt = 0
ainihinRdgs = 0
rcvBuffer = ""
- Samu lokacin farkoamp don kwatanta ƙarshen-gudu.
local x = os.clock()
- Sake saitin kayan aiki kuma share majinin.
sake saiti()
defbuffer1.bayyana ()
- Saita tsarin buffer karatu kuma kafa ƙidayar dubawa
tsari.data = tsari.ASCII
scan.scancount = scanCnt
- Sanya tashoshin duba katin a cikin Ramin 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)
- Dim nuni.
nuni.lightstate = nuni.STATE_LCD_OFF
- Samar da sikanin.
scan. halitta ("101:120")
scan.scaninterval = 0.0
chanCnt = scan.stepcount
- Lissafin sample ƙirga kuma amfani da shi don girman ma'ajin.
sampleCnt = scanCnt * chanCnt
defbuffer1. iya aiki = sampleCnt
- Fara sikanin.
trigger.model.initiate()
- Maɗaukaki don ɗauka da buga karatu.
ina = 1
yayin da nake <= sampba a yi
jinkiri (0.5)
myCnt = defbuffer1.n
- NOTE: Ana iya ƙarawa ko maye gurbinsu ta hanyar rubutu zuwa USB
buffer (i, myCnt, defbuffer1.readings)
i = myCnt + 1
karshen
- Kunna nuni kuma.
nuni.lightstate = nuni.STATE_LCD_50
- Fitar da lokacin da ya wuce.
buga (string.format ("Lokaci mai wucewa: %2f\n", os.clock () - x))

La'akari da aiki

Low-ohms ma'auni
Don juriya a cikin kewayon al'ada (> 100 Ω), hanyar 2-waya (Ω2) galibi ana amfani da ita don ma'aunin ohms.
Don ƙananan ohms (≤100 Ω), siginar siginar juriya a cikin jerin tare da DUT na iya zama babban isa don cutar da ma'aunin. Don haka, ya kamata a yi amfani da hanyar 4-waya (Ω4) don ma'aunin low-ohms. Tattaunawar da ke gaba tana bayyana iyakokin hanyar 2-waya da advantages na hanyar 4-waya.
Hanyar waya biyu
Ma'aunin juriya a cikin kewayon al'ada (> 100 Ω) gabaɗaya ana yin su ta amfani da hanyar waya 2 (aikin Ω2). Ana tilastawa gwajin halin yanzu ta hanyar gwajin gwajin da juriya da ake auna (RDUT). Mitar sannan tana auna juzu'itage fadin juriya darajar daidai.
Babban matsala tare da hanyar 2-waya, kamar yadda aka yi amfani da shi zuwa ƙananan ma'auni shine gwajin gwajin gwagwarmaya (RLEAD) da kuma tashar tashar (RCH). Jimlar waɗannan juriya yawanci tana cikin kewayon 1.5 zuwa 2.5 Ω.
Saboda haka, yana da wahala a sami daidaitattun ma'aunin ohms 2-waya ƙasa da 100 Ω.
Saboda wannan iyakancewa, ya kamata a yi amfani da hanyar 4-waya don ma'aunin juriya ≤100 Ω.
Hanyar waya hudu
Hanyar haɗin waya 4 (Kelvin) ta amfani da aikin Ω4 gabaɗaya an fi so don ma'aunin ƙananan-ohms.
Hanyar 4-waya ta soke tasirin tashar da gwajin juriya na gubar.
Tare da wannan tsarin, ana tilasta gwajin halin yanzu (ITEST) ta hanyar juriya na gwaji (RDUT) ta hanyar saiti ɗaya na jagorar gwaji (RLEAD2 da RLEAD3), yayin da vol.tage (VM) a duk faɗin na'urar da ke ƙarƙashin gwaji (DUT) ana auna ta ta hanyar saiti na biyu na jagoranci (RLEAD1 da RLEAD4) da ake kira ma'anar jagoranci.
Tare da wannan tsari, ana ƙididdige juriya na DUT kamar haka:
RDUT = VM / ITEST
Inda: Ni ne tushen gwajin halin yanzu kuma V shine ma'aunin da aka aunatage.
Kamar yadda aka nuna a cikin adadi a Matsakaicin juriyar jagorar gwaji (a shafi na 17), ma'aunin da aka aunatage (VM) shine bambanci tsakanin VSHI da VSLO. Lissafin da ke ƙasa da adadi suna nuna yadda ake soke juriyar gwajin gubar daga tsarin aunawa.
Matsakaicin juriyar gubar gwaji
Matsakaicin juriya na jagorar gwaji (RLEAD), don takamaiman kewayon juriya na waya 4:

