Manuale d’uso / di manutenzione del prodotto 5220A del fabbricante Fluke
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® 5220A Transcondu ctance Amplifier Instruction Manual PN 491936 June 1979 R ev. 3, 6/97 © 1997 Fluke Corporation. All rights reserved. Printed in USA All product names a re trademarks of their respective comp ani es.
LIMITED WARRANTY AND LIMITATION OF LIABILITY Each F luke produ ct is war ranted t o be free fr om defects in mat erial a nd workm anship u nder normal u se and s ervice. The warranty period is one year and beg ins o n the date of shipm ent. Parts, pro duct rep airs, a nd servi ces are warr anted for 90 day s.
i Table of Contents Sec tion Tit le Pag e 1 Introduction and Spec ificat ions ........................................................ 1-1 1-1. Introducti on .......................................................................................... 1-1 1-2.
5220A Instruction M anua l ii 3-8. Preamplif ier ...................................................................................... 3-6 3-9. A6 Driver ......................................................................................... 3-7 3-10.
Contents (c ontinued) iii 4-40. Resistor R13 ..................................................................................... 4-17 4-41. Troubleshooting.................................................................................... 4-18 5 List of Replaceabl e Part s.
5220A Instruction M anua l iv.
v List of Tables Table Title Page 1-1. Accessories ............................................................................................................ 1- 2 1-2. Specification s .................................................................
5220A Instruction M anua l vi.
vii List of Figures Figure Title Page 5220A Transconductanc e Amplifi er ...................................................................... x 1-1. Outline Drawing s ..................................................................................
5220A Instruction M anua l viii 6-1. Rack Mounting Kit ................................................................................................ 6-2 6-2. Rack Slide Kit ...........................................................................
Contents (c ontinued) ix.
5220A Instruction M anua l x ajs36f.eps 5220A Transconducta nce Amplifi er.
1-1 Section 1 Introduction and Specifications 1-1 . Introduct ion The Model 5 220A is a tra nsconduc tance a mpli fier desig ned to op erate as either a stand alone unit o r an extens ion of th e Fluke Mode l 5100 Serie s Calibrato r.
5 2 20A Instruction M anua l 1-2 selection switches ar e insi de the 522 0A. Refer to Se ction 4 o f this manual fo r informa tion on how to prop erly set the lin e power switches. Accessor ies ava ilable fo r use w ith th e 5220A are listed an d descr ibed in T able 1-1.
Introduction and Specifications Spec i ficat ions 1 1-3 Table 1-2. Specifi cations (con t.) Electromagnetic Compat ibility This instrum ent is des igned t o operate in St andard L aboratory environments where in electrom agnetic environm ent is hi ghly controlled.
5 2 20A Instruction M anua l 1-4 Table 1-2. Specifi cations (con t.) Genera l Load Capability Drives all resistiv e and c apacitive loads consis tent with c urrent and compliance v oltage c apability . For induc tive loads greater th an 1 µ H and les s than max imum ind uctiv e loads, output curren t is limited to 1 6 A rms (22.
Introduction and Specifications Spec i ficat ions 1 1-5 ajs01f.wmf Figure1-1. Outline Drawings.
5 2 20A Instruction M anua l 1-6.
2-1 Section 2 Operating Instructions 2-1 . Introduct ion This section of the manual c ontai ns info rmation c oncern ing the ins tallatio n and oper ation of the Mo del 5220A tra nsconduc tance Amp lifier. It is recom mended tha t the con tents o f this sect ion be re ad and unde rstood b efore a ny attemp t is made to op erate the unit.
5 2 20A Instruction M anua l 2-2 2-4. Fuse Repla cem ent 2-5. AC Line Fuse The ac lin e fuse is accessi ble by way o f a rea r-pane l fuse h older located to the left o f the input power conn ector.
Operating Instructions Operatin g Feature s 2 2-3 ajs02f.wmf Figure 2-1. Control s, Indicators, and Connectors.
5 2 20A Instruction M anua l 2-4 Table 2-1. Controls, I ndicators, a nd Connectors Ref. No Name Function 1 STATUS Indicat ors Three LEDs that light on an individ ual bas is to indic ate that the 5220A has exc eeded an op erating lim it. When the limit c onditi on is detec ted the 5220A is s witched to t he stan dby mode.
