Agilent Technologies e4418b manuale d’uso

Agilent T echnologi es Part no. E441 8-90059 Revision C Septe mbe r 2003 S er v ic e G u id e Ag il ent T ech no log ie s E4 41 8B / E4 41 9B P ower Met ers[...]

ii Agilent E4418 B/E4419B Servic e Guid e © Copyrig ht 1998, 2003Ag ilent T echnol ogies All rights reserv ed. Repro ductio n, adapt ation, or tra nslation withou t prior writt en perm is sion is proh ibi ted, ex ce pt as al lowed under the cop yright la ws. Pri nted in the UK.[...]

Leg a l In f o rm a t io n Agile nt E 4418B/ E4419B Serv ice Guide iii Le ga l In f or m ati on Notice Inform ation conta ined in thi s document is subj ect to chang e without notic e. Agilent T echnol ogies makes no warra nty of any kind with r ega rd to thi s material , includin g, but not li mite d to, the impl ied warranti es of mercha nta bili[...]

Legal I nformation iv Agilent E4418 B/E4419B Servic e Guid e Li mit at ion of W arran ty The foregoi ng warrant y shall not appl y to defects res ul ting from improp er or inad equate m aintena nce by B uyer , Buyer -supplied soft wa re o r inte rfacing, unaut horize d modi fic ation or misus e, operation out side of th e env ironm ental spe ci fic[...]

Equipment Oper ation Agile nt E 4418B/ E4419B Serv ice Guide v Equi pment Oper ati on W ar nin gs a nd Caut i ons This gui de uses warnings and cautions to de note hazard s. W ARNING A warning calls attention to a procedure, practice or the like, wh ich, if not correctly perfor med or adhe r ed to, could result in i njury or the loss of l ife. Do n[...]

Equipment Operat ion vi Agilent E4418 B/E4419B Service Guide Gener al Safety Co nsideratio ns W ARNING Bef o re thi s in s tr u m en t is s w i t che d on, ma k e s ure it h as be en prop erly gr ounded through the protective conductor of the ac po wer cable to a soc ket outle t pr ovided wi th prot ective e arth c ontact. Any inte rr u pt ion of t[...]

Equipment Oper ation Agile nt E 4418B/ E4419B Serv ice Guide vii IEC 101 0-1 Com pliance This inst rument ha s been designe d and t ested in ac cordance with IEC Public ation 1010-1 +A1: 1992 Safety Requi rements for Elec tri cal Equipment for Measur ement, Contro l a nd Labo ratory Us e and has been suppl ie d in a s afe condi ti on. Th e ins truc[...]

List of Re l ated Publications viii Agilent E4418 B/E4419B Servic e Guid e Li st of Rel ate d P ub li c ati on s The Agi le nt E 4418B and Agile nt E4419B Us e r ’ s Gui des are al so av ai la bl e in the follo wing langua ges: • Engl ish Language Us er’ s Guide - Sta ndard • German La ngua ge User ’ s Guide - Option ABD • Spanis h Lang[...]

Sales and Serv ice Offices Agile nt E 4418B/ E4419B Serv ice Guide ix Sale s a nd S erv ice Of fic es For m ore inf ormation a bout Agil e nt T ec hnologies t est and measurement products , applica tions , servic e s, a nd fo r a current sale s office listing, visit our web site: http ://www .agile nt.com Y ou can also cont act one of the following[...]

Sales and Ser vice Offices x Agilent E4418B/E 4419B Se rvice Guide Eur ope: Agile nt T echnol ogies T es t & Meas u re men t Europea n Marketin g Or ganization P .O. Box 999 1 180 AZ Amstelvee n The Netherla nds (tel) (31 20) 547 9999 Latin America: Agile nt T echnol ogies Latin America n Region H eadquarte rs 5200 B lue Lagoon Drive, Suite #9 [...]

Sales and Serv ice Offices Agile nt E 4418B/ E4419B Serv ice Guide xi Re tu rn i n g Y o ur P o wer Met er fo r S er v ic e Use th e info rmation in thi s se ct ion if you need to retu rn your power meter to Agile nt T echnol ogies. Packag e the Power M eter fo r Ship men t Use th e foll owin g steps to pa ckage th e power met er f o r s hipment to[...]

Abou t this G u id e xii Agil ent E4418 B/E4419B Servic e Guid e Ab out th is Gu ide Chapter 1: Specifications This cha pter list s the power mete r’ s specifi cations and de sc rib es how to interpr et the s e sp ec if i ca tio n s. Chapter 2: Perfo rman ce T est s This c hapte r contains pr oc edure s which allo w you to te st t he power mete r[...]

T able of Contents Pa g e Agile nt E 4418B/ E4419B Serv ice Guide Conten ts-1 Spe ci fic at io ns . ..... ..... .... ..... ..... ..... .. ..... ..... .... ..... ..... .... ..... ... .... ..... ..... .... . 1 Intr oduction.... ..... ..... ..... .. ..... .... ..... ..... ..... .... ..... ..... .. ..... ..... .... ..... ... 1 -2 Power Me te r Spe cifi[...]

Conte nts-2 Agilent E4418 B/E4419B S ervice Guide Equipmen t ... ..... .... ..... ..... ..... .... ... .... ..... ..... ..... .... ..... ..... ..... .. .... 2-5 Test Setup .... ..... .... ..... ..... ..... .... ... .... ..... ..... ..... .... ..... ..... .. ..... .... 2- 5 Pro cedure ..... ..... .... ..... ..... ..... .... ... .... ..... ..... ....[...]

Agile nt E 4418B/ E4419B Serv ice Guide Conten ts-3 Pro cedure .... .... ..... ..... ..... .... ..... ... .... ..... ..... .... ..... ..... ..... .. ..... .... . 3-11 Theory of O p eration ... ..... ..... ..... .... ... ..... .... ..... ..... .... ..... ..... .. ..... ..... .... . 1 Intr oduction.... ..... ..... ..... .. ..... .... ..... ..... ....[...]

Conte nts-4 Agilent E4418 B/E4419B S ervice Guide Defi ne the Measu rement Equation .... ... .... ..... ..... .... ... .. ..... .... A-3 Sensi t ivi ty Coeffic ients Ci: .... .. ..... ..... .. ... .... ..... ..... .... ... .. ..... .... A-8 Combined Stan da rd Unc e r tainty uc(y): .... ..... ..... .... ..... ... .. .... A-9 Expanded Unc ert ainty [...]

1 Specificati ons[...]

Sp ecif ica tio ns Intr oduction 1-2 Agilent E4418B/E 4419B Se rvice Guid e In trod uc tio n This ch apte r det ails th e po we r me ter’s specific atio n s and supp lem e nta l cha rac te ris ti cs. Specificatio n s desc ri be the warran ted perform a nc e and apply after a 30 minute w a rm-u p . These specifi c ations are val id over the power [...]

Sp ecif ica tio ns Power Met er Spec ifications Agile nt E4 418B/ E4419B Serv ice Guide 1-3 P owe r Me ter S pec ifi cat io ns Met e r Fre que nc y R ang e 100 kHz to 1 10 GH z, po w er senso r dependent P owe r R ange -70 dBm to + 44 dBm (100 pW to 2 5 W), power sensor de pendent P ower S ens ors Com patible with all Agile nt 848 0 serie s p owe r[...]

