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Bedienungsanleitung Agilent Technologies n3304a

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  • Agilent Technologies n3304a - page 1

    USER’S GUIDE Agilent Tech nologies DC Electronic Loads Models N3300 A, N3301 A , N3 302A , N3303A, N3304A, N3305 A and N3306 A Pa r t N o . 596 4 - 8196 P r in t ed in Malaysia M i c r o f iche No. 5964 - 8197 October , 2001 ...

  • Agilent Technologies n3304a - page 2

    2 Warranty Information CERT IFICA T ION Agilent Te chnologies c ertifies that this produ ct met its published spe cificatio ns at time of shipment from the factory. Agile nt Technologie s fur ther certifie s that its calibration measurements are traceab le to the Unite d States N ational Ins titute of Standards and Technology , to the ext ent allow ...

  • Agilent Technologies n3304a - page 3

    3 Safety Summary The f ollowin g g eneral sa f et y p recautio ns must be obser ved durin g all p hases o f o p eration o f this instrumen t. Failure to com p l y with these p recautions or with s p eci f ic warnin g s elsew here in this manual violates sa f et y standar ds o f desi g n, manu f acture, a nd intended us e o f the instrument. A g ile ...

  • Agilent Technologies n3304a - page 4

    4 SAFETY SYMBOLS Dir ect cu rren t Alterna ting cu rrent Both dire ct and altern ating curr ent Three- phase alternat ing curren t Earth (g round) term inal Protectiv e earth (g round) term inal Frame or cha ssis term inal Terminal is at ear th potentia l. Used for m easurem ent and control ci rcuits de signed to be operated wi th one term inal at ...

  • Agilent Technologies n3304a - page 5

    5 Declaration Pa ge DECLARATION OF CONFORMITY Accordi ng to ISO/IEC Guide 22 and CEN/CENELEC EN 45014 Manuf actur er' s Na me Agilent T echnologie s, Inc. Manufactur er's Address 140 Green P ond Road Rock away , New J ersey 07866 U.S.A. declares th at the Produ cts Product Nam es a) dc Electron ic Load M ainframes b) dc E lectronic Load M ...

  • Agilent Technologies n3304a - page 6

    6 Acoustic Noise I nformation Herstellerbes cheinigung Diese Inform ation st eht im Z usammenhang mit den Anforde rungen der M aschinenl ä minform ationsvero rdnung vom 18 Januar 1991. * Schalldruck pegel Lp < 70 dB(A) * Am Arbeitsp latz * Norm aler Betr ieb * Nach EN 27779 (Typpr ü fung). Manufac turer's Decla ration This statem ent is p ...

  • Agilent Technologies n3304a - page 7

    7 Table of Contents Warranty Inform ation ........................................................................................................... ................................................ 2 Safety Summary ................................................................................................................. .................... ...

  • Agilent Technologies n3304a - page 8

    8 Cleaning ....................................................................................................................... ...................................................... 37 Installing the Modules ......................................................................................................... ................................ ...

  • Agilent Technologies n3304a - page 9

    9 PERFORMANCE TEST A ND C A LIBRATION PROCEDURES ............................................ 75 Introduction ................................................................................................................... ....................................................... 75 Equipment Required .............................................. ...

  • Agilent Technologies n3304a - page 10

    11 1 Quick Reference The Front Panel -At a Glance j 15-charac ter display shows channel, vo ltage and cur rent measurem ents. k Annunciato rs indicate operating modes and st atus conditions. l Syst e m keys: ♦ Return to L ocal m ode. ♦ Set the GPI B address. ♦ Set the RS- 232 interface. ♦ Display SCPI error codes. ♦ Save and re call ins t ...

  • Agilent Technologies n3304a - page 11

    1 - Quick Reference 12 The Rear Panel At a Glance Q Control conn ector R Input bind ing post S GPIB connecto r T RS-232 inter face connector 1 2 3 4 5 6 7 U Power co rd connector V Tri gger /D igi tal connector W Sense switch Instrument C onfig uration Use the front panel Address menu to ♦ Select GPI B or RS-232 inter face (s ee Chapter 5 in User ...

  • Agilent Technologies n3304a - page 12

    Quick Referen ce - 1 13 Front Panel Num ber Entr y Enter num bers from the f ront panel as follows: Use the Entry Scroll k eys to adjust the input setting in Meter mode. If CC is lit, the inpu t curren t changes. If CV is lit, the inp ut voltag e changes. If CR is lit, the input resis tance changes. NOTE The input m ust be on f or input v alues to ...

  • Agilent Technologies n3304a - page 13

    1 - Quick Reference 14 Fro nt Pane l A nnunc iator s φ φ φ φ 1 A list is initia ted or runnin g. Prot Indicates that a channel protection feature is activ e on any channel. Press the Prot Clear key to clear the protection condition. CV The selected input channel is in t he consta nt vo lta ge (CV) mod e. Cal Calibration mode is ON. Calib ration ...

  • Agilent Technologies n3304a - page 14

    Quick Referen ce - 1 15 Front Panel Men us - A t a Glance ADDRE SS 5 Sets the GPIB Address INTF GPIB Selects an interface (GPIB or RS232) BAUDR ATE 300 Selects baud rate (300, 600, 1200, 2400, 4800, 9600) * PARITY NO NE Selects message parity (NONE, EVEN, OD D, MARK, SPACE) * FLOW NONE Selects flow control ( XON-XOFF, RTS- CTS, DTR- DSR, NONE) * *R ...