Operating Instructions Operatin g Notes 2 2-5 Table 2-1. Controls, I ndicators, a nd Connectors ( cont.) Ref. No Name Function 8 Power Connec tor Provides the mea ns of conn ecting t he 5220A to ac line power by way of a 3-wire power cord . 9 Fuse Holder Houses the ac line f use and allows easy ac cess for fuse replac ement.
5 2 20A Instruction M anua l 2-6 2-13. Input Vol tage Selection, Front/ Rear Selection o f the f ront or rear termi nals for co ntrol v oltage input is manu ally acco mplish ed by pressing th e INPUT push bu tton switc h on the front pa nel.
Operating Instructions Operatin g Notes 2 2-7 connected to the outpu t before t he conditi on can be c leared. Over complian ce is detec ted as an outpu t voltage o uts ide the ran ge o f +4 V dc or 3 V rms a c. Output cur rent i n excess of 20 A w ill cause an overc urrent indicat ion.
5 22 0A Instruction M anua l 2-8 ajs03f.wmf Figure 2-2. Maxim um Load In ductance vs Frequency.
Operating Instructions Operatio n 2 2-9 ajs04f.wmf Figure 2-3. Typical Transcondu ctance Error for Inductiv e Loads 2-20. Operat ion The follow ing proce dure is sugg ested for oper ating the 5 220A. Wit h refe rence to the previous paragraphs p roceed as f ollows: 1.
5 2 20A Instruction M anua l 2-10 7. Determine the active output term inals (fr ont or rea r) by connecting a short jumpe r wire betw een th e front-p anel C URRE NT OU TPUT term inals and then pre ssing th e OPR/S TDBY switch . If th e OVER COMP LIANC E LED lights , the re ar ou tput terminals a re active.
3-1 Section 3 Theory of Operation 3-1 . Introduct ion This section of the manual c ontai ns an ove rall func tional descript ion fol lowed by a detailed c ircuit ana lysis of the 5220A.
5 2 20A Instruction M anua l 3-2 ajs05f.wmf Figure 3-1. 5 2 20A Fu nctional Bloc k Diagram.
Theory of Operation Overall Fun ction al Descrip tion 3 3-3 The transcondu ctance ampli fier is a three -stage, cl osed-lo op amplif ier whos e feedba ck signal is p roport ional to th e 5220A outpu t (load) c urrent. I t consists of the A5 Pream p, the A6 Driver, the A7 Output, and a precisio n four-t ermina l shunt.
5 2 20A Instruction M anua l 3-4 3-5. Digit al Section The logic p ortion of the 5220A con trols the seq uencing o f input re lays ( front /rear) and other con trol sign als tha t turn the trans conducta nce amp lifier o n and off . It also p rovides drive co mmands to light appropria te fron t panel status LEDs.
Theory of Operation Circ uit An alys is 3 3-5 The A4 Regu lator is designed to conve rt the ac outpu ts fro m the thre e remain ing secondary w indings of T1 into th ree se ts of isol ated and reg ulated voltag es: +5 V dc, +15/-15 V dc, and +5 V dc ISO ( isolated).
5 2 20A Instruction M anua l 3-6 3-8. Preamplifier The A5 Preampl ifier, as shown i n Figure 3-4, is a high-gain amplif ier des igned to acc ept a front/re ar pane l input signal and prov ide an ampl ified outp ut to the A6 Drive r stag e of the tran sconduc tance ampl ifier.
Theory of Operation Circ uit An alys is 3 3-7 the rate a t which th e input vo ltage is applie d to the A5 Preamp lifier wh en the 522 0A is switched fro m stan dby to ope rate. Th is is n ecessa ry to preven t a step output wh ich, if applied to an induct ive load, woul d result i n an overvolt age trans ient, forc ing the 5220A back to standb y.
5 2 20A Instruction M anua l 3-8 string is u sed as a voltage sou rce to s et the quiesce nt bias fo r the r emain ing stag es of the complemen tary A7 Drive r and A7 Outpu t. Variable resis tor R13 is used t o set the in itia l bias voltage. ajs10f.wmf Figure 3-5.
