Agilent Technologies U2802A manuale d’uso

Agilent T echnologies Ag ilent U2 80 2A 31- Chann el Th ermo c oup le Inpu t De vice User’ s Guide U2 80 2A_UG .b ook Pag e I Tu es day, Ja nua ry 8, 20 08 10: 24 AM[...]

II U2802A 31-Channe l Thermocouple Input User ’s Guide Notices © A g ilen t T ec hn olo gi es , In c . 2 00 8 N o p a r t o f t h i s m an ua l m a y b e r e p r o d u c e d i n any form or by a ny mea ns (includ ing elec- tro n ic sto ra ge an d re tr ie val o r tr an slat ion int o a f or eig n la ngu age ) w ith ou t pr io r a gr ee- ment and[...]

U280 2A 31-Channel Thermocoup le Input User’s Guid e III Safe ty I nformation The fo llo w ing gen e ra l s afe ty pre c autio ns m ust b e o bs er ved du ri ng al l ph as es of thi s in str um ent . F ail ur e to c om pl y wi th the s e preca ut ions or wit h s peci fi c war nin gs el se wher e in this manua l v iol ates saf et y st andar ds of [...]

IV U2802A 31-Channe l Thermocouple Input User ’s Guide Off ( Su ppl y ) Equi pment pr otected thr ougho ut by doubl e insul ation or r ein- fo rc ed in sula tio n Ca uti on , r is k o f elec t r ic sh o ck Cau tio n, ho t s ur fac e Cau tio n, r is k of dang er (S ee n ote .) In po sition of a bi- stable push contr ol Out po sition of a bi -stabl[...]

U280 2A 31-Channel Thermocoup le Input User’s Guid e V Regulatory Markings The C E mark is a r egist ere d t radem ark of the Eur opea n comm unity. This C E ma rk shows that th e p roduct compli es wi th all t he rele v ant E u rope an leg al d ire ctiv e. ICE S/NM B -00 1 ind icat es that th is IS M d evi ce c omp lie s with Ca nadian ICES-0 01[...]

VI U2802A 31-Channe l Thermocouple Input User ’s Guide Ge n er a l S a fe t y In f orm at io n WA RN I N G • Do no t us e the dev ic e if i t i s dam aged. Before yo u use t he d evice , insp ect th e cas e. Lo ok f or cra cks or mi ssi ng plas tic . Do no t o perat e th e devi ce around expl os ive ga s, v apor or dust. • D o no t ap ply mor[...]

U280 2A 31-Channel Thermocoup le Input User’s G uide VII W aste E lect ric al and El ec tro nic Eq uip ment (WE EE ) Dir ect ive 2002 /96/EC Thi s inst rume nt c om plies wi th the WEEE Dir ect ive ( 2002 /96/ EC ) mark in g requi r ement . This a ffixe d produ ct la bel indic ates t hat y ou must no t dis card thi s ele ct rica l/ ele ctro nic p[...]

VIII U2802A 31-Channe l Thermocouple Input User ’s Guide Enviro nme nta l Condit ions The t abl e belo w sh ows t he gener a l env ir onme ntal req ui rement s fo r the pr od uct. Envir onmenta l Conditions Requir ements T emperat ur e Oper ati ng temp era ture fro m 0 °C to +55 °C Humidi ty Relati ve humidi ty at 5 0% to 85% RH (No n-c onden s[...]

U280 2A 31-Channel Thermocoup le Input User’s Guid e I X In This G uide ... 1 Get ting S tar ted This chapter i ntrod uces the ne w Agilent U 2802A 3 1- chan nel thermocouple in put de vice a nd pro vid es qui ck star t inf orm ation . It also p ro v ides product ou tlook, installatio n configuration and tr ou bl es hooti ng guid e . 2 Fea tures [...]

X U28 02A 31 -C hann el T her moc ou ple I npu t Use r’s Gu ide DECLARATION OF CONFORMITY According to EN ISO/IEC 17050-1:2004 Generic exampl e Manufactu rer’s Name: Agilent Tec hnologies M icrowave Pr oducts (M) S dn. Bhd Manufactu rer’s Address: Bayan Lepas Free Industri al Zone, 11900, Ba yan Lepas, Pen ang, Mala ysia Declares under sole r[...]

