7710 Multiplexer Module
Cov lus qhiaQauv 7710 Multiplexer Module
Cov lus qhia rau kev siv nrog DAQ6510
Keithley Instruments
28775 Aurora Txoj Kev
Cleveland, Ohio 44139
1-800-833-9200 Ib
ib tek.com/keithley

Taw qhia

Lub 7710 20-channel Solid-state Differential Multiplexer nrog Automatic Cold Junction Compensation (CJC) module muaj 20 raws ntawm 2-ncej lossis 10 raws ntawm 4-ncej relay input uas tuaj yeem teeb tsa ua ob lub tsev txhab nyiaj ywj pheej ntawm multiplexers. Cov relays yog lub xeev ruaj khov, muab lub neej ntev thiab kev saib xyuas qis. Nws yog qhov zoo tagnrho rau kev siv cov ntaub ntawv nkag mus ntev thiab xav tau cov ntawv thov kev kub ceev.
Daim duab 1: 7710 20-Channel Differential Multiplexer Module Cov khoom xa tuaj yuav txawv ntawm cov qauv hauv qab no.
7710 suav nrog cov yam ntxwv hauv qab no:

• Fast-actuating, ntev-lub neej solid-state relays
• DC thiab AC voltage ntsuas
• Ob-xaim los yog plaub-xaim kuj ntsuas (automatically khub relays rau plaub-xaim ntsuas)
• Kev siv ntsuas kub (RTD, thermistor, thermocouple)
• Built-in txias hlws ris siv rau thermocouple kub
• Ntsia hlau txuas txuas

Nco tseg
7710 tuaj yeem siv nrog DAQ6510 Cov Ntaub Ntawv Tau Txais thiab Multimeter System.
Yog tias koj siv qhov hloov pauv no nrog 2700, 2701, lossis 2750, thov saib Model 7710 Multiplexer
Daim Ntawv Qhia Tus Neeg Siv, Keithley Instruments PA-847.

Cov kev sib txuas

Ntsia hlau terminals ntawm lub switching module yog muab rau kev sib txuas rau cov cuab yeej nyob rau hauv kev sim (DUT) thiab sab nraud circuitry. Lub 7710 siv ceev-disconnect davhlau ya nyob twg thaiv. Koj tuaj yeem ua kev sib txuas rau lub davhlau ya nyob twg thaiv thaum nws raug txiav tawm ntawm lub module. Cov terminal blocks no tau ntsuas rau 25 txuas thiab txiav tawm.
CEEB TOOM
Kev sib txuas thiab xaim cov txheej txheem hauv cov ntaub ntawv no yog npaj rau kev siv los ntawm cov neeg ua haujlwm tsim nyog nkaus xwb, raws li tau piav qhia los ntawm cov hom khoom siv hauv kev tiv thaiv kev nyab xeeb (ntawm nplooj 25). Tsis txhob ua cov txheej txheem no tshwj tsis yog tias tsim nyog ua li ntawd. Kev tsis lees paub thiab ua raws li kev tiv thaiv kev nyab xeeb ib txwm ua rau tus kheej raug mob lossis tuag.
Cov ntaub ntawv hauv qab no piav qhia txog yuav ua li cas txuas mus rau qhov hloov pauv module thiab txhais cov npe channel. Lub cav sib txuas tau muab rau koj siv los sau koj cov kev sib txuas.
Cov txheej txheem xaim
Siv cov txheej txheem hauv qab no los txuas rau 7710 module. Ua kom tag nrho cov kev sib txuas siv qhov loj me me (txog 20 AWG). Rau kev ua haujlwm siab tshaj plaws, tag nrho cov ntsuas cables yuav tsum tsawg dua peb meters. Ntxiv ntxiv rwb thaiv tsev nyob ib ncig ntawm lub sam thiaj rau voltages saum 42 VPEAK.
CEEB TOOM
Tag nrho cov xaim yuav tsum raug ntsuas rau qhov siab tshaj plaws voltage hauv qhov system. Rau example, yog hais tias 1000 V yog siv rau pem hauv ntej terminals ntawm lub twj paj nruag, lub switching module thaiv yuav tsum tau ntsuas rau 1000 V. Kev tsis lees paub thiab ua raws li kev tiv thaiv kev nyab xeeb yuav ua rau tus kheej raug mob lossis tuag.
Cov khoom siv xav tau:

• Cov ntsia hlau tiaj tus kheej
• Koob-qhov ntswg pliers
• Cov kab mob

Rau xaim 7710 module:

1. Xyuas kom tseeb tias txhua lub hwj chim tawm ntawm 7710 module.
2. Siv lub hau ntswj, tig cov ntsia hlau nkag mus qhib thiab qhib lub hau, raws li qhia hauv daim duab hauv qab no.
   Daim duab 2: Screw terminal nkag
3. Yog xav tau, tshem tawm qhov tsim nyog ceev-disconnect davhlau ya nyob twg thaiv los ntawm module.
   ib. Muab lub taub hau taub hau ntsia hlau rau hauv qhov txuas thiab maj mam thawb kom xoob nws, raws li qhia hauv daim duab hauv qab no.
   b. Siv rab koob-qhov ntswg pliers rub lub connector ncaj nraim.
   CEEB TOOM
   Tsis txhob rock lub connector ntawm ib sab mus rau sab. Kev puas tsuaj rau cov pins tuaj yeem tshwm sim.
   Daim duab 3: Cov txheej txheem tsim nyog los tshem tawm cov terminal blocks   
4. Siv ib lub taub hau me me, xoob lub davhlau ya nyob twg screws thiab nruab cov xov hlau raws li xav tau. Cov duab hauv qab no qhia txog kev sib txuas, nrog rau kev sib txuas ntawm qhov chaw thiab kev nkag siab.
   Daim duab 4: Screw terminal channel designations
5. Txuas lub davhlau ya nyob twg thaiv rau hauv module.
6. Taug kev xaim raws txoj kev xaim thiab ruaj ntseg nrog cov hlua khi raws li qhia. Cov duab hauv qab no qhia txog kev sib txuas rau channel 1 thiab 2.
   Daim duab 5: Hlau hnav khaub ncaws
7. Sau ib daim ntawv luam ntawm lub cav sib txuas. Saib Daim Ntawv Txuas Txuas (ntawm nplooj 8).
8. Kaw cov ntsia hlau terminal access cover.
9. Siv lub hau ntswj, nias rau hauv cov ntsia hlau nkag thiab tig kom xauv lub hau.

