7710 Multiplexer Module
MirayiridzoMuenzaniso 7710 Multiplexer Module
Mirayiridzo yekushandisa neDAQ6510
Keithley Zviridzwa
28775 Aurora Mugwagwa
Cleveland, Ohio 44139
1-800-833-9200
tek.com/keithley

Nhanganyaya

Iyo 7710 20-channel Solid-state Differential Multiplexer ine Automatic Cold Junction Compensation (CJC) module inopa 20 chiteshi che 2-pole kana gumi chiteshi che 10-pole relay input inogona kugadzirwa semabhanga maviri akazvimirira evazhinji. Iyo relays inzvimbo yakasimba, inopa hupenyu hurefu uye yakaderera kuchengetedza. Yakanakira kudhiza data kwenguva refu uye yekuda maapplication ekumhanya.
Mufananidzo 1: 7710 20-Channel Differential Multiplexer Module Chinhu chinotakurwa chinogona kusiyana kubva pamufananidzo uri pamufananidzo.
Iyo 7710 inosanganisira zvinotevera maficha:

• Inokurumidza-inoshanda, yehupenyu hurefu-yakasimba-state relays
• DC uye AC voltagchiyero
• Maviri-waya kana mana-waya kuramba kuyerwa (otomatiki pairs relays yechina-waya zviyero)
• Tembiricha application (RTD, thermistor, thermocouple)
• Yakavakirwa-mukati inotonhora junction referensi yetembiricha ye thermocouple
• Screw terminal connections

CHERECHEDZA
Iyo 7710 inogona kushandiswa neiyo DAQ6510 Data Acquisition uye Multimeter System.
Kana uri kushandisa iyi switching module ine 2700, 2701, kana 2750, ndapota ona Model 7710 Multiplexer.
Kadhi Mushandisi Gwaro, Keithley Instruments PA-847.

Con nections

Screw terminals pane switching module inopihwa yekubatanidza kune mudziyo uri muyedzo (DUT) uye wekunze wedunhu. Iyo 7710 inoshandisa nekukurumidza-kudimbura zvivharo zvekupedzisira. Iwe unogona kuita zvinongedzo kune terminal block kana yabviswa kubva module. Aya materminal blocks akatemerwa 25 anobatana uye anodimbura.
YAMBIRO
Maitirwo ekubatanidza uye wiring mugwaro rino anoitirwa kuti ashandiswe nevashandi vanokwanisa chete, sekutsanangurwa kwazvinoitwa nemhando dzevashandisi vezvigadzirwa muChengetedzo dzekuchengetedza (papeji 25). Usaite maitiro aya kunze kwekunge akakodzera kuita kudaro. Kutadza kuziva nekucherekedza kuchengetedzwa kwakajairika kunogona kukonzera kukuvara kana kufa.
Iri rinotevera ruzivo rinotsanangura maitiro ekuita kubatanidza kune switching module uye kutsanangura chiteshi dhizaini. Rogi yekubatanidza inopihwa iyo iwe yaunogona kushandisa kurekodha yako yekubatanidza.
Wiring maitiro
Shandisa maitiro anotevera kugadzira kubatanidza kune 7710 module. Gadzira zvese zvinongedzo uchishandisa saizi chaiyo waya (kusvika 20 AWG). Kuti uwedzere kuita system, tambo dzese dzekuyera dzinofanira kunge dziri pasi pemamita matatu. Wedzera simbi yekuwedzera yakatenderedza harness yevoltagiri pamusoro pe42 VPEAK.
YAMBIRO
Yese wiring inofanirwa kuyerwa kune yakanyanya voltage mu system. For example, kana 1000 V inoshandiswa kune zviteshi zvepamberi zvechiridzwa, switching module wiring inofanira kurongerwa 1000 V. Kukundikana kuziva nekucherechedza maitiro ekuchengetedzwa kwemaitiro kunogona kukonzera kukuvara kwemunhu kana kufa.
Zvishandiso zvinodiwa:

• Flat-blade screwdriver
• Tsono-mhino pliers
• Zvisungo zvetambo

Kuisa waya iyo 7710 module:

1. Ita shuwa kuti simba rese raburitswa kubva ku7710 module.
2. Uchishandisa screwdriver, shandura sikururu yekupinda kuti uvhure uye uvhure kavha, sezvakaratidzwa mumufananidzo unotevera.
   Mufananidzo 2: Screw terminal yekuwana
3. Kana zvichidikanwa, bvisa yakakodzera nekukurumidza-dimbura terminal block kubva module.
   a. Isa flat-head screwdriver pasi pechibatanidza uye zvinyoronyoro sundira kumusoro kuti usunungure, sezvinoratidzwa mumufananidzo unotevera.
   b. Shandisa tsono-mhino pliers kukwevera chinobatanidza chakananga kumusoro.
   KUCHENJERA
   Usazunguze chibatanidza kubva kune rumwe rutivi kuenda kune rumwe. Kukuvadzwa kwepini kunogona kukonzera.
   Mufananidzo 3: Maitiro akakodzera ekubvisa terminal blocks   
4. Uchishandisa diki-flat-blade screwdriver, sunungura zvigadziriso zvekupedzisira uye isa waya sezvinodiwa. Mufananidzo unotevera unoratidza kubatana, kusanganisira kubatanidzwa kune kunobva uye pfungwa.
   Mufananidzo 4: Screw terminal chiteshi mazita
5. Batanidza terminal block mune module.
6. Waya nzira panzira yewaya uye chengetedza nematambo etambo sezvakaratidzwa. Mufananidzo unotevera unoratidza kubatana kune chiteshi 1 uye 2.
   Mufananidzo 5: Wire dressing
7. Zadza kopi yerogi yekubatanidza. Ona chinyorwa chekubatanidza (papeji 8).
8. Vhara iyo screw terminal yekuvhara chivharo.
9. Uchishandisa screwdriver, dzvanya mune screw yekupinda wotendeuka kuti uvhare chivharo.