U280 2A 31-Channel Thermocoup le Input User’s Guid e X I Product Regulations Performance Criteria IEC 61326- 1:200 2 / EN 6132 6-1:199 7+A1:19 98 + A2:200 1+A3: 2003 CISPR 11:1 990 / EN 5 5011:19 90 – Group 1 Class A IEC 6100 0-4-2: 1995 / EN 61000- 4-2:1995 (ESD 4kV CD, 8kV A D) A IEC 6100 0-4-3:19 95 / EN 61000- 4-3:1996 (3V/m, 80% AM) A IEC [...]

XII U28 02A 31-C han nel T her moc ou ple Inpu t U ser’s Gu ide U28 02 A_ UG .bo ok P age X II Tu esd a y, J an uar y 8, 20 08 10 :24 AM[...]

Con tents 1 Con tent s Not ic es II Safe ty Inf orma tion III Envi ronment al Co nd iti on s VI I I In T his Gu id e. .. IX De cl ar at i on of Con for mi ty X 1 Getting S tarted In tr o duc tion to A gil ent U 28 02A 31 - Cha nn el Th er moco up le In pu t 2 Pro du ct O ver view 3 Sta ndard P urcha se It ems C heckl i st 6 Inst al lat ion s a nd C[...]

Con ten ts 2 5 Cali bration Ca libr atio n I nfo rm ati on 62 Zero ing Functi on 62 Res tore Factor y Calibrat ion 63 U2 80 2A_UG .b ook Pag e 2 Tues day , J anu ary 8 , 2 008 1 0:24 AM[...]

Con tents 3 Lis t of Figures Figu re 1 -1 U28 02A insta ll ation flowc har t 8 Figu re 2 -1 Syste m over view of U2 802 A w ith D AQ 28 Fi gure 2-2 System f unc tio nali ty bl ock di agra m f or U280 2A 29 Fi gure 2-3 Functi onal bloc k dia gram f or U280 2A 30 Fi gure 2-4 Functi onal bloc k dia gram f or th ermo couple mo de in U2802A 31 Fi gure 2[...]

Con ten ts 4 Lis t of T able s T a ble 4-1 U2 802 A mea su remen t a ccura cy wi th U2 355 A or U 235 6A , at 23 °C ± 5 ° C, with di ff ere nt num ber of avera ging po ints . 51 T a ble 4-2 U 280 2A meas urem ent acc uracy wi th U 235 5A, at 0 to 18 ° C and 28 t o 4 5 °C, with di ff ere nt num ber of avera ging po ints . 52 T a ble 4-3 U 280 2[...]

1 Agil ent U 2802A 31- Channe l Ther mocouple Inp ut Use r’s G u ide Agilen t T ech nologi es 1 Gett ing Sta rted I ntr o duc ti o n to Ag il en t U 280 2A 31- Chann el Th er mo cou ple In pu t 2 Pro du ct O vervi ew 3 Produc t Outlook 3 Pro du ct D im ensi ons 5 Sta ndard P urcha se It ems C heckl ist 6 Install ation s and C on figurat ions 7 A.[...]

1G e t t i n g S t a r t e d 2 Agil ent U2802 A 31-Channel The rmocouple Input User’ s Guide Introd uction to Ag ilent U2802A 3 1 -Channe l Thermocoupl e Input The A gilen t U280 2A 31 - channe l ther mocou ple inpu t i s a th ermoco upl e inp ut d evice that f unction s to conv ert lo w in put vol tage s ignal ( < ± 1 0 0 m V ) f r o m a t h[...]

Ge tt ing Sta r te d 1 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 3 Product Overv iew Product Outlook To p V i e w Front View Con nec tor 1 Conn ec tor 2 Det ac ha ble Cove r U 2802A 31-Channel Thermocouple I nput Rai ling G ui de Stra in Relea se Assembl y Footer U2 80 2A_UG .b ook Pag e 3 Tues day , J anu ary 8 , 2 008 1 0:24 [...]

1G e t t i n g S t a r t e d 4 Agil ent U2802 A 31-Channel The rmocouple Input User’ s Guide Side View Bottom V iew V entil ation Hol es U2 80 2A_UG .b ook Pag e 4 Tues day , J anu ary 8 , 2 008 1 0:24 AM[...]

Ge tt ing Sta r te d 1 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 5 P ro d uc t D i me n si ons To p V i e w Front View U2802A 31-Channel T hermocouple I nput U2 80 2A_UG .b ook Pag e 5 Tues day , J anu ary 8 , 2 008 1 0:24 AM[...]