Theory of Operation Circ uit An alys is 3 3-9 3-10. A7 Output The A7 Output is a d iscre te-co mponent, complem entary -output, hig h-cu rrent amp lifier which serv es as th e final out put stage o f the t ransco nductanc e amplif ier. See Figu re 3 -6.
5 2 20A Instruction M anua l 3-10 3-11. A8 Analog Control The A8 Analog Contro l Assembly, a s shown in F igure 3 -7, contain s an over compliance detector, an ove rcurrent detector and two TTL -to-FET level sh ifters. The detection circuits are used to switch th e 5220A to standby whe n an over curren t or ove rcomplian ce condition oc curs.
Theory of Operation Circ uit An alys is 3 3-11 it were a log ic leve l. That is, voltage s from 0 to an a pproxi mate 2 V thr eshold are considered a low logic le vel.
5 2 20A Instruction M anua l 3-12 ajs13f.wmf Figure 3-8. A10 Logic Simplified Bl ock Diagram Loss or in terrup tion of th e +15/-1 5 V dc suppl y output c auses the Line Mon (moni tor) input from the power supp ly to go low.
Theory of Operation Circ uit An alys is 3 3-13 input is presen t. Under no rmal oper ating c ondition t he rese t command is high at U9-10 and low at U3-10. When the 5 220A is switch ed from r emote to loca l opera tion the lo cal/ remote log ic triggers monosta ble U11-10 in the reset logic c ircuit.
5 2 20A Instruction M anua l 3-14 The shift-r ight mode is selected when flop-f lop U17-1 re sponds to an oper ate co mmand (D-input low) and d rives the regis ter’ s S0 input h igh and t he S1 inpu t low.
Theory of Operation Circ uit An alys is 3 3-15 indicates sta ndby, high ind ica tes ope rate. The not Opera te sign al is rec eiv ed fro m the A11 MIS Bu s Inte rface a nd is effe ctive o nly wh en the 522 0A is in the re mote con trol mode. In the h igh sta te, the signal cl ears fli p-flop U1 0-9 to invok e th e standby mo de.
5 2 20A Instruction M anua l 3-16 3-19. Failure St atus Logic The failure statu s logic cons ists o f three D-t ype flip-f lop (U16 -1, U16-13, and U17-13) and their as socia ted logic ga tes and d rivers. I ts func tion is to store failu re conditi ons detected by o ther pa rts of the A1 0 Logic and to drive t he fron t panel STATUS ind icators.
Theory of Operation Circ uit An alys is 3 3-17 enabled so th at a statu s read c an take pla ce when BC0 and BC2 go high. Statu s read causes the w /not R line to go low for th e duration o f the BC 0 and BC 2 inputs .
5 2 20A Instruction M anua l 3-18.
4-1 Section 4 Maintenance 4-1 . Introduct ion W Warning These servicing instructions are for use by qualified personnel only. To avoid electric shock, do not perform any servic ing other than that contained in the operation i nstructions unless you are qualified to do so.
5 22 0A Instruction M anua l 4-2 4-2. Servic e Inform ation The 5220A is warra nted fo r a per iod of 1-yea r upon delive ry to the o rigina l purchaser . The warranty i s loca ted on the back of the titl e page. Factory au thorized c alibrat ion and s ervice for each Fluk e produc t is av ailab le at vari ous worldwi de loca tions.
Maintenance General Ma inte nan ce 4 4-3 ajs15f.wmf Figure 4-1. Int ernal Component/Asse mbly Locat ions Caution To prevent component damage observe static awareness precautions during instrument disassemb ly/assembly. Refer to the yellow insert sheet following Secti on 1.
5 2 20A Instruction M anua l 4-4 4-7. I nternal Co mponents/Assemblies All interna l switc hes, fus es, and ca librati on adjus tments c an be acc essed by removin g the top cover and the lar ge inner cover from the 5220A. The location o f each of the applicable com ponen ts is shown in Figure 4-1.