  • Agilent Technologies n3304a - page 15

    1 - Quick Reference 16 Front Panel Menus - continued VOLT Sets the input voltage V:MOD E Sets the voltage mode (FIXED, LIST) V:RANG Sets the input voltage range V:SLEW Sets voltage s lew rate V:SLW: N Sets voltage slew rate for negative transitions V:SLW: P Sets voltage slew rate for positive transitions V:TLEV Sets the transient input vo ltage V:T ...

  • Agilent Technologies n3304a - page 16

    Quick Referen ce - 1 17 SCPI Programmi ng Comma nds - At a Glance NOTE Most [opti onal] comm ands have been om itted for clarity . Refer to th e Program ming Guide for a complete description o f all prog ramm ing comm ands. ABORt CALibrate :DATA <n> [,<n>] :IMON:LEVel <points> :IPRog:LEVel <points > :LEVel <points> :PA ...

  • Agilent Technologies n3304a - page 17

    1 - Quick Reference 18 SCPI Commands - continued [SOURce:]LIST (co ntinued) :VOLTage [:LEVel] <n> {,<n>} :POINts? :RANGe <n> {,<n>} :POINts? :SLEW [:BOTH] <n> {,<n>} :POINts? :NEGative <n> {,<n>} : POSitive <n> {,<n>} :TLEVel <n> {,<n>} :POINts? RESistance [:LEVel] <n> :T ...

  • Agilent Technologies n3304a - page 18

    19 2 General Information Document Orien tation This manual describes the operation o f the Agilent Model N3300A, N3301A, N3302A, N330 3A N3304A, N3305A and N3306A DC Electro nic Loads. Unl ess otherwise no ted, all un its will be re ferred to by the descrip tion "elect ronic load" t hroughou t this manual. The fol lowing docum ents and so ...

  • Agilent Technologies n3304a - page 19

    2 - Gen eral Inform ation 20 Safety Consideratio ns This ele ctronic load is a Safety Class 1 i nstrument, w hich m eans it has a p rotectiv e earth term inal. That term inal must be conne cted to earth g round throug h power source equipped with a g round recep tacle. Refer to the Safety Summ ary page at the beg inning of this guid e for g eneral ...

  • Agilent Technologies n3304a - page 20

    Genera l Infor mation - 2 21 The N3301A is a DC Elec tronic Lo ad Mainfram e that is fun ctionally identical to the N3300A, but is a half- rack width with only two slo ts for load m odules. The mainfram e can dis sipate up to 300 watts pe r slot, to a t otal of 600 watts for a fully lo aded main frame. The N3302A, N3303A N3304A, N3305A an d N3306A ...

  • Agilent Technologies n3304a - page 21

    2 - Gen eral Inform ation 22 Operating Mo des The three m odes of op eration a re: ♦ Constant cu rrent (CC). ♦ Constant vo ltage (CV). ♦ Constant resis tance (CR). When program med to a m ode, a module remains i n that mode un til the m ode is chang ed or until a f ault condition, su ch as an overpow er or over temperat ure, occurs. The curre ...

  • Agilent Technologies n3304a - page 22

    Genera l Infor mation - 2 23 Triggered Current Level A current level can b e preset ( stored in the elect ronic load ) allowing the inpu t to be updated w hen a trig ger is receiv ed instead o f imm ediately as desc ribed abov e. If the C C mode is the active m ode, the preset current l evel will b ecome the actual v alue and the inp ut will b e up ...

  • Agilent Technologies n3304a - page 23

    2 - Gen eral Inform ation 24 Figure 2-2. Constant Resistance Mode Immediate Resistance Level The resi stance lev el can be set at the f ront panel o r via the GPI B ( RES comm and). If the CR mode is a ctive, the new sett ing imm ediately changes the in put at a rate dete rmined by the voltag e or curren t slew s etting (see descrip tion below). I ...

  • Agilent Technologies n3304a - page 24

    Genera l Infor mation - 2 25 ( VOLT:RANG command). When y ou program a voltag e value, the e lectronic l oad automati cally sel ects the range th at correspo nds to the v alue that y ou program . If the v alue falls in a region where ranges ov erlap, th e electroni c load sele cts the Low r ange. If the pre sent input setting is outside the Low ran ...

  • Agilent Technologies n3304a - page 25

    2 - Gen eral Inform ation 26 Transient Operati on Transient op eration en ables the m odule to peri odically swit ch between two load level s, as might be required for testing powe r supplies. A pow er supply 's regulat ion and transien t charac teristics c an be evalua ted by monitori ng the supply 's output vo ltage under v arying combi ...

  • Agilent Technologies n3304a - page 26

    Genera l Infor mation - 2 27 List Operation List mode l ets you generat e complex sequences of input chang es with rapid, pr ecise tim ing, which m ay be synchroniz ed with in ternal or external sig nals. This i s useful when running tes t sequences w ith a m inimum amount of pr ogramm ing overhead. You can prog ram up to 50 setting s (or steps) in ...

  • Agilent Technologies n3304a - page 27

    2 - Gen eral Inform ation 28 If the ac l ine is se lected via the G PIB as the trigg er source, trigg ers will be gene rated once f or each cy cle of ac input power. An ac line frequen cy of 60 Hz produc es a trig ger period of 16.6 7 ms; 50 Hz lin e frequency produces a t rigger per iod of 20 ms. The rear- panel TRIGGER connecto r also prov ides a ...