Module configuration

Iyi inotevera nhamba inoratidza yakareruka schematic ye7710 module. Sezvinoratidzwa, iyo 7710 ine nzira dzakaiswa mumapoka maviri emabhangi egumi (10 chiteshi chese). Backplane yekuparadzaniswa inopihwa kune yega yega bhangi. Bhangi rega rega rinosanganisira yakaparadzana inotonhora junction referensi mapoinzi. Bhengi rekutanga rine migero 20 kusvika ku1, nepo bhanga rechipiri rine migero 10 kusvika 11. Imwe neimwe chiteshi che20-channel multiplexer module inosungirirwa neyakasiyana mapeji eHI/LO achipa zvizere ari oga.
Kubatanidza kuDMM mabasa anopiwa kuburikidza nemodule backplane yekubatanidza.
Zviteshi 21, 22, uye 23 zvinogadziriswa otomatiki nechiridzwa kana uchishandisa system chiteshi kushanda.
Paunenge uchishandisa system chiteshi mashandiro e4-waya zviyero (kusanganisira 4-waya ohms, RTD tembiricha, Ratio, uye Channel Avhareji), nzira dzakapetwa sezvizvi:

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

CHERECHEDZA
Zviteshi 21 kusvika 23 mune ino schematic inoreva mazita anoshandiswa kudzora uye kwete chaiwo anowanikwa chiteshi. Kuti uwane rumwe ruzivo, tarisa kune chiridzwa referensi bhuku.
Mufananidzo 6: 7710 chirongwa chakareruka

Yakajairika kubatana

Anotevera examples show yakajairika wiring yekubatanidza kune anotevera marudzi emayero:

• Thermocouple
• Maviri-waya kuramba uye thermistor
• Ina-waya kuramba uye RTD
• DC kana AC voltage

Connection log

Iwe unogona kushandisa tafura inotevera kurekodha yako yekubatanidza ruzivo.
Yekubatanidza log ye7710

Channel		Color	Tsanangudzo
Kadhi Source	H
	L
Card Sense	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

Installation

Usati washandisa chiridzwa chine switching module, simbisa kuti switching module yakaiswa nemazvo uye masiruru anokwirisa akasungirirwa zvakasimba. Kana zvikwiriso zvekusungirira zvisina kunyatsobatanidzwa, njodzi yemagetsi inogona kunge iripo.
Kana iwe uri kuisa maviri ekuchinja module, zviri nyore kuisa switching module mu slot 2 kutanga, wozoisa yechipiri switching module mu slot 1.
CHERECHEDZA
Kana iwe uine Keithley Instruments Model 2700, 2701, kana 2750 chiridzwa, unogona kushandisa yako iripo switching module muDAQ6510. Tevedza mirairo iri mugwaro remidziyo yako yepakutanga kuti ubvise module kubva pachiridzwa, wobva washandisa mirairo inotevera kuiisa muDAQ6510. Iwe haufanire kubvisa wiring kune module.
CHERECHEDZA
Kune vashandisi vasina ruzivo, zvinokurudzirwa kuti usabatanidze mudziyo uri muyedzo (DUT) uye wekunze wedunhu kune switching module. Izvi zvinokutendera iwe kurovedza padhuze uye kuvhurika mashandiro pasina njodzi inosanganisirwa nehupenyu bvunzo maseketi. Iwe unogona zvakare kuseta pseudocards kuti uedze nekuchinja. Tarisa ku "Pseudocards" muModel DAQ6510 Data Acquisition uye Multimeter System Reference Manual kuti uwane ruzivo rwekugadzirisa pseudocards.
YAMBIRO
Kudzivirira kuvhunduka kwemagetsi kunogona kukonzera kukuvara kana kufa, usambofa wakabata switching module ine simba rinoiswa pairi. Usati waisa kana kubvisa switching module, ita shuwa kuti chiridzwa chakadzimwa uye chakabviswa kubva kumagetsi emutsara. Kana iyo switching module yakabatana neDUT, ita shuwa kuti simba rabviswa kubva kune ese ekunze redunhu.
YAMBIRO
Slot zvivharo zvinofanirwa kuisirwa pane zvisina kushandiswa slots kudzivirira kusangana nemunhu ne-high-voltage matunhu. Kutadza kuziva nekucherekedza mwero wedziviriro dzekuchengetedza kunogona kukonzera kukuvara kwemunhu kana kufa nekuda kwekuvhunduka kwemagetsi.
KUCHENJERA
Usati waisa kana kubvisa switching module, ita shuwa kuti DAQ6510 simba rakadzimwa uye rakabviswa kubva mumutsara simba. Kutadza kutevedzera kunogona kukonzera kushanda kwakashata uye kurasikirwa kwedata mundangariro.
Midziyo inodikanwa:

• Medium flat-blade screwdriver
• Pakati nepakati Phillips screwdriver

Kuisa switching module muDAQ6510:

1. Dzima iyo DAQ6510.
2. Bvisa tambo yemagetsi kubva patsime remagetsi.
3. Bvisa tambo yemagetsi uye chero dzimwe tambo dzakabatanidzwa kune reshure panhi.
4. Rongedza iyo DAQ6510 saka iwe wakatarisana nekumashure.
5. Shandisa screwdriver kubvisa slot cover screws uye cover plate. Chengetedza ndiro uye screws kuti ushandise mune ramangwana.
6. Iine chivharo chepamusoro cheiyo switching module yakatarisa kumusoro, tsvedza iyo switching module mune slot.
7. Dzvanya iyo switching module mune yakasimba kuti uve nechokwadi chekuti switching module yekubatanidza yakabatana neDAQ6510 yekubatanidza.
8. Shandisa screwdriver kuti usimbise maviri anokwirisa screws kuchengetedza switching module kune mainframe. Usaomese.
9. Batanidza tambo yemagetsi uye chero mamwe tambo.