Sp ecif ica tio ns Po w e r M e te r S p e ci fi ca t io n s 1-4 Agilent E4418B/E 4419B Se rvice Guid e Ac cu r a cy Instrume ntation Abs o lut e: ± 0.0 2 dB (L og ari th mic ) or ± 0. 5% (Lin ear). ( R efer to th e power sens or l inear ity sp eci fication in y our po wer sen so r m an ual to a ssess over a ll sys t em accu racy .) Relat ive: ±[...]

Sp ecif ica tio ns Power Met er Spec ifications Agile nt E4 418B/ E4419B Serv ice Guide 1-5 1 mW Power Re fe re n ce 1 • P ower Out put : 1.00 mW (0.0 dBm). • A cc ur a cy : (fo r t wo ye a rs ) ± 0.9% (0 to 55 ºC). ± 0.6% (25 ± 10 ºC ). ± 0.5% (23 ± 3 ºC). • F reque ncy : 50 MH z no m ina l . •S W R 2 : 1.06 ma ximum (1 .08 maximum[...]

Sp ecif ica tio ns Power M eter Supp lemental Characteri stics 1-6 Agilent E4418B/E 4419B Se rvice Guid e P owe r Me te r Su p plem enta l Ch ar acter is tic s Measu rement Spe ed Ov er the GP - I B , th re e m ea s ur em e n t sp ee d m o de s ar e a v ail a b l e as sho wn , al on g wi t h th e t yp i c a l ma x i m um m ea s ur em e nt sp ee d f[...]

Sp ecif ica tio ns Power Meter Suppl em enta l Characteristi cs Agile nt E4 418B/ E4419B Serv ice Guide 1-7 Measu rement No ise P ower senso r depen dent (refe r to T able 1-2 an d Table 1-3). A verag ing effects on m easu reme nt nois e. A verag ing ove r 1 to 1 024 readin gs is availa ble for redu cin g noise. T able 1-3 p rovid es th e measureme[...]

Sp ecif ica tio ns Power M eter Supp lemental Characteri stics 1-8 Agilent E4418B/E 4419B Se rvice Guid e T able 1-3 : P o wer Sensor Spec ificatio ns± Po w e r S e n s o r Zer o Drift 1 1. Wi thin 1 hour afte r zero set, at a cons tant te mpera ture , aft er a 24 hour w arm-up of th e power met er . Me a s ur em en t No i s e 2 2. The num be r of[...]

Sp ecif ica tio ns Power Meter Suppl em enta l Characteristi cs Agile nt E4 418B/ E4419B Serv ice Guide 1-9 Sett ling Time 0 to 99% s ettled readin g s over the GP-IB . For A gi lent 848 0 s eries p ower sen sors Manual filter , 1 0 dB decreasing power s tep: T able 1-4: Settling T ime Auto fi lte r , de fa ul t res o lu t ion , 10 dB de cr ea s i [...]

Sp ecif ica tio ns Power M eter Supp lemental Characteri stics 1-10 Agilent E4418 B/E4419B Service Guide For A gilen t E -series powe r senso rs In F AST m ode , wit h in th e ra nge - 5 0 dBm to +17 dBm, fo r a 10 dB decr ea s in g po wer st ep , th e s et t lin g tim e is 1 0 m s 1 for the Agilent E4418 B and 20 ms 1 for the Ag ilent E4419B 1 W h[...]

Sp ecif ica tio ns Power Meter Suppl em enta l Characteristi cs Agile nt E 4418B/ E4419B Serv ice Guide 1-11 Auto fi lte r , de fa ul t res o lu t ion , 10 dB de cr ea s i ng p o we r st ep, nor m al a nd x 2 s pee d m ode s: 10 dB 10 dB 10 dB 60 dB Maximum dBm Minimum d Bm Po w e r Sensor 40 m s 3.4 s 210 m s 70 m s S ettling Times Typi cal Dyna m[...]

Sp ecif ica tio ns Power M eter Supp lemental Characteri stics 1-12 Agilent E4418 B/E4419B Service Guide P ower S ensor Specificat ions Definitions Zero Se t In any powe r meas ur emen t, th e powe r me te r mus t initi ally be se t to zero with no powe r appli ed to the pow er se nso r . Zero se ttin g is acc o m plish e d within th e p owe r m et[...]

Sp ecif ica tio ns Battery Option 001 Oper ationa l Chara cteristi cs Agile nt E 4418B/ E4419B Serv ice Guide 1-13 Bat te ry O pt io n 0 01 Op er at iona l C har ac te ri sti cs The followi ng inform ation descr ibes charac teristic pe rforman ce based at a temper ature of 25 ° C unless o ther w ise no te d. Ch aracte ri stic s des cr ibe produ ct[...]

Sp ecif ica tio ns Gene ral Charact eristic s 1-14 Agilent E4418 B/E4419B Service Guide Gene ral Ch ar ac teris ti cs Rea r P anel Conn ector s Recorder Output(s) Analog 0-1 V olt, 1 k Ω o ut put im pe da n ce, BNC con ne ct or GP-IB All ows commun icat ion w ith an e xtern al GP- IB contr olle r . RS-232/422 Allows communic ation with an externa[...]

Sp ecif ica tio ns Envir onmental Chara cter istics Agile nt E 4418B/ E4419B Serv ice Guide 1-15 En v ir onm enta l Ch arac ter i sti cs General Co nditions Co m p lie s w i t h th e r eq u ir em e n t s of th e E M C D i re ct i ve 8 9/ 3 3 6 / E E C. This includes Ge neric Im mu nity Stan dard EN 50 082-1: 199 2 an d Radiated Interference Standar[...]

Sp ecif ica tio ns General 1-16 Agilent E4418 B/E4419B Service Guide Gene ral Dime ns io ns The following dimensions excl u de fro n t and r ear pane l pro t rusions : 212.6 mm W x 88.5 m m H x 348.3 mm D (8.5 in x 3.5 in x 13.7 in) We i g h t Net Agilent E4418B, 4.0 k g (8.8 lb) - 5.0 kg ( 1 1.0 lb) with opti on 001 Agilent E4419B, 4.1 k g (9.0 lb[...]

Sp ecif ica tio ns Ge ne ra l Agile nt E 4418B/ E4419B Serv ice Guide 1-17 Re mo te Prog ramm i ng Interface GP-IB interfa ce operates to IEEE 488.2. RS-232 an d RS-422 interface s are suppli ed as sta nd ar d. Com ma n d La ngu age SCPI st a n dard in t erf ac e com ma nds . Agilent E4418B is HP 437B cod e com patibl e. HP E4419B is H P 438 A c od[...]

Sp ecif ica tio ns General 1-18 Agilent E4418 B/E4419B Service Guide[...]