• 5 Ω a kowace gubar don 1 Ω
• 10% na kewayon kowane gubar don 10 Ω, 100 Ω, 1 kΩ, da 10 kΩ jeri
• 1 kΩ a kowace gubar don 100 kΩ, 1 MΩ, 10 MΩ, da 100 MΩ jeri

Zato:

• Kusan babu halin yanzu da ke gudana a cikin da'irar ma'ana mai ƙarfi saboda tsananin ƙarfin ƙarfin voltmeter (VM). Saboda haka, voltage ya faɗi a fadin Channel 11 kuma gwajin jagorar 1 da 4 ba su da komai kuma ana iya yin watsi da su.
• Voltage saukad da fadin Channel 1 Hi (RCH1Hi) da gwajin gubar 2 (RLEAD2) ba a auna ta voltmeter (VM).

RDUT = VM/ITEST
Inda:

• VM shine voltage auna ta kayan aiki.
• ITEST shine ci gaba na halin yanzu da kayan aikin ke samarwa zuwa DUT.
• VM = VSHI - VSLO
• VSHI = ITEST × (RDUT + RLEAD3 + RCH1Lo)
• VSLO = KYAUTA × (RLEAD3 + RCH1Lo)
• VSHI - VSLO = ITEST × [(RDUT + RLEAD3 + RCH1Lo) - (RLEAD3 + RCH1Lo)]
• = ITEST × RDUT
• = VM