Bvisa switching module

CHERECHEDZA
Usati wabvisa switching module kana kutanga chero kuyedzwa, ita shuwa kuti ese marelay akavhurika. Sezvo mamwe mareyi angave akavharika akavharwa, iwe unofanirwa kuvhura ese marelay usati wabvisa switching module kuti uite ma connections. Pamusoro pezvo, kana iwe ukadonhedza yako switching module, zvinokwanisika kuti mamwe mareyi avhare akavharwa.
Kuti uvhure ese machannel relay, enda kuCHANNEL swipe sikirini. Sarudza Vhura Zvose.
YAMBIRO
Kudzivirira kuvhunduka kwemagetsi kunogona kukonzera kukuvara kana kufa, usambofa wakabata switching module ine simba rinoiswa pairi. Usati waisa kana kubvisa switching module, ita shuwa kuti DAQ6510 yakadzimwa uye yakabviswa pamagetsi emutsara. Kana iyo switching module yakabatana neDUT, ita shuwa kuti simba rabviswa kubva kune ese ekunze redunhu.
YAMBIRO
Kana kadhi slot ikasashandiswa, unofanira kuisa mavhavha evhavha kudzivirira kusangana nemunhu ane high voltage matunhu. Kutadza kuisa zvivharo zvinopinza zvinogona kukonzera kuti munhu aonekwe kune njodzi voltages, izvo zvinogona kukonzera kukuvara kana kufa kana ukabatwa.
KUCHENJERA
Usati waisa kana kubvisa switching module, ita shuwa kuti DAQ6510 simba rakadzimwa uye rakabviswa kubva mumutsara simba. Kutadza kutevedzera kunogona kukonzera kushanda kwakashata uye kurasikirwa kwedata mundangariro.
Midziyo inodikanwa:

• Medium flat-blade screwdriver
• Pakati nepakati Phillips screwdriver

Kubvisa switching module kubva kuDAQ6510:

1. Dzima iyo DAQ6510.
2. Bvisa tambo yemagetsi kubva patsime remagetsi.
3. Bvisa tambo yemagetsi uye chero dzimwe tambo dzakabatanidzwa kune reshure panhi.
4. Rongedza iyo DAQ6510 saka iwe wakatarisana nekumashure.
5. Shandisa screwdriver kuti usunungure zvikwiriso zvinosungirira zvinochengetedza switching module kune chiridzwa.
6. Nyatsobvisa switching module.
7. Isa slot plate kana imwe switching module mune isina chinhu slot.
8. Batanidza tambo yemagetsi uye chero mamwe tambo.

Mirayiridzo yekushandisa

KUCHENJERA
Usati waisa kana kubvisa 7710 module, ita shuwa kuti DAQ6510 simba rakadzimwa uye rakabviswa pamagetsi emutsara. Kutadza kutevedzera kunogona kukonzera kushanda kwakashata uye kurasikirwa kwedata kubva ku7710 memory.
KUCHENJERA
Kudzivirira kupisa kana kukuvadza kune 7710 switching module relays, usambopfuure anotevera epamusoro masaini mazinga pakati peapi maviri ekuisa kana chassis: Chero chiteshi kune chero chiteshi (1 kusvika 20): 60 VDC kana 42 VRMS, 100 mA switched, 6 W, 4.2 VA yakawanda.
Usapfuure zvakatemwa zveiyo 7710. Tarisa kune zvakatemwa mudhetabheti. Kutadza kuziva nekucherekedza kuchengetedzwa kwakajairika kunogona kukonzera kukuvara kana kufa.
YAMBIRO
Kana 7710 module yaiswa muDAQ6510, yakabatana kumberi nekumashure mapipu uye mamwe mamodule ari musystem kuburikidza nechiridzwa chekumashure. Kudzivirira kukuvadza iyo 7710 module uye kudzivirira kusikwa kwenjodzi yekuvhundutsa, iyo yese test system nezvose zvayo zvinopinda zvinofanirwa kudzikiswa kusvika pa60 VDC (42 VRMS). Kutadza kuziva nekucherekedza kuchengetedzwa kwakajairika kunogona kukonzera kukuvara kana kufa. Tarisa kune zvinyorwa zvezviridzwa zvemirairo yekushandisa.
YAMBIRO
Iyi switching module haitsigire zviyero zvazvino. Kana chiridzwa chine TERMINALS switch set kuti REAR uye uri kushanda neslot ine iyi switching module, iyo AC, DC, uye digitize mabasa aripo haawanikwe. Iwe unogona kuyera ikozvino uchishandisa pani yekumberi kana kushandisa imwe slot ine switching module inotsigira iyo AC, DC, uye digitize zviyero zvazvino.
Kana iwe ukashandisa mirairo iri kure kuedza kuyera ikozvino paunenge uchigadzira chiteshi, kukanganisa kunodzorerwa.
Kurumidza kuongorora uchishandisa 7710 module ine DAQ6510 mainframe
Iyi inotevera SCPI chirongwa chinoratidza kushandisa 7710 module uye DAQ6510 mainframe kuwana nekukurumidza scanning. Inoshandisa WinSocket control kutaurirana ne7710 mainframe.

DAQ6510 kana pseudocode	Command	Tsanangudzo
Pseudocode	int scanCnt = 1000	Gadzira shanduko kuti ubate kuverenga kuverenga
	int sampleCnt	Gadzira shanduko kubata iyo yakazara sample count (nhamba yose yekuverenga)
	int chanCnt	Gadzira chinosiyanisa kubata chiteshi kuverenga
	int actualRdgs	Gadzira shanduko kuti ubate kuverenga chaiko kuverenga
	tambo rcvBuffer	Gadzira tambo buffer kuti ubate kuverenga kwakatorwa
	t imer1 . kutanga ()	Tanga chibatiso chenguva kubatsira kutora nguva yadarika
DAQ6510	• RST	Isa chiridzwa munzvimbo inozivikanwa
	FOMU: DATA ASCII	Fomati data setambo yeASCII
	ROUT: SCAN: COUN : SCAN scanCnt	Isa scan count
	FUNC 'VOLT:DC' , (@101:120)	Seta basa kuDCV
	VOLT:RANG 1, (@101:120)	Isa iyo yakatarwa chiyero pa1 V
	VOLT: AVER: STAT OFF, (@101:120)	Dzima nhamba dzekumashure
	DISP : VOLT: DIG 4, (@101:120)	Seta pamberi kuratidza manhamba mana akakosha
	VOLT :NPLC 0.0005, (@101:120)	Seta inokurumidza NPLC inogoneka
	VOLT:LINE:SYNC OFF, (@101:120)	Dzima kuwiriranisa
	VOLT : AZER: STAT OFF, (@101:120)	Dzima auto zero
	CALC2 :VOLT :LIM1 :STAT OFF, (@101:120)	Dzima miyedzo
	CALC2 :VOLT :LIM2 :STAT OFF, (@101:120)
	ROUT : SCAN : INT 0	Gadzirisa nguva ye trigger pakati pema scan kusvika ku 0 s
	TRAC:CLE	Bvisa bhavha yekuverenga
	DISP:LIGH:STAT OFF	Dzima chiratidziro
	ROUT :SCAN :CRE (@101:120)	Seta scan list
	chanCnt = ROUTe :SCAN:COUNT : STEP?	Bvunza kuwanda kwechiteshi
Pseudocode	sampleCnt = scanCnt • chanCnt	Verenga nhamba yekuverenga kwakaitwa
DAQ6510	INIT	Tanga scan
Pseudocode	nokuti i = 1, i <sampleCnt	Gadzirisa af kana loop kubva pa1 kusvika pasampleCnt . asi siya kuwedzera kwe1 kune gare gare
	kunonoka 500	Kunonoka kwe500 ms kubvumira kuverenga kuwanda
DAQ6510	realRdgs = TRACe: ACTual?	Bvunza kuverenga chaiko kwatorwa
	rcvBuffer = "TRACe:DATA? ini, maRdgs, "defbuf ferl", VERENGA	Bvunza kuverenga kunowanikwa kubva kune kukosha kweRdgs chaiyo
Pseudocode	Kuverenga ("C: \ myData . csv", rcvBuffer)	Nyora zvinyorwa zvakatorwa ku a file. myData.csv. pakombiyuta yepanzvimbo
	i = maRdgs + 1	Kuwedzera i kune inotevera loop pass
	kupera kwe	Pedzisa f kana loop
	timer 1 . mira ()	Misa iyo nguva
	timerl.stop – timerl.start	Verenga nguva yakapfuura
DAQ6510	DISP : LICH :STAT ON100	Batidza chiratidziro zvakare