2 Pe r f o r m a n c e T e s t s[...]

P erf or mance T ests Intr oduction 2-2 Agilent E4418B/E 4419B Se rvice Guid e In trod uc tio n The procedu res in thi s c hapt er test the power meter’ s elect ri c al perfor mance us i ng the specif ications i n Chapte r 1 as the per formance sta n dards. All t ests c an be per formed wi t hout access t o the in terior of the powe r me te r . A[...]

P er formance T ests Introd uction Agile nt E4 418B/ E4419B Serv ice Guide 2-3 Equi p ment R e qu i re d T able 2-1 lis t s all the equipment r equired fo r the adj ustments and perfor mance tes ts. If subs tituti on s must be made , the equipment u sed mus t meet the cr itic al sp ecific atio ns. T able 2-1: Required Equip men t Equi pmen t Requi [...]

P erf or mance T ests Intr oduction 2-4 Agilent E4418B/E 4419B Se rvice Guid e P erf ormance T est Reco rd Resul ts of the perfo rman ce te sts may be tabula te d in T able 2-7, “P erf orman ce T est Re cord,” o n page 2-2 3 . T he P e rfor manc e T est Rec ord lists all o f the p er form ance test spe cific ation s an d th e acce ptable lim it[...]

P er formance T ests Zero Tes t Agile nt E4 418B/ E4419B Serv ice Guide 2-5 Zer o T e st Spe cification Desc r iptio n After the pow er m ete r is i nitia lly calib rated a nd zer oed, th e change i n th e digit al re ado ut is m onit ore d . This te st als o take s d rift and no is e into ac co un t , si nce d rif t , no i se a nd z e ro re a d in[...]

P erf or mance T ests Zero Test 2-6 Agilent E4418B/E 4419B Se rvice Guid e Pr oced ure The following procedur e should b e per formed fo r the Z ero T est. Note Th e procedure deta i l s the key pres se s requi red on the Agilent E 4418B. F or the Agilent E4419B the equiv alent key pres se s shoul d be perf ormed on both chan nels . 1. Conne ct the[...]

P er formance T ests Instr ument Accu racy Tes t Agile nt E4 418B/ E4419B Serv ice Guide 2-7 Instr u men t Ac cu racy T e st Spe cification Description The power met er acc uracy is verified for variou s power inputs . Ther e are two dif fere nt meth o ds des cribe d he re th at can be used to p erform this te st, alt h ough on e of these methods h[...]

P erf or mance T ests Inst rument Acc uracy Te st 2-8 Agilent E4418B/E 4419B Se rvice Guid e T est S etup Figure 2-2: Instr umen t Accu racy T e s t S etup Pr oced ure The foll owing proc edure should b e performed for t he Instrument Accurac y Te s t . Note Th e procedure deta i l s the key pres se s requi red on the Agilent E 4418B. F or the Agil[...]

P er formance T ests Instr ument Accu racy Tes t Agile nt E4 418B/ E4419B Serv ice Guide 2-9 Note When switch ing th e rang e ca libr ato r to STAN DBY , allo w en ough time for th e r ang e c alibr ator to se ttle to its z er o va lue be fore attemp tin g to zer o the po wer mete r . Th is settlin g wo ul d app ear on the pow er meter displa y as [...]

P erf or mance T ests Inst rument Acc uracy Te st 2-10 Agilent E4418 B/E4419B Service Guide T able 2-3: Inst ru m e nt A ccurac y Re s ult s (F or Indi cation Only ) Note Th e nomin al outp uts for t he 3 µ W, 3 0 µ W , 300 µ W , 3 mW , 10 mW , 30 m W and, 100 mW setting s are 3.16 µ W , 31.6 µ W , 316 µ W, 3.156 mW , 10.03 m W , 31.78 m W , [...]

P er formance T ests Instr ument Accu racy Tes t Agile nt E 4418B/ E4419B Serv ice Guide 2-11 T est P r oce du re 2 Note This test proced ure make s use of a 11683A Range Calibr ator fitted wit h opt io n H01. The measur ement uncer t a i nty of this test procedu re is sign ifican tly low er t han th e pr evio us ly descr ibed method (r efer to App[...]

P erf or mance T ests Inst rument Acc uracy Te st 2-12 Agilent E4418 B/E4419B Service Guide Pr oced ure The foll owing proc edure should b e performed for t he Instrument Accurac y Te s t . Note Th e procedure deta i l s the key pres se s requi red on the Agilent E 4418B. F or the Agilent E4419B the equiv alent key pres se s shoul d be perf ormed o[...]

P er formance T ests Instr ument Accu racy Tes t Agile nt E 4418B/ E4419B Serv ice Guide 2-13 Note When switch ing th e rang e ca libr ato r to STAN DBY , allo w en ough time for th e r ang e c alibr ator to se ttle to its z er o va lue be fore attemp tin g to zer o the po wer mete r . Th is settlin g wo ul d app ear on the pow er meter displa y as[...]

P erf or mance T ests Inst rument Acc uracy Te st 2-14 Agilent E4418 B/E4419B Service Guide 14. Set th e DC cal ibrat or outpu t to the v alues s hown in T able 2-4. Fo r each setti ng, set the filte r lengt h of th e po we r me te r to the co rr es p o n ding va l ue, and ve ri fy th at th e powe r met e r rea din g is within the limi ts sho w n. [...]

P er formance T ests Power Refe rence Le vel Test Agile nt E 4418B/ E4419B Serv ice Guide 2-15 P owe r Refe re nce L evel T es t Description This test v erifies th e power l evel a ccuracy of the internal 5 0 MHz os c ill a t or —a l so cal l ed t he p ow er ref eren ce osc ill a t or . The p o w er re f e re nc e osc illator output is fact ory a[...]

P erf or mance T ests Power Refer ence Level Test 2-16 Agilent E4418 B/E4419B Service Guide If an equivale nt measu reme nt system i s employ ed for pos t- f act or y test, the po wer refere nce osc illat or outpu t can again be set to 1 mW ± 0.4% . Th is settin g is suffic ient to ensu re th at th e pow er r eferen ce osc illat or m eets th e acc[...]

P er formance T ests Power Refe rence Le vel Test Agile nt E 4418B/ E4419B Serv ice Guide 2-17 Equi p ment • T es t po w er met e r: Agi l ent 432 A. • The rmis to r moun t: Agilen t 478A opt ion H75 or H76. • Dig ital vo ltmeter (DVM): Ag ilent 3458 A. T est S etup F i gure 2-4: P ower Reference Lev el T est Setup Pr oced ure Use the foll ow[...]

P erf or mance T ests Power Refer ence Level Test 2-18 Agilent E4418 B/E4419B Service Guide 4. Pr eset th e power met er: Press , th en on the p ow e r me te r . Set th e Agilent 4 32A RANGE switch to Coarse Z ero. Adj ust the front pan el C oar se Z ero co ntro l t o obt ai n a z ero me ter ind icat ion . 5. Zero the Agi lent 432A test p o wer me [...]

P er formance T ests Agil ent E- S eri es Power Sensor Int erface Test Agile nt E 4418B/ E4419B Serv ice Guide 2-19 Agi len t E -Ser ies P ower S en sor In te rfac e T e st The Agilent E-series powe r sens ors have their sensor calib r a tion tabl es store d in EEPROM w hic h enables the frequenc y a nd calibrat i on factor data to b e downl oa ded[...]