1G e t t i n g S t a r t e d 6 Agil ent U2802 A 31-Channel The rmocouple Input User’ s Guide St andar d Pu rc ha se It ems Check l is t Inspe ct and veri fy t hat you have all t h e f ollowin g it ems upon st and ard pur chase of U2 802A 31- ch ann el the rmoco up le i np ut de vi ce. If t here a re missi ng items, c o ntact the n earest Agil ent[...]

Ge tt ing Sta r te d 1 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 7 Inst alla tion s and Co nfig urati ons Th e U28 02A is use d in c on j unc ti on with the U2 35 5A o r U2 35 6A D A Q. If y o u ar e usi n g the U23 00A S er ies w ith the Agilen t M eas ureme nt Mana ger , f ollo w the step- b y- ste p instructions a s sho wn i[...]

1G e t t i n g S t a r t e d 8 Agil ent U2802 A 31-Channel The rmocouple Input User’ s Guide Figu re 1- 1 U2802 A i nstal lation flow char t A. Check Y our S yst em Requ irement s C. Ins tall the Agilen t IO Libra ries Suite V ersion 1 4.2 or Higher D. Install the DA Q Hard ware Dr iver F . Conne ct Y o ur DAQ Devic e to the PC H. Connec t Y our [...]

Ge tt ing Sta r te d 1 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 9 A. C heck Y our S y st em Req u ir eme nts Bef ore ins talli ng th e Agil ent Measu rement Manager software and D A Q har d ware d riv er , mak e sure y ou r PC meet s the f ollo wing minimu m sy stem requirements fo r installation and data acquisitio n. Process[...]

1G e t t i n g S t a r t e d 10 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide B. Check Y our Pre-Installed IO Libra ries Suite T o ch eck t h e ver sio n o f you r pr e- ins t al l ed IO L i bra ri e s Su i t e foll ow th e instructio ns belo w . 1 Ri ght- click IO Contr o l ic on on y o ur taskbar notific ation are a and th e cont[...]

Ge tt ing Sta r te d 1 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 11 i. If Agile nt IO Libraries Suite version 14.1 or lower has been pre-ins talled If you ha v e Agilent IO L ibraries Su ite v ersion 14.1 or l o we r installed on y our P C , you are re qui red t o un inst a ll the I O Libr aries Sui te. 1 T o perf orm un in sta[...]

1G e t t i n g S t a r t e d 12 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide 1 Di sconnect any USB D A Q d evic e that is connected to y our PC an d cl ose all ot he r applic at ions on y our PC . 2 Ins e r t t he A gilent A utomation- R eady CD into y our CD - ROM dri ve, a nd fol l ow t h e in s t r uc t io n s on yo ur s c re e[...]

Ge tt ing Sta r te d 1 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 13 D. In st all the DA Q Hard wa re Dri ver E. In stall t he Agilen t Me asure ment M anager 1 V e r i f y t h a t y o u h a v e t h e h a r d w a r e d r i v e r i n s t a l l e d . I f n o t , c l o s e a l l o t h e r app licati ons o n yo ur P C and inse rt th[...]

1G e t t i n g S t a r t e d 14 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide 5 If yo u d o not ha v e the Agil ent T& M T oo lk it 2.1 R untime v ersion and /or Mic ros of t .NE T Fra m ework ve rsio n 1. 1 and 2. 0 in st alle d, t he Inst al lShiel d Wiz ard sof tw are p re- req uisi te wi ll app ear as sh own below . 6 Click[...]

Ge tt ing Sta r te d 1 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 15 9 Read the Lic ense Agreemen t an d sel ect I accept the term s in the Li cense Agr eemen t t o p r o c e e d . Y o u m a y c l i c k Print to print a hard cop y of the Agilent License T erm s f o r refe rence. Click Next to pr oce ed . 10 Fill in the Customer [...]

1G e t t i n g S t a r t e d 16 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide 12 Click Install to b egin the i nstal lat ion of Ag ilent M easu rem ent Manage r . 13 Click Fi nish when the instal latio n has c ompl eted. 14 A sh or tcut to this so ftware wil l be cre ated on y our d esktop. NOTE USI NG T HE LIC ENSE D MA TERIALS I [...]