Module configuration

Cov duab hauv qab no qhia txog qhov yooj yim schematic ntawm 7710 module. Raws li tau pom, 7710 muaj cov channel uas tau muab faib ua ob lub txhab nyiaj ntawm 10 channel (20 channels tag nrho). Backplane rho tawm yog muab rau txhua lub txhab nyiaj. Txhua lub tsev txhab nyiaj suav nrog cov ntsiab lus hais txog kev sib tshuam txias. Thawj lub txhab nyiaj muaj cov channels 1 txog 10, thaum lub txhab nyiaj thib ob muaj cov channel 11 txog 20. Txhua channel ntawm 20-channel multiplexer module yog wired nrog cov khoom siv sib cais rau HI / LO muab cov khoom sib cais tag nrho.
Kev sib txuas rau DMM lub luag haujlwm yog muab los ntawm lub module backplane connector.
Raws 21, 22, thiab 23 raug teeb tsa los ntawm qhov ntsuas thaum siv qhov system channel ua haujlwm.
Thaum siv qhov system channel ua haujlwm rau 4-xaim kev ntsuas (xws li 4-xaim ohms, RTD kub, Ratio, thiab Channel Nruab Nrab), cov kab sib txuas ua ke raws li hauv qab no:

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

Nco tseg
Channel 21 txog 23 hauv qhov schematic no xa mus rau cov npe siv los tswj thiab tsis muaj cov channel tiag tiag. Yog xav paub ntxiv, mus saib phau ntawv qhia txog kev siv ntsuas ntsuas.
Daim duab 6: 7710 simplified schematic

Tej kev sib txuas

Cov nram qab no examples qhia cov kab txuas txuas rau cov hom kev ntsuas hauv qab no:

• Thermocouple
• Ob-xaim tsis kam thiab thermistor
• Plaub-xaim tsis kam thiab RTD
• DC los yog AC Voltage

Kev sib txuas cav

Koj tuaj yeem siv cov lus hauv qab no los sau koj cov ntaub ntawv sib txuas.
Kev sib txuas lus rau 7710

Channel		Xim	Kev piav qhia
Daim npav qhov chaw	H
	L
Card Sense	H
	L
CH 1	H
	L
CH 2	H
	L
CH 3	H
	L
CH 4	H
	L
CH 5	H
	L
CH 6	H
	L
CH 7	H
	L
CH 8	H
	L
CH 9	H
	L
CH 10	H
	L
CH 11	H
	L
CH 12	H
	L
CH 13	H
	L
CH 14	H
	L
CH 15	H
	L
CH 16	H
	L
CH 17	H
	L
CH 18	H
	L
CH 19	H
	L
CH 2 O	H
	L

Kev teeb tsa

Ua ntej kev khiav hauj lwm ib qho cuab yeej nrog ib tug switching module, xyuas kom meej tias lub switching module raug ntsia zoo thiab lub mounting screws yog nruj nreem fastened. Yog hais tias lub mounting screws tsis txuas zoo, yuav muaj hluav taws xob poob siab.
Yog tias koj tab tom txhim kho ob qhov hloov pauv, nws yooj yim dua rau nruab qhov hloov pauv mus rau hauv qhov 2 ua ntej, tom qab ntawd nruab qhov hloov pauv thib ob rau hauv qhov 1.
Nco tseg
Yog tias koj muaj Keithley Instruments Model 2700, 2701, lossis 2750 ntsuas, koj tuaj yeem siv koj qhov hloov pauv uas twb muaj lawm hauv DAQ6510. Ua raws li cov lus qhia hauv koj cov ntaub ntawv tseem ceeb ntawm cov cuab yeej siv kom tshem tawm cov qauv ntawm lub cuab yeej, tom qab ntawd siv cov lus qhia hauv qab no los nruab rau hauv DAQ6510. Koj tsis tas yuav tshem tawm cov xaim mus rau lub module.
Nco tseg
Rau cov neeg siv tsis paub dhau los, nws raug nquahu kom koj tsis txhob txuas lub cuab yeej hauv kev sim (DUT) thiab sab nraud circuitry mus rau qhov hloov pauv. Qhov no tso cai rau koj siv sijhawm ze thiab qhib kev ua haujlwm yam tsis muaj kev phom sij cuam tshuam nrog kev sim nyob hauv circuits. Koj tuaj yeem teeb tsa pseudocards los sim nrog kev hloov. Xa mus rau "Pseudocards" hauv Model DAQ6510 Cov Ntaub Ntawv Tau Txais thiab Multimeter System Reference Manual rau cov ntaub ntawv ntawm kev teeb tsa pseudocards.
CEEB TOOM
Txhawm rau tiv thaiv hluav taws xob poob siab uas tuaj yeem ua rau raug mob lossis tuag, tsis txhob kov lub tshuab hloov pauv uas muaj lub zog siv rau nws. Ua ntej txhim kho lossis tshem tawm qhov hloov pauv, xyuas kom lub ntsuas hluav taws xob raug kaw thiab txiav tawm ntawm kab hluav taws xob. Yog hais tias lub switching module txuas nrog DUT, xyuas kom meej tias lub hwj chim raug tshem tawm ntawm txhua qhov hluav taws xob sab nraud.
CEEB TOOM
Cov npog qhov yuav tsum tau muab ntsia rau ntawm qhov tsis siv los tiv thaiv tus kheej kev sib cuag nrog high-voltage circuits. Kev tsis lees paub thiab ua raws cov qauv kev tiv thaiv kev nyab xeeb tuaj yeem ua rau tus kheej raug mob lossis tuag vim hluav taws xob poob.
CEEB TOOM
Ua ntej txhim kho lossis tshem tawm qhov hloov pauv, xyuas kom tseeb tias DAQ6510 lub zog raug muab tua thiab txiav tawm ntawm kab hluav taws xob. Tsis ua raws li yuav ua rau kev ua haujlwm tsis raug thiab poob ntawm cov ntaub ntawv hauv lub cim xeeb.
Cov cuab yeej xav tau:

• Medium flat-blade screwdriver
• Nruab Nrab Phillips ntsia hlau

Txhawm rau nruab qhov hloov pauv mus rau hauv DAQ6510:

1. Tua tawm DAQ6510.
2. Disconnect lub hwj chim qaum los ntawm lub hwj chim qhov chaw.
3. Tshem tawm cov hlua hluav taws xob thiab lwm cov cables uas txuas nrog lub vaj huam sib luag tom qab.
4. Tso lub DAQ6510 kom koj tab tom ntsib lub vaj huam sib luag tom qab.
5. Siv lub hau ntswj kom tshem tawm lub hau npog screws thiab lub hau npog. Khaws cov phaj thiab screws rau yav tom ntej siv.
6. Nrog rau sab saum toj ntawm lub switching module tig mus, xaub lub switching module rau hauv lub qhov.
7. Nias lub switching module nyob rau hauv khov kho kom paub tseeb tias lub switching module connector txuas nrog DAQ6510 connector.
8. Siv lub hau ntswj txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhuam nws Tsis txhob overtighten.
9. Reconnect lub hwj chim qaum thiab lwm yam cables.