  • Agilent Technologies n3304a - page 28

    Genera l Infor mation - 2 29 Therefore, bo th minim um transition time and s lew rate m ust be conside red when dete rmining the actual transiti on time. This is shown in Fig ure 2- 8, which shows the m inimum transition t ime for a giv en slew rate as a horizontal line, and a t about a 13.3 % or greater load change, the slew rate i ncreases f rom ...

  • Agilent Technologies n3304a - page 29

    2 - Gen eral Inform ation 30 Input C ontrol Short On/O ff A module can s imulate a short circu it at its input by turning the load on wi th full- scale current. The short c ircuit can be tog gled on/off at the front pane l using the SHORT comm and in the Fu nc m enu, or via the GPI B ( INPUT:SHO RT ON|OFF comm and). T he short on/o ff change uses t ...

  • Agilent Technologies n3304a - page 30

    Genera l Infor mation - 2 31 Caution To protec t the elec tronic load f rom possib le damag e, the input v oltage m ust not exce ed the maxim um input voltag e rating specified in the m odule-specific p ages suppli ed with each module. Nev er apply the ac line voltag e to a m odule's input conne ctors. Ove rvolta ge The overv oltage p rotectio ...

  • Agilent Technologies n3304a - page 31

    2 - Gen eral Inform ation 32 remain se t until th ey are rese t. If the OT condition still ex ists when th e reset is executed, the module' s input wil l remain of f. You must wa it until the m odule coo ls down before y ou can rese t the OT circu it. The fan(s) will continue to o perate to cool the uni t as quick ly as possible. Reverse Volta ...

  • Agilent Technologies n3304a - page 32

    Genera l Infor mation - 2 33 Saving and Recalling Se ttings The elec tronic load has inter nal regis ters in whi ch setting s (mode, cu rrent, vo ltage, resi stance, sl ew, transien t level, e tc.) for e ach module can b e saved. By saving setting s and re calling them later y ou can save programm ing tim e. The presen t setting s for all channels ...

  • Agilent Technologies n3304a - page 33

    2 - Gen eral Inform ation 34 20A Input (prog rammed v ia GPIB or front pan el) ± 1V (2 V peak- peak) 1 k Hz external prog ramm ing sign al The exter nal program m ing signal (+ 1 and - 1 volt) c orresponds to + 6 and - 6 amps at th e input (1 v olt exter nal programm ing input = 1 /10 full scal e). Therefo re, the inpu t varies ± 6 A at the 20A l ...

  • Agilent Technologies n3304a - page 34

    Genera l Infor mation - 2 35 As shipped from the fac tory, front pane l measur ements fo r input v oltage and cu rrent are calculated from a total of 1000 reading s taken at a 10 micro second sam pling rat e. There are n o trigg er controls for front p anel measurem ents. However, y ou can program both the s ampling rat e and the num ber of data po ...

  • Agilent Technologies n3304a - page 35

    37 3 Inst allation Inspection Damage When you rece ive y our electronic load, inspec t it for any obvious dam age that m ay have occurr ed during shipment. I f there is dam age, noti fy the ship ping carr ier and near est Agilen t Sales and Suppor t Office imm ediately. The list of Agil ent Sales an d Support O ffices is a t the back of this g uide ...

  • Agilent Technologies n3304a - page 36

    3 - Installation 38 Installing the Modules Procedure 1. With the m ainfram e off, disconne ct the power cord and rem ove the top cover by loosening the screws wit h a flat- bladed screwd river. 2. Rem ove any packing material f rom inside th e mainfram e. 3. Grasp the m odule using the quarter- turn locking fastener and the inpu t connectors. Th is ...

  • Agilent Technologies n3304a - page 37

    Installation - 3 39 6. Connect the ribbon cable to the adjacent connector pins in the GPIB board (or adjacent module). Make sure the connectors are properly seated. 7. If applicable, install each module in the slot next to the previous module in the same manner (step 3 through 6). 8. Replace the top cover after all modules are installed. 9. Reconne ...

  • Agilent Technologies n3304a - page 38

    3 - Installation 40 Figure 3-3A. N3300A Outline Diagram Figure 3-3B. N3301A Outline Diagram mm mm mm mm mm Figure 3-3C. N3300A Connector Diagram ...

  • Agilent Technologies n3304a - page 39

    Insta llation - 3 41 Bench Operat ion A fan cools the electron ic load by drawing air through th e top and s ides and exhaust ing it out the back. Minim um clearance s for bench op eration a re 1 inch (2 5 mm) along the sides. Do not block th e fan ex haust at the rea r of the unit . Rack Mounting The N3300A electr onic load ca n be mounted in a st ...

  • Agilent Technologies n3304a - page 40

    3 - Installation 42 Input C onnections Power Cord 1. Connect the powe r cord to th e IEC 320 connector on the rear of the unit. I f the wrong power co rd was shipped with y our unit, cont act your n earest Ag ilent Sales and Supp ort Office ( refer to the list at the back of this guide) to obta in the correc t cord. S ee Figure 3- 5 for the pa rt n ...