Ge tt ing Sta r te d 1 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 17 F . Co nnect Y o ur DAQ D evice to th e PC G. Ha rd wa re V er ifi ca ti on H. Connec t Y our U2802A t o DAQ 1 Co nne ct U2 802A t o U2 35 5/ 56 A D A Q usi ng t wo 68- pi n SCS I cab les . 2 Con nect 12 V DC po wer su pp ly to the po wer ja ck o n t he rea r p[...]

1G e t t i n g S t a r t e d 18 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide I. Launc h Y our Agilent Meas uremen t Mana ger 1 Doub le - cl ick th e Agi lent Measu rem en t Manag e r soft ware ico n on yo u r deskt op o r go t o Start > All Prog rams > Agilent > M easur ement Mana ger > Agil ent Measu reme nt M anager [...]

Ge tt ing Sta r te d 1 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 19 IVI -COM D rive rs The Agilent IVI - COM drive rs sim plify instrument contro l when y ou are w ork ing in a COM- comp ati ble en vir onment. I VI- COM allo ws y o u to pro gramma ticall y contr ol y o ur i nstrumentatio n and mak e measur ement s while pr ov i[...]

1G e t t i n g S t a r t e d 20 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide app li catio n wi ll co mp ile, l ink, an d ex ecute w ithou t e rr or . Th e test r esul ts, ho we ve r , ma y be qu ite d iff e rent becau se di ffer en t ins trumen ts mea sure and generate sign al s dif f erently. F or more info rmat i on on class- co[...]

Ge tt ing Sta r te d 1 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 21 Programming Environments An IVI- C OM drive r wo rk s well in a variety of a pplication de vel opment env i ronm ent s (AD Es ) be low: ✔ Agil ent VEE ✔ Micr osoft® V i sual Basic® 6 ✔ Vis ual St udio C++ ✔ Visual Basic 7 ✔ C# ✔ Nat io na l Instru[...]

1G e t t i n g S t a r t e d 22 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide 7 Click IV I-COM to op en the IVI- COM Driv er I nstallatio n Menu. 8 Che ck o n t he U 2 300A S erie s an d cli ck In s ta ll and wait fo r the Insta lla tion Dialo g to ap pear . 9 When the Install ati on Dialo g ap pear s, cl ick Next to be gi n th e I[...]

Ge tt ing Sta r te d 1 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 23 12 If you c ho os e a Cu st om set up, the Sel ect Features dial og box w ill app ear . a Cli ck on an y fe atu re in the list t o see th e f e atu re’s de scrip tio n and space req uir emen t. I t is r ecom mended that yo u install the s amp le p r o g r a m[...]

1G e t t i n g S t a r t e d 24 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide U2 80 2A_UG .b ook Pag e 24 Tues d ay, Jan uary 8, 200 8 10:2 4 AM[...]

25 Agil ent U 2802A 31- Channe l Ther mocouple Inp ut Use r’s G u ide Agilent T echnologies 2 Feat ures and F u nct ions Feat ures 26 Appl icati ons 27 Sys t em Ov er v iew 28 Theo ry of Opera tio n 29 F unc tio nalit y of th e Sy ste m 29 Fu nct i on al Bl ock Diag r am 30 This chap ter contains d etails of the prod uct f e at ures, a pplicati o[...]

2F e a t u r e s a n d F u n c t i o n s 26 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide Feat ures The U2802A Thermocouple In put conditioning device is com ple te with the fol low i n g fe a t u re s: ✔ U p to 31 diffe rential in put mode, or 31- sing le ended in puts in v o ltage inp ut mod e. Each o f the 31 channe ls can b e[...]

Featur es a nd F unc tions 2 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 27 App lica tio ns The U2802A Thermocouple In p ut conditi oning device i s designe d f or r obust and de manding industrial applica tions. This p r oduct is su it abl e f or a wide range o f applications in various fields inclu sive of: ✔ Co nsumer elec t[...]

2F e a t u r e s a n d F u n c t i o n s 28 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide System Ov ervie w Figu re 2- 1 System ove rview of U 2802A wit h D AQ The U2 802A i s esse ntiall y an am p lifier mo dule with a b uilt- i n temp erature senso r (thermistor). I n thermo coupl e mode, t he U28 02A inp ut channe l is used to a[...]

Featur es a nd F unc tions 2 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 29 Th eor y o f O per ati on Functionality of the System Figu re 2- 2 Sy s te m fu ncti on al it y bl ock diagr am fo r U 28 0 2A 1 Ther mocou ple v o ltage si gnal s a re dete cted a t the U28 02 A thermo coup le inp uts. 2 Signal is am plified with a gain [...]