Voltage ma'auni
Juriyar hanya na iya yin illa ga ma'aunin ƙananan-ohms (duba ma'aunin Low-ohms (a shafi na 16) don ƙarin bayani). Juriya na hanya na iya haifar da matsalolin lodi don DC voltage aunawa akan kewayon 100 V, 10 V, da 10 mV lokacin da aka kunna mai rarraba shigarwar 10 MΩ. Babban juriya na sigina kuma na iya yin illa ga AC voltage aunawa akan kewayon 100 V sama da 1 kHz.
Asarar shigarwa
Asarar shigarwa shine ikon siginar AC da ya ɓace tsakanin shigarwar da fitarwa. Gabaɗaya, yayin da mita ke ƙaruwa, asarar shigarwa yana ƙaruwa.
Don tsarin 7710, an ƙayyade asarar shigarwa don tushen siginar AC 50 Ω da aka yi ta hanyar ƙirar zuwa nauyin 50 Ω. Asarar wutar sigina na faruwa yayin da ake bi da siginar ta hanyoyin siginar ƙirar zuwa kaya. Ana bayyana asarar shigarwa azaman girman dB a ƙayyadaddun mitoci. Ana ba da ƙayyadaddun bayanai don asarar sakawa a cikin takardar bayanan.
A matsayin example, ɗauka dalla-dalla masu zuwa don asarar sakawa:
<1 dB @ 500 kHz 1 dB asarar shigar shine kusan 20% asarar ikon sigina.
<3 dB @ 2 MHz 3 dB asarar shigar shine kusan 50% asarar ikon sigina.
Yayin da mitar sigina ke ƙaruwa, asarar wuta yana ƙaruwa.
NOTE
Ƙimar asarar da aka yi amfani da ita a cikin sama misaliample bazai zama ainihin bayanan asarar shigarwa na 7710. Ana ba da ƙayyadaddun ƙayyadaddun asarar da aka yi a cikin bayanan bayanai.
Katsalandan
Ana iya shigar da siginar AC zuwa hanyoyin tashoshi masu kusa akan tsarin 7710. Gabaɗaya, yin magana yana ƙaruwa yayin da mitar ke ƙaruwa.
Don tsarin 7710, an ƙayyade crosstalk don siginar AC da aka bi ta cikin tsarin zuwa nauyin 50 Ω. An bayyana Crosstalk azaman girman dB a ƙayyadadden mitar. An bayar da ƙayyadaddun ƙayyadaddun ƙayyadaddun magana a cikin takaddar bayanan.
A matsayin example, ɗauka ƙayyadaddun ƙayyadaddun ƙayyadaddun bayanai don crosstalk:
<-40 dB @ 500 kHz -40 dB yana nuna cewa ƙetare tashoshi na kusa shine 0.01% na siginar AC.
Yayin da mitar sigina ke ƙaruwa, magana tana ƙaruwa.
NOTE
Ƙimar crosstalk da aka yi amfani da ita a cikin sama misaliample bazai zama ainihin ƙayyadaddun ƙayyadaddun magana na 7710. An ba da ainihin ƙayyadaddun ƙayyadaddun magana a cikin bayanan.
Ma'aunin zafin zafin zafi
Auna zafin zafin da ke nutsewa gwaji ne na yau da kullun don tsarin da ke da ikon auna zafin jiki. Duk da haka, ba za a iya amfani da tsarin 7710 ba idan ana shawagi mai zafi a wani voltage matakin (> 60V). ExampAna nuna irin wannan gwajin a ƙasa.
A cikin wannan adadi mai zuwa, ma'aunin zafi yana shawagi a 120 V, wanda shine layin voltage ana shigar da shi zuwa mai sarrafa +5V.
Manufar ita ce a yi amfani da tashoshi 1 don auna zafin zafin zafin jiki, da kuma amfani da tashar 2 don auna fitowar +5 V na mai sarrafawa. Don mafi kyawun canja wurin zafi, ana sanya thermocouple (TC) a cikin hulɗar kai tsaye tare da matattarar zafi. Wannan ba da gangan ya haɗu da yuwuwar 120 V mai iyo zuwa 7710 module. Sakamakon shine 115 V tsakanin tashar 1 da tashar 2 HI, da 120 V tsakanin tashar 1 da chassis. Waɗannan matakan sun wuce iyakar 60 V na ƙirar, haifar da haɗari mai haɗari da yiwuwar haifar da lalacewa ga tsarin.
GARGADI
Gwajin a cikin adadi mai zuwa yana nuna yadda haɗari voltage za a iya amfani da ba da gangan ba ga 7710 module. A kowace gwaji inda mai iyo voltages> 60 V suna nan, dole ne ku yi hankali kada ku yi amfani da juzu'in iyotage zuwa module. Rashin ganewa da kiyaye matakan tsaro na yau da kullun na iya haifar da rauni ko mutuwa.
HANKALI
Kada kayi amfani da tsarin 7710 don yin irin wannan gwajin. Ya wuce iyakar 60V yana haifar da haɗari kuma zai iya haifar da lalacewa ga tsarin. Wuce kima voltage:
Voltage bambanci tsakanin Ch 1 da Ch 2 HI shine 115 V.
Voltage bambanci tsakanin Ch 1 da Ch 2 LO (chassis) shine 120 V.