P erf or mance T ests Agile nt E-Seri es Power Sensor Functiona l Test 2-20 Agilent E4418 B/E4419B Service Guide Ag ilent E -Seri e s P o w er Se nsor Fu ncti o nal T est Description This test ve r if ie s that the meter /sen so r com bin ation can m ak e RF measu rements. The Agilent E-series powe r sens ors operate over a 90 dB dyna mic range (-7[...]

P er formance T ests Agilent E-Ser ies Power Sensor Funct ional Test Agile nt E 4418B/ E4419B Serv ice Guide 2-21 2. P ress the n . 3. On the power meter press , . W ait approximat el y 10 secon ds for th e wait sym b ol t o d isappe ar . V er ify that th e display read s 0 ± 50 pW . 4. P ress to calibra te the p owe r m ete r . 5. Tu rn the po w [...]

P erf or mance T ests Agile nt E-Seri es Power Sensor Functiona l Test 2-22 Agilent E4418 B/E4419B Service Guide T able 2-6: Functional T est Resu lt Te s t Chan nel A Ov e rl oa d Er ro r Chan ne l B O verl o a d E r ro r (Agi lent E4419B Onl y) Low Range , 30 dB pad Upper Range , 3 0 dB pad Low Ra ng e , no p a d Hig h R a ng e, no p ad[...]

P er formance T ests Perfor m ance Test Record Agile nt E 4418B/ E4419B Serv ice Guide 2-23 P er forma nc e T est R e cord Model Ag ile nt E4418B/E4 419B P owe r Meter T ested by _________ ___________ ___________ ____________ Ser i al Number ________ _____ ______ ___________ _________ Date _________ ______ T able 2-7: P erformance T est Record Te s[...]

P erf or mance T ests Perfo rmance Test Record 2-24 Agilent E4418 B/E4419B Service Guide Out p u t S t an ding W ave Ratio T est 1 N/A ________ ___ ________ ___ 1. 06 1, 2 1.08 1, 3 1. This test is not c hannel related. 2. F or i nstrument s with t he 50M Hz 1mW out put ( power ref ) co nnector mounted on t he fron t p anel. 3. F or inst ruments wi[...]

3 Adjustments[...]

Adjus tments Intr oduction 3-2 Agilent E4418B/E 4419B Se rvice Guid e In trod uc tio n This ch apte r des cr ibe s adju stm e nt s and check s wh ich ensu re p rop e r perfor mance of the power meter . Adj ustments are n ot normall y re q uired on any fixed periodi c basis , and normall y are performed on ly af ter a perfor mance tes t has indicate[...]

Adjus tments Introd uction Agile nt E4 418B/ E4419B Serv ice Guide 3-3 Equi p ment R e qu i re d The adju stment procedu res inc lude a list of rec ommended tes t equipment. The test equipment i s also ident i fied on the t est se tup dia g rams . P ost-Rep air Adjustm ents T ab le 3-1 lists th e ad ju stment s r elate d to re pairs or rep lace men[...]

Adjus tments Power Refer ence Oscillat or Frequency Adj ustment 3-4 Agilent E4418B/E 4419B Se rvice Guid e P ow e r R efe re nc e O sci l la to r F req ue ncy A d jus tm e nt Note Adjustm ent of t he p ow er r ef erenc e osc illator fr eq uenc y may a lso affect the outp u t lev el of the os cilla to r . There fore, after th e frequency is adju ste[...]

Adjus tments Powe r Refer ence Oscillat or Frequency Adjust m ent Agile nt E4 418B/ E4419B Serv ice Guide 3-5 3. Tu rn the po w e r re f e re nc e on by pr es s in g ■ , on the A gilen t E44 18B . ■ , , , on t he Agilent E4419B. 4. Obse r ve the r eading o n the f requency c ounter . If it is 50.0 ± 0.5 MH z, no adju stme nt of t he p ow er r [...]

Adjus tments Power Refer ence Oscillat or Level Adjustment 3-6 Agilent E4418B/E 4419B Se rvice Guid e Power Re feren ce Osc illato r Level Ad ju stme nt Description This test ad justs th e powe r le v el ac curac y of th e in te rnal 5 0 M Hz osc i llat or —also called the power ref erenc e oscill a t or . The pow er ref ere nc e osc illator outp[...]

Adjus tments Power Referen ce Oscilla tor Le vel Adjust ment Agile nt E4 418B/ E4419B Serv ice Guide 3-7 Note The p owe r mete r may be re turne d to the near est A g ilent Te c hnol ogie s of fice to h ave the power r eference o scillator chec ked and/o r adju s ted. F i gure 3-3: Ad justment Se tup F o r th is adju stme nt th e followin g math e [...]

Adjus tments Power Refer ence Oscillat or Level Adjustment 3-8 Agilent E4418B/E 4419B Se rvice Guid e By su bstitu tin g eq uati on 3 into equ atio n 1 and ma ni pu latin g th e res ult you get: Thi s q u a d rat i c ca n be so lv e d to g ive eq ua ti on 2. The definit i on s of t he terms in equation 2 are: •V 0 is t he vol tage meas ured betw [...]

Adjus tments Power Referen ce Oscilla tor Le vel Adjust ment Agile nt E4 418B/ E4419B Serv ice Guide 3-9 3. Con ne ct the equi pmen t as s hown in Fig ur e 3-3. The lead s shoul d be isol ated from g round. Ensure tha t the pow er refer ence osci llator i s off . Ens ur e that bot h the pow e r me ter un der tes t and the A gilen t 43 2A hav e been[...]

Adjus tments Power Refer ence Oscillat or Level Adjustment 3-10 Agilent E4418 B/E4419B Service Guide 14. Remo ve the power meter ’s cover and adjust A2R90 un til the DVM indi cat es t h e calcu l ated value of V 1 . Refer to Figure 3- 4 for th e pos ition of A2R90 : F igure 3-4: A2R9 0 A d justment Locat ion Measu rement Un certainty Refer to App[...]

Adjus tments Displ ay Brightne ss and Co ntrast Adjustment Agile nt E 4418B/ E4419B Serv ice Guide 3-11 Disp lay Br ig ht ne ss and C ont ra st Adj us tm ent In tr oduct ion The following procedur e should be perfor med whenever a f r ont pane l ass emb ly or proces so r a ssemb l y are replac ed. The b rig htn ess is cont rolle d a uto matic ally [...]

Adjus tments Displ ay Brightness and Contr ast Adjustment 3-12 Agilent E4418 B/E4419B Service Guide[...]

4 Theory of Operation[...]

Theory of Oper ation Intr oduction 4-2 Agilent E4418B/E 4419B Se rvice Guid e In trod uc tio n This chapter descri bes how each of the power meter’ s assembli es operat e. A bloc k diagram is inc luded at the en d of the chapt er giving y ou an overall view of the power meter’ s operat io n.[...]