2F e a t u r e s a n d F u n c t i o n s 30 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide Functional Block Diagram The bl ock di agra m be lo w i n Figur e 2 - 3 illus trat es t he key func tional co mp one nts of the U2 80 2A. Figu re 2- 3 Fun ction al b lock d iag ram fo r U 2802A U2 80 2A_UG .b ook Pag e 30 Tues d ay, Jan uary 8[...]

Featur es a nd F unc tions 2 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 31 Th e m ajo r fu nc ti on al b lo ck s of t h e U 28 02 A m od ule a re: • Anal og inp ut channe l circ u itry • Col d junctio n senso r • Dig ita l cont rol lo gic • EEPR OM Analog input ch annel circ uitry The analog c ircu itry f or eac h cha nn[...]

2F e a t u r e s a n d F u n c t i o n s 32 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide Bypass mode : I n b y p a s s m o d e , t h e T C n + i n p u t i s r o u t e d d i r e c t l y t o t h e corres pond ing AI ch annel on Re ar Co nnector 1. Th e si ngle- en ded s ignal s t i e d t o T C n + s h o u l d b e r e f e r e n c e d[...]

Featur es a nd F unc tions 2 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 33 Figu re 2- 6 Gro und-r eference d a nd dif ferent i al s ignal sou rc es co nfigur ation in U2802 A Zero mo de: I n z e r o m o d e , t h e p o s i t i v e a n d n e g a t i v e i n p u t s o f t h e instrumentation ampl ifier are shorted together . Th e [...]

2F e a t u r e s a n d F u n c t i o n s 34 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide F or b y pass mode channe ls tha t are con nected to va lid v oltage so urces , the 10 M Ω pu ll- up r esis to r will ca use addi tion al cu rre nt t o f l ow throug h the v olta ge sour ce. Ho we v er , this addit iona l curr ent me asurem e[...]

Featur es a nd F unc tions 2 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 35 Op en Th er mo co up le D e tect i on The U2802A p ro vide s a built- in 10 M Ω r e s i s t o r o n e a c h T C + t e r m i n a l , wh ich is pu lle d up t o t he int er nal + 15 V pow er supp ly rail. Th is r esist or can be enabled or di sable d via th[...]

2F e a t u r e s a n d F u n c t i o n s 36 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide U2 80 2A_UG .b ook Pag e 36 Tues d ay, Jan uary 8, 200 8 10:2 4 AM[...]

37 Agil ent U 2802A 31- Channe l Ther mocouple Inp ut Use r’s G u ide Agilent T echnologies 3 Pin Co nfi gur ation s a nd Assi gnme nts Pi n Confi gu ra tio ns 38 Pi n A s si gn m en ts 38 Pi n D e sc ri pti on 39 Con nec tor Pi no ut 44 This chap ter desc ribed the Agi lent U28 02A 31- chann el thermocoup le inp ut d evice pin configurat ions an[...]

3 Pi n Conf igurations and As signments 38 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide Pi n Conf igur at i ons P in A ssi gnm e nt s Figu re 3- 1 U280 2A pi n assig n ment U2 80 2A_UG .b ook Pag e 38 Tues d ay, Jan uary 8, 200 8 10:2 4 AM[...]

Pin Conf igurat ions and Assi gnments 3 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 39 Pin Desc rip tion Co nnector J7 1 Pin Pin name Descri ption 1 TC1+ In th ermo cou ple mode, TC x+ and T Cx– are the t he rmoco uple di fferenti al inpu t. In vo ltag e mode, singl e ended i nput at TCx+ and GND. TCx – is not con necte d. 2T[...]

3 Pi n Conf igurations and As signments 40 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide 28 TC 22 + TC in put or v ol tage inp ut (See TC1 + /– d e sc ri pt ion ) 29 TC 22 – 30 TC 23 + TC in put or v ol tage inp ut (See TC1 + /– d e sc ri pt ion ) 31 TC 23 – 32 TC 24 + TC in put or v ol tage inp ut (See TC1 + /– d e sc ri[...]

Pin Conf igurat ions and Assi gnments 3 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 41 Co nnector J5 0 Pin Pin name Descri ption 1 GND Mo du le G r ou nd 2 TC16– TC in put or vol tage input (See TC1+ /– de script ion ) 3T C 1 6 + 4 TC15– TC in put or vol tage input (See TC1+ /– de script ion ) 5T C 1 5 + 6 TC14– TC in p[...]