Tshem tawm qhov hloov pauv module

Nco tseg
Ua ntej koj tshem tawm ib qho kev hloov pauv lossis pib qhov kev sim, xyuas kom meej tias tag nrho cov relays qhib. Txij li qee qhov relays yuav raug kaw, koj yuav tsum qhib tag nrho cov relays ua ntej tshem tawm cov hloov pauv los ua kev sib txuas. Tsis tas li ntawd, yog tias koj tso koj qhov kev hloov pauv, nws muaj peev xwm rau qee qhov relays rau latch kaw.
Txhawm rau qhib txhua channel relays, mus rau CHANNEL los so npo. Xaiv Qhib Txhua.
CEEB TOOM
Txhawm rau tiv thaiv hluav taws xob poob siab uas tuaj yeem ua rau raug mob lossis tuag, tsis txhob kov lub tshuab hloov pauv uas muaj lub zog siv rau nws. Ua ntej txhim kho lossis tshem tawm qhov hloov pauv, xyuas kom tseeb tias DAQ6510 raug muab tua thiab txiav tawm ntawm kab hluav taws xob. Yog hais tias lub switching module txuas nrog DUT, xyuas kom meej tias lub hwj chim raug tshem tawm ntawm txhua qhov hluav taws xob sab nraud.
CEEB TOOM
Yog tias daim npav qhov tsis siv, koj yuav tsum nruab qhov npog kom tiv thaiv tus kheej kev sib cuag nrog siab voltage circuits. Kev ua tsis tiav rau kev teeb tsa cov npog npog tuaj yeem ua rau tus kheej raug rau kev phom sij voltages, uas tuaj yeem ua rau tus kheej raug mob lossis tuag yog tias tiv tauj.
CEEB TOOM
Ua ntej txhim kho lossis tshem tawm qhov hloov pauv, xyuas kom tseeb tias DAQ6510 lub zog raug muab tua thiab txiav tawm ntawm kab hluav taws xob. Tsis ua raws li yuav ua rau kev ua haujlwm tsis raug thiab poob ntawm cov ntaub ntawv hauv lub cim xeeb.
Cov cuab yeej xav tau:

• Medium flat-blade screwdriver
• Nruab Nrab Phillips ntsia hlau

Txhawm rau tshem tawm qhov hloov pauv ntawm DAQ6510:

1. Tua tawm DAQ6510.
2. Disconnect lub hwj chim qaum los ntawm lub hwj chim qhov chaw.
3. Tshem tawm cov hlua hluav taws xob thiab lwm cov cables uas txuas nrog lub vaj huam sib luag tom qab.
4. Tso lub DAQ6510 kom koj tab tom ntsib lub vaj huam sib luag tom qab.
5. Siv lub hau ntswj kom loosen cov mounting screws uas ruaj ntseg switching module rau lub ntsuas.
6. Ua tib zoo tshem tawm qhov hloov pauv module.
7. Nruab ib lub phaj lossis lwm qhov hloov pauv hauv qhov khoob.
8. Reconnect lub hwj chim qaum thiab lwm yam cables.

Cov lus qhia ua haujlwm

CEEB TOOM
Ua ntej txhim kho lossis tshem tawm 7710 module, xyuas kom tseeb tias lub zog DAQ6510 raug muab tua thiab txiav tawm ntawm kab hluav taws xob. Tsis ua raws li yuav ua rau kev ua haujlwm tsis raug thiab poob ntawm cov ntaub ntawv los ntawm 7710 nco.
CEEB TOOM
Txhawm rau tiv thaiv overheating lossis kev puas tsuaj rau 7710 hloov pauv module relays, tsis txhob tshaj cov teeb liab siab tshaj plaws hauv qab no ntawm ob lub tswv yim lossis chassis: Ib qho channel rau ib qho channel (1 txog 20): 60 VDC lossis 42 VRMS, 100 mA hloov, 6 W, 4.2 VA max.
Tsis txhob tshaj qhov tshwj xeeb tshaj plaws rau 7710. Xa mus rau cov lus qhia tshwj xeeb hauv cov ntaub ntawv. Kev tsis lees paub thiab ua raws li kev tiv thaiv kev nyab xeeb ib txwm ua rau tus kheej raug mob lossis tuag.
CEEB TOOM
Thaum lub 7710 module tau muab tso rau hauv DAQ6510, nws txuas nrog rau pem hauv ntej thiab nram qab inputs thiab lwm yam modules nyob rau hauv lub system los ntawm lub ntsuas backplane. Txhawm rau tiv thaiv kev puas tsuaj rau 7710 module thiab txhawm rau tiv thaiv kev tsim kev puas tsuaj, tag nrho cov kev sim thiab tag nrho nws cov khoom siv yuav tsum tau derated rau 60 VDC (42 VRMS). Kev tsis lees paub thiab ua raws li kev tiv thaiv kev nyab xeeb ib txwm ua rau tus kheej raug mob lossis tuag. Xa mus rau cov ntaub ntawv ntsuas ntsuas rau cov lus qhia ua haujlwm.
CEEB TOOM
Qhov kev hloov pauv no tsis txhawb kev ntsuas tam sim no. Yog tias lub ntsuas hluav taws xob muaj lub TERMINALS hloov mus rau REAR thiab koj tab tom ua haujlwm nrog lub qhov uas muaj qhov hloov pauv no, AC, DC, thiab digitize cov haujlwm tam sim no tsis muaj. Koj tuaj yeem ntsuas tam sim no siv lub vaj huam sib luag pem hauv ntej lossis siv lwm qhov uas muaj qhov hloov pauv uas txhawb nqa AC, DC, thiab digitize ntsuas tam sim no.
Yog tias koj siv cov lus txib tej thaj chaw deb los sim ntsuas tam sim no thaum teeb tsa cov channel, qhov yuam kev raug xa rov qab.
Ceev scan siv 7710 module nrog DAQ6510 mainframe
Cov kev pab cuam SCPI hauv qab no qhia tau hais tias siv 7710 module thiab DAQ6510 mainframe kom ua tiav scanning ceev. Nws ua rau siv WinSocket tswj kev sib txuas lus nrog 7710 mainframe.

