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USER’S GUIDE A gilent Technologies Model N3280A Component Test DC Source 5 Agilent Part No. 5964-8248 Microf iche No. 5964-8249 June, 2001.
2 Warranty Information CER TIFICA T ION Agilent Technologies certifies that this product met its published specifications at time of shipment from the factory.
3 Safety Summary The f ollowin g g eneral sa f et y p recautions must be observed duri n g all p hases o f o p eration o f this instrumen t. F ailure to com p l y with these p recautions or with s p eci f ic warnin g s els ewhere in this manual violates sa f et y s tandards o f desi g n, manu f acture, and inte nded use o f the instrument.
4 SAFETY SYM BOLS Direct current Alternatin g current Both direct and alternating current Three-phase altern ating current Earth (grou nd) terminal Protective earth (ground) term inal Frame or ch assis termin al Terminal is at earth potential.
5 Declaration Page DECLA RA TI ON OF CONFORM ITY According to ISO /IEC Guide 22 and CEN/CENELEC EN 45014 Respons ible P arty Alternate Man ufacturing Site Manufacturer’s Name: Agilent T ec hnolo gies , Inc . Agilent T ec hnolo gies Manufacturer’s Address: Pow er Products PG U 140 Green Pon d Road Rockaw ay, N ew Jersey 07866 U.
6 A coustic Noise Information Herstellerbescheinigung Diese Inform ation steht im Z usamm enhang mit den Anforderung en der Maschinenl ä minform ationsverordnung vo m 18 Januar 1991. * Schalldruckpeg el Lp <70 dB(A) * Am Arbeitsplatz * Norm aler Betrieb * Nach EN 27779 (Typpr ü fung).
7 Table of Contents Warranty Inform ation 2 Safety Sum mary 3 Declaration Page 5 Acoustic Noise Information 6 Printing History 6 Table of Cont ents 7 GENERA L INFORMA TION 13 Document Orientation 13 S.
8 INTRODUCTION TO PROGRA MMING 31 External References 31 GPIB Referen ces 31 SCPI References 31 GPIB Capabilities of the DC Source 31 Introduc tion to SCPI 32 Conventions Used in T his Guide 32 Types .
9 Pre-trigger and Post-trigg er Data Acquisition 48 Program ming th e Status Registers 49 Operation Status Grou p 50 Questionable Statu s Group 51 Standard Even t Status Group 51 Status B yte Register.
10 STATus:OPERatio n:NTR STATus:OP ERation:PT R 70 STATus:P RESet 70 STATus:QUEStionable[:EVENt]? 7 0 STATus:QUEStionable:CONDition? 71 STATus:QUEStionable:ENABle 71 STATus:QUEStionable:NT R STAT us:Q.
11 Curre nt Pr ior ity, Co nstant Cur rent Sourc e Effe ct 93 Ripple and Noise Tests 94 Voltage Priority Ripple and Noise 94 Current Priority Ripple and Noise 95 Transient Response Test s 95 Voltage P.
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13 1 General Information Document Orientation This manual describes the operation of the Ag ilent Model N3280A Component Test DC Source. Unless otherwise noted, the unit will be referred to by the description "dc source" throughout this manual.
1 - General I nfor mation 14 Options and A ccessories Table 1- 1. Optio ns Option Description 100 87 − 106 Vac, 47 − 63 Hz 220 191 − 233 Vac, 47 − 63 Hz 230 207 − 253 Vac, 47 − 63 Hz 8ZL Add instrum ent feet - for bench mounting (p/n 5041-9167) AXS 1 Rack mount k it for two side-by- side N3280A units.
General Inf orm ation - 1 15 Output Characteristics Voltage Priority Operation Each Agilent N3280A output is a four- quadrant bipolar dc source that can be operated in either voltage or current priority m ode.
1 - General I nfor mation 16 If the output v oltage exceeds either the positive or neg ative overv oltage set point, the output will shut down and be disabled, automatically opening the output and sense relays. This leaves the output in a high- impedance state.
General Inf orm ation - 1 17 The heavy line illustrates the locus of possible operating points as a function of the output load, which may be purely resistive, or possibly include external voltage or current sources.