Maintenance General Ma inte nan ce 4 4-5 4-11. A6 Driver and A7 Output Assembly Removal The A6 Driv er and A7 O utpu t PCB Assem blie s comp rise a p lug-in assembly refer red to in this procedure a s the A6 Drive r/A7 Output . Use the fol lowing procedu re to re move the A6 Driver /A7 Output: 1.
5 22 0A Instruction M anua l 4-6 4-14. Fuse Replacement 4-15. Ac Line Fuse The ac lin e fuse is accessi ble by way o f a rea r-pane l fuse h older located to the left o f the input power conn ector.
Maintenance General Ma inte nan ce 4 4-7 ajs16f.wmf Figure 4-2. Lin e Voltage Selectio n 4-18. Output Terminal Selection, Front/Rear Either the front o r rear o utput termina ls (but not b oth simulta neously ) may be selected to provide the c urrent output conne ctions.
5 22 0A Instruction M anua l 4-8 Caution To ensure proper instrumen t operation make sure that both screws are installed and that they are both in either the FRONT or REAR locations. 1. Disconnec t the 5220A from line power. 2. Remove both th e top and large inner cover s from th e 5220A.
Maintenance Perform ance Test 4 4-9 4-22. Front Panel Tests Use the fo llowing p rocedure to check the opera tion of the 5220A f ront-pa nel contro ls and LEDs: 1. With th e unit in the stan dby mode, connect jumpe r wires betwe en the en abled (front/r ear) ou tput ter minals .
5 2 20A Instruction M anua l 4-10 4-24. DC Accuracy and Line Regulation The follow ing proce dure is use d to chec k the dc accurac y of the 5220A outpu t curre nt: 1. Connect the pr ecisio n shunt to the en abled ou tput te rminals on the 522 0A. 2. Connect th e DVM to the sen se ter minals on the pre cision shunt.
Maintenance Perform ance Test 4 4-11 7. Set the 5220A to the st andby mod e. 8. Disconnect th e load r esistor a nd the dist ortion ana lyzer fro m the 5220A out put terminal s.
5 2 20A Instruction M anua l 4-12 4. Increase th e ac vol tage ca libra tor outp ut in 1.0V r ms incr ements. The 5 220A should switch to the standby mod e at between 20.0 and 24.0 V rms. The OVERCURRENT LED should also l ight. 5. Set the ac vo ltage ca libra tor ou tput to zero volts.
Maintenance Calibration Ad justme nts 4 4-13 4-30. Init i al Conditions Before star ting th e foll owing procedu res, cond ition the 5220A as follows : 1. Disconnec t all inpu t and rem ote co nnectio ns to th e 5220A, and c onnect a sho rt jumper w ire betw een the selected ou tput t ermin als.
5 2 20A Instruction M anua l 4-14 4-33. Output Bias Adjustment This procedur e is used to adjust the bias cu rrent for both the A6 Drive r and the A7 Output. The b ias adjust ment (R13) is loc ated on the A6 Driver PCB Ass embly. 1. Connect th e ac vol tage calib rator to the front-p anel VO LTAGE IN PUT term inals on the 5220A.
Maintenance Replacemen t of Se lected Com ponents 4 4-15 8. Set the 5220A to the st andby mod e. 9. Disconnec t the shu nt and vo ltmeter from the 5220A ou tput ter minal s. 4-36. Overcurrent Adjustment This procedur e is used to adjust the overcu rrent trip leve l of the 5220A.
5 2 20A Instruction M anua l 4-16 4-39. Resistors R11 and R12 Resisto rs R11 and R 12 are asso ciate d with th e Input O ffs et Adjus tment pro cedu re and the setting of the ZERO ADJ poten tiomete r R6. Use the fo llowing p rocedure t o selec t the proper repl acements for R11 and R1 2: 1.
Maintenance Replacemen t of Se lected Com ponents 4 4-17 Table 4-4. Rep lacement R esistors for R11 and R1 2 DVM Reading ( ± mV dc ) Selected Valu e for R11/R 12 Fluke P art Number 0.87 to 0. 174 1.00 k Ω 168229 0.175 to 0. 261 2.00 k Ω 235226 0.