3 Pi n Conf igurations and As signments 42 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide 31 TC 26 – TC in put or v ol tage inp ut (See TC1 + /– d e sc ri pt ion ) 32 TC 26 + 33 TC 25 – TC in put or v ol tage inp ut (See TC1 + /– d e sc ri pt ion ) 34 TC 25 + U2 80 2A_UG .b ook Pag e 42 Tues d ay, Jan uary 8, 200 8 10:2 4 AM[...]

Pin Conf igurat ions and Assi gnments 3 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 43 Co nnector J6 0 1. Re fe r t o th e U 2300A S erie s USB Mu lti fu nctio n D ata A cq uis itio n De v ices Use r’s Gu id e fo r connecti vity Pin Pin name Descr iption 1 C OUNT30 2_CLK Directl y conne cted to DAQ 1 2 C OUN T30 2_GATE Dire ctl[...]

3 Pi n Conf igurations and As signments 44 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide Conne c tor Pin out Rear pa nel pino ut for Conne ctor 1 Figu re 3- 2 Conn ect or 1 p in a ssign men t for U2 355 A and U 23 56A U2 80 2A_UG .b ook Pag e 44 Tues d ay, Jan uary 8, 200 8 10:2 4 AM[...]

Pin Conf igurat ions and Assi gnments 3 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 45 Rear pa nel pino ut for Conne ctor 2 Figu re 3- 3 Conn ect or 2 p in a ssign men t for U2 355 A and U 23 56A U2 80 2A_UG .b ook Pag e 45 Tues d ay, Jan uary 8, 200 8 10:2 4 AM[...]

3 Pi n Conf igurations and As signments 46 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide U2 80 2A_UG .b ook Pag e 46 Tues d ay, Jan uary 8, 200 8 10:2 4 AM[...]

47 Agil ent U 2802A 31- Channe l Ther mocouple Inp ut Use r’s G u ide Agilent T echnologies 4 P ro du ct S pe ci f ic at ion s Gen e ra l Sp ecif ic at ion s 48 Prod uct Ch arac teri stics 49 Sy ste m Accu racy Sp ecifi catio ns 51 Ca lcu la tin g Sy ste m Ac cu ra cy 54 Sys tem T y pica l Perfo rmance 57 Ma king A ccura te T empera t ure Me asur[...]

4 Prod uct Sp eci ficat ions 48 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide Gene ra l Spec ific at ions POWE R CON SUM PTI ON ±12 V DC , 750 m A max imum OPERA T ING ENV IRON MENT • O per at i ng t emp e ra tur e fro m 0 ° C t o 55 °C • Re lative humi dity at 50 % to 85% RH (non-conden sing) • Altitu de up to 2000 meters[...]

Produc t Sp e cifica tions 4 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 49 Produ ct Ch aract eri sti c s GENE RAL CHA RACT ERIST ICS Number of cha nnel s 31 di ffer en tia l and 1 CJC Input volt ag e rang e for vol ta ge mode ±1 0 V (sign a l + com mon m ode) Input volta ge (the rmoco uple mode ) ±1 00 mV Sa mp li ng r ate f o[...]

4 Prod uct Sp eci ficat ions 50 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide O ver v olta g e p r ote cti o n i TC M ode ii • Comm on mo de: ±17 V ( TC+ a nd TC– with res pect to GND) • Diff er enti al mo de: ±7 V (D iff er enti a l volt ag e between TC+ an d TC–) By pa ss m od e • ±20 V (T C+ input w ith re spect to [...]

Produc t Sp e cifica tions 4 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 51 Sys tem Ac cu ra cy Spe cif icat i ons The Agilent U2 802A thermocouple in put measure ment accuracy w ith the U235 5A an d U23 56 A is as shown in Table 4- 1 , Table 4 - 2 , and Table 4- 3 . Ta b l e 4 - 1 U2802 A m easu rem ent a ccu racy with U2 355A o[...]

4 Prod uct Sp eci ficat ions 52 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide Ta b l e 4 - 2 U2802 A m easu rem ent a ccu racy with U2 355 A, at 0 to 1 8 ° C an d 28 to 45 ° C, wi th dif fer ent num ber of av erag ing po int s. Ther mocoup le Me a sur eme nts Acc uracy (U235 5A @ 0 °C to 18 °C a nd 2 8 °C to 45 ° C) T/C Ty p [...]