1 - General I nfor mation 18 measurem ent ranges to m ake fast measurem ents. The Hanning window can be used to reduce errors caused by other periodic noise sources, prov ided that the sample period is long enoug h to capture three or more noise w aveform cy cles.
19 2 Installation Inspection Damage When you receiv e your dc source, inspect it for any obvious dam age that m ay have occurred during shipment. I f there is damag e, notify the shipping carrier and the nearest Agilent Sales and Support Office imm ediately.
2 - Installat ion 20 Location Figure 2- 1 gives the dim ensions of your dc source. The dc source must be installed in a location that allows enough space at the sides and back of the unit for adequate air circulation (see Bench Operation). NOTE: This dc source generates m agnetic fields that may affect the operation of other instruments.
Install ation - 2 21 Pow er Connections Connect the Power Cord Connect the power cord to the IEC 320 connector on the rear of the unit. I f the wrong power cord was shipped with your unit, contact y our nearest Agilent Sales and Support Office to obtain the correct cord (refer to the list at the back of this g uide).
2 - Installat ion 22 Output Connections Turn the unit off bef ore connecting any w ires. Outputs 1 - 4 Disconnect the m ating plug from the unit by pulling it straight back .
Install ation - 2 23 + _ TWIST LEADS KEEP RESISTNCE AND INDUCTANCE LOW. USE TWISTED PAIR OR SANDWICHED PCB TRACKS. TWIST PAIR FIXTURE CONNECTIONS LOAD ADDITION OF LOW-LEAKAGE RC NETWORK MAY IMPROVE TRANSIENT RESPONSE IN VOLTAGE PRIORITY MODE. OUTPUT 1 MATING PLUG SHOWN Hsen Hi Lo Lsen INSERT WIRES TIGHTEN SCREWS LOCKING SCREW Figure 2-4.
2 - Installat ion 24 NOTE: Any v oltage drop in the load leads must be subtracted from the full-scale v oltage available at the output term inals. Coaxial Guard Connections An active g uard connection is available at the output connector.
Install ation - 2 25 Maintaining Stability In v oltage priority m ode, the constant voltage loop has the following three compensation bandwidths: ♦ 30 kHz , 20 kHz; and 10 kHz In current lim it oper.
2 - Installat ion 26 GPIB A ddress Each dc source has its own GPIB bus address, which can be set using the rear panel A ddress switch. The dc source is shipped with its GPIB address set to 5. Refer to the following table for additional address switch positions.
27 3 Turn-On Checkout Front Panel Description 1 2 3 N3280A 10V, 0.5A Component Test DC Source Figure 3-1. Front P anel, Overall View Q Q Q Q Line Switch AC mains power switch. R R R R Unit Indicators Unit indicators light to indicate the following operating conditions: Power The dc source is turned on.
3 – Turn-O n Checkout 28 Checkout Procedure Successful tests in this chapter provide a hig h degree of confidence that your unit is operating properly . Complete perform ance tests are given in Appendix B. NOTE: To perform the check out procedure, you will need a computer w ith a GPIB interface.
Turn-O n Checkout - 3 29 In Case of Trouble Dc source failure may occur during power-on selftest or during operation. Either the Error or the Prot indicator on the front panel may be lit to indicate that a failure has occurred. If this occurs, turn the power off and then back on to see if the error persists.
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31 4 Introduction to Programming External References GPIB References The most im portant GPIB docum ents are your controller program ming m anuals - BASI C, GPIB Comm and Library for MS DOS, etc. Refer to these for all non- SCPI comm ands (for example: Local Lockout).
4 - Intr oduction to Prog ramming 32 Introduction to SCPI SCPI (Standard Comm ands for Program mable I nstruments) is a program ming lang uage for controlling instrument functions over the GPIB. SCPI is layered on top of t he hardware-portion of I EEE 488.
Introduct ion to Progr amming - 4 33 Multiple Commands in a M essage Multiple SCPI comm ands can be combined and sent as a single m essage with one m essage terminator. There are two important considerations when sending several comm ands within a single messag e: ♦ Use a semicolon to separate com mands within a m essage.
4 - Intr oduction to Prog ramming 34 Ty pes of SCPI Messages There are two types of SCPI messages, prog ram and response. ♦ A program message consists of one or more properly formatted SCPI com mands sent from the controller to the dc source. The messag e, which may be sent at any time, requests the dc source to perform som e action.