DAQ 6510 lub pseudocode	txib	Kev piav qhia
Pseudocode	int scanCnt = 1000	Tsim ib qho kev sib txawv los tuav tus lej scan
	koj sampleCnt	Tsim kom muaj qhov sib txawv los tuav tag nrho sample suav (tag nrho cov nyeem)
	koj chanCnt	Tsim kom muaj qhov sib txawv los tuav cov suav channel
	ua realRdgs	Tsim kom muaj qhov sib txawv los tuav qhov kev nyeem ntawv tiag tiag
	rcvBuffer	Tsim ib txoj hlua tsis los tuav cov ntawv nyeem
	t yam 1. pib ( )	Pib lub timer los pab ntes lub sijhawm dhau mus
TIAB SA 6510	• RST	Muab cov twj tso rau hauv lub xeev paub
	FORM: DATA ASCII	Format cov ntaub ntawv raws li txoj hlua ASCII
	ROUT: SCAN: COUN: SCAN scanCnt	Siv tus lej scan
	FUNC 'VOLT:DC' , (@101:120) UA	Teem function rau DCV
	VOLT: RANG 1, (@101:120) NPE	Teem lub sijhawm ruaj khov ntawm 1 V
	VOLT: AVER: STAT OFF, (@ 101:120)	Disable keeb kwm yav dhau
	DISP: VOLT: DIG 4, (@101:120)	Teem lub vaj huam sib luag pem hauv ntej kom pom 4 tus lej tseem ceeb
	VOLT : NPLC 0.0005, (@101:120)	Teeb tsa NPLC sai tshaj plaws
	VOLT:LINE:SYNC OFF, (@101:120)	Tua kab sync
	VOLT : AZER: STAT OFF, (@101:120)	Kaw auto zero
	CALC2 :VOLT :LIM1 :STAT OFF, (@101:120)	Tshem tawm cov kev xeem txwv
	CALC2 :VOLT :LIM2 :STAT OFF, (@101:120)
	ROUT: SCAN: INT 0	Teem lub sij hawm sib txawv ntawm cov scans rau 0s
	TRAC: CLE	Tshem tawm qhov tsis nyeem ntawv
	DISP: LIGH: STAT OFF	Tig lub tso saib tawm
	ROUT :SCAN :CRE (@101:120)	Teem daim ntawv scan
	chanCnt = ROUTe :SCAN:COUNT : STEP?	Nug cov suav suav
Pseudocode	sampleCnt = scanCnt • chanCnt	Xam cov naj npawb ntawm cov nyeem tau ua
TIAB SA 6510	init	Pib lub scan
Pseudocode	rau i = 1, i <sampleCnt	Teem af lossis voj ntawm 1 mus rau sampleCnt. tab sis cia qhov nce ntxiv ntawm 1 rau tom qab
	ncua 500	Ncua sijhawm rau 500 ms kom tso cai rau kev nyeem ntawv sau
TIAB SA 6510	realRdgs = TRACe: ACTual?	Nug cov ntawv nyeem tiag tiag
	rcvBuffer = “TRACe:DATA? i, realRdgs, “defbuf ferl”, NYEEM	Nug cov ntawv nyeem muaj los ntawm kuv mus rau tus nqi ntawm realRdgs
Pseudocode	WriteReadings (“C: \ myData . csv”, rcvBuffer)	Sau cov ntawv nyeem rau a file. myData.csv. ntawm lub computer hauv zos
	i = realRdgs + 1	Increment kuv rau lub voj tom ntej
	kawg rau	Xaus lub f lossis voj
	timer 1. nres( )	Nres lub timer
	timerl.stop – timerl.start	Xam lub sij hawm dhau mus
TIAB SA 6510	DISP: LICH: STAT ON 100	Tig lub tso saib dua

Cov kev pab cuam TSP hauv qab no qhia siv 7710 module thiab DAQ6510 mainframe kom ua tiav scanning ceev. Nws ua rau siv WinSocket tswj kev sib txuas lus nrog 7710 mainframe.
- Teeb tsa cov hloov pauv kom raug xa mus thaum lub sijhawm luam theej duab.
scanCnt = 1000
sampleCnt = 0
chanCnt = 0
realRdgs = 0
rcvBuffer = ""
- Tau txais lub sijhawm pibamp rau qhov kawg ntawm kev khiav kev sib piv.
local x = os.clock()
- Pib dua lub cuab yeej thiab tshem tawm qhov tsis.
rov pib dua( )
defbuffer1.clear()
- Teeb tsa kev nyeem ntawv tsis pub leej twg paub thiab tsim kev suav suav
format.data = format.ASCII
scan.scancount = scanCnt
- Teeb tsa cov kab ke scan rau daim npav hauv qhov 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 qhov screen.
display.lightstate = display.STATE_LCD_OFF
- Tsim lub scan.
scan.create(“101:120”)
scan.scaninterval = 0.0
chanCnt = scan.stepcount
- Xam tag nrho sample suav thiab siv nws los loj qhov tsis.
sampleCnt = scanCnt * chanCnt
defbuffer1.capacity = sampleCnt
- Pib lub scan.
trigger.model.initiate()
- Loop los ntes thiab luam ntawv nyeem.
ib = 1
thaum kuv <= sampleCnt ua
ncua (0.5)
myCnt = defbuffer1.n
- CEEB TOOM: tuaj yeem ntxiv lossis hloov los ntawm kev sau ntawv rau USB
printbuffer(i, myCnt, defbuffer1.readings)
kuv = myCnt + 1
kawg
- Tig lub tso saib dua.
display.lightstate = display.STATE_LCD_50
- Tshaj tawm lub sijhawm dhau los.
print(string.format("Lub sij hawm dhau los: %2f\n", os.clock() – x))

Kev txiav txim siab ua haujlwm

Tsawg-ohms ntsuas
Rau qhov kev tawm tsam hauv qhov ib txwm muaj (> 100 Ω), 2-xaim txoj kev (Ω2) feem ntau yog siv rau kev ntsuas ohms.
Rau qis ohms (≤100 Ω), lub teeb liab txoj kev tsis kam nyob rau hauv series nrog DUT tuaj yeem siab txaus los cuam tshuam qhov kev ntsuas. Yog li, txoj kev 4-xaim (Ω4) yuav tsum tau siv rau kev ntsuas qis-ohms. Cov kev sib tham hauv qab no piav qhia txog kev txwv ntawm 2-xaim txoj kev thiab advantages ntawm 4-wire method.
Txoj kev ob-xaim
Kev ntsuas ntsuas nyob rau hauv ib txwm muaj (> 100 Ω) feem ntau yog ua los ntawm 2-xaim txoj kev (Ω2 muaj nuj nqi). Qhov ntsuas tam sim no raug yuam los ntawm qhov kev xeem coj thiab qhov ntsuas tsis kam (RDUT). Lub 'meter' ces ntsuas qhov voltage hla tus nqi tsis kam raws li.
Qhov teeb meem tseem ceeb ntawm txoj kev 2-xaim, raws li kev siv rau kev ntsuas qis-tsis kam yog qhov ntsuas cov hlau lead tsis kam (RLEAD) thiab cov channel tsis kam (RCH). Cov txiaj ntsig ntawm cov kev tawm tsam no feem ntau nyob hauv thaj tsam ntawm 1.5 txog 2.5 Ω.
Yog li, nws yog qhov nyuaj kom tau txais qhov tseeb 2-xaim ohms ntsuas hauv qab 100 Ω.
Vim qhov kev txwv no, 4-xaim txoj kev yuav tsum tau siv rau kev ntsuas kev tiv thaiv ≤100 Ω.
Plaub-xaim txoj kev
Txoj kev sib txuas 4-xaim (Kelvin) siv Ω4 muaj nuj nqi feem ntau nyiam rau kev ntsuas qis-ohms.
Txoj kev 4-xaim tshem tawm cov teebmeem ntawm cov channel thiab kuaj cov hlau lead ua haujlwm.
Nrog rau qhov kev teeb tsa no, qhov ntsuas tam sim no (ITEST) raug yuam los ntawm qhov ntsuas qhov ntsuas (RDUT) los ntawm ib pawg ntawm cov kev xeem coj (RLEAD2 thiab RLEAD3), thaum lub vol.tage (VM) hla lub cuab yeej nyob rau hauv kev sim (DUT) yog ntsuas los ntawm ib txheej thib ob ntawm cov coj (RLEAD1 thiab RLEAD4) hu ua qhov kev nkag siab ua.
Nrog rau qhov kev teeb tsa no, qhov kev tawm tsam ntawm DUT yog xam raws li hauv qab no:
RDUT = VM / TSI
Qhov twg: Kuv yog qhov ntsuas tam sim no thiab V yog qhov ntsuas voltage.
Raws li pom nyob rau hauv daim duab nyob rau hauv Maximum test lead resistance (ntawm nplooj 17), ntsuas voltage (VM) yog qhov txawv ntawm VSHI thiab VSLO. Cov kev sib npaug hauv qab ntawm daim duab qhia tau hais tias yuav ua li cas kuaj cov hlau lead tiv thaiv thiab cov channel tsis kam raug tshem tawm ntawm cov txheej txheem ntsuas.
Maximum kuaj txhuas tsis kam
Qhov siab tshaj plaws kev xeem coj ua tsis kam (RLEAD), rau qhov tshwj xeeb 4-xaim tsis kam:

• 5 Ω rau 1 Ω
• 10% ntawm qhov ntau ntawm ib qho txhuas rau 10 Ω, 100 Ω, 1 kΩ, thiab 10 kΩ ntau yam
• 1 kΩ rau 100 kΩ, 1 MΩ, 10 MΩ, thiab 100 MΩ ntau yam

Kev xav:

• Zoo tsis muaj tam sim no ntws nyob rau hauv lub siab-impedance Circuit Court vim hais tias ntawm lub siab impedance ntawm lub voltmeter (VM). Yog li ntawd, lub voltage poob thoob plaws Channel 11 thiab kuaj cov txhuas 1 thiab 4 yog qhov tsis zoo thiab tuaj yeem tsis quav ntsej.
• Qhov voltage poob thoob plaws Channel 1 Hi (RCH1Hi) thiab kuaj txhuas 2 (RLEAD2) tsis ntsuas los ntawm voltmeter (VM).

RDUT = VM/ITEST
Qhov twg:

• VM is the voltage ntsuas los ntawm qhov ntsuas.
• ITEST yog qhov tam sim no los ntawm qhov ntsuas mus rau DUT.
• VM = VSHI - VSLO
• VSHI = ITEST × (RDUT + RLEAD3 + RCH1Lo)
• VSLO = ITEST × (RLEAD3 + RCH1Lo)
• VSHI − VSLO = ITEST × [(RDUT + RLEAD3 + RCH1Lo) − (RLEAD3 + RCH1Lo)]
• = TSI × RDUT
• = VM

Voltage kev ntsuas
Txoj kev tiv thaiv tuaj yeem cuam tshuam qhov kev ntsuas qis-ohms (saib qhov ntsuas qis-ohms (ntawm nplooj 16) yog xav paub ntxiv). Series txoj kev tsis kam tuaj yeem ua rau muaj teeb meem thauj khoom rau DC voltage ntsuas ntawm 100 V, 10 V, thiab 10 mV ranges thaum lub 10 MΩ input divider tau qhib. High teeb liab txoj kev kuj tseem tuaj yeem cuam tshuam rau AC voltage ntsuas ntawm 100 V ntau tshaj 1 kHz.
Insertion poob
Insertion poob yog AC teeb liab lub zog poob ntawm lub tswv yim thiab cov zis. Nyob rau hauv dav dav, raws li zaus nce, insertion poob nce.
Rau 7710 module, qhov kev poob qis tau teev tseg rau 50 Ω AC teeb liab los ntawm lub module mus rau 50 Ω load. Lub teeb liab lub zog poob tshwm sim thaum lub teeb liab tau dhau los ntawm cov teeb liab txoj hauv kev ntawm lub module mus rau lub load. Insertion poob yog qhia raws li dB magnitudes ntawm lub frequencies. Cov lus qhia tshwj xeeb rau kev poob qis yog muab rau hauv daim ntawv teev cov ntaub ntawv.
Raws li ib tug example, xav txog cov kev qhia hauv qab no rau kev poob qis:
<1 dB @ 500 kHz 1 dB ntxig poob yog kwv yees li 20% poob ntawm lub teeb liab lub zog.
<3 dB @ 2 MHz 3 dB ntxig poob yog kwv yees li 50% poob ntawm lub teeb liab zog.
Raws li cov teeb liab zaus nce, lub zog poob nce.
Nco tseg
Cov txiaj ntsig tsis raug siv hauv cov lus saum toj no example tej zaum yuav tsis yog qhov tseeb insertion poob specifications ntawm 7710. Qhov tseeb insertion poob specifications muaj nyob rau hauv datasheet.
Crosstalk
Lub teeb liab AC tuaj yeem raug ntxias mus rau hauv cov kab sib txuas ntawm qhov txuas ntawm 7710 module. Feem ntau, crosstalk nce thaum zaus nce.
Rau 7710 module, crosstalk tau teev tseg rau AC teeb liab los ntawm lub module mus rau 50 Ω load. Crosstalk tau nthuav tawm raws li qhov loj ntawm dB ntawm qhov zaus. Cov lus qhia tshwj xeeb rau crosstalk muaj nyob rau hauv cov ntaub ntawv.
Raws li ib tug example, xav txog cov lus qhia hauv qab no rau crosstalk:
<-40 dB @ 500 kHz -40 dB qhia tias crosstalk mus rau hauv cov kab uas nyob ib sab yog 0.01% ntawm AC teeb liab.
Raws li cov teeb liab zaus nce, crosstalk nce.
Nco tseg
Crosstalk qhov tseem ceeb siv nyob rau hauv cov saum toj no example tej zaum yuav tsis yog qhov tseeb crosstalk specification ntawm 7710. Qhov tseeb crosstalk specification yog muab nyob rau hauv datasheet.
Kev ntsuas kub ntawm lub dab dej kub
Kev ntsuas qhov kub ntawm lub dab dej kub yog ib qho kev sim rau ib qho system uas muaj peev xwm ntsuas qhov kub thiab txias. Txawm li cas los xij, 7710 module tsis tuaj yeem siv yog tias lub dab dej kub tau ntab ntawm qhov phom sij txaus ntshaitage theem (> 60V). Ib example ntawm qhov kev sim no yog qhia hauv qab no.
Hauv daim duab hauv qab no, lub dab dej kub yog ntab ntawm 120 V, uas yog kab voltage yog input rau +5V regulator.
Lub hom phiaj yog siv channel 1 los ntsuas qhov kub ntawm lub dab dej kub, thiab siv cov channel 2 los ntsuas qhov tso tawm ntawm +5 V ntawm tus tswj hwm. Rau qhov zoo tshaj plaws cua sov hloov mus, lub thermocouple (TC) yog muab tso rau hauv kev sib cuag ncaj qha nrog lub dab dej kub. Qhov no inadvertently txuas lub floating 120 V peev xwm mus rau 7710 module. Qhov tshwm sim yog 115 V ntawm channel 1 thiab channel 2 HI, thiab 120 V ntawm channel 1 thiab chassis. Cov qib no tshaj li 60 V txwv ntawm lub module, tsim kom muaj kev poob siab thiab tej zaum yuav ua rau kev puas tsuaj rau lub module.
CEEB TOOM
Qhov kev ntsuam xyuas hauv daim duab hauv qab no qhia tau tias muaj kev phom sij npaum li castage tuaj yeem tsis txhob txwm siv rau 7710 module. Nyob rau hauv txhua qhov kev sim qhov twg ntab voltages> 60 V tam sim no, koj yuav tsum ceev faj tsis txhob siv cov voltage rau module. Kev tsis lees paub thiab ua raws li kev tiv thaiv kev nyab xeeb ib txwm ua rau tus kheej raug mob lossis tuag.
CEEB TOOM
Tsis txhob siv 7710 module los ua hom kev xeem no. Nws tshaj li 60 V txwv tsim kev poob siab thiab tuaj yeem ua rau muaj kev puas tsuaj rau lub module. Tshaj voltages:
Qhov voltage sib txawv ntawm Ch 1 thiab Ch 2 HI yog 115 V.
Qhov voltage sib txawv ntawm Ch 1 thiab Ch 2 LO (chassis) yog 120 V.