Ichi chinotevera TSP chirongwa chinoratidza kushandisa 7710 module uye DAQ6510 mainframe kuwana nekukurumidza scanning. Inoshandisa WinSocket control kutaurirana ne7710 mainframe.
-Gadzirisa zvinosiyana kuti zvitariswe panguva yekuongororwa.
scanCnt = 1000
sampleCnt = 0
chanCnt = 0
chaiyoRdgs = 0
rcvBuffer = ""
- Tora nguva yekutangaamp pakuguma-kwe-kumhanya kuenzanisa.
local x = os.clock()
- Gadzirisa chiridzwa uye bvisa bhafa.
reset()
defbuffer1.clear()
-Gadzirisa kuverenga buffer fomati uye gadzira scan scan
format.data = format.ASCII
scan.scancount = scanCnt
-Gadzirisa nzira dzekuongorora dzekadhi mune slot 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 chiratidziro.
display.lightstate = display.STATE_LCD_OFF
- Gadzira scan.
scan.create(“101:120”)
scan.scaninterval = 0.0
chanCnt = scan.stepcount
- Verenga iyo yakazara sample count uye shandisa iyo kukura buffer.
sampleCnt = scanCnt * chanCnt
defbuffer1.capacity = sampleCnt
— Tanga kuongorora.
trigger.model.initiate()
- Loop yekutora uye kudhinda kuverenga.
i = 1
apo ini <= sampLeCnt do
kunonoka (0.5)
myCnt = defbuffer1.n
- CHERECHEDZA: Inogona kuwedzerwa kana kutsiviwa nekunyorera ku USB
printbuffer(i, myCnt, defbuffer1.readings)
ini = myCnt + 1
end
- Batidza chiratidziro zvakare.
display.lightstate = display.STATE_LCD_50
- Kuburitsa nguva yakapfuura.
dhinda(string.format(“Nguva Yakapfuura: %2f\n”, os.clock() – x))

Maitiro ekushanda

Low-ohms zviyero
Pakupokana mune yakajairika renji (> 100 Ω), iyo 2-waya nzira (Ω2) inowanzo shandiswa kuyera ohms.
Kune yakaderera ohms (≤100 Ω), iyo nzira yechiratidzo kuramba munhevedzano neDUT inogona kunge yakakwira zvakakwana kukanganisa kuyerwa. Nokudaro, nzira ye4-waya (Ω4) inofanira kushandiswa kuyera-ohms zviyero. Nhaurirano inotevera inotsanangura miganhu ye2-waya nzira uye advantages ye4-waya nzira.
Nzira mbiri-waya
Zviyero zvekuramba muhuwandu hwemazuva ose (> 100 Ω) zvinowanzoitwa uchishandisa nzira ye-2-waya (Ω2 basa). Ikozvino bvunzo inomanikidzwa kuburikidza nemiedzo inotungamira uye kushorwa kuri kuyerwa (RDUT). Meta inobva yayera voltage kuyambuka kukosha kwekupokana zvinoenderana.
Dambudziko guru ne-2-waya nzira, sekushandiswa kune yakaderera-kupokana kuyerwa ndeye test lead resistance (RLEAD) uye chiteshi kuramba (RCH). Huwandu hwekupokana uku hunowanzogara muhuwandu hwe1.5 kusvika 2.5 Ω.
Naizvozvo, zvinonetsa kuwana chaiwo 2-waya ohms zviyero pazasi pe100 Ω.
Nekuda kwekupikiswa uku, iyo 4-waya nzira inofanirwa kushandiswa kuyerwa kuyerwa ≤100 Ω.
Nzira ina-waya
Iyo 4-waya (Kelvin) yekubatanidza nzira uchishandisa iyo Ω4 basa inowanzo diwa kune yakaderera-ohms kuyerwa.
Iyo 4-waya nzira inodzima mhedzisiro yechiteshi uye bvunzo inotungamira kuramba.
Nekugadziriswa uku, iyo bvunzo yazvino (ITEST) inomanikidzwa kuburikidza nekuyedza kuramba (RDUT) kuburikidza neimwe seti yebvunzo inotungamira (RLEAD2 uye RLEAD3), nepo vol.tage (VM) pachishandiswa chiri kuedzwa (DUT) inoyerwa kuburikidza neseti yechipiri yekutungamira (RLEAD1 neRLEAD4) inonzi pfungwa inotungamira.
Nekugadziriswa uku, kuramba kweDUT kunoverengerwa sezvizvi:
RDUT = VM / ITEST
Ikoko: Ini ndini bvunzo yakatorwa ikozvino uye V ndiyo yakayerwa voltage.
Sezvinoratidzwa mumufananidzo uri muMaximum test lead lead kuramba (papeji 17), iyo yakayerwa voltage (VM) ndiwo musiyano uripo pakati peVSHI neVSLO. Iwo equation pazasi pechifananidzo anoratidza kuti bvunzo inotungamira kuramba uye chiteshi kuramba zvinodzimwa sei kunze kwekuyera maitiro.
Maximum test lead resistance
Iyo yakanyanya bvunzo inotungamira kuramba (RLEAD), kune yakananga 4-waya yekupokana maseru:

• 5 Ω pane inotungamira ye1 Ω
• 10% yerengedzo padanho regumi Ω, 10 Ω, 100 kΩ, uye gumi kΩ mazinga
• 1 kΩ per lead ye100 kΩ, 1 MΩ, 10 MΩ, uye 100 MΩ siyana

Mafungiro:

• Kunenge pasina ikozvino inoyerera muyepamusoro-impedance sense wedunhu nekuda kweiyo yakakwira impedance yevoltmeter (VM). Naizvozvo, voltage inodonha mhiri kweChannel 11 uye bvunzo inotungamira 1 uye 4 haina basa uye inogona kufuratirwa.
• Iyo voltage inodonha mhiri kweChannel 1 Hi (RCH1Hi) uye test lead 2 (RLEAD2) haina kuyerwa nevoltmeter (VM).

RDUT = VM/ITEST
Kupi:

• VM ndiro voltage akapimwa nechiridzwa.
• ITEST ndiyo inogara iripo inotorwa nechiridzwa kuDUT.
• VM = VSHI − VSLO
• VSHI = ITEST × (RDUT + RLEAD3 + RCH1Lo)
• VSLO = ITEST × (RLEAD3 + RCH1Lo)
• VSHI − VSLO = ITEST × [(RDUT + RLEAD3 + RCH1Lo) − (RLEAD3 + RCH1Lo)]
• = ITEST × RDUT
• = VM

Voltage zviyero
Kuramba nzira kunogona kukanganisa zviyero zvakaderera-ohms (ona zviyero zveLow-ohms (papeji 16) kuti uwane rumwe ruzivo). Series nzira kuramba inogona kukonzera kurodha matambudziko eDC voltagzviyero zve 100 V, 10 V, uye 10 mV masanji kana iyo 10 MΩ yekupinda divider inogoneswa. Yakakwira chiratidzo nzira kuramba inogona zvakare kukanganisa AC voltage zviyero pa100 V renji pamusoro pe1 kHz.
Kuisa kurasikirwa
Kurasika kwekuisa isimba rechiratidzo reAC rakarasika pakati pekupinza nekubuda. Kazhinji, sezvo frequency inowedzera, kurasikirwa kwekuisa kunowedzera.
Kune iyo 7710 module, kurasikirwa kwekuisa kunotsanangurwa kune 50 Ω AC siginecha sosi inofambiswa kuburikidza nemodule kuenda ku50 Ω mutoro. Kurasikirwa kwesimba rechiratidzo kunoitika sezvo chiratidzo chinofambiswa nenzira dzechiratidzo chemodule kumutoro. Kurasika kwekuisa kunoratidzwa se dB magnitude pama frequency ataurwa. Izvo zvakatemwa zvekuisa kurasikirwa zvinopihwa mune data sheet.
Sezvo example, funga zvinotevera zvinongedzo zvekuisa kurasikirwa:
<1 dB @ 500 kHz 1 dB kurasika kwekuisa kungangoita 20% kurasikirwa kwesimba rechiratidzo.
<3 dB @ 2 MHz 3 dB kurasika kwekuisa kungangoita 50% kurasikirwa kwesimba rechiratidzo.
Sezvo frequency yechiratidzo ichiwedzera, kurasikirwa kwesimba kunowedzera.
CHERECHEDZA
Kuisa kurasikirwa ukoshi yakashandiswa muex iri pamusoroample inogona kunge isiri iyo chaiyo yekuisa kurasikirwa kweiyo 7710. Iyo chaiyo yekuisa kurasikirwa yekumisikidza inopihwa mudhetabheti.
Crosstalk
Chiratidzo cheAC chinogona kukweverwa mumakwara ari padyo nechiteshi pane 7710 module. Kazhinji, crosstalk inowedzera sezvo frequency inowedzera.
Kune iyo 7710 module, crosstalk inotsanangurwa kune iyo AC siginecha inofambiswa kuburikidza nemodule kusvika ku50 Ω mutoro. Crosstalk inoratidzwa seye dB ukuru pane imwe frequency yakatarwa. Iyo yakatarwa yecrosstalk inopiwa mune dhetabheti.
Sezvo example, fungidzira zvinotevera kutsanangurwa kwecrosstalk:
<-40 dB @ 500 kHz -40 dB inoratidza kuti crosstalk mumatanho ari pedyo i0.01% yechiratidzo cheAC.
Sezvo frequency yechiratidzo ichiwedzera, crosstalk inowedzera.
CHERECHEDZA
The crosstalk values ​​inoshandiswa mune iri pamusoro example inogona kunge isiri iyo chaiyo crosstalk yakatarwa ye7710. Iyo chaiyo crosstalk tsanangudzo inopihwa mudhetabheti.
Heat sink tembiricha zviyero
Kuyera tembiricha ye sink yekupisa muyedzo wakajairika kune system ine tembiricha yekuyera kugona. Nekudaro, iyo 7710 module haigone kushandiswa kana singi yekupisa ichiyangarara pane ine njodzi voltage nhanho (> 60 V). An example yebvunzo yakadaro inoratidzwa pazasi.
Mumufananidzo unotevera, singi yekupisa inoyangarara pa120 V, inova mutsetse voltage ari kuiswa kune +5V regulator.
Chinangwa ndechekushandisa chiteshi 1 kuyera tembiricha yekupisa singi, uye shandisa chiteshi 2 kuyera iyo +5 V inobuda yemutongi. Kuti uwane kupisa kwakanyanya, iyo thermocouple (TC) inoiswa yakanangana neiyo singi yekupisa. Izvi nekusaziva zvinobatanidza iyo inoyangarara 120 V inogona kune iyo 7710 module. Mhedzisiro yacho ndeye 115 V pakati pechiteshi 1 uye chiteshi 2 HI, uye 120 V pakati pechiteshi 1 uye chassis. Aya mazinga anodarika iyo 60 V muganho wemodule, ichigadzira njodzi yekuvhundutsa uye pamwe ichikonzera kukuvadza kune module.
YAMBIRO
Muedzo uri pamufananidzo unotevera unoratidza kuti vhoriyamu ine ngozi seitage inogona kushandiswa nekusaziva kune iyo 7710 module. Mune chero bvunzo panoyangarara voltages> 60 V aripo, unofanira kungwarira kuti usaise vhoriyamu inoyangararatage kune module. Kutadza kuziva nekucherekedza kuchengetedzwa kwakajairika kunogona kukonzera kukuvara kana kufa.
KUCHENJERA
Usashandise 7710 module kuita iyi mhando yebvunzo. Iyo inodarika iyo 60 V muganho kugadzira njodzi yekuvhundutsa uye inogona kukonzera kukuvadza kune module. Kuwedzeredza voltages:
Iyo voltage musiyano pakati peCh 1 neCh 2 HI i115 V.
Iyo voltage musiyano pakati peCh 1 neCh 2 LO (chassis) i120 V.