Introduct ion to Progr amming - 4 35 Headers Headers, also referred to as key words, are instructions recognized by the dc source. Headers may be either in the long form or the short form. I n the long form, the header is com pletely spelled out, such as VOLTAGE, STATUS, and DELAY.
4 - Intr oduction to Prog ramming 36 Suffixes and Multipliers Class Suffix Unit Unit with Multiplier Curren t A ampere MA (m illiampere) Am plitude V vo lt MV (millivolt) Tim e S second MS (m illiseco.
Introduct ion to Progr amming - 4 37 *OPC This sets the OPC status bit when all pending operations have com pleted. Since your program can read this status bit on an interrupt basis, *OPC allows subsequent comm ands to be executed. NOTE: The trigger subsy stem m ust be in the Idle state for the status OPC bit to be true.
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39 5 Programming the DC Source Introduction This chapter contains examples on how to prog ram your dc source. Sim ple examples show you how to program : K output voltag e and current functions K inter.
5 - Prog ramming the DC Source 40 Overv oltage Protection The dc source will turn off its output and open the output relays if the output v oltage exceeds +11.5V ( ± 0.3V) or − 11.5V ( ± 0.3V) when measured at the output term inals. Overvoltag e protection is only available when operating in voltage priority mode.
Progr amming the DC Source - 5 41 Oscillation Protection Oscillation protection is a built in function that shuts down the output in about 10 m illiseconds if a persistent and severe oscillation condition is detected.
5 - Prog ramming the DC Source 42 Setting the Voltage and Current Trigger Leve ls You can program a trigger lev el (or alternate value) that the output voltag e, output current, or output current limit function w ill go to when a trigg er is received.
Progr amming the DC Source - 5 43 Generating Output Triggers After you hav e specified the appropriate trigger source, you can g enerate triggers as follows: GPIB Triggers Send one of the following co.
5 - Prog ramming the DC Source 44 Power Line Cycles After a power-on or *RST, the dc source autom atically mak es measurements based on a 0.00912 power line cycles (for 60 Hz line). T his results in a default measurem ent sample of 5 points separated by 30.
Progr amming the DC Source - 5 45 Current Ranges The dc source has three current measurem ent ranges. The comm and that controls the ranges is: SENS:CURR:RANG <value>, (@< channel list >) Enter the value of the current that y ou expect to measure.
5 - Prog ramming the DC Source 46 Measurement Trigger M odel Figure 5- 3 is a model of the m easurement trigg er system. The rectang ular boxes represent states. The arrows show the transitions between states. These are labeled with the input or event that causes the transition to occur.
Progr amming the DC Source - 5 47 To select GPIB bus trig gers, use: TRIG:ACQ:SOUR BUS To select external trigge rs use: TRIG:ACQ:SOUR EXT Selecting the Sensing Function Each output channel has its own measurem ent buffer.
5 - Prog ramming the DC Source 48 When the acquisition finishes, any of the FETCh queries can be used to return the results. Once the measurem ent trigger is initiated, if a F ETCh query is sent befor.
Progr amming the DC Source - 5 49 Programming the Status Registers Status register program ming lets you determine the operating condition of the dc source at any time. For example, y ou may prog ram the dc source to generate an interrupt (SR Q) when an event such as a current limit occurs.
5 - Prog ramming the DC Source 50 Table 5-1. Bit Configurations of Status Regis ters Bit Sign al Mean in g 0 1 2 3 4 5 6 CV CL+ CL- CC VL+ VL- OFF Operation Statu s Group The selected output is in con.
Progr amming the DC Source - 5 51 Questionable Status Group The Questionable Status registers record signals that indicate abnorm al operation. As shown below, the group consists of the sam e register types as the Status Operation group.
5 - Prog ramming the DC Source 52 Determining the Cause of a Service Interrupt You can determine the reason for an SRQ by the following actions: Step 1 Determ ine which summ ary bits are active.
53 6 Language Dictionary Introduction This section gives the syntax and parameters for all the IEEE 488.2 SCPI comm ands and the Common comm ands used by the dc source.
6 – Language Dict ionary 54 SCPI Programming Commands - A t a Glance Table 6-1. Subsy stem Commands Sy ntax ABORt Resets the trigger sy stem to the Idle state CALibrate :CURRent [:LEVEL ] (@channel).