  • Agilent Technologies n3304a - page 41

    Insta llation - 3 43 Figure 3-6a. Manual Connector 1. Strip the ba ck wire insulatio n as ind icated Wire Size Strip back AWG 4 6 mm (0.65 in) AWG 6 or 8 13 mm (0.5 in) AWG 10 or sm aller 10 mm (0.4 in) 2. AWG 4 is the m aximum wire size. Strand ed copper wire s ize, AWG 6 or 8 is th e recomm ended wire. If you are con necting m ore than one w ire ...

  • Agilent Technologies n3304a - page 42

    3 - Installati on 44 spacer wires exiting at top wires exiting at bottom safety cover secured spacer insulated wire lug (AMP 52266-3) 4 AWG wire max. tighten cover screw insert tabs spacer (0380-4835) conical washer (3050-1924) breakaway tab cover (5040-1736) connector assembly with bolt (5040-1739) Figure 3-6b. 8mm Screw Ter minal Connectors 1. At ...

  • Agilent Technologies n3304a - page 43

    Insta llation - 3 45 Table 3-2. Stranded Copper Wire A mpere Capacity Wire Size A mpaci ty Notes: AWG Cross Section Area in m m 2 22 5.0 20 8.33 0.75 10 18 15.4 1 13.5 16 19.4 1.5 16 14 31.2 2.5 25 12 40 43 2 10 55 64 0 87 5 10 63 6 100 4 135 1. Ratings for AWG- sized wire s derived from MI L-W- 5088B. Ratings fo r metric- sized wires derived from ...

  • Agilent Technologies n3304a - page 44

    3 - Installation 46 Control Connector A 14-pin connec tor and a quick- disconnect m ating pl ug are prov ided on each m odule for conne cting rem ote sense leads, external V/I m onitors, an exte rnal program ming input, and externa l control l ines (see fig ure 3-7). The m ating plug is p ackaged in an envelope that is included with th e module. Co ...

  • Agilent Technologies n3304a - page 45

    Insta llation - 3 47 Sense Switch A local/rem ote sense switch is prov ided on each m odule. Unles s you are usin g remote sens ing, m ake sure that the sense sw itch is set to LCL (dep ressed). Rem ote sens ing is used i n certain app lications to achiev e greater accuracy (refer to Remote Sen se Connect ions for m ore inform ation). NOTE If the s ...

  • Agilent Technologies n3304a - page 46

    3 - Installation 48 Computer Co nnecti ons The elec tronic load can be cont rolled throug h a GPI B interface or through an RS- 232 interfa ce. GPIB Interface Each electro nic load ha s its own GPIB bus address, whic h can be set u sing the front panel A ddress ke y a s describ ed in Chapter 5. GPIB address d ata is st ored in a non- volatile m em ...

  • Agilent Technologies n3304a - page 47

    Insta llation - 3 49 Applicati on Connecti ons Local Sense Connec tions Figure 3- 10 illustra tes a typical setup with m odule num ber 1 connected f or constan t current o r constant resistanc e operation . Local s ensing is u sed in appl ications w here lead lengths a re relativ ely short, or w here lo ad regulat ion is not cr itical. The sense sw ...

  • Agilent Technologies n3304a - page 48

    3 - Installation 50 Figure 3-11. Remote Sensing Figure 3-12. Parallel Operation N3300A N3300A ...

  • Agilent Technologies n3304a - page 49

    Insta llation - 3 51 In Figure 3- 12, all lead connection s are term inated at the so urce. Each m odule is connec ted to the source using separate wi res. Using the source as the curren t distrib ution poin t allows la rger wires to b e used fo r each m odule connection an d also reduces the comm on impedance inh erent in d aisy- chained configur ...

  • Agilent Technologies n3304a - page 50

    53 4 T urn-On Checkout Introductio n Successfu l tests in t his chapter pr ovide a h igh degree o f confiden ce that the el ectronic load is ope rating prop erly. For verifi cation tests, see Appendix B. NOTE : This c hapter prov ides a p reliminary intro duction to the elect ronic load front pane l. See Chap ter 5 for more d etai l. Checkout Proce ...

  • Agilent Technologies n3304a - page 51

    4 - Turn-On Checkout 54 6. Depress th e Meter key followed by the scro ll key . 1 50 W The display shows the com puted input power for the selec ted channel. 7. Repeat steps 3 through 6 for any other m odules in the m ainfram e. 8. Turn off e lectronic lo ad, disconne ct power supply and continue wi th rear panel connections. NOTE : If the Err a nn ...

  • Agilent Technologies n3304a - page 52

    55 5 Front Panel Operation Introductio n Here is what y ou will find in this chapter: • A comp lete descrip tion of the front pane l controls • Front pane l program ming exam ples. NOTE : The elec tronic load must be s et in Local Mode to use the front p anel contro ls. Press the Local key on the front pane l to put the unit in Local Mode. Fron ...

  • Agilent Technologies n3304a - page 53

    5 - Front Panel Operation 56 j j j j Dis pl ay 15-character fluo rescent d isplay for showing m easurem ents and prog rammed v alues. k k k k Annunciators Annunciato rs light to indicate opera ting modes and status condit ions: φ 1 A lis t is in prog ress CV The electron ic load channel is in cons tant-v oltage mode. CC The electron ic load channe ...

  • Agilent Technologies n3304a - page 54

    Front Panel Operation - 5 57 Sy ste m K eys Refer to the exam ples later in this chapter for m ore details on the use of these key s. SYSTEM Local Recall Ident Address Error Save Figure 5-2. System Key s This is the blue, unlabe led key, which is also shown a s shift in th is guid e. Pressing thi s key accesses the alte rnate or sh ifted func tion ...