Module kubata zvidziviriro
Iyo yakasimba state relays inoshandiswa pane 7710 module ndeye static inonzwa michina. Naizvozvo, vanogona kukuvadzwa ne electrostatic discharge (ESD).
KUCHENJERA
Kuti udzivise kukuvadzwa kubva kuESD, ingobata iyo module nemapendero emakadhi. Usabate backplane connector terminals. Paunenge uchishanda neanokurumidza-dimbura zvivharo zvidhinha, usabate chero chedunhu bhodhi traces kana zvimwe zvikamu. Kana uchishanda munzvimbo yakakwira-static, shandisa tambo yechanza yakadzikwa paunenge uchiisa waya module.
Kubata redunhu bhodhi trace kunogona kuisvibisa nemafuta emuviri anogona kushatisa kushomeka kwekuzviparadzanisa pakati penzira dzedunhu, zvichikanganisa zviyero. Itsika yakanaka kubata bhodhi redunhu chete nemapendero aro.
Solid state relay precautions
Kuti udzivise kukuvadzwa kwemodule, usapfuure iyo yakakwira chiratidzo chiyero cheiyo module. Reactive mitoro inoda voltaguye clamping ye inductive mitoro uye kuwedzera ikozvino kudzikisira kune capacitive mitoro.
Zvishandiso zvezvino zvinomisa zvinogona kuve zvinopikisa kana mafusi anogadzikazve. Exampmashoma emafiyuzi anogona kudzoreredzwa mapolyfuse uye yakanaka tembiricha coefficient (PTC) thermistors. Voltaguye clamping zvishandiso zvinogona kuva Zener diodes, gasi discharge machubhu, uye bidirectional TVS diode.
Kumisa resistor kushandiswa
Cabling uye bvunzo zvigadziriso zvinogona kupa yakakura capacitance kunzira yechiratidzo. Inrush currents inogona kunge yakawandisa uye inoda zvazvino zvinomisa michina. Hombe inrush currents anogona kuyerera kana incandescent lamps, transformer uye zvishandiso zvakafanana zvinotanga kupihwa simba uye ikozvino kudzikisira kunofanira kushandiswa.
Shandisa zvazvino zvinomisa resistors kudzikamisa inrush ikozvino inokonzerwa netambo uye DUT capacitance.Clamp voltage
Voltaguye clamping inofanirwa kushandiswa kana masosi emagetsi aine kugona kugadzira kwenguva pfupi voltage spikes.
Inductive mitoro senge relay coils uye solenoids inofanirwa kuve nevoltaguye clampkuyambuka mutoro kudzvinyirira counter electromotive forces. Nyangwe nechinguvana voltages anogadzirwa pamutoro anogumira pachigadzirwa, chenguva pfupi voltages ichagadzirwa ne inductance kana waya dzedunhu dzakareba. Chengetedza waya sepfupi sezvinobvira kuti uderedze inductance.
Shandisa diode uye Zener diode kuclamp voltage spikes anogadzirwa neanopikisa electromotive masimba pane relay coil. Shandisa gasi rekuburitsa chubhu kudzivirira maspike enguva pfupi kubva mukukuvadza relay. Kana mudziyo uri muyedzo (DUT) uchichinja impedance nyika panguva yekuyedzwa, yakawandisa mafungu kana voltages inogona kuoneka pane solid state relay. Kana DUT ikakundikana nekuda kwekudzikama impedance, ikozvino kudzikamisa kunogona kudiwa. Kana DUT ikakundikana nekuda kwekukwira kwakanyanya, voltaguye clampzvinogona kudiwa.

Calibration

Aya anotevera maitiro anogadzirisa tembiricha sensors pane 7710 plug-in modules.
YAMBIRO
Usayedze kuita maitiro aya kunze kwekunge iwe uchikodzera, sekutsanangurwa kwazvinoitwa nemhando dzevashandisi vezvigadzirwa muKuchengetedza kuchengetedza. Usaite maitiro aya kunze kwekunge akakodzera kuita kudaro. Kutadza kuziva nekucherekedza kuchengetedzwa kwakajairika kunogona kukonzera kukuvara kana kufa.
Calibration setup
Kuti uenzanise module, iwe unoda zvinotevera zvishandiso.

• Digital thermometer: 18 °C kusvika 28 °C ±0.1 °C
• Keithley 7797 Calibration/Extender Board

Extender board connections
Iyo extender board yakaiswa muDAQ6510. Iyo module yakabatana kune extender board kunze kudzivirira kupisa kweiyo module panguva yekuenzanisa.
Kugadzira extender board connections:

1. Bvisa simba kubva kuDAQ6510.
2. Isa iyo extender board muSlot 1 yechiridzwa.
3. Batanidza module muP1000 yekubatanidza kumashure kwe7797 Calibration/Extender Board.

Temprerature calibration

CHERECHEDZA
Usati wagadzirisa tembiricha pa7710, bvisa simba kubva mumodule kweinenge maawa maviri kuti ubvumire module yedunhu kutonhora pasi. Mushure mekubatidza simba panguva yekuenzanisa maitiro, pedzisa maitiro acho nekukurumidza sezvinobvira kuti uderedze kupisa kwemodule iyo inogona kukanganisa kurongeka kweiyo calibration. Kutanga bvumidza iyo DAQ6510 kuti idziye kweinenge awa imwe chete ne7797 calibration kadhi yakaiswa. Kana kuenzanisa mamodule akawanda mumutsara, dzima iyo DAQ6510, kurumidza kuburitsa iyo yakamboyerwa 7710, uye plug mune inotevera. Mirira maminetsi matatu usati wagadzirisa 7710.