5 22 0A Instruction M anua l 4-18 Table 4-5. Rep lacement R esistors for R13 Corrected DVM Indication (m V dc) Selected Valu e for R13 ( Ω ) Fluke Part Number 102.000 to 101 .800 1740 Ω 35775 6 101.800 to 101 .600 1500 Ω 37694 7 101.600 to 101 .
Maintenance Troublesh ooting 4 4-19 ajs17f.wmf Figure 4-3. Test Point Location/Id entification.
5 22 0A Instruction M anua l 4-20 ajs18f.wmf Figure 4-4. Flowc hart Summary of Mai nframe and Digital S ection Troubleshooting G uide.
Maintenance Troublesh ooting 4 4-21 Table 4-6. Mainfra me and Digital Se ction Trouble shooting Guide Step Instruction Yes No Go to 1 Set the 5220A PO WER switc h to OFF and d isconnec t the unit from line power. 2 2 Remove the top cover and the larg e inner cov er from the 52 20A.
5 2 20A Instruction M anua l 4-22 Table 4-6. Mainfra me and Digital Se ction Trouble shooting Guide ( cont.) Step Instruction Yes No Go to 15 Check the line v oltage switc h settings on A2 Tra nsformer Assem bly. They s hould be set to comply with the local line voltage.
Maintenance Troublesh ooting 4 4-23 Table 4-6. Mainfra me and Digital Se ction Trouble shooting Guide ( cont.) Step Instruction Yes No Go to 33 The mainframe an d digital s ection are opera tional; the transconduc tance ampl ifier (A5, A 6, A7) is defec tive.
5 22 0A Instruction M anua l 4-24 ajs19f.wmf Figure 4-5. Flowc hart Summary of A nalog Sectio n Troubleshooting G uide.
Maintenance Troublesh ooting 4 4-25 Table 4-7. Analog Se ction Trouble shooting Guide Step Instruction Yes No Go to 1 Complete the tr oubles hooting p rocedur e given in Table 4-6 . 2 2 Set the 5220A POWER s witch to OFF. 3 3 Connect a jum per wire be tween the fr ont pane l VOLTAGE INPUT terminals.
5 22 0A Instruction M anua l 4-26 Table 4-7. Analog Se ction Trouble shooting Guide (cont.) Step Instruction Yes No Go to 19 Set the 5220A to the operate mode and read the DVM .
5-1 Section 5 List of Replaceable Parts 5-1 . Introduct ion This section contai ns an i llustrat ed list o f repla ceable parts for 52 20A. Pa rts are l isted by assemb ly; alp habetized by refe rence de signato r. Each asse mbly i s accomp anied by a n illustra tion show ing the location o f each pa rt and its refe rence des ignato r.
5 2 20A Instruction M anua l 5-2 • Fluke sto ck numbe r • Descript ion (as given und er the De scrip tion hea ding) • Quanti ty • Instru ment Mode l, Serial Nu mber, and F irmware Numbe rs 5-3 .
List of Replaceable Parts Service Ce nters 5 5-3 A11 MIS Bus Interface PCB Assemb ly 491266 C A13 Output Termi nation PCB Assemb ly 491274 B.
5 22 0A Instruction M anua l 5-4 Table 5-1. 5220A Final A ssembly Reference Designator Description Fluke P art No. Total Quantity A1 h Motherboard PC B Assem bly 49120 9 1 A2 Power Transformer As semb.
List of Replaceable Parts Service Ce nters 5 5-5 Table 5-1. 5220A Final A ssembly ( cont.) Reference Designator Description Fluke P art No. Total Quantity H11 Was her, Lock, Int ernal, Ste el, #4 110403 2 H12 N ut, Machine, H ex, Stee l, 4-40 110635 2 H13 S crew, Mac hine, PH, P, Steel, 6-32 x 0.
5 22 0A Instruction M anua l 5-6 Table 5-1. 5220A Final A ssembly ( cont.) Reference Designator Description Fluke P art No. Total Quantity MP18 Output Bus, Plus- Aft 486542 1 MP19 Output Bus, Spacer 4.