Theory of Opera tion A1 Power Su pply/Batte ry Charg er Agile nt E4 418B/ E4419B Serv ice Guide 4-3 A1 P ower Su pply/Ba tter y Ch arger The A1 po wer supp ly/batt ery charger is a 20 W , 47 to 44 0 H z swit ching power su pply prod uci ng three dc voltages, (+5 V , +12 V , -12 V) used to powe r the su basse mb l ie s, and a constan t cur ren t sup[...]

Theory of Oper ation A2 Processor Assem bly 4-4 Agilent E4418B/E 4419B Se rvice Guid e A2 Pro ces sor Ass em bly The proces sor assembly co nta i ns the mic roc on tr ol l er and assoc iated ci rcui ts , t he p o w er -on / stan dby co ntrol a nd swit c hin g , the 1 mW ref e rence ca libr ator , the recor der out puts , TTL input/out put, a nd t h[...]

Theory of Opera tion A2 Processor Asse mbly Agile nt E4 418B/ E4419B Serv ice Guide 4-5 The LCD co ntr ol le r on the A 3 fron t p ane l asse m bl y is conf ig ur ed as a memory mapped per ipheral , and as s uch r equires on ly to b e fed wi th the appropr iate address , data and control lines from the micro con t roll er ci rcuits . Th e bias volt[...]

Theory of Oper ation A2 Processor Assem bly 4-6 Agilent E4418B/E 4419B Se rvice Guid e The microcont roller c ircuits that c ontrol a ll the above function s, an d prov ide platfor m for th e system softwa re to r u n on, comprise t he mi cro co nt ro lle r it s el f , me m ory , an d clo ck an d l og ic ci rcui ts. Th e lo g ic ci rcuit s h ave th[...]

Theory of Opera tion A3 Front Panel Assembly Agile nt E4 418B/ E4419B Serv ice Guide 4-7 A3 Fr ont P ane l As sembl y The fro nt pane l ass emb ly is m ad e up of a liquid crystal display (LCD) , a keypad and, depending on the power meter option, a power reference cab le assembl y and a s ensor cable a ssem bly(s). Ther e are tw o inputs t o the fr[...]

Theory of Oper ation A4 Comms Assem bly 4-8 Agilent E4418B/E 4419B Se rvice Guid e A4 Co mms Assemb ly The comms a ssemb ly cont a ins the cir cuit ry r equir ed f or remote co ntro l of the pow er meter . This assembly supports parallel and ser ial i n terfaces . The G P -IB inte rface is su pporte d b y a pr ot ocol c ontr olle r int egrat ed ci [...]

Theory of Opera tion A5 Daughter Asse m bly Agile nt E4 418B/ E4419B Serv ice Guide 4-9 A5 Daught er As semb l y The A5 daughter assembl y is loaded ver tically into th e A2 proc essor ass embly . Th e Agilen t E4418B h as fiv e connecto rs on the A5 daughter assemb ly: • two 6-wa y co nnect or s r oute the sig nal lin es between the recharg eabl[...]

Theory of Oper ation A6 Measurem ent Assembly 4-10 Agilent E4418 B/E4419B Service Guide A6 M ea sur em ent A sse mbly Ther e is one me asurement assembly in the Agilent E4418B an d two in the Agilent E 4419B. The meas urement assembly ampli fies a nd convert s the c hopped AC signal produc ed by th e po wer sen sor (either Agilen t 8480 se ries p o[...]

Theory of Opera tion A6 Measurem ent Asse mbly Agile nt E 4418B/ E4419B Serv ice Guide 4-11 The D SP chip con trols th e logic w hich s et s the cho pper d rive r voltag e an d fr eque nc y co n trol . F or the : • Agilen t 8 480 series powe r se n sors th is is 0 V an d -10 V at 217 Hz. • Agi le n t E -s e rie s p ow er se ns o rs thi s i s + [...]

Theory of Oper ation A8 Rechargeab le Battery Assem bly 4-12 Agilent E4418 B/E4419B Service Guide A8 R echa rgea ble Bat ter y As se mbly The A8 Rech argeable Battery Assembly al lows the EPM power meter with option 001 fitted to operate wh en no AC power in p ut is availab le. The batter y pack contain s a he alth mon ito rin g cir cu it wh ich th[...]

Theory of Opera tion A8 Rechar geable Ba ttery Asse mbly Agile nt E 4418B/ E4419B Serv ice Guide 4-13 Remove this pag e and repl ace with pullout.f m.[...]

Theory of Oper ation A8 Rechargeab le Battery Assem bly 4-14 Agilent E4418 B/E4419B Service Guide[...]

5 Repla ceable Pa rts[...]

Replac eable Part s Intr oduction 5-2 Agilent E4418B/E 4419B Se rvice Guid e Intr od u cti on This cha pter conta ins detai ls of some of th e higher le vel compone nts and asse m b lie s which c an be ordered from Agile nt T echnolo gies. It a ls o details how to ass em ble and dis ass emble the power meter for repair . T o ord er parts con ta ct [...]

Replaceab le Parts As se mbl y Pa r t Nu mbe rs Agile nt E4 418B/ E4419B Serv ice Guide 5-3 Assem bly P art Num bers Re f eren ce Design ator De scription Ag il ent Part Number A1 Power Sup ply Assem bly Refe r to “ Power Supp ly Assem bly T ype s”, on pa ge 5-5 to h elp wi th the sele ction. 0950-26 49 or 0950-36 81 Power Supply a nd Charge r [...]

Replac eable Part s Assemb ly Par t Numbers 5-4 Agilent E4418B/E 4419B Se rvice Guid e A304 Fron t P ane l Asse mbly for: Agile nt E 4419B Opti on 003 New E 4419-6100 2 Refurb ished E441 9-69002 A4 Co m ms Ass embly E441 8-60012 A5 Daught er Assembly for: Agile nt E4418B E441 8-60015 Daught er Assembly for: Agile nt E4419B E441 9-60003 A6 Measure m[...]

Replaceab le Parts As se mbl y Pa r t Nu mbe rs Agile nt E4 418B/ E4419B Serv ice Guide 5-5 Powe r Suppl y Assembl y T ypes Before order ing an A1 Power Supply Asse mb ly , check connec tor J 2 and co m pare i t to Fi gure 5- 1 and Figur e 5-2 a nd selec t the appropri ate model. The J2 c onne ctor is found nea rest the fan ass em bly . Figur e 5-1[...]

Replac eable Part s Front Panel Connector Repa ir 5-6 Agilent E4418B/E 4419B Se rvice Guid e Fr on t Pane l Co nne ctor Rep air The fron t pan el assembly is an excha nge assembly . However , if front pa nel sens or cabl es or power refer enc e c able s are fault y the y sho uld be replace d by ordering the approp riate kit and follo w ing the asse[...]

Replaceab le Parts Firmware Upgr ades Agile nt E4 418B/ E4419B Serv ice Guide 5-7 F ir mw are Upgr ad es The power mete r ’ s firmware can be upgrade d us ing a PC. The current f irmware is availa ble on t he W orld W ide W eb. A fi rmware upg ra de p a ckage (Part Number E4418- 61035)ca n be purc hased f or users who d o not have ac cess to the [...]