Gadzirisa calibration:

1. Batidza iyo DAQ6510 simba.
2. Kuti uone kuti chiridzwa chiri kushandisa SCPI command set, tumira: *LANG SCPI
3. Pamberi penzvimbo, tarisa kuti TERMINALS yakaiswa KUREAR.
4. Bvumira maminetsi matatu ekuenzanisa kwekushisa.

Kugadzirisa tembiricha:

1. Nyatsoyera uye rekodha tembiricha inotonhora ye7710 module pamusoro pepakati peiyo module ine dhijitari thermometer.
2. Vhura chiyero nekutumira:
   :CALibration:Yakachengetedzwa:CODE "KI006510"
3. Calibrate tembiricha pane 7710 neinotevera rairo, kupi ndiyo tembiricha inotonhora yekuyera yakayerwa mudanho 1 pamusoro:
   :CALibration:Protected:CARD1:STEP0
4. Tumira iyo inotevera mirairo kuchengetedza uye kuvhara kunze calibration:
   :CALibration:Protected:CARD1:SEVE
   :CALibration:Yakachengetedzwa:CARD1:LOCK

Zvikanganiso zvinogona kuitika panguva yekuenzanisa
Kana zvikanganiso zvecalibration zvikaitika, zvinoshumwa mune regi yechiitiko. Unogona zvakareview irogi yechiitiko kubva pamberi pepaneru ye
chiridzwa nekushandisa SCPI :SYSTem:EVENtlog:NEXT? raira kana iyo TSP eventlog.next()
command.
Iko kukanganisa kunogona kuitika pane ino module ndeye 5527, Temperature Cold Cal kukanganisa. Kana kukanganisa uku kukaitika, bata Keithley
Zviridzwa. Tarisa kuFactory service (papeji 24).

Basa repafekitori

Kuti udzorere DAQ6510 yako yekugadzirisa kana kuenzanisa, fonera 1-800-408-8165 kana kuti zadza fomu racho pa tek.com/services/repair/rma-request. Paunokumbira sevhisi, unoda nhamba ye serial uye firmware kana shanduro yesoftware yechiridzwa.
Kuti uone mamiriro akaita sevhisi yechiridzwa chako kana kugadzira fungidziro yemutengo unodiwa, enda ku tek.com/service-quote.