List of Replaceable Parts Service Ce nters 5 5-7 Table 5-1. 5220A Final A ssembly ( cont.) Reference Designator Description Fluke P art No. Total Quantity MP50 Foot, Bail Stand 292870 4 MP51 Spacer, Capacitor 489484 2 MP52 Filter, Retainer 576967 1 MP54 Nameplate, 0.
5 2 20A Instruction M anua l 5-8 ajs20f.wmf Figure 5-1. 5220A Fi nal Assembl y.
List of Replaceable Parts Service Ce nters 5 5-9 ajs21f.wmf Figure 5-1. 5220A Fi nal Assembl y (cont.).
5 22 0A Instruction M anua l 5-10 ajs22f.wmf Figure 5-1. 5220A Fi nal Assembl y (cont.).
List of Replaceable Parts Service Ce nters 5 5-11 ajs23f.wmf Figure 5-1. 5220A Fi nal Assembl y (cont.).
5 2 20A Instruction M anua l 5-12 ajs24f.wmf Figure 5-1. 5220A Fi nal Assembl y (cont.).
List of Replaceable Parts Service Ce nters 5 5-13 ajs25f.wmf Figure 5-1. 5220A Fi nal Assembl y (cont.).
5 2 20A Instruction M anua l 5-14 ajs26f.wmf Figure 5-1. 5220A Fi nal Assembl y (cont.).
List of Replaceable Parts Service Ce nters 5 5-15 ajs27f.wmf Figure 5-1. 5220A Fi nal Assembl y (cont.).
5 2 20A Instruction M anua l 5-16 ajs28f.wmf Figure 5-1. 5220A Fi nal Assembl y (cont.).
List of Replaceable Parts Service Ce nters 5 5-17 Table 5-2. A1 Moth erboard PCB Assembl y Reference Designator Description Fluke Part No. Total Quantity J10, J20, J 30, J40, J50, J 70, J90 Connector, PCB Ed ge, Rec., 0.150 CTR, 40 Positi on 42255 0 7 J1 Header, 1 Row, 0.
5 2 20A Instruction M anua l 5-18 Table 5-3. A2 P ower Transformer Ass embly Reference Designator Description Fluke Part No. Total Quantity F4 – F7 Fuse, 0.25 x 1.25 , 0.5 A, 250 V, S low 109322 4 H1 Screw, Machine, PH , P, Steel, 8-32 x 0.25 0 228890 8 H2 Screw, Machine, PH , P, Steel, 6-32 x 0.
List of Replaceable Parts Service Ce nters 5 5-19 Table 5-4. A3 C apacitor B us PCB Assembl y Reference Designator Description Fluke Part No. Total Quantity C1 – C8 Capacitor, AL, 50 ,000 µ F, +100-10 %, 15 V, H i Term 432525 8 CR1, CR3 Diode, SI, 50 PIV, 20.
5 22 0A Instruction M anua l 5-20 ajs38f.wmf Figure 5-4. A3 Cap acitor Bus PCB Assembly.
List of Replaceable Parts Service Ce nters 5 5-21 Table 5-5. A4 R egulator PCB Assembly Reference Designator Description Fluke Part No. Total Quantity C9, C10, C16, C 17 Capac itor, AL, 47 00 µ F, +7.
5 22 0A Instruction M anua l 5-22 ajs39f.wmf Figure 5-5. A4 Regulator PCB Ass embly.
List of Replaceable Parts Service Ce nters 5 5-23 Table 5-6. A5 Pr eamplifier PCB Assembly Reference Designator Description Fluke Part No. Total Quantity C1, C2 Capac itor, CER, 100 pF, ± 2 %, 1 00 V, COG 512848 2 C3, C5, C6 Capacitor, CER, 0.
5 2 20A Instruction M anua l 5-24 Table 5-6. A5 Pr eamplifier PCB Assembly (cont .) Reference Designator Description Fluke Part No. Total Quantity R19 Resistor, M F, 422 Ω , ± 1 %, 0.125 W, 10 0 PPM 288506 1 R21, R23 Resis tor, CF, 1 k, ± 5 %,, 0.
List of Replaceable Parts Service Ce nters 5 5-25 ajs40f.wmf Figure 5-6. A5 Preamplif ier PCB Assembly.