  • Agilent Technologies n3304a - page 55

    5 - Front Panel Operation 58 Function ke ys Refer to the exam ples later in this chapter for m ore details on the use of these key s. FUNCTION Meter Protect Sense Channel Channel Prot Clear Func Res Current Input on/off Voltage Tran Step Step List Trigger Control Trigger Figure 5-3. Function Keys Immediate Action Key s Imm ediate action key s imm e ...

  • Agilent Technologies n3304a - page 56

    Front Panel Operation - 5 59 Scrolling Ke ys Scrolling keys let y ou move throug h the comm ands in the pres ently selec ted functio n menu. Press ▼ to bring up the next comm and in the list. Press ▲ to go back to the previous command in th e list. Funct ion menus are c ircular; y ou can return to the start ing position by continuously pressing ...

  • Agilent Technologies n3304a - page 57

    5 - Front Panel Operation 60 Input Control Ke ys Input contro l key s control the input func tions o f the elec tronic lo ad. Press th is key to se lect anoth er chann el. Enter t he channel num ber using the Ent ry Keys. (This k ey performs the same func tion as ▼ Channel .) Press th is key to ac cess the cu rrent m enu. Displ ay Command Functio ...

  • Agilent Technologies n3304a - page 58

    Front Panel Operation - 5 61 Transient Control Ke ys Transien t control k eys contro l the tran sient func tions of t he electr onic load. Press th is key to ac cess the fu nction menu. Displ ay Command Function TRAN <v alue> Sets the curren t of input T:DCYC Sets the current m ode to FI X or LIST T:FREQ Sets the current s lew rate for bo th ...

  • Agilent Technologies n3304a - page 59

    5 - Front Panel Operation 62 E nt r y Ke ys Enter 789 4 5 6 1 2 3 0. Input Input E - Clear Entry Figure 5-4 Entry Keys These key s perform two fun ctions. I n Meter mode, these keys can be u sed to ad just the present input cu rrent, vo ltage, or re sistance - depending on whic h function is presently active (in dicated by the CC, CR, o r CV annunc ...

  • Agilent Technologies n3304a - page 60

    Front Panel Operation - 5 63 Examples of Fro nt Panel Programmi ng You will find thes e exam ples on the followi ng pages: 1. Using the front panel di splay. 2. Programm ing constant current, v oltage, and resistance m odes. 3. Programm ing transi ent operat ion. 4. Program ming lists. 5. Querying and Cle aring Output P rotection and E rrors 6. Mak ...

  • Agilent Technologies n3304a - page 61

    5 - Front Panel Operation 64 10. On t he Func tio n keyp ad, press Input On/Off to turn input on. Dis annunciator off 11. T o make minor cha nges t o an e xist ing va lue: O n the Funct io n keyp ad, pre ss Current . On the Entry keypad, press Q Q Q Q Input or R R R R Input to scrol l from 1.25 to 2.25. Then press Enter . CURR 2.25 Set the constan ...

  • Agilent Technologies n3304a - page 62

    Front Panel Operation - 5 65 3 - Programming Tra nsient Ope ration Transient op eration can be u sed in the CC, CR or C V mode. I t causes the se lected cha nnel to switch b etween two load l evels. Set transient operation for Continuous mode In the foll owing exam ple, assum e that the C C mode is a ctive, the slew rate is at the d efault se tting ...

  • Agilent Technologies n3304a - page 63

    5 - Front Panel Operation 66 Set transient operation for Pulse mode In this exam ple, assum e that th e CC mode is a ctive, the slew rate is at the factory de fault set ting (m aximum rate), and the applica ble trans ient opera tion param eters have be en set as fo llows: pulse m ode, m ain current lev el = 5 A, transien t current lev el = 10 A, pu ...

  • Agilent Technologies n3304a - page 64

    Front Panel Operation - 5 67 Figure 5-7. Toggled Transient Operation Action Display 1. On the Function keypad, press Current . On the Entry keypad, press 5 Enter . CURR 5 2. On the Function keypad, press Current . On the Function keypad, press • key until transient current is displayed. C:TLEV 3. On the Entry keypad press 10 Enter. C:TLEV 10 6. O ...

  • Agilent Technologies n3304a - page 65

    5 - Front Panel Operation 68 Trigger 0 1 2 3 4 5 List Count = 1 List Count = 2 Figure 5-8. List Sequence Action Display 4. Access the List menu again and press ‚ until you access the dwell time. This specifies the time for each current point, which is effectively its width. The first dwell point (0) appears in the display. On the Entry keypad, pr ...

  • Agilent Technologies n3304a - page 66

    Front Panel Operation - 5 69 5 - Querying and Clearing Output Protection and Errors When overvoltage, overcurrent, or overtemperature condition occurs, the Prot annunciator on the front panel will be on and the electronic load will disable its output. Error messages can occur at any time during the operation of the unit. When the Err annunciator on ...

  • Agilent Technologies n3304a - page 67

    5 - Front Panel Operation 70 Action Display 1. Displays the minimum current Displays the rms voltage Displays the input power Displays the maximum power Displays the minimum power Use and to scroll through the measurement selections <chan> <value> A MIN <chan> <value> A RMS <chan> <value> WATTS <chan> <v ...