Kariyar kulawar tsarin
Matsakaicin juzu'i mai ƙarfi da aka yi amfani da su akan tsarin 7710 na'urori ne masu mahimmanci. Saboda haka, ana iya lalata su ta hanyar fitar da wutar lantarki (ESD).
HANKALI
Don hana lalacewa daga ESD, riƙe ƙirar kawai ta gefen katin. Kar a taɓa tashoshi masu haɗin jirgin baya. Lokacin aiki tare da tubalan tasha masu saurin cire haɗin kai, kar a taɓa kowane alamar allon kewayawa ko wasu abubuwan haɗin gwiwa. Idan kuna aiki a cikin madaidaicin yanayi, yi amfani da madaurin wuyan hannu lokacin da ake haɗa tsarin.
Taɓa alamar allon kewayawa na iya gurɓata shi da mai wanda zai iya lalata juriyar keɓewa tsakanin hanyoyin da'ira, yana da illa ga ma'auni. Yana da kyau a yi amfani da allon kewayawa kawai ta gefuna.
Tsare-tsare mai tsauri na jihar
Don hana lalacewa ga tsarin, kar a wuce iyakar ƙayyadaddun matakin siginar ƙirar. Nauyin mai amsawa yana buƙatar voltagda clamping don inductive lodi da ƙayyadaddun ƙayyadaddun ƙayyadaddun kayan aiki.
Na'urori masu iyakancewa na yanzu na iya zama resistors ko fiusi mai sake saitawa. ExampFis ɗin sake saitawa sune polyfuses da ingantaccen yanayin zafin jiki (PTC) thermistors. Voltagda clampNa'urorin da za su iya zama Zener diodes, bututun fitar da iskar gas, da diodes TVS bidirectional.
Iyakance amfani da resistor
Cabling da na'urorin gwaji na iya ba da gudummawa mai yawa ga hanyar sigina. Ƙirar wutar lantarki na iya wuce gona da iri kuma yana buƙatar na'urori masu iyakancewa na yanzu. Manyan magudanar ruwa na iya gudana yayin da incandescent lamps, Transformer da makamantan na'urori an fara ƙarfafa su kuma yakamata a yi amfani da iyakancewar yanzu.
Yi amfani da resistors masu iyakancewa na yanzu don iyakance inrush na yanzu wanda kebul da ƙarfin DUT ke haifarwa.Clamp voltage
Voltagda clampya kamata a yi amfani da shi idan kafofin wutar lantarki suna da damar ƙirƙirar voltagda spikes.
Nau'o'in inductive kamar relay coils da solenoids yakamata su sami voltagda clampHaɗa nauyin nauyi don murkushe ƙarfin ƙarfin lantarki. Ko da na wucin gadi voltages wanda aka samar a nauyin yana iyakance a na'urar, voltages za a samar ta hanyar inductance idan wayoyi masu tsayi suna da tsawo. Rike wayoyi gajarta yadda zai yiwu don rage inductance.
Yi amfani da diode da Zener diode don clamp voltage spikes da aka samar ta hanyar ƙwaƙƙwaran ƙarfin lantarki a cikin na'urar relay. Yi amfani da bututun fitar da iskar gas don hana spikes daga lalacewa ta hanyar gudu. Idan na'urar da ke ƙarƙashin gwaji (DUT) ta canza jihohin rashin ƙarfi yayin gwaji, igiyoyi masu yawa ko voltages na iya bayyana a ƙaƙƙarfan watsa labarai na jihar. Idan DUT ta gaza saboda ƙarancin rashin ƙarfi, ana iya buƙatar iyakancewa na yanzu. Idan DUT ta gaza saboda babban rashin ƙarfi, voltagda clampana iya buƙata.

Daidaitawa

Hanyoyi masu zuwa suna daidaita na'urori masu auna zafin jiki akan 7710 plug-in modules.
GARGADI
Kada kayi ƙoƙarin yin wannan hanya sai dai idan kun ƙware, kamar yadda nau'ikan masu amfani da samfur suka bayyana a cikin matakan tsaro. Kada ku yi waɗannan hanyoyin sai dai idan kun cancanci yin haka. Rashin ganewa da kiyaye matakan tsaro na yau da kullun na iya haifar da rauni ko mutuwa.
Saitin daidaitawa
Don daidaita tsarin, kuna buƙatar kayan aiki masu zuwa.

• Ma'aunin zafin jiki na dijital: 18 °C zuwa 28 °C ± 0.1 °C
• Keithley 7797 Calibration/Extender Board

Haɗin allo Extender
An shigar da allo mai tsawo a cikin DAQ6510. An haɗa na'urar zuwa allon mai shimfiɗa a waje don hana dumama tsarin yayin daidaitawa.
Don yin haɗin haɗin allo mai tsawo:

1. Cire wuta daga DAQ6510.
2. Shigar da allo mai tsawo a cikin Ramin 1 na kayan aiki.
3. Toshe tsarin a cikin mahaɗin P1000 a bayan hukumar 7797 Calibration/Extender Board.