5 2 20A Instruction M anua l 5-26 Table 5-7. A6 Dri ver PCB A ssembly Reference Designator Description Fluke Part No. Total Quantity C1 Capacitor, Poly ester, 0.
List of Replaceable Parts Service Ce nters 5 5-27 Table 5-7. A6 Driver PCB Asse mbly (cont.) Reference Designator Description Fluke Part No. Total Quantity R28, R29 Res istor, CF, 6.8 k, ± 5 %, 0. 25 W 368761 2 R30, R31 Res istor, CC, 10 Ω , ± 10 %, 0.
5 2 20A Instruction M anua l 5-28 Table 5-8. A7 Out put PCB Assembly Reference Designator Description Fluke Part No. Total Quantity H1 Screw, Machine, PH , P, Steel, 4-40 x 0.37 5 152124 2 H2 Washer, Lock, Int ernal, Ste el, #4 110403 2 H3 Nut, Hex, S.
List of Replaceable Parts Service Ce nters 5 5-29 ajs42f.wmf Figure 5-8. A7 Output PCB Assembly.
5 2 20A Instruction M anua l 5-30 ajs43f.wmf Figure 5-8. A7 Output PCB Assembly (c ont.).
List of Replaceable Parts Service Ce nters 5 5-31 Table 5-9. A8 Analog Co ntrol PCB Assembly Reference Designator Description Fluke Part No. Total Quantity C1 Capacitor, CER, 0.10 µ F, ± 20 %, 5 0 V, X7R 853650 1 C2 Capacitor, Polyester, 0. 22 µ F, ± 10 % , 100 V 436113 1 C3 Capacitor, TA, 0.
5 22 0A Instruction M anua l 5-32 ajs44f.wmf Figure 5-9. A8 Analog Contro l PCB Assembly.
List of Replaceable Parts Service Ce nters 5 5-33 Table 5-10. A 9 Front Panel PCB A ssembly Reference Designator Description Fluke Part No. Total Quantity C1 Capac itor, CER, 0.22 µ F, ± 20 %, 50 V, Z5U 309849 1 DS1 – DS9 L ED, Red, PCB mount, Lum inous Intens ity = 0.
5 2 20A Instruction M anua l 5-34 Table 5-11. A 10 Logic PCB Assembl y Reference Design ator Description Fluke Part No. Total Quantity C1, C3, C4 Capacitor, Mica, 100 pF, ± 5 %, 500 V 148494 3 C2 Capacitor, TA , 4.7 µ F, ± 20 %, 25 V 161943 1 C5 Capacitor, TA , 2.
List of Replaceable Parts Service Ce nters 5 5-35 ajs30f.wmf Figure 5-11. A10 Logi c PCB Assembly.
5 2 20A Instruction M anua l 5-36 Table 5-12. A 11 MIS Bus I nterface PCB Assembly Reference Designator Description Fluke Part No. Total Quantity C1 Capac itor, TA, 4. 7 µ F, ± 20 %, 2 5 V 16194 3 1 C2 Capac itor, TA, 22 µ F, ± 20 %, 1 5 V 423012 1 C3, C4 Capacitor, CER , 0.
List of Replaceable Parts Service Ce nters 5 5-37 ajs31f.wmf Figure 5-12. A11 M IS Bus PCB Assembly.
5 2 20A Instruction M anua l 5-38 Note The A12 shunt assembly is a sugg ested non-r epairab le assem bly. Table 5-13. A 12 Shunt Assem bly Reference Designator Description Fluke Part No. Total Quantity H1 Screw , Machine, SEMS, PH, P, Ste el, 6-32 x 0.
List of Replaceable Parts Service Ce nters 5 5-39 ajs32f.wmf Figure 5-13. A12 Shunt A ssembly.
5 2 20A Instruction M anua l 5-40 Table 5-14. A 13 Output Termin ation PCB Assembly Reference Designator Description Fluke Part No. Total Quantity C1 Capacitor, CER, 0.02 5 µ F, 20 %, 100 V , Z5W 168435 1 C2 Capacitor, CER, 0.1 µ F, +80-20 %, 25 V, Z5U 369199 1 R1 Resistor, MF, 40.