Module tuav ceev faj
Cov khoom hauv lub xeev relays siv ntawm 7710 module yog cov khoom siv zoo li qub. Yog li, lawv tuaj yeem raug puas los ntawm electrostatic paug (ESD).
CEEB TOOM
Txhawm rau tiv thaiv kev puas tsuaj los ntawm ESD, tsuas yog tuav lub module los ntawm daim npav npoo. Tsis txhob kov lub backplane connector terminals. Thaum ua hauj lwm nrog lub ceev-disconnect davhlau ya nyob twg blocks, tsis txhob kov tej Circuit Court board kab los yog lwm yam khoom. Yog tias ua haujlwm nyob rau hauv ib puag ncig zoo li qub, siv lub dab teg hauv av thaum txuas lub module.
Kov cov kab hluav taws xob hauv Circuit Court tej zaum yuav kis tau nrog cov roj hauv lub cev uas tuaj yeem ua rau qhov kev sib cais tsis sib haum ntawm cov kab hluav taws xob, cuam tshuam rau kev ntsuas. Nws yog ib qho kev xyaum zoo los tuav lub rooj tsav xwm Circuit Court nkaus xwb los ntawm nws cov npoo.
Kev ceev faj txog lub xeev relay
Txhawm rau tiv thaiv kev puas tsuaj rau lub module, tsis txhob tshaj qhov siab tshaj ntawm cov teeb liab theem specification ntawm module. Reactive loads xav tau voltage cl uaamping rau inductive loads thiab surge tam sim no txwv rau capacitive loads.
Cov cuab yeej txwv tam sim no tuaj yeem yog cov resistors lossis resettable fuses. Examples ntawm resettable fuses yog polyfuses thiab zoo kub coefficient (PTC) thermistor. Voltage cl uaampCov khoom siv tuaj yeem yog Zener diodes, roj tso tawm cov raj, thiab bidirectional TVS diodes.
Kev txwv kev siv resistor
Cabling thiab kuaj fixtures tuaj yeem ua rau muaj peev xwm loj heev rau txoj kev teeb liab. Inrush tam sim no yuav dhau los thiab xav tau cov cuab yeej txwv tam sim no. Loj inrush tam sim no yuav ntws thaum incandescent lamps, transformer thiab cov cuab yeej zoo sib xws yog thawj zaug energized thiab tam sim no txwv yuav tsum tau siv.
Siv tam sim no limiting resistors los txwv inrush tam sim no los ntawm cable thiab DUT capacitance.Clamp voltage
Voltage cl uaamping yuav tsum tau siv yog hais tias lub hwj chim qhov chaw muaj lub peev xwm ntawm tsim ib ntus voltage spuaj.
Inductive loads xws li relay coils thiab solenoids yuav tsum muaj voltage cl uaampnyob rau hauv lub load los suppress counter electromotive rog. Txawm tias muaj tseeb voltages generated ntawm lub load yog txwv nyob rau hauv lub ntaus ntawv, transient voltages yuav raug tsim los ntawm inductance yog tias cov xov hlau txuas ntev ntev. Khaws cov xov hlau kom luv li sai tau kom txo qis inductance.
Siv lub diode thiab Zener diode rau clamp voltage spikes generated los ntawm counter electromotive rog ntawm lub relay coil. Siv lub raj xa pa roj los tiv thaiv cov kab mob tsis sib xws los ntawm kev puas tsuaj rau cov relay. Yog hais tias lub cuab yeej nyob rau hauv kev sim (DUT) hloov impedance xeev thaum lub sij hawm sim, dhau tam sim no los yog voltages tej zaum yuav tshwm sim ntawm lub xeev relay. Yog tias DUT ua tsis tiav vim qhov impedance qis, kev txwv tam sim no yuav tsum tau. Yog tias DUT ua tsis tiav vim muaj impedance siab, voltage cl uaamping tej zaum yuav tsum tau.

Calibration

Cov txheej txheem hauv qab no ntsuas qhov ntsuas kub ntsuas ntawm 7710 plug-in modules.
CEEB TOOM
Tsis txhob sim ua cov txheej txheem no tshwj tsis yog tias koj tsim nyog, raws li tau piav qhia los ntawm cov hom khoom siv hauv kev ceev faj txog kev nyab xeeb. Tsis txhob ua cov txheej txheem no tshwj tsis yog tias tsim nyog ua li ntawd. Kev tsis lees paub thiab ua raws li kev tiv thaiv kev nyab xeeb ib txwm ua rau tus kheej raug mob lossis tuag.
Kev teeb tsa calibration
Txhawm rau calibrate lub module, koj xav tau cov cuab yeej hauv qab no.

• Digital ntsuas kub: 18 ° C txog 28 ° C ± 0.1 ° C
• Keithley 7797 Calibration/Extender Board

Extender board kev sib txuas
Extender board yog ntsia rau hauv DAQ6510. Lub module txuas nrog rau lub rooj tsavxwm extender sab nraud los tiv thaiv cua sov ntawm lub module thaum lub sij hawm calibration.
Txhawm rau ua kom cov board txuas txuas ntxiv:

1. Tshem tawm lub zog los ntawm DAQ6510.
2. Nruab lub board Extender rau hauv qhov 1 ntawm qhov ntsuas.
3. Txuas lub module rau hauv P1000 connector nyob tom qab ntawm 7797 Calibration/Extender Board.

Kub calibration

Nco tseg
Ua ntej ntsuas qhov ntsuas kub ntawm 7710, tshem tawm lub zog ntawm lub module rau tsawg kawg ob teev kom tso cai rau module circuitry kom txias. Tom qab tig lub hwj chim thaum lub sij hawm calibration txheej txheem, ua kom tiav cov txheej txheem kom sai li sai tau kom txo tau cov module cua sov uas yuav cuam tshuam rau calibration raug. Thaum xub thawj tso cai rau DAQ6510 kom sov li tsawg kawg ib teev nrog 7797 calibration card ntsia. Yog hais tias calibrating ntau modules nyob rau hauv ib tug kab, hwj chim tawm lub DAQ6510, sai sai unplug lub yav tas los calibrated 7710, thiab ntsaws rau lwm tus. Tos peb feeb ua ntej calibrating 7710.

Teeb tsa calibration:

1. Qhib lub DAQ6510 lub zog.
2. Txhawm rau kom paub tseeb tias lub cuab yeej siv SCPI cov lus txib, xa: *LANG SCPI
3. Nyob rau pem hauv ntej vaj huam sib luag, xyuas kom meej tias TERMINALS yog teem rau REAR.
4. Cia peb feeb rau thermal equilibrium.