Replac eable Part s Assemb ly and Dis assem bl y Guideli nes 5-8 Agilent E4418B/E 4419B Se rvice Guid e Assem bly a nd Di sasse mbly Gu id eli nes The gui de lines in thi s section desc ribe the remo val and replac ement of the major as s emblie s in the Agi lent E4418B and Ag ilent E4419B power meters . Once an ass embly has bee n repla ced, refer[...]

Replaceab le Parts Assem bly and Di sassem bl y Guideli nes Agile nt E4 418B/ E4419B Serv ice Guide 5-9 Remov ing th e A1 Powe r Supply A ssembly 1. Rem ove th e power supply cov er by lifti ng it out. 2. Disconne ct t he line input module from the chassis and po wer s upply ass em bl y . 3. Disconne ct t he cable assembl y f rom the power sup ply [...]

Replac eable Part s Assemb ly and Dis assem bl y Guideli nes 5-10 Agilent E4418 B/E4419B Service Guide Rem oving the A2 P rocessor Assembl y 1. Rem ove th e A5 daugh te r and A6 measure ment assembl ie s as descri bed on page 5-1 2. 2. Move the A2 plasti c suppor t brac ket to it s forwar d pos ition usi ng the two sid e leve rs, uncli p the f lexi[...]

Replaceab le Parts Assem bly and Di sassem bl y Guideli nes Agile nt E 4418B/ E4419B Serv ice Guide 5-11 Removing the A4 Comms Assembly 1. Rem ove th e A2 proces sor , A5 daugh ter and A6 measure ment as s emblie s a s shown on pa ge 5-10 and pag e 5-12. 2. Disconne ct t he line power m odule from th e A1 p ower suppl y and the chassi s. 3. Disconn[...]

Replac eable Part s Assemb ly and Dis assem bl y Guideli nes 5-12 Agilent E4418 B/E4419B Service Guide Remov ing th e A5 Dau ghter or A 6 Measu r ement Ass emblies 1. Disconne ct the flex circuit from measur ement a ssembly . Note Ca re should be ta ken when disc onne cting th e flex circui t from the me asu re m en t a s se mb ly. The fl ex ci rcu[...]

Replaceab le Parts Assem bly and Di sassem bl y Guideli nes Agile nt E 4418B/ E4419B Serv ice Guide 5-13 Removing the A7 Fan Assembly 1. Rem ove th e A1 power suppl y ass embly a s shown on page 5-9. 2. Rem ove th e pins which at tach the fan to the chas sis. 3. Rem ove th e fan cable connec tor from the A2 proces so r assemb ly to re lease the f a[...]

Replac eable Part s Assemb ly and Dis assem bl y Guideli nes 5-14 Agilent E4418 B/E4419B Service Guide Rem oving the Power Meter RAM Bat tery (BT 1) 1. Rem ove th e A2 proces sor assembly as de scribed on pa ge 5-10. 2. Rem ove t he A2J1 li nk to dis c onnect the batte ry fr om the res t o f the ci rcuit r y . 3. V erify the b attery p rotect ion c[...]

Replaceab le Parts Assem bly and Di sassem bl y Guideli nes Agile nt E 4418B/ E4419B Serv ice Guide 5-15 Re mo vin g t he A 3 Fr ont Pa ne l As se m bly 1. Disconne ct t he followi ng ca bles fr om th e A2 pr ocessor a ssembly: n power re ference se mi -rig id (When re pla cing use the to rque s detailed on page 5-1 8.) n front pa nel keypad n fron[...]

Replac eable Part s Assemb ly and Dis assem bl y Guideli nes 5-16 Agilent E4418 B/E4419B Service Guide Rep lacing the Fr ont Pa nel Power Sens or Cable Assem blies 1. Rem ove th e front panel from the powe r meter . (Refer to “Remo ving the A3 Fron t P ane l As se mbl y” , on page 5-15 for details on removi ng the front pane l.) 2. Repl ace the[...]

Replaceab le Parts Assem bly and Di sassem bl y Guideli nes Agile nt E 4418B/ E4419B Serv ice Guide 5-17[...]

Replac eable Part s Assemb ly and Dis assem bl y Guideli nes 5-18 Agilent E4418 B/E4419B Service Guide Rep lacing the Front P anel Power Referen ce Ca ble Assembly 1. Rem ove th e front panel from the powe r meter . (Refer to “Remo ving the A3 Fron t P ane l As se mbl y” , on page 5-15 for details on removi ng the front pane l.) 2. Repl ace the[...]

Replaceab le Parts Assem bly and Di sassem bl y Guideli nes Agile nt E 4418B/ E4419B Serv ice Guide 5-19 Re pla c i ng th e Re a r P an e l Pow e r Se nsor Ca bl e As se m bl ie s (O ptions 002 and 003 ) 1. Disas semble the power mete r to all ow ac cess to the rear pane l co nnecto rs. This is done by following s teps 1 through 3 of the A4 comms a[...]

Replac eable Part s Assemb ly and Dis assem bl y Guideli nes 5-20 Agilent E4418 B/E4419B Service Guide[...]

Replaceab le Parts Assem bly and Di sassem bl y Guideli nes Agile nt E 4418B/ E4419B Serv ice Guide 5-21 Rep lacin g the R ear Panel P o wer R eferen ce C ab le Asse mb ly (O ption 003) 1. Disas semble the power mete r down to all ow ac cess to the rear pane l conne ctors. (Refer to “Re m oving the A4 Comms As sembly”, on p age 5-1 1 .) 2. Repl[...]

Replac eable Part s Assemb ly and Dis assem bl y Guideli nes 5-22 Agilent E4418 B/E4419B Service Guide Rep lacing the R ear Panel R ecorder Outp ut(s) Ca ble Assembly 1. Disas semble the power mete r down to all ow ac cess to the rear pane l conne ctors. (Refer to “Re m oving the A4 Comms As sembly”, on p age 5-1 1 ). 2. Repl ace the rec o rde [...]

Replaceab le Parts Assem bly and Di sassem bl y Guideli nes Agile nt E 4418B/ E4419B Serv ice Guide 5-23 Rep lacing The Chas sis Assembly 1. Remove th e Power Meter Cover as shown in “Re m oving the Power Mete r Cover” , on page 5-8. 2. Disas semble the power mete r down to all ow ac cess to the rear pane l conne ctors (Refer to “R emoving th[...]

Replac eable Part s Assemb ly and Dis assem bl y Guideli nes 5-24 Agilent E4418 B/E4419B Service Guide[...]

6 T roublesh ooting[...]

T r oub leshoot ing Intr oduction 6-2 Agilent E4418B/E 4419B Se rvice Guid e In trod uc tio n This chap ter enables qu alified s e rvice pe rso nnel to diagn ose susp ect ed fault s w ith th e po wer me ter Rm t I/O (Rem ote Input /O utpu t) s ign al li nes and RS232/42 2 serial port. If there is a problem when atte mp tin g to use the RS232/ 422 s[...]