Produc t Sp e cifica tions 4 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 53 Ta b l e 4 - 3 U2802 A m easu rem ent a ccu racy with U2 356 A, at 0 to 1 8 ° C and 28 to 45 ° C, wi th dif fer ent num ber of av erag ing po int s. Ther mocoup le Me a sur eme nts Acc uracy (U235 6A @ 0 °C to 18 °C a nd 2 8 °C to 45 ° C) T/C Ty p e[...]

4 Prod uct Sp eci ficat ions 54 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide Calc u la tin g Sy ste m Accu ra cy The o v er all measu rem ent syste m com pr ises of th ree m a jor com po nen ts: 1 D A Q (U23 55 A o r U2 356A) 2 Signal Condit ioner (U2802A), which inclu des CJ Sensor error 3 Sen sor (T he r moc o up le s) E r r o r[...]

Produc t Sp e cifica tions 4 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 55 Wi th ze roi n g, t h e of fset er r ors fro m t h e D AQ an d t h e U2 80 2A ca n b e remov ed, and repl aced wit h the zeroing error . Base d on the I TS- 90 Th ermoc oupl e tabl e, a J- type thermocou p le wil l out put 3 3.102 m V at 600 °C, and chan[...]

4 Prod uct Sp eci ficat ions 56 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide Ther e f ore, E THERMOCOUPLE = 0. 75 % × 600 ° C = 4.5 ° C Us ing th e abo ve ind ivid ual com po nen t err or s, the t otal m easur emen t system accu racy is c alculated as belo w . System accu racy without therm ocouple sensor er ror: E TOTA L = S Q[...]

Produc t Sp e cifica tions 4 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 57 Syst em T ypi ca l Pe rform a nce Th erm oelec tric C hara cte rist ics The thermoele ctric char acteri stics f or var ious thermocouple types is sho w n in Figur e 2- 1 . Figu re 4- 1 Ther m oel ect ric cha ract er ist ics fo r vari ous th ermo coupl e t[...]

4 Prod uct Sp eci ficat ions 58 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide T ypica l Error vs . Mea surem ent P erformanc e The U2 80 2A m ea su re ment e rror w i th U2 355 A or U 2356 A at 2 3 ° C ± 5 °C is sh ow n in Fi gur e 2- 2 . Figu re 4- 2 U2 802 A m ea s ure m en t a cc ura cy p lot f or v a rio us th erm o co uple [...]

Produc t Sp e cifica tions 4 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 59 Mak ing Accur ate T em pe ra tur e Me as ur eme nts Thermocouple measurement accuracy is ve r y sen sitiv e to col d junctio n senso r err ors and tem pera tur e gradients a cross the termin als. K eep the modu le a way fr om an y he at sou rc es and d ra[...]

4 Prod uct Sp eci ficat ions 60 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide U2 80 2A_UG .b ook Pag e 60 Tues d ay, Jan uary 8, 200 8 10:2 4 AM[...]

61 Agil ent U 2802A 31- Channe l Ther mocouple Inp ut Use r’s G u ide Agilen t T ech nologi es 5 Calibr ation Ca libr at ion 62 Ca libr atio n I nfo rm ati on 62 Zero ing Func tion 62 Res tore Factor y Calibrat ion 63 This chap ter contains the ca libratio n inf o rmation an d factor y restor e ca li brati on p ro ced ure f or t he Agi lent U2802[...]

5C a l i b r a t i o n 62 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide Ca libr ati on Calibration Informat ion The A gi lent U2802A is fa ctor y cali brated a nd the ca libr ation co nstants are stored in th e EEPROM. During i nitial setup, the cali bratio n constants are re ad f rom th e EEPR OM bef ore an y measu remen ts ar e t[...]

Calibration 5 Agilent U2802A 31-Channe l Thermocoup le Input Use r’s Guide 63 Restore Fa ctory Calibration The Restore Facto r y Calibra tio n f unction in the Agil ent U2802A is use d to restore calibration data fro m user’s settings to fa ctor y original s ettings. T o perform factor y res tore cali bration, f ollo w the step- by- step instru[...]

5C a l i b r a t i o n 64 Agilent U2802A 31-Channe l The rmocouple Input Us er’s Guide U2 80 2A_UG .b ook Pag e 64 Tues d ay, Jan uary 8, 200 8 10:2 4 AM[...]

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