Daidaita yanayin zafi

NOTE
Kafin daidaita yawan zafin jiki akan 7710, cire wuta daga tsarin na tsawon awanni biyu don ba da damar kewayawar module ta huce. Bayan kunna wuta yayin aikin daidaitawa, kammala aikin da sauri don rage dumama tsarin da zai iya shafar daidaiton daidaitawa. Da farko ba da izinin DAQ6510 don dumama aƙalla sa'a ɗaya tare da shigar da katin daidaitawa na 7797. Idan daidaita nau'ikan kayayyaki da yawa a jere, kashe DAQ6510, da sauri zazzage 7710 ɗin da aka daidaita a baya, sannan toshe na gaba. Jira mintuna uku kafin yin calibrating na 7710.

Saita daidaitawa:

1. Kunna wutar DAQ6510.
2. Don tabbatar da kayan aikin yana amfani da saitin umarni na SCPI, aika: *LANG SCPI
3. A gaban panel, tabbatar da an saita TERMINALS zuwa REAR.
4. Bada minti uku don daidaita yanayin zafi.

Don daidaita yanayin zafi:

1. Daidai auna da rikodin yanayin sanyi na saman 7710 module a tsakiyar module tare da ma'aunin zafi da sanyio.
2. Buɗe daidaitawa ta hanyar aikawa:
   : CALibration: KARE: CODE "KI006510"
3. Calibrate zafin jiki akan 7710 tare da umarni mai zuwa, inda shine ana auna zafin yanayin sanyi a mataki na 1 na sama:
   :CALibration:KARE:CARD1:STEP0
4. Aika waɗannan umarni masu zuwa don adanawa da kulle gyare-gyare:
   :CALibration:KARE:CARD1:SAVE
   : KYAUTA: KARIYA: KATIN 1: LOCK

Kurakurai da zasu iya faruwa yayin daidaitawa
Idan kurakuran daidaitawa sun faru, ana ba da rahotonsu a cikin log ɗin taron. Kuna iya sakeview taron log daga gaban panel na
kayan aikin ta amfani da SCPI:SYSTem:EVENTlog:Next? umarni ko TSP eventlog.next()
umarni.
Kuskuren da zai iya faruwa akan wannan rukunin shine 5527, Kuskuren Cold Cal na zafin jiki. Idan wannan kuskuren ya faru, tuntuɓi Keithley
Kayan aiki. Koma zuwa sabis na masana'anta (a shafi na 24).

Ma'aikatar masana'anta

Don dawo da DAQ6510 naku don gyara ko daidaitawa, kira 1-800-408-8165 ko cika fom a tek.com/services/repair/rma-request. Lokacin da kake buƙatar sabis, kana buƙatar lambar serial da firmware ko sigar software na kayan aikin.
Don ganin matsayin sabis na kayan aikin ku ko don ƙirƙirar ƙimar farashin da ake buƙata, je zuwa tek.com/service-quote.