T roubl eshooting Introd uction Agile nt E4 418B/ E4419B Serv ice Guide 6-3 Fi gure 6-1: Trouble sh ooting Guide -Upper Window TTL Output Star t Powe r U p mete r PO ST Pa s s ? Co nnect Sens or to Cha nnel A An y Se ns or Errors? Pres s S yst em /In puts More Ser vic e Sel f T e st Instrum ent Self T est Se lf T est Errors? Using D V M E2373A or e[...]

T r oub leshoot ing Intr oduction 6-4 Agilent E4418B/E 4419B Se rvice Guid e A Se lec t Preset/lo cal Conf irm Me as /S et up Limits Limits On TTL Outp ut TTL Output On , Fa il O/P L ow Ye s P ower down m eter . Disconnec t ac power and batte ry if fitted. Remove A2 Proc essor as sy , as direc ted on pag e 5-9, to ac cess the Comms Asse mbly con ne[...]

T roubl eshooting Introd uction Agile nt E4 418B/ E4419B Serv ice Guide 6-5 Fi gure 6-2: T roubleshooting Guide - Lower W indow TTL Output Star t Powe r U p meter PO ST Pa s s ? Co nnect Sens or to Cha nnel A An y Se ns or Errors ? Sel ec t S yst em /In puts More Ser vic e Sel f T e st Instrum ent Self T est Self T est Errors ? Using D V M E2373A o[...]

T r oub leshoot ing Intr oduction 6-6 Agilent E4418B/E 4419B Se rvice Guid e A Sel ec t Preset/lo cal Confirm Low er Win dow - using Meas/Set up Li mi ts Li mi ts On TTL Out put TTL Out put On, Fail O/P Low Ye s P ower down meter . Disconnec t ac power and b atter y i f fitted. Rem ov e A 2 Proces so r assy , a s dir ected on p age 5-9, to acces s [...]

T roubl eshooting Introd uction Agile nt E4 418B/ E4419B Serv ice Guide 6-7 Fig u r e 6-3: T roubleshooti n g Gu ide - TTL Inputs Star t Powe r U p mete r POS T Pa s s ? Con nect Sen sor to Ch annel A An y Sensor Errors? Sel ec t Sy s te m/Inputs More Ser vic e Sel f T e st Instrum ent Self T est Se lf T est Errors? End Ye s No A Sel ect No Inv est[...]

T r oub leshoot ing Intr oduction 6-8 Agilent E4418B/E 4419B Se rvice Guid e A B Did pow er meter channel s ze ro ? Apply T TL log ic 1 l ev el t o RJ45 co nnector. pin 5 wr t pin 8. A ppl y TTL l ogic 0 p ulse to RJ 45 connect or pin 6 wr t pin 8. See U ser’s Guide chap ter 2 for ti ming. Did Channe l A CAL? Is the meter singl e or dual c hanne [...]

T roubl eshooting Introd uction Agile nt E4 418B/ E4419B Serv ice Guide 6-9 B Remove A2 Proce ssor Assy (see chapter 5) to ga in access to the Co mmunicat ions A ssembly co nnector. Measur e resista nce between R mt I/O c onnector pin 6 and connec tor J 4 pin 43. Meter readin g 470 Ω +/− 10% Measu re resistan ce between Rmt I/O c onnector pin 5[...]

T r oub leshoot ing Intr oduction 6-10 Agilent E4418 B/E4419B Service Guide F i gure 6-4: Tr oubleshooting Gu i de - RS232/422 I nterface Start Po w e r u p met er POST P ass? Whi ch POST T e st fai l ed? Sel ect Sys tem/Input s Remo te Inte rf ace Select I nterfac e RS422 C onnect RS2 32 S elf T est C onnector to RS232/4 22 C onnector on rear pa n[...]

Meas ure ment Uncert ai nty Anal ysi s – Instrum ent Accur acy T es t Agile nt E4416A/E441 7A Servic e Guide A-1 Appendix A Mea s ur ement Un ce r t ai nt y A nal ys is – Instru men t Accu ra cy T est Note The Measure ment Uncerta inty Anal ysis de scri bed i n t his Ap pend ix us es d iff erent te st e qui p men t f ro m th a t li ste d i n t [...]

Meas ure ment Uncert ai nty Anal ysi s – Instrum ent Accur acy T es t Meas urement Int roduction A-2 Agi le nt E4416A/E441 7A Service Guid e Me as urem e nt In trod u cti on In the Instru ment Accuracy te s t the DUT measures power le vels output from the test sta tion from –25dBm t o + 20dBm. A mo dified 8482A sen s or i s use d to perform th [...]

Meas ure ment Uncert ai nty Anal ysi s – Instrum ent Accur acy T es t Mea surement Introd ucti on Agile nt E4416A/E441 7A Servic e Guide A-3 Un certa inti es 1. The re is no unc erta in ty invo lved wit hin the 8482 A sensor , as a rela tive po wer is bei ng measur ed. Bef ore any mea su reme nt is mad e, an equiva lent vol tage to 0d Bm is ap pl[...]

Meas ure ment Uncert ai nty Anal ysi s – Instrum ent Accur acy T es t Meas urement Int roduction A-4 Agi le nt E4416A/E441 7A Service Guid e The Measure ment Uncert ai nty is not cal cul ated from dif ferent sens or and power me te r c om b in ati on s, r a th e r it i s ta ke n c are o f in th e C u st om er L i m it s peci f i cati on se tti ng[...]

Meas ure ment Uncert ai nty Anal ysi s – Instrum ent Accur acy T es t Mea surement Introd ucti on Agile nt E4416A/E441 7A Servic e Guide A-5 St anda rd Uncertainty u (x i ): T able A-1 shows the sta ndard deviat ion of the 30 reading s from the DUT at various power le vels. T able A-1: Standard Uncertainty Resul ts The distrib utions are all norm[...]

Meas ure ment Uncert ai nty Anal ysi s – Instrum ent Accur acy T es t Meas urement Int roduction A-6 Agi le nt E4416A/E441 7A Service Guid e Worst case error on 0.1V rang e: Worst case error on 1V rang e Worst case error on 10V rang e V oltage Erro r Distribution S tandard Uncertainty 2.375 uV Rect an gula r 1.371uV V oltage Erro r Distribution S[...]

Meas ure ment Uncert ai nty Anal ysi s – Instrum ent Accur acy T es t Mea surement Introd ucti on Agile nt E4416A/E441 7A Servic e Guide A-7 Worst case error on 15.8V ma ximu m power settin g The rela tions hip between the applied volt age from the Univ ersal So urce to the corre s pondi ng power is giv en from: 1mW = 0 .14493m V This is a linear[...]

Meas ure ment Uncert ai nty Anal ysi s – Instrum ent Accur acy T es t Meas urement Int roduction A-8 Agi le nt E4416A/E441 7A Service Guid e By using the DMM Uncerta intie s cal culat ed pre vio usly the wors t ca se volt age a nd corre s pondi ng power errors ca n be calc ulated. Sen sitivity Co efficien t s Ci: The parti al deriv atives of the [...]