Language Dict ionary - 6 55 Table 6-1. Subsy stem Commands Sy ntax (continued) [SOURce:] CURRent [:LEVel] [:IMM ediat e][:AM PLitude] <n >, (@list) Sets the output cu rrent (in current priority .
6 – Language Dict ionary 56 Table 6-2. Common Commands Sy ntax *CLS Cl ear status *ESE <n> Standard even t status enable *ESE ? Return standard ev ent status en able *ESR? R eturn event s tatu.
Language Dict ionary - 6 57 Calibration Commands Calibration comm ands let you enable and disable the calibration m ode, change the calibration password, calibrate current and voltag e programm ing, and store new calibration constants in nonvolatile m emory .
6 – Language Dict ionary 58 CA Librate:DATA This comm and enters a calibration value that you obtain by reading an external meter. You m ust first select a calibration level (with C ALibrate:LEVel) for the value being entered.
Language Dict ionary - 6 59 CA Librate:SAVE This comm and saves any new calibration constants after a calibration procedure has been com pleted in nonvolatile m emory. I f CALibrate:STATe OFF is program med without a CA Librate:SAVE, the previous calibration constants are restored.
6 – Language Dict ionary 60 Measurement Commands Measurement com mands consist of fetch, m easure, and sense comm ands. Measure commands measure the output v oltage or current.
Language Dict ionary - 6 61 MEASure:A RRay :CURRent? MEASure:A RRay :VOLTage? These queries initiate and trigg er a measurement and return an array containing either the digitiz ed output current in amperes or output v oltage in volts.
6 – Language Dict ionary 62 SENSe:FUNCtion This comm and configures the sensing function for trig gered measurem ents. The dc source has two measurem ent sensors as described below.
Language Dict ionary - 6 63 SENSe:SWEep:POINts This comm and defines the number of points in a m easurement. Command Syntax SENSe:SWEep:POINts <NRf+> Parameters 1 through 4096 *RST Value 5 Examp.
6 – Language Dict ionary 64 Output Commands Output comm ands consist of output and source comm ands. Output comma nds enable the output and oscillation functions. Source commands program the actual output voltage and current setting s. OUTPut This comm and enables or disables the dc source output.
Language Dict ionary - 6 65 [SOURce:]CURRent[: IMMediate] [SOURce:]CURRent: TRIGgered These comm ands set the imm ediate and the pending triggered current lev el of the dc source. They only apply in current priority mode. The imm ediate level is the output current setting .
6 – Language Dict ionary 66 [SOURce:]CURRent:M ODE [SOURce:]CURRent:LIM it:M ODE These comm ands determine what happens to the output current and current lim it during a trigg ered event. FIXe d The output current and output current limit is unaffected when a trigg er occurs.
Language Dict ionary - 6 67 [SOURce:]FUNCtion:M ODE This comand config ures the output operating mode. Note that if the output is on, chang ing the output mode w ill cause the output to cycle OFF, then ON .
6 – Language Dict ionary 68 [SOURce:]VOLTage: MODE This comm and determines what happens to the output voltag e during a trigg ered event. FIXe d T he output voltag e is unaffected when a trigger occurs. STEP The output voltage is prog ramm ed to the value set by VOLT:TRIG when a trig ger occurs.
Language Dict ionary - 6 69 Status Commands Status comm ands program the dc source status registers. The dc source has three groups of status registers; Operation, Questionable, and Standard Event. The Standard Ev ent group is program med with Comm on comm ands as described later in this section.
6 – Language Dict ionary 70 STA Tus:OPERation: NTR STA Tus:OPERation: PTR These comm ands set or read the value of the Operation N T R (Neg ative-Transition) and P T R (Positive- Transition) registers.
Language Dict ionary - 6 71 STA Tus:QUEStionable: CONDition? This query returns the value of the Questionable Condition reg ister. That is a read-only reg ister, which holds the real-tim e (unlatched) questionable status of the dc source.
6 – Language Dict ionary 72 Sy stem Commands System comm ands control system functions that are not directly related to output control or measurem ent functions. SYSTem:ERRor? This query returns the next error num ber followed by its corresponding error m essage string from the remote prog ramm ing error queue.