Kuchengetedza kuchengetedza

Aya anotevera ekuchengetedza ekuchengetedza anofanirwa kucherechedzwa usati washandisa chigadzirwa ichi uye chero chakabatana chiridzwa. Kunyangwe zvimwe zviridzwa uye zvishongedzo zvaiwanzo shandiswa zvisina ngozi voltages, kune mamiriro ezvinhu apo mamiriro ane ngozi angave aripo.
Ichi chigadzirwa chakagadzirirwa kushandiswa nevashandi vanoziva njodzi dzinovhundutsa uye vanoziva nzira dzekuchengetedza dzinodiwa kudzivirira kukuvara kunogona kuitika. Verenga uye uteedzere zvese zvekuisa, kushanda, uye kugadzirisa ruzivo nekungwarira usati washandisa chigadzirwa.
Tarisa kune zvinyorwa zvemushandisi kuti uwane zvizere zvechigadzirwa. Kana chigadzirwa chacho chikashandiswa nenzira isina kutaurwa, dziviriro inopiwa newaranti yechigadzirwa inogona kukanganisa.
Mhando dzevashandisi vezvigadzirwa ndeidzi:
Boka rinotarisira munhu kana boka rine mutoro wekushandiswa nekuchengetedza michina, yekuona kuti mudziyo unoshanda mukati mezvakatemwa uye nemiganhu yekushandisa, uye nekuona kuti vashandisi vakadzidziswa zvakakwana. Vashandi vanoshandisa chigadzirwa kune chinangwa chayo. Vanofanira kudzidziswa maitiro ekuchengetedza magetsi uye kushandiswa kwakakodzera kwechiridzwa. Iwo anofanirwa kuchengetedzwa kubva kumagetsi kuvhunduka uye kusangana neane njodzi mhenyu maseketi.
Vashandi vekuchengetedza vanoita maitiro echigadzirwa kuti chirambe chichishanda nemazvo, semuenzanisoample, kuseta mutsara voltage kana kutsiva zvinhu zvinoshandiswa. Maitiro ekugadzirisa anotsanangurwa muzvinyorwa zvemushandisi. Maitiro acho anotsanangudza zvakajeka kana mushandi anogona kuzviita. Zvikasadaro, ivo vanofanirwa kuitwa chete nevashandi vebasa.
Vashandi vebasa vanodzidziswa kushanda pamasekete ehupenyu, kuisa zvakachengeteka, uye kugadzirisa zvigadzirwa. Vashandi vebasa chete vakarovedzwa vanogona kuita yekumisikidza uye maitiro ebasa.
Zvigadzirwa zveKeithley zvakagadzirirwa kushandiswa nemagetsi masaini ari kuyerwa, kutonga, uye data I/O yekubatanidza, ine yakaderera inopfuura overvol.tages, uye haifanire kunge yakabatana zvakananga kune mains voltage kana kuti voltage masosi ane yakakwira yenguva pfupi yakawandisatages.
Measurement Chikamu II (sezvinorehwa muIEC 60664) kubatanidza kunoda kuchengetedzwa kwepamusoro kwenguva pfupi kudarika.tages inowanzobatanidzwa neyemunharaunda AC mains yekubatanidza. Mamwe maKeithley ekuyeresa zviridzwa anogona kunge akabatana kune mains. Zviridzwa izvi zvichamakwa sechikamu chechipiri kana chepamusoro.
Kunze kwekunge zvabvumidzwa zvakajeka mune zvakatemwa, bhuku rekushandisa, uye zvinyorwa zvezviridzwa, usabatanidza chero chiridzwa kune mains. Chenjerera zvakanyanya kana njodzi yekuvhundutsa iripo. Lethal voltage inogona kunge iripo pane tambo yekubatanidza jacks kana bvunzo zvigadziriso.
IAmerican National Standards Institute (ANSI) inotaura kuti njodzi yekuvhundutsa inovapo kana voltage mazinga makuru kupfuura 30 V RMS, 42.4 V peak, kana 60 VDC aripo. Maitiro akanaka ekuchengetedza kutarisira iro njodzi voltage iripo mune chero isingazivikanwe dunhu isati yayera.
Vashandisi veichi chigadzirwa vanofanirwa kuchengetedzwa kubva kumagetsi kuvhunduka nguva dzese. Mutumbi une mutoro unofanirwa kuona kuti vanoshanda vanodzivirirwa kupinda uye / kana kusungirirwa kubva kunzvimbo dzese dzekubatanidza. Mune zvimwe zviitiko, kubatana kunofanirwa kuratidzirwa kune vanogona kusangana nevanhu. Vashandisi vezvigadzirwa mumamiriro ezvinhu aya vanofanirwa kudzidziswa kuzvidzivirira kubva panjodzi yekuvhunduka magetsi. Kana dunhu racho richikwanisa kushanda kana pamusoro pe1000 V, hapana chikamu chinotenderera chedunhu chinogona kuburitswa.
Kuti uchengetedze zvakanyanya, usabata chigadzirwa, tambo dzekuyedza, kana chero zvimwe zviridzwa apo simba rinoiswa kudunhu riri pasi pekuyedzwa. GARA uchibvisa simba kubva pa test system yese uye bvisa chero capacitor usati wabatanidza kana kubvisa tambo kana jumpers, kuisa kana kubvisa switching cards, kana kuita shanduko mukati, sekuisa kana kubvisa jumpers.
Usabate chero chinhu chinogona kupa nzira yazvino kune yakajairika divi redunhu pasi peyedzo kana simba tambo (pasi) pasi. Gara uchiita zviyero nemaoko akaomeswa wakamira pane yakaoma, yakavharirwa nzvimbo inokwanisa kumira pa voltage ari kuyerwa.
Nekuchengetedza, zviridzwa uye zvishandiso zvinofanirwa kushandiswa zvinoenderana nemirairo yekushanda. Kana zviridzwa kana zvishongedzo zvichishandiswa nenzira isina kutaurwa mumirayiridzo yekushanda, kuchengetedzwa kunopihwa nemidziyo kunogona kukanganisa.
Usapfuure huwandu hwechiratidzo chezviridzwa uye zvishongedzo. Mamiriro ezviratidzo epamusoro anotsanangurwa mune zvakatemwa uye ruzivo rwekushandisa uye anoratidzwa pane zviridzwa mapaneru, bvunzo fixture mapaneru, uye switching makadhi. Chassis chinongedzo chinongofanira kushandiswa senhovo yekubatanidza maseketi ekuyeresa, HERE sepasi rinodzivirira (safety ground).
The YAMBIRO kuenda muzvinyorwa zvemushandisi kunotsanangura njodzi dzinogona kukonzera kukuvara kwemunhu kana kufa. Nguva dzose verenga zvakabatanidzwa ruzivo zvakanyatsonaka usati waita yakaratidzwa maitiro.
The KUCHENJERA musoro muzvinyorwa zvemushandisi unotsanangura njodzi dzinogona kukuvadza chiridzwa. Kukuvadza kwakadaro kunogona
kumisa waranti.
The KUCHENJERA musoro nechiratidzo muzvinyorwa zvemushandisi unotsanangura njodzi dzinogona kukonzera kukuvara kuri pakati nepakati kana kudiki kana kukuvadza chiridzwa. Gara uchiverenga ruzivo rwakabatana nekungwarira usati waita maitiro akaratidzwa.
Kukuvadzwa kwechiridzwa kunogona kuita kuti waranti isashande.
Zvishandiso uye zvishongedzo hazvifanirwe kubatana nevanhu.
Usati waita chero kugadzirisa, cheka tambo yetambo uye tambo dzese dzekuyedza.
Kuti uchengetedze dziviriro kubva kumagetsi emagetsi uye moto, zvinotsiva zvikamu mumasekete makuru - kusanganisira shanduri yemagetsi, inotungamira bvunzo, uye jacks rekuisa - inofanira kutengwa kubva kuKeithley. Mafusi akajairwa ane mvumo yekuchengetedzwa kwenyika anogona kushandiswa kana chiyero nemhando zvakafanana. Iyo mains tambo yemagetsi inobviswa yakapihwa nechiridzwa inogona chete kutsiviwa neyakayerwa yakafanana tambo yemagetsi. Zvimwe zvinhu zvisina hukama nekuchengetedza zvinogona kutengwa kubva kune vamwe vatengesi chero bedzi ivo
zvakaenzana nechikamu chepakutanga (ona kuti zvikamu zvakasarudzwa zvinofanira kutengwa chete kuburikidza neKeithley kuchengetedza kururama uye kushanda kwechigadzirwa). Kana usina chokwadi nezvekushanda kwechimwe chinotsiva, fonera hofisi yeKeithley kuti uwane ruzivo.
Kunze kwekunge zvimwe zvataurwa mune zvigadzirwa-zvakatarwa zvinyorwa, Keithley zviridzwa zvakagadzirirwa kushanda mukati mega chete, munzvimbo inotevera nharaunda: Kureba kana pazasi zviuru zviviri m (2,000 ft); kutonhora 6,562 ° C kusvika 0 ° C (50 ° F kusvika 32 ° F); uye kusvibiswa degree 122 kana 1.
Kuchenesa mudziyo, shandisa jira dampened nemvura deionized kana nyoro, mvura-yakavakirwa yakachena. Chenesa kunze kwechiridzwa chete. Usashandise yakachena yakananga kuchiridzwa kana kubvumira zvinwiwa kupinda kana kudira pachiridzwa. Zvigadzirwa zvinosanganisira redunhu bhodhi isina kesi kana chassis (semuenzaniso, dhata rekutora dhata rekumisikidza mukombuta) haifanire kuda kuchenesa kana ikabatwa zvinoenderana nemirairo. Kana bhodhi rikasvibiswa uye mashandiro akakanganiswa, bhodhi rinofanira kudzorerwa kufekitori kuti rinyatsochenesa / kusevha.
Kudzivirirwa kwekuchengetedza kuchengetedza kubva muna Chikumi 2018.

Zvinyorwa / Zvishandiso

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

References

• User Manual