Rau calibrate kub:

1. Ua kom raug ntsuas thiab sau qhov txias txias ntawm 7710 module nto ntawm qhov chaw ntawm lub module nrog lub ntsuas kub digital.
2. Xauv calibration los ntawm kev xa:
   :CALibration:Protected:CODE “KI006510”
3. Calibrate kub ntawm 7710 nrog cov lus txib hauv qab no, qhov twg yog qhov txias calibration kub ntsuas hauv kauj ruam 1 saum toj no:
   :CALibration: Tiv thaiv: CARD1: STEP0
4. Xa cov lus txib hauv qab no kom txuag tau thiab kaw tawm calibration:
   :CALibration:Protected:CARD1:SAVE
   :CALibration:Protected:CARD1:LOCK

Qhov yuam kev uas tuaj yeem tshwm sim thaum lub sij hawm calibration
Yog hais tias calibration yuam kev tshwm sim, lawv raug tshaj tawm nyob rau hauv qhov kev tshwm sim cav. Koj tuaj yeem rovview qhov xwm txheej log los ntawm pem hauv ntej vaj huam sib luag ntawm
qhov ntsuas los ntawm kev siv SCPI :SYSTem:EVENTlog:Tom ntej? hais kom ua lossis TSP eventlog.next()
lus txib.
Qhov yuam kev uas tuaj yeem tshwm sim ntawm qhov module no yog 5527, Temperature Cold Cal yuam kev. Yog tias qhov yuam kev no tshwm sim, hu rau Keithley
Cov cuab yeej. Xa mus rau Factory service (ntawm nplooj 24).

Kev pabcuam hauv Hoobkas

Txhawm rau rov qab koj DAQ6510 rau kev kho lossis ntsuas ntsuas, hu rau 1-800-408-8165 Ib los yog ua kom tiav daim ntawv ntawm tek.com/services/repair/rma-request. Thaum koj thov kev pabcuam, koj xav tau tus lej xov tooj thiab firmware lossis software version ntawm lub ntsuas.
Txhawm rau pom qhov kev pabcuam ntawm koj lub cuab yeej lossis tsim qhov kev xav tau ntawm tus nqi kwv yees, mus rau tek.com/service-quote.