List of Replaceable Parts Service Ce nters 5 5-41 Table 5-15. A 14 Extender PCB Assembl y Reference Designator Description Fluke Part No. Total Quantity H1 Screw, Machine, SEMS, PH, P, Steel, 6-32, 0.250 178533 4 H2 Rivet, S-Tub, Oval, Stee l, 0.118 x 0 .
5 2 20A Instruction M anua l 5-42.
6-1 Section 6 Option and Accessory Information 6-1 . Introduct ion This section of the manual d ocu ments the options and acce ssories av ailab le for u se with the 5220A. Curren tly, the re are no op tions, a nd the ac cessories are limit ed to a choic e of two rack-moun ting k its and a precisio n curren t shunt for calib ratio n purpose s.
5 2 20A Instruction M anua l 6-2 ajs45f.wmf Figure 6-1. Rack M ounting Kit.
Option and Accessory Inf ormation Acce ssorie s 6 6-3 6-4. Rack Slide Kit (M00-280-610) The 5220A can be ra ck mounted in a 24-i nch deep equip ment rack us ing the Rack Sl ide Kit, model M00-2 80-6 10. Use the follow ing procedure to insta ll the ki t: 1.
5 2 20A Instruction M anua l 6-4 ajs46f.wmf Figure 6-2. Rack Slide Kit.
7-1 Chapter 7 Schematic Diagrams.
5220A Instruction M anua l 7-2 5220A-1001 (Sheet 1 of 2) ajs47f.wmf Figure 7-1. Int erconnect Diagram.
Schematic Diagrams 7 7-3 ajs48f.wm Figure 7-1. Int erconnect Diagram (co nt.).
5220A Instruction M anua l 7-4 ajs49f.wmf Figure 7-2. Chassis Wiring.
Schematic Diagrams 7 7-5 ajs50f.wmf Figure 7-2. Chassis Wiring (cont .).
5220A Instruction M anua l 7-6 ajs51f.wmf Figure 7-3. Power Supp ly.
Schematic Diagrams 7 7-7 ajs52f.wmf Figure 7-3. Power Supply (cont.).
5220A Instruction M anua l 7-8 ajs53f.wmf Figure 7-4. A5 Preamplif ier PCB Assembly.
Schematic Diagrams 7 7-9 ajs54f.wmf Figure 7-4. A5 Preamplifier PCB Asse mbly (cont.).
5220A Instruction M anua l 7-10 ajs55f.wmf Figure 7-5. A6 Driver and A7 O utput PCB Assembli es.
Schematic Diagrams 7 7-11 ajs56f.wmf Figure 7-5. A6 Driver and A7 Output PCB Assemb lies (cont.).
5220A Instruction M anua l 7-12 ajs57f.wmf Figure 7-6. A8 Analog Contro l PCB Assembly.
Schematic Diagrams 7 7-13 ajs58f.wmf Figure 7-6. A8 Analog Contro l PCB Assembly ( cont.).
5220A Instruction M anua l 7-14 ajs59f.wmf Figure 7-7. A9 Fro nt Panel PCB Assembly.
Schematic Diagrams 7 7-15 ajs60f.wmf Figure 7-7. A9 Fro nt Panel PCB Assembly ( cont.).
5220A Instruction M anua l 7-16 ajs61f.wmf Figure 7-8. A10 Logic PCB Assembly.
Schematic Diagrams 7 7-17 ajs62f.wmf Figure 7-8. A10 Logic PCB Assembly (c ont.).
5220A Instruction M anua l 7-18 ajs63f.wmf Figure 7-9. A11 MIS Bu s Interface PCB Ass embly.
Schematic Diagrams 7 7-19 ajs64f.wmf Figure 7-9. A11 MIS Bu s Interface PCB Assembly (cont.).
5220A Instruction M anua l 7-20.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Fluke 5220A è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Fluke 5220A - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Fluke 5220A imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Fluke 5220A ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Fluke 5220A, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Fluke 5220A.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Fluke 5220A. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Fluke 5220A insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