  • Agilent Technologies n3304a - page 68

    71 A S pecifications Table A- 1 lists the specif ications for the diff erent load m odels. Sp ecificat ions indica te warr anted perf ormance in the 25 ° C ± 5 ° C reg ion of the ope rating tem perature r ange. Specif ications a pply to norm al and trans ient m odes unless othe rwise noted. Table A-1. Specific ations N3302A N3303A N3304A N3305A ...

  • Agilent Technologies n3304a - page 69

    A - Speci f i cations 72 Table A-1. Specific ations (continued) N3302A N3303A N3304A N3305A N3306A Const a nt Cu rre nt M ode 2 Low Range/Hi gh Range 3A / 30A 1A / 10A 6A / 60A 6A / 60A 12A / 12 0A Reg ulation 10mA 8mA 10m A 10mA 10mA Low Range Accuracy 0.1% + 5 mA 0 .1% + 4 mA 0.1 % + 7.5mA 0.1 % + 7.5mA 0 . 1% + 15mA High R ange A ccuracy 0.1% + ...

  • Agilent Technologies n3304a - page 70

    Specifications - A 73 Table A-2 lists the supplemental characteristics, which are not warranted but are descriptions of typical performance determined either by design or type testing. Table A-2. Supplemental Characteristics N3302A N3303A N3304A N3305A N3306A Programming Resolution Constant Current Mode 0.05mA/0.5mA 0.02mA/0.2mA 0.1 mA/1mA 0.1mA/1m ...

  • Agilent Technologies n3304a - page 71

    A - Specif ications 74 Table A-2. Supplemental Characteristics (continued) N3302A N3303A N3304A N3305A N3306A Rippl e a nd Noi se (20Hz- 10MHz) Current (rm s / pea k to pea k) 2mA / 20m A 1mA / 10mA 4mA / 40mA 4mA / 40m A 6mA / 60m A Voltage (rms) 5mV rms 12mV rms 6mV rms 10 mV rms 8 mV rms Temperature Coeffi cients Current Programming 120pp m/ ° ...

  • Agilent Technologies n3304a - page 72

    75 B Performance Test and Calibration Procedures Introduction This appendix contains test procedures for checking the operation and calibration of the Agilent N330xA Series Electronic Load Modules. The tests are performed using the front panel keypad of the N3300A or N3301A Mainframes. The required test equipment is listed in Table B-1 and sample p ...

  • Agilent Technologies n3304a - page 73

    B - Performance Test and Calibra tion 76 Performance Tests IMON Zero Verificati on This tes t verifies that I MON Zero is within c alibration. I MON zero m ust be in ca libration to p erform the tests in this sect ion. If the I MON value is not w ithin c alibration, g o to the ca libratio n section o f this appe ndix and calibrate IMON zero, I PROG ...

  • Agilent Technologies n3304a - page 74

    Performance Test and Calibration - B 77 6. Press [ CURR ] [ 1 ] ( except N3303A press [ CUR R ] [ 0.1 ] ). Press [ CURR ]. Scroll until displa y reads C:RANG, press [ 1 ] [ Enter ]. Press shift key, [ Sense ] scroll till display reads S:C: RNG press [ 1 ] [ Enter ]. 7. Checking low current range, low input current Wait 10 seconds then record the ac ...

  • Agilent Technologies n3304a - page 75

    B - Performance Test and Calibra tion 78 4. Turn on the power source. Set the power source voltage and current to the values listed i n the follow ing table. N3302A N3303A N3304A N3305A N 3306A Pow er Source Vol tage Sett ing 61V 246V 61V 152V 61V Pow er Source Current Setting 2A 0.6A 3A 2A 3A 5. Checki ng hi gh vo lta ge ra nge, h igh vo ltage poi ...

  • Agilent Technologies n3304a - page 76

    Performance Test and Calibration - B 79 CR Mode Test s These tes ts verify tha t the m odule operates i n CR mode and th e resistance program ming is with in specifica tion. The program m ed resistance v alues are ch ecked by recor ding the v oltage acr oss the cur rent m onitor resi stor and the inpu t voltage (v oltage at the m odules + and – s ...

  • Agilent Technologies n3304a - page 77

    B - Performance Test and Calibra tion 80 6. Set power source voltage and current values as listed in following table. N3302A N3303A N3304A N3305A N 3306A Pow er Source Volt age Setting 24V 96V 12V 30V 12V Pow er Source Current Setting 7A 3A 7A 15A 8A 7. Wait 15 seconds. C alculate and record resistan ce range 2 high resistance point Resistance Rang ...

  • Agilent Technologies n3304a - page 78

    Performance Test and Calibration - B 81 6. Set power source voltage and current values as listed in following table. N3302A N3303A N3304A N3305A N 3306A Pow er Source Volt age Setting 50V 96V 20V 50V 20V Pow er Source Current Setting 3.5A 1A 3A 3.5A 3.5A 7. Wait 3 seconds. C alculate and record resist ance range 4 high resistance point Transient Ge ...

  • Agilent Technologies n3304a - page 79

    B - Performance Test and Calibra tion 82 Pulse Width A ccuracy This test verifies that the transient generator pulse width accuracy is within specification. Note: Use the GPIB controller to gener ate a c ont inuo us pul se tr ain. 1. Connect Electronic Load, Power Source, Current Probe and Oscilloscop e as shown in figure B-5. 2. If using a con tro ...