Kariyar tsaro

Ya kamata a kiyaye waɗannan matakan tsaro masu zuwa kafin amfani da wannan samfur da duk wani kayan aiki mai alaƙa. Ko da yake wasu kayan kida da na'urorin haɗi yawanci za a yi amfani da su tare da voltage, akwai yanayi inda yanayi mai haɗari zai iya kasancewa.
An yi nufin wannan samfurin don amfani da ma'aikatan da suka gane haɗarin girgiza kuma sun saba da matakan tsaro da ake buƙata don guje wa yiwuwar rauni. Karanta kuma bi duk shigarwa, aiki, da bayanin kulawa a hankali kafin amfani da samfurin.
Koma zuwa takaddun mai amfani don cikakkun ƙayyadaddun samfur. Idan an yi amfani da samfurin ta hanyar da ba a bayyana ba, kariya ta garantin samfurin na iya lalacewa.
Nau'in masu amfani da samfur sune:
Ƙungiyar da ke da alhakin ita ce mutum ko ƙungiyar da ke da alhakin amfani da kula da kayan aiki, don tabbatar da cewa kayan aiki suna aiki a cikin ƙayyadaddun bayanai da iyakokin aiki, da kuma tabbatar da cewa masu aiki sun sami horo sosai. Masu aiki suna amfani da samfurin don aikin da aka nufa. Dole ne a horar da su kan hanyoyin aminci na lantarki da kuma amfani da kayan aiki da kyau. Dole ne a kiyaye su daga girgiza wutar lantarki da tuntuɓar da'irori masu haɗari masu haɗari.
Ma'aikatan kulawa suna yin hanyoyin yau da kullun akan samfurin don ci gaba da aiki da kyau, misaliample, saita layin voltage ko maye gurbin kayan amfani. An bayyana hanyoyin kiyayewa a cikin takardun mai amfani. Hanyoyin sun bayyana a sarari idan mai aiki na iya yin su. In ba haka ba, ma'aikatan sabis ne kawai za su yi su.
Ana horar da ma'aikatan sabis don yin aiki akan da'irar raye -raye, yin ƙa'idodin aminci, da gyara samfura. Ma'aikatan sabis da aka horar da kyau ne kawai za su iya yin shigarwa da hanyoyin sabis.
An ƙera samfuran Keithley don amfani tare da siginar lantarki waɗanda ke auna, sarrafawa, da haɗin I/O na bayanai, tare da ƙarancin wuce gona da iri.tages, kuma ba dole ba ne a haɗa kai tsaye zuwa manyan voltage ko zuwa voltage kafofin da high transient overvoltage.
Nau'i na Aunawa II (kamar yadda aka yi nuni a cikin IEC 60664) haɗin haɗin gwiwa yana buƙatar kariya don babban wuce gona da iri.tages sau da yawa yana haɗuwa da manyan hanyoyin haɗin AC na gida. Ana iya haɗa wasu kayan aunawa na Keithley zuwa na'urorin sadarwa. Waɗannan kayan aikin za a yiwa alama a matsayin nau'i na II ko mafi girma.
Sai dai idan an ba da izini a sarari a cikin ƙayyadaddun ƙayyadaddun bayanai, jagorar aiki, da alamun kayan aiki, kar a haɗa kowane kayan aiki zuwa na'urorin sadarwa. Yi taka tsantsan lokacin da haɗarin girgiza ya kasance. m voltage yana iya kasancewa akan jacks masu haɗin kebul ko kayan aikin gwaji.
Cibiyar Matsayin Ƙasa ta Amirka (ANSI) ta bayyana cewa akwai haɗarin girgiza idan voltage matakan da suka fi 30 V RMS, 42.4 V kololuwa, ko 60 VDC suna nan. Kyakkyawan al'adar aminci ita ce tsammanin wannan mummunan voltage yana nan a kowane da'irar da ba a sani ba kafin aunawa.
Dole ne a kiyaye masu sarrafa wannan samfur daga girgizar lantarki a kowane lokaci. Dole ne hukumar da ke da alhakin tabbatar da cewa an hana masu aiki damar shiga da/ko rubewa daga kowane wurin haɗi. A wasu lokuta, haɗin kai dole ne a fallasa su ga yuwuwar hulɗar ɗan adam. Dole ne a horar da masu sarrafa samfura a cikin waɗannan yanayi don kare kansu daga haɗarin girgizar lantarki. Idan da'irar tana da ikon aiki a sama ko sama da 1000 V, babu wani ɓangaren da'irar da'irar da za a iya fallasa.