Meas ure ment Uncert ai nty Anal ysi s – Instrum ent Accur acy T es t Mea surement Introd ucti on Agile nt E4416A/E441 7A Servic e Guide A-9 Co m bined S t andard Uncert ainty u c (y): Ther e is no corr e lati on as soci ated w ith th i s mea surem ent Hence: T able A-3 sh ows the combine d stand ard unc ert ainty at all the power le ve ls fr om [...]

Meas ure ment Uncert ai nty Anal ysi s – Instrum ent Accur acy T es t Meas urement Int roduction A-10 Agile nt E4416A/E441 7A Servic e Guide[...]

Meas uremen t Uncert ai nty Anal ysi s – Power Ref ere nce Level T est Agile nt E4416A/E441 7A Servic e Guide B-1 Appendix B Measuremen t Uncerta inty Anal ysis – Powe r Refer e nce Leve l T e st[...]

Meas ure ment Uncert ai nty Anal ysi s – Power Reference Leve l T es t Meas urement Int roduction B- 2 Agi lent E4 416A/E 4417A Servic e Guide Me as urem e nt In trod u cti on In the Power Reference Leve l T est, the outp ut from the DUT’ s 1mW Power Ref conne ctor is measure d. A 432A Power Me ter and an 8 478B H01 Power S en sor are requi red[...]

Meas uremen t Uncert ai nty Anal ysi s – Power Ref ere nce Level T est Mea surement Introd ucti on Agile nt E4416A/E441 7A Servic e Guide B-3 where, P s is th e r efl ec ti o n co e ffic ie n t of th e so u rce ( i. e. th e D UT ) a n d P d is the ref l ectio n coef fici e nt o f the 8478B detector . Hence, Con s i d er th e m e asu r e m e nt s [...]

Meas ure ment Uncert ai nty Anal ysi s – Power Reference Leve l T es t Meas urement Int roduction B- 4 Agi lent E4 416A/E 4417A Servic e Guide : The equation above i nclude s the worst-case mismat ch magni tude 2P s P d and is in th e form wher e var ious powers can be mult iplied by the equat ion to find worst-c ase pow e r l ev e ls wit h re sp[...]

Meas uremen t Uncert ai nty Anal ysi s – Power Ref ere nce Level T est Mea surement Introd ucti on Agile nt E4416A/E441 7A Servic e Guide B-5 A normal dis tribut ion is assumed, as the 345 8A Manua l has not s pecif ie d the ty pe of dis tributi on us ed on the measurement . Bo th V 0 an d V 1 values are calc ulated by su btracting V ref from V c[...]

Meas ure ment Uncert ai nty Anal ysi s – Power Reference Leve l T es t Meas urement Int roduction B- 6 Agi lent E4 416A/E 4417A Servic e Guide Cons ider t he mode l bel ow: An est imate of the modul i of Pd and Ps are each le ss than a spec ified va lue. Ps and Pd each l i e within a circl e of rad ius P . Assum ing P d and Ps have equal proba bi[...]

Meas uremen t Uncert ai nty Anal ysi s – Power Ref ere nce Level T est Mea surement Introd ucti on Agile nt E4416A/E441 7A Servic e Guide B-7 So u(Ms) from the equat ion above equa ls: Misma tc h Unc ertainty U(Ms) wors t cas e Cali bratio n facto r The calibra tion factors s upplied with the power sensor take i nto a ccount t he performa nce of [...]

Meas ure ment Uncert ai nty Anal ysi s – Power Reference Leve l T es t Meas urement Int roduction B- 8 Agi lent E4 416A/E 4417A Servic e Guide Res ist ance The uncer taint y of the resi stance meas ureme nt on the 3458A DMM is given from: with: - Conditions : - 1 Y ear Cal an d tempe rature varia nce +/- 5°C with out ACAL Refer enc e : - 3458A O[...]

Meas uremen t Uncert ai nty Anal ysi s – Power Ref ere nce Level T est Mea surement Introd ucti on Agile nt E4416A/E441 7A Servic e Guide B-9 T able B-1: Measure ment Repeatabi lity Re sults Me a surem en t ADJUST REF . REF . LEV EL TEST 1 0.9995489 51 0.99949 9495 2 0.9995413 33 0.99955 4257 3 0.9994490 78 0.99941 4037 4 0.9995469 94 0.99950 940[...]

Meas ure ment Uncert ai nty Anal ysi s – Power Reference Leve l T es t Meas urement Int roduction B- 10 Agile nt E4416A/E441 7A Service Guid e The readi ngs in T abl e B-1 are in mill i-W att s, the refo re the S ta ndar d Dev iatio n (wor se ca se) is : - U (Rep) = 0.057 µ Wa tt s Sen sitivity Coeff icient s (Ci) The se nsitivit y coef ficient [...]

Meas uremen t Uncert ai nty Anal ysi s – Power Ref ere nce Level T est Mea surement Introd ucti on Agile nt E4416A/E441 7A Servic e Guide B-11 Usin g the above va lues g ives Ci V co mp V co mp d d PM 2V 1 V 0 – () 4RCF M s --------------------- ------- - 2.129 10 4 – × V Ω --- - == = Ci V 1 V 1 d d PM 2V co mp 2V 1 – 4RCF M s ----------[...]

Meas ure ment Uncert ai nty Anal ysi s – Power Reference Leve l T es t Meas urement Int roduction B- 12 Agile nt E4416A/E441 7A Service Guid e Co m bined S t andard Uncert ainty ( u c(y )) 1 Us ing Agil ent’ s stand ard 9 5. 5% conf idenc e the cove rage f actor is k = 2.0 0 Exp anded Uncert ainty The expa nded unce rt ainty i s: U= 3.030 µ W [...]

Index I ndex-1 Agilent E441 8B/E4419 B Servi ce Guide A A1 power s upply/Batte ry Charger assem bly 4- 3 A2 p ro ces so r as se mbl y 4-4 A3 fron t pan e l asse m b ly 4-7 A4 interf ace assembly 4- 8 A5 daughter assembly 4- 9 A6 m e a su r em ent a s s e m bly 4-10 abso lute accur acy, s p ecificat ion 1-4 accur acy of pow er re fere nce 1-5 accur [...]

Index-2 Agil ent E4418 B/E4419B Servic e Guide fron t panel rep air 5- 6 G GP-IB c onn ec t or ch a r a ct er i sti c 1-14 H humidit y c harac teristic 1-15 I IEC 1010- 1 1- vii in strument accur acy tes t 2-7 inter face assembly 4-8 L leg al info rm ati on 1-iii lev el adjus tmen t 3-6 li ne pow e r charact eristi c 1-14 M markings 1-vi measur eme[...]

Agile nt E 4418B/ E4419B Serv ice G uide Inde x- 3 repl aceable pa rts 5- 2 ret u rn i ng f or se rvi c e 1-xi Rmt I/O 1-14 RS232 c onn ec t or ch a r a ct er i sti c s 1-14 RS422 c onn ec t or ch a r a ct er i sti c s 1-14 S safet y 1-v , 1-16 sal es a nd se rv ice off ice s 1-i x serv ice of fices 1-ix packagin g for 1- x i retu rn ing fo r 1-xi [...]

Index-4 Agil ent E4418 B/E4419B Servic e Guide[...]