  • Agilent Technologies n3304a - page 80

    Performance Test and Calibration - B 83 Agilent N3302 A Verification Te st Record Test Descriptio n Minimum Specification Results Maximum Specification Const ant Cur re nt Mod e T ests 30 Am pere Range Program ming and R eadback Low Current ( 1 A ) Front Panel Display High Cu rrent ( 30 A ) Front Panel Display 3 Am pere Range Programm ing and Readb ...

  • Agilent Technologies n3304a - page 81

    B - Performance Test and Calibra tion 84 Agilent N3303 A Verification Te st Record Test Descriptio n Minimum Specification Results Maximum Specification Const ant Cur re nt Mod e T ests 10 Am pere Range Program ming and R eadback Low Current ( 1 A ) Front Panel Display High Cu rrent ( 10 A ) Front Panel Display 1 Am pere Range Programm ing and Read ...

  • Agilent Technologies n3304a - page 82

    Performance Test and Calibration - B 85 Agilent N3304 A Verification Te st Record Test Descriptio n Minimum Specification Results Maximum Specification Const ant Cur re nt Mod e T ests 60 Am pere Range Program ming and R eadback Low Current ( 1 A ) Front Panel Display High Cu rrent ( 60 A ) Front Panel Display 6 Am pere Range Programm ing and Readb ...

  • Agilent Technologies n3304a - page 83

    B - Performance Test and Calibra tion 86 Agilent N3305 A Verification Te st Record Test Descriptio n Minimum Specification Results Maximum Specification Const ant Cur re nt Mod e T ests 60 Am pere Range Program ming and R eadback Low Current ( 1A ) Front Panel Display High Cu rrent ( 60 A ) Front Panel Display 6 Am pere Range Programm ing and Readb ...

  • Agilent Technologies n3304a - page 84

    Performance Test and Calibration - B 87 Agilent N3306 A Verification Te st Record Test Descriptio n Minimum Specification Results Maximum Specification Const ant Cur re nt Mod e T ests 120 Am pere Range Programm ing and Readback Low Current ( 1A ) Front Panel Display High Current ( 120 A ) Front Panel Display 12 Am pere Range Program ming and R ead ...

  • Agilent Technologies n3304a - page 85

    B - Performance Test and Calibra tion 88 N330xA Module (top view) Figure B-1. I MON ZERO CALIBRATION Agilent 3458 or 34401 DVM INPUT TERMINALS MUST BE OPEN + _ N330xA Module (rear view) Figure B-2. I MON / EXT PRG and CURRENT CALIBRATION Agilent 3458 or 34401 DVM A11 A9 Iprog Power Source + & DVM - A8 A7 Agilent 3458 or 34401 DVM If 3 DVM' ...

  • Agilent Technologies n3304a - page 86

    Performance Test and Calibration - B 89 + _ N330xA Module Figure B-3. VOLTAGE CALIBRATION Agilent 3458 or 34401 DVM + _ N330xA Module Figure B-4. RESISTANCE CALIBRATION Agilent 3458 or 34401 DVM +S -S Agilent 3458 or 34401 DVM SHUNT Power Source + _ Power Source + _ +S -S If 2 DVM's are not available - move DVM between +/- sense and shunt as r ...

  • Agilent Technologies n3304a - page 87

    B - Performance Test and Calibra tion 90 Calibration Parameters Calibrated The follow ing param eters m ay be calibr ated. • Exte rnal Curr ent M onitor ( Imon ) • External Cur rent Program ming ( I prog ) • Input Curren t • Input Vol tage • Input Resist ance You do not hav e to do a com plete calib ration each time. I f appropriate, you ...

  • Agilent Technologies n3304a - page 88

    Performance Test and Calibration - B 91 IMON, IPROG and CU RRENT Cali bration Prog ram 10 ! This program will calibrate Imon, Iprog and Current 20 ! for load modules N3302A, N3303A, N3304A, N3305A and N3306A. 30 ! 40 ! last update 9/6/00 50 ! 60 ! Edit the interface address on line 100 if different then 705 70 ! 80 ASSIGN @Ld TO 705 90 ! 100 OUTPUT ...

  • Agilent Technologies n3304a - page 89

    B - Performance Test and Calibra tion 92 540 INPUT "Enter value of high range current shunt in ohms",Rshunt 550 DISP "You have entered ";Rshunt;" ohms" 560 INPUT "If correct enter 'Y' or press CONT, if wrong enter 'N' or 'n'",Y$ 570 IF UPC$(Y$)="Y" OR Y$="" TH ...

  • Agilent Technologies n3304a - page 90

    Performance Test and Calibration - B 93 1110 ! 1120 OUTPUT @Ld;"CAL:IPR:LEV P4" 1130 ! 1140 PRINT TABXY(20,20),"Calibrating IMON & IPROG P4 - 30 SECOND WAIT" 1150 WAIT 30 1160 CLEAR SCREEN 1170 ! 1180 INPUT "Measure voltage across current shunt and enter in volts",Ip4 1190 ! 1200 INPUT "Measure Imon voltage an ...

  • Agilent Technologies n3304a - page 91

    B - Performance Test and Calibra tion 94 1690 CLEAR SCREEN 1700 ! 1710 OUTPUT @Ld;"INP:STAT ON" 1720 OUTPUT @Ld;"CAL:LEV P1" 1730 ! 1740 PRINT TABXY(10,10),"Calibrating low current range P1 - 30 SECOND WAIT" 1750 WAIT 30 1760 CLEAR SCREEN 1770 ! 1780 INPUT "Measure voltage across current shunt and enter in volts&q ...