Language Dict ionary - 6 73 Trigger Commands Trigg er comm ands consist of trigger and initiate com mands. Initiate commands initialize the trig ger sy stem. Trigger commands control the remote trig gering of the dc source. They are used to generate output and measurem ent trigg ers.
6 – Language Dict ionary 74 TRIGger:ACQuire:SOURce This comm and selects the trigger source for the m easurement trig ger system . EXT External trigg er input signal BUS GPI B device, *TRG, or <G.
Language Dict ionary - 6 75 Common Commands *CLS This comm and causes the following actions (see chapter 5 for the descriptions of all registers): K Clears the Standard Event Status, Op eration Status.
6 – Language Dict ionary 76 *IDN? This query requests the dc source to identify itself. I t returns a string com posed of four fields separated by com mas.
Language Dict ionary - 6 77 *RST This comm and resets the dc source to a factory-defined state as defined in the following table. *RST also forces an ABOR t command. Table 6- 7. *RST Set tings CAL:STAT OFF [ SOUR:]CURR:LI M 1E − 3 OUTP OFF [ SOUR:]CURR:LIM:TRIG 1E − 3 OUTP:OS CP ON [SOUR :]CURR :LIM:BWID 30000 SENS:CURR:RANG .
6 – Language Dict ionary 78 Table 6-8. Bit Configuration of Status By te Register Bit Position 7 6 5 4 3 2 1 0 Bit Name OPER MSS (RQS) ESB MAV QUES WT G 0 0 Bit Value 128 64 32 16 8 4 2 1 OPER = Ope.
79 A Specifications Introduction Table A-1 lists the specifications of the dc source. Unless otherwise noted, specifications are warranted at 25 ° C ± 5 ° C after a 30-m inute warm- up period. Sense terminals must be connected to their respectiv e output terminals.
A - Specif ications 80 Table A-2 lists the supplem ental characteristics, which are not warranted but are descriptions of typical performance determ ined either by design or type testing.
Specificat ions - A 81 Table A -2 Supplemental Characteristi cs (continued) Param eter Voltage Priority Current Priority Progra mm ing Output Fall Time Voltage 11 (90% to 10% @10kHz ): +Curr Lim 12 (9.
A - Specif ications 82 8 4 2 1 0.5 0.25 0.125 90 45 0 -45 -90 o o o o o 1k 10k 100k 1M FREQUENCY (Hz) VOLTAGE PRIORITY (bandwidth = 30kHz) OUTPUT IMPEDANCE ( ohms ) Phase M a g n i t u d e 128 64 32 1.
83 B Performance Tests an d Calibration Introduction This appendix contains test procedures to verify that the dc source is operating normally and is within published specifications. There are three types of tests as follows: Built- in Self Tests These tests run autom atically when the dc source is turned on.
B - Perf ormance and Calibr ation Procedures 84 Table B-1. Equipment Requir ed (continued) Oscilloscope Sensitivity : 1 mV/div. Bandwidth Lim it: 20 to 30 MHz Probe: 1:1 with RF tip Agilent I nfinium or equivalent RMS voltm eter True RMS Bandwidth: 20 Mhz m in.
Perf ormance and Calibrat ion Procedures 85 Electronic Load Many of the test procedures require the use of a v ariable load capable of dissipating the required power.
B - Perf ormance and Calibr ation Procedures 86 Voltage Priority Tests Voltage Programming and Readback A ccuracy These tests verify that the v oltage program ming and GPI B readback functions are within specifications. Action Program Comm ands 1. Reset the dc sou rce and connect a DVM as show n in Fig ure B-1a.
Perf ormance and Calibrat ion Procedures 87 5. Set the amm eter to the 1A rang e, and record the output current reading on th e ammeter. The am meter reading should be within the limits specif ied in the test record card under Voltage Priority Program ming A ccuracy + 0.
B - Perf ormance and Calibr ation Procedures 88 7. Turn on t he output an d program th e 15mA cu rrent readback rang e. Measure the ou tput current. “OUTP ON,(@1)” “SENS:CURR:RANG 0.015,(@1)” “MEAS:CURR? (@1)” 8. Set the amm eter to the 10mA range, and record the output cu rrent reading on the amm eter.
