Instruction/ maintenance manual of the product e4418b Agilent Technologies
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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.
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.
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.
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.
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.
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.
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 .
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 .
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 .
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.
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.
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.... ..... ..... ..... .. ....
Conte nts-2 Agilent E4418 B/E4419B S ervice Guide Equipmen t ... ..... .... ..... ..... ..... .... ... .... ..... ..... ..... .... ..... ..... ..... .. .... 2-5 Test Setup .... ..... .... ..... ..... ..... .... ... .... ..... ..... ..... .... ..... ..
Agile nt E 4418B/ E4419B Serv ice Guide Conten ts-3 Pro cedure .... .... ..... ..... ..... .... ..... ... .... ..... ..... .... ..... ..... ..... .. ..... .... . 3-11 Theory of O p eration ... ..... ..... ..... .... ... ..... .... ..... ..... .... ...
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): .
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 .
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 depend.
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 .
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.
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 ,.
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.
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 .
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 .
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 .
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.
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 .
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.
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 .
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.
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.
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 .
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.
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.
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 .
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 .
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 .
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 .
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 .
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 .
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.
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.
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.
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 .
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 .
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.
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.
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 .
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.
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.
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 .
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.
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 _________ ___________.
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 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 .
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.
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 .
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 .
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 .
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.
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.
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 .
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 .
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.
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.
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 t.
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 .
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.
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).
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 .
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 .
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.
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.
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.
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 .
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.
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.
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.
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 .
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.
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 .
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 .
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.
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.
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.
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.
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 .
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.
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.
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.
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.
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.
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.
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.
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.
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 Ch.
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.
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 Ch.
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.
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.
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.
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.
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.
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.
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.
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.
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 d.
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.
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.
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 .
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.
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 .
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.
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 .
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 c.
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 .
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.
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 Un.
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 .
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.
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.
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.
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.
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 .
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 .
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.
Index-4 Agil ent E4418 B/E4419B Servic e Guide.
An important point after buying a device Agilent Technologies e4418b (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Agilent Technologies e4418b yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Agilent Technologies e4418b - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Agilent Technologies e4418b you will learn all the available features of the product, as well as information on its operation. The information that you get Agilent Technologies e4418b will certainly help you make a decision on the purchase.
If you already are a holder of Agilent Technologies e4418b, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Agilent Technologies e4418b.
However, one of the most important roles played by the user manual is to help in solving problems with Agilent Technologies e4418b. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Agilent Technologies e4418b along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