Kev ceev faj txog kev nyab xeeb

Cov kev ceev faj txog kev nyab xeeb hauv qab no yuav tsum tau soj ntsuam ua ntej siv cov khoom no thiab cov cuab yeej sib txuas. Txawm hais tias qee cov cuab yeej thiab cov khoom siv feem ntau yuav siv nrog tsis muaj kev phom sijtages, muaj cov xwm txheej uas muaj kev phom sij tuaj yeem tshwm sim.
Cov khoom no yog tsim los rau kev siv los ntawm cov neeg ua haujlwm uas paub txog kev phom sij txaus ntshai thiab paub txog kev tiv thaiv kev nyab xeeb uas yuav tsum tau ua kom tsis txhob raug mob. Nyeem thiab ua raws txhua qhov kev teeb tsa, kev ua haujlwm, thiab kev saib xyuas kom zoo ua ntej siv cov khoom.
Xa mus rau cov ntaub ntawv neeg siv kom tiav cov khoom specifications. Yog hais tias cov khoom siv nyob rau hauv ib yam uas tsis tau teev tseg, kev tiv thaiv los ntawm cov khoom warranty tej zaum yuav impaired.
Cov hom ntawm cov neeg siv khoom yog:
Lub luag haujlwm lub luag haujlwm yog tus neeg lossis pab pawg neeg lub luag haujlwm rau kev siv thiab tu cov cuab yeej, kom ntseeg tau tias cov khoom siv tau ua haujlwm raws li nws cov kev qhia tshwj xeeb thiab kev txwv kev ua haujlwm, thiab kom ntseeg tau tias cov neeg ua haujlwm tau txais kev cob qhia txaus. Cov neeg ua haujlwm siv cov khoom siv rau nws txoj haujlwm xav tau. Lawv yuav tsum tau kawm txog cov txheej txheem kev nyab xeeb ntawm hluav taws xob thiab kev siv cov cuab yeej kom raug. Lawv yuav tsum raug tiv thaiv los ntawm hluav taws xob poob siab thiab kev sib cuag nrog cov hluav taws xob nyob hauv hluav taws xob.
Cov neeg ua haujlwm tu ua cov txheej txheem niaj hnub ntawm cov khoom kom nws ua haujlwm zoo, piv txwv liample, teem kab voltage lossis hloov cov khoom siv tau. Cov txheej txheem txij nkawm tau piav qhia hauv cov ntaub ntawv siv. Cov txheej txheem hais meej meej yog tias tus neeg teb xov tooj tuaj yeem ua lawv. Txwv tsis pub, lawv yuav tsum tau ua los ntawm cov neeg ua haujlwm pabcuam nkaus xwb.
Cov neeg ua haujlwm pabcuam raug cob qhia los ua haujlwm ntawm cov kab hluav taws xob nyob, ua haujlwm ruaj ntseg, thiab kho cov khoom lag luam. Tsuas yog cov neeg ua haujlwm tau txais kev qhia kom raug thiaj tuaj yeem ua cov txheej txheem teeb tsa thiab kev pabcuam.
Keithley cov khoom lag luam yog tsim los siv nrog cov teeb liab hluav taws xob uas ntsuas, tswj, thiab cov ntaub ntawv I / O kev sib txuas, nrog rau qhov tsis tshua muaj hluav taws xob overvoltages, thiab yuav tsum tsis txhob txuas ncaj qha rau mains voltage lub voltage qhov chaw nrog kev hloov pauv siab overvoltages.
Kev Ntsuas Qib II (raws li tau hais hauv IEC 60664) Kev sib txuas yuav tsum muaj kev tiv thaiv rau kev kub ntxhov dhau mustages feem ntau cuam tshuam nrog kev sib txuas hauv zos AC mains. Qee cov cuab yeej ntsuas Keithley tuaj yeem txuas nrog lub hauv paus. Cov cuab yeej no yuav raug cim raws li qeb II lossis siab dua.
Tshwj tsis yog tau tso cai tshwj xeeb hauv cov lus qhia tshwj xeeb, kev khiav hauj lwm phau ntawv, thiab cov ntawv cim ntsuas, tsis txhob txuas ib qho cuab yeej rau lub ntsiab. Ua tib zoo ceev faj thaum muaj kev phom sij txaus ntshai. Tuag voltage tej zaum yuav muaj nyob rau ntawm cable connector jacks lossis test fixtures.
Lub koom haum American National Standards Institute (ANSI) hais tias muaj kev phom sij txaus ntshai tshwm sim thaum voltage theem siab dua 30 V RMS, 42.4 V ncov, lossis 60 VDC tam sim no. Txoj kev nyab xeeb zoo yog xav kom muaj kev phom sij voltage yog tam sim no nyob rau hauv tej yam tsis paub Circuit Court ua ntej ntsuas.
Cov neeg ua haujlwm ntawm cov khoom no yuav tsum raug tiv thaiv los ntawm hluav taws xob txhua lub sijhawm. Lub luag haujlwm yuav tsum ua kom ntseeg tau tias cov neeg ua haujlwm raug tiv thaiv kev nkag mus thiab/lossis thaiv los ntawm txhua qhov chaw sib txuas. Hauv qee kis, kev sib txuas yuav tsum raug nthuav tawm rau tib neeg kev sib cuag. Cov tswv lag luam khoom hauv cov xwm txheej no yuav tsum raug cob qhia los tiv thaiv lawv tus kheej los ntawm kev pheej hmoo raug hluav taws xob. Yog tias lub Circuit Court muaj peev xwm ua haujlwm ntawm lossis siab dua 1000 V, tsis muaj ib feem ntawm cov khoom siv hluav taws xob tuaj yeem nthuav tawm.
Txhawm rau kom muaj kev nyab xeeb siab tshaj plaws, tsis txhob kov cov khoom, kuaj cables, lossis lwm yam twj paj nruag thaum lub zog siv rau hauv Circuit Court hauv kev sim. NTAUB NTAWV tshem tawm lub zog ntawm tag nrho cov kev sim ntsuas thiab tso tawm txhua lub capacitors ua ntej txuas lossis txiav cov cables lossis jumpers, txhim kho lossis tshem tawm cov ntawv hloov pauv, lossis hloov pauv sab hauv, xws li txhim kho lossis tshem cov jumpers.
Tsis txhob kov ib yam twg uas tuaj yeem muab txoj hauv kev tam sim no mus rau ib sab ntawm lub Circuit Court hauv kev sim lossis kab hluav taws xob (hauv ntiaj teb) hauv av. Ib txwm ntsuas nrog txhais tes qhuav thaum sawv ntsug ntawm qhov qhuav, rwb thaiv tsev muaj peev xwm tiv taus qhov ntimtage raug ntsuas.
Rau kev nyab xeeb, cov cuab yeej thiab cov khoom siv yuav tsum tau siv raws li cov lus qhia ua haujlwm. Yog tias cov cuab yeej siv los yog cov khoom siv tau siv rau hauv ib yam uas tsis tau teev tseg hauv cov lus qhia ua haujlwm, kev tiv thaiv los ntawm cov khoom siv yuav raug cuam tshuam.
Tsis txhob tshaj qhov siab tshaj plaws ntawm cov twj paj nruag thiab cov khoom siv. Cov theem teeb liab siab tshaj plaws tau txhais nyob rau hauv cov lus qhia tshwj xeeb thiab cov ntaub ntawv kev khiav hauj lwm thiab qhia rau ntawm cov cuab yeej ntsuas hluav taws xob, cov khoom siv hluav taws xob, thiab cov ntawv hloov pauv. Kev sib txuas ntawm chassis yuav tsum tsuas yog siv los ua cov ntaub thaiv kev sib txuas rau kev ntsuas hluav taws xob, TSIS yog kev tiv thaiv lub ntiaj teb (kev nyab xeeb hauv av) kev sib txuas.
Cov CEEB TOOM nqe lus hauv tus neeg siv cov ntaub ntawv piav qhia txog kev phom sij uas yuav ua rau raug mob lossis tuag. Ib txwm nyeem cov ntaub ntawv cuam tshuam ua tib zoo ua ntej ua qhov txheej txheem qhia.
Cov CEEB TOOM nqe lus hauv cov ntaub ntawv tus neeg siv piav qhia txog kev phom sij uas tuaj yeem ua rau lub cuab yeej puas. Tej kev puas tsuaj li ntawd
invalidate lub warranty.
Cov CEEB TOOM nqe lus nrog lub cim nyob rau hauv cov ntaub ntawv tus neeg siv piav qhia txog kev phom sij uas tuaj yeem ua rau muaj mob me me lossis me me lossis ua rau lub ntsuas puas. Ib txwm nyeem cov ntaub ntawv cuam tshuam ua tib zoo ua ntej ua cov txheej txheem qhia.
Kev puas tsuaj rau lub cuab yeej tuaj yeem ua rau lub warranty tsis raug.
Cov cuab yeej thiab cov khoom siv yuav tsum tsis txhob txuas nrog tib neeg.
Ua ntej ua ib qho kev saib xyuas, tshem tawm txoj hlua kab thiab txhua qhov ntsuas hluav taws xob.
Txhawm rau kom muaj kev tiv thaiv los ntawm hluav taws xob poob siab thiab hluav taws kub, cov khoom siv hloov pauv hauv cov khoom siv hluav taws xob - suav nrog lub zog hloov hluav taws xob, kev sim ua, thiab cov khoom siv hluav taws xob - yuav tsum tau yuav los ntawm Keithley. Standard fuses nrog kev tso cai kev nyab xeeb hauv tebchaws tuaj yeem siv yog tias qhov ntsuas thiab hom zoo ib yam. Lub detachable mains fais fab cord muab nrog lub ntsuas yuav tsuas yog hloov nrog ib tug zoo xws li cov nqi zog qaum. Lwm yam khoom uas tsis muaj kev nyab xeeb yuav raug yuav los ntawm lwm tus neeg muag khoom ntev npaum li lawv
yog sib npaug rau cov khoom qub (nco ntsoov tias cov khoom xaiv yuav tsum tau yuav los ntawm Keithley nkaus xwb thiaj li tswj tau qhov tseeb thiab kev ua haujlwm ntawm cov khoom). Yog tias koj tsis paub meej txog qhov siv tau ntawm cov khoom siv hloov pauv, hu rau Keithley qhov chaw ua haujlwm rau cov ntaub ntawv.
Tshwj tsis yog qhov sau tseg tshwj xeeb hauv cov ntaub ntawv tshwj xeeb, cov cuab yeej Keithley tau tsim los ua haujlwm sab hauv tsev nkaus xwb, hauv ib puag ncig hauv qab no: Qhov siab ntawm lossis qis dua 2,000 m (6,562 ft); kub 0 ° C txog 50 ° C (32 ° F txog 122 ° F); thiab qib qias neeg 1 lossis 2.
Txhawm rau ntxuav qhov ntsuas, siv daim ntaub dampened nrog dej deionized los yog me ntsis, cov dej huv. Ntxuav lub cuab yeej sab nrauv nkaus xwb. Tsis txhob siv lub tshuab nqus tsev ntxhua khaub ncaws ncaj qha rau lub twj tso kua mis lossis tso kua rau hauv lossis tso rau hauv qhov ntsuas. Cov khoom lag luam uas suav nrog lub rooj sib tham hauv Circuit Court uas tsis muaj cov ntaub ntawv lossis lub chassis (piv txwv li, cov ntaub ntawv nrhiav tau lub rooj rau teeb tsa rau hauv khoos phis tawj) yuav tsum tsis tas yuav tsum tau ntxuav yog ua raws li cov lus qhia. Yog tias pawg thawj coj tau ua paug thiab ua haujlwm raug cuam tshuam, pawg thawj coj yuav tsum raug xa rov qab mus rau lub hoobkas kom huv/ua haujlwm tau zoo.
Kev ceev faj txog kev nyab xeeb raws li lub Rau Hli 2018.

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