Don iyakar aminci, kar a taɓa samfurin, igiyoyin gwaji, ko duk wani kayan aiki yayin da ake amfani da wutar lantarki a kewaye da ke ƙarƙashin gwaji. KADA KA cire wuta daga tsarin gwajin gabaɗaya kuma fitar da duk wani capacitors kafin haɗawa ko cire haɗin igiyoyi ko masu tsalle, sakawa ko cire katunan canjawa, ko yin canje-canje na ciki, kamar sakawa ko cire masu tsalle.
Kada ku taɓa kowane abu wanda zai iya ba da hanya ta yanzu zuwa gefen gama gari a ƙarƙashin gwaji ko layin wutar (ƙasa). Koyaushe yi ma'aunai tare da busassun hannuwa yayin da kuke tsaye a kan busasshe, rufin da aka rufe wanda zai iya jure ƙarartage ana aunawa.
Don aminci, dole ne a yi amfani da kayan aiki da na'urorin haɗi daidai da umarnin aiki. Idan ana amfani da kayan aiki ko na'urorin haɗi ta hanyar da ba a ƙayyade a cikin umarnin aiki ba, kariyar da kayan aiki ke bayarwa na iya lalacewa.
Kada ku wuce matsakaicin matakan sigina na kayan aiki da na'urorin haɗi. An bayyana madaidaicin matakan sigina a cikin ƙayyadaddun bayanai da bayanan aiki kuma ana nuna su akan faifan kayan aiki, fa'idodin ƙayyadaddun gwaji, da katunan canza sheka. Dole ne a yi amfani da haɗin chassis kawai azaman haɗin garkuwa don auna da'irori, BA azaman haɗin ƙasa mai tsaro (ƙasa mai aminci).
The GARGADI shiga cikin takaddun mai amfani yana bayyana haɗarin da zai iya haifar da rauni na mutum ko mutuwa. Koyaushe karanta bayanin haɗin gwiwa a hankali kafin aiwatar da aikin da aka nuna.
The HANKALI shiga cikin takaddun mai amfani yana bayyana haɗarin da zai iya lalata kayan aiki. Irin wannan lalacewa na iya
ɓata garanti.
The HANKALI tafiya tare da alamar a cikin takaddun mai amfani yana bayyana haɗari waɗanda zasu iya haifar da matsakaici ko ƙananan rauni ko lalata kayan aiki. Koyaushe karanta bayanan haɗin gwiwa sosai kafin aiwatar da hanyar da aka nuna.
Lalacewar kayan aiki na iya ɓata garanti.
Kada a haɗa kayan aiki da na'urorin haɗi da mutane.
Kafin yin kowane gyara, cire haɗin igiyar layin da duk igiyoyin gwaji.
Don kiyaye kariya daga girgiza wutar lantarki da wuta, abubuwan da za a maye gurbinsu a cikin da'irori - gami da na'urar canza wutar lantarki, jagorar gwaji, da jacken shigar da bayanai - dole ne a sayi su daga Keithley. Za'a iya amfani da daidaitattun fis tare da izinin amincin ƙasa idan ƙima da nau'in iri ɗaya ne. Za'a iya maye gurbin igiyar wutar lantarki ta mains da aka bayar tare da kayan aiki kawai da igiyar wuta mai ƙima. Za'a iya siyan sauran abubuwan da basu da alaƙa da aminci daga wasu masu kaya muddin suna
sun yi daidai da ainihin ɓangaren (lura cewa zaɓaɓɓun sassa yakamata a siya ta Keithley kawai don kiyaye daidaito da aikin samfur). Idan ba ku da tabbas game da amfani da kayan maye, kira ofishin Keithley don bayani.
Sai dai in ba a lura da wani takamaiman adabi na musamman ba, an ƙera kayan Keithley don yin aiki a cikin gida kawai, a cikin muhallin da ke tafe: Tsayin a ko ƙasa da 2,000 m (6,562 ft); zazzabi 0 ° C zuwa 50 ° C (32 ° F zuwa 122 ° F); da matakin gurbata yanayi 1 ko 2.
Don tsaftace kayan aiki, yi amfani da zane dampan haɗa shi da ruwa mai narkewa ko mai laushi, mai tsabtace ruwa. Tsaftace waje na kayan aikin kawai. Kada a yi amfani da mai tsabtace kai tsaye ga kayan aiki ko ba da damar ruwa ya shiga ko ya zube a kan kayan aikin. Samfuran da suka ƙunshi allon kewaye ba tare da akwati ko shasi (misali, hukumar siyan bayanai don shigarwa cikin kwamfuta) ba za su taɓa buƙatar tsaftacewa ba idan aka sarrafa su bisa ga umarnin. Idan hukumar ta gurɓata kuma aikin ya shafi aiki, yakamata a mayar da hukumar zuwa masana'anta don tsaftacewa/dacewa.
Yin bita na kiyaye tsaro har zuwa Yuni 2018.

Takardu / Albarkatu

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

Magana

• Manual mai amfani