Perf ormance and Calibrat ion Procedures 89 Load Effect Tests The following tests verify the dc regulation of the output voltag e and current. To insure that the values read are truly dc and not affected by output ripple, several dc measurem ents should be made and the averag e of these readings calculated.
B - Perf ormance and Calibr ation Procedures 90 Voltage Priority , +Current Limit Load Effect This test measures the chang e in output current resulting from a chang e in output voltage from about zero volts to about 10 v olts. Action Program Comm ands 1.
Perf ormance and Calibrat ion Procedures 91 Current Priority Constant Current Test This test measures the chang e in output current resulting from a chang e in output voltage from about zero volts to the m aximum output voltage. NOTE: The voltag e limits in Current Priority Mode are not programm able.
B - Perf ormance and Calibr ation Procedures 92 4. Read back th e N3280A statu s to be sure that i t's in th e CV mode. This query sh ould return a Bit value of “ 1 ” for CV mode. If it is not in C V mode, adjust the load or the output voltage sligh tly until the u nit goes into CV m o de.
Perf ormance and Calibrat ion Procedures 93 3. Read back th e N3280A statu s to be sure that i t’s in the – CL mode. This query sh ould return a Bit value of “ 4 ” for – CL mode. “STAT:OPER:COND? (@1)” 4. Adjust the transform er to the lowest rated line voltage (e.
B - Perf ormance and Calibr ation Procedures 94 Ripple and Noise Tests Voltage Priority Ripple and Noise Periodic and random dev iations (PARD) in the output (ripple and noise) combine to produce a residual ac voltag e superimposed on the dc output voltag e.
Perf ormance and Calibrat ion Procedures 95 Current Priority Ripple and Noise Periodic and random dev iations (PARD) in the output combine to produce a residual ac current, as well as an ac voltag e superimposed on the dc output. PARD is specified as the rms output current in a frequency rang e specified in Appendix A.
B - Perf ormance and Calibr ation Procedures 96 Figure B-2. Transient Waveform Volt age Priority Current Priority Transient Recovery Time This test measures the tim e for the output current to recover to within the specified v alue following a ± 1V change in the output voltag e.
Perf ormance and Calibrat ion Procedures 97 Figure B-3. Transient Waveform Current Priori ty Performance Test Equipment Form Test Facility: _________________________ Report Nu mber ___________________.
B - Perf ormance and Calibr ation Procedures 98 Performance Test Record Form Model Agilen t N3280A - Output 1 Report No ______________ Date __________________ Test Description Minimum Specification Re.
Perf ormance and Calibrat ion Procedures 99 Performing the Calibration Procedure You can only calibrate the dc source by using SCPI com mands within your controller prog ramm ing statements. The SCPI calibration comm ands are explained in chapter 8. Calibration error messag es that can occur during GPI B calibration are shown in table B-3.
B - Perf ormance and Calibr ation Procedures 100 Negative Current Limit Calibration Action Program Comm ands 1. Jum p er the High sense terminal to th e High output term inal. Jumper th e Low sens e terminal to the L ow output term inal. Connect th e current inpu t of the 3458A m ultimeter directly to output 1.
Perf ormance and Calibrat ion Procedures 101 15mA Range Current Measurement Calibration Action Program Comm ands 1. Jum p er the High sense terminal to th e High output term inal. Jumper th e Low sens e terminal to the L ow output term inal. Connect th e current input of the 3458A m ultimeter directly to outpu t 1.
B - Perf ormance and Calibr ation Procedures 102 Changing the Calibration Password The factory default password is 0. You can change the password when the dc source is in calibration mode (w hich requires you to enter the existing password). Proceed as follows: Action Program Comm ands 1.
103 C Error Messages Error Number List This appendix gives the error num bers and descriptions that are returned by the dc source. Errors are indicated in two ways: ♦ The Error or Prot indicators are lit on the front panel. ♦ Error numbers and m essages are read back with the SYSTem :ERRor? query.
C – Error M essages 104 Table C- 1. Error Numbers (co ntinued –131 Inval id suff ix [unrecog nized units , or units n ot appropriate] –138 Suf fix not allowed –141 Inv alid character data [bad.
Error M essages - C 105 Table C- 1. Error Numbers (co ntinued Selftest Errors 0 through 9 9 (sets Standa rd Event Sta tus Register bit # 3) 0 No error 