  • Agilent Technologies n3304a - page 92

    Performance Test and Calibration - B 95 VOLTAGE Calibratio n Program 10 ! This program calibrates the voltage mode for load modules 20 ! N3302A, N3303A, N3304A, N3305A and N3306A. 30 ! 40 ! last update 9/6/00 50 ! 60 ! Edit the interface address on line 100 if different then 705 70 ! 80 ASSIGN @Ld TO 705 90 ! 100 OUTPUT @Ld;"*RST" 110 OUT ...

  • Agilent Technologies n3304a - page 93

    B - Performance Test and Calibra tion 96 540 ! 550 INPUT "Measure voltage at +/- sense terminals and enter value in volts",Vp1 560 ! 570 OUTPUT @Ld;"CAL:DATA";Vp1 580 ! 590 OUTPUT @Ld;"CAL:LEV P2" 600 WAIT 1 610 ! 620 INPUT "Measure voltage at +/- sense terminals and enter value in volts",Vp2 630 ! 640 OUTPUT ...

  • Agilent Technologies n3304a - page 94

    Performance Test and Calibration - B 97 RESISTANCE Calibration Progr am 10 ! This program calibrates the resistance mode 20 ! for load modules N3302A, N3303A, N3304A, N3305A and N3306A. 30 ! 40 ! last update 9/27/00 50 ! 60 ! The variables for the module to be calibrated must be inserted 70 ! in the program where a < variable > is encountered ...

  • Agilent Technologies n3304a - page 95

    B - Performance Test and Calibra tion 98 550 PRINT TABXY(10,12);"Set power source to voltage and current settings from Table B-2" 560 PRINT TABXY(10,13);"for resistance range 1 - Point P2" 570 DISP "Press Cont to continue resistance range 1 calibration" 580 PAUSE 590 OUTPUT @Ld;"CAL:LEV P2" 600 CLEAR SCREEN 6 ...

  • Agilent Technologies n3304a - page 96

    Performance Test and Calibration - B 99 1080 Rp2=Vt2/Ip2 1090 OUTPUT @Ld;"CAL:DATA";Rp2 1100 OUTPUT @Ld;"INP:STAT OFF" 1110 ! 1120 ! ************ CALIBRATING RANGE 3 ****************** 1130 ! 1140 CLEAR SCREEN 1150 INPUT "Enter value of current shunt for range 3 in OHMS",Rshunt3 1160 PRINT TABXY(10,10);"You have e ...

  • Agilent Technologies n3304a - page 97

    B - Performance Test and Calibra tion 100 1620 CLEAR SCREEN 1630 ! 1640 PRINT TABXY(10,12);"Set power source to voltage and current settings from" 1650 PRINT TABXY(10,13);"Table B-1 for resistance range 4 - Point P1" 1660 DISP "Press CONT when ready to calibrate resistance range 4" 1670 PAUSE 1680 CLEAR SCREEN 1690 PRI ...

  • Agilent Technologies n3304a - page 98

    101 Index -- -- -- -- -- , 69 0 0 ... 9 , 62 8 8mm screw te rminal conne ctor, 43 A acce ssor ies , 20 airflow , 4 1 annunciator s Addr , 56 Cal , 56 CC , 56 CR , 56 CV , 56 Dis , 56 Err , 56 Prot , 56 Rmt , 56 Shift , 56 SRQ , 56 Tran , 56 Unr , 56 B binding pos ts, 42 C cables , 20 calibrat ion equipment , 75 capabilities, 21 CC, 22 CC mode , 63 ...

  • Agilent Technologies n3304a - page 99

    Index 102 G GPIB , 70 address , 70 connect ions , 48 ground, ear th , 20 guide, user’ s , 19 H history , 6 I input current settin g , 63 resistan ce setting , 6 3 voltage setting , 63 input me asureme nts, 34 input on/ off , 30, 58 inspect ion , 37 install ing modules , 3 8 L List , 67 list mode , 27 location , 40 low v oltage operation , 51 LRV ...

  • Agilent Technologies n3304a - page 100

    Index 103 Address , 57 Error , 57 Interface , 57 Local , 57 RCL , 57 Save , 57 Shift , 57 T transien t, 26 continu ous, 26 pulse, 26 toggl ed, 26 transients continuo us mode , 65 pulse mode , 66 toggled mode , 6 6 trigger co nnector , 47 trigge r mode , 27 V verification equipment , 75 volt age rang e, 24 trigge red, 25 VXIplug&play , 19 W warr ...

  • Agilent Technologies n3304a - page 101

    104 A gilent Sales and Support Office For more in formatio n about Ag ilent Techno logies te st and m easurement produ cts, appli cations, s ervices, an d for a current s ales of fice list ing, v isit our web site: http://www.agilent.com/find/tmdir You can also contact on e of the fo llowing cent ers and ask for a test and measurem ent sales repres ...

  • Agilent Technologies n3304a - page 102

    Manual Updates The following updates have been made to this manual since its publication. 6/1/01 Table 2-1 has been updated with new option part numbers. Information about Option UJ1 has been added to chapters 2 and 3. Information about Low Voltage Operation has been has been added to the end of chapter 3. Appendix A has been rewritten to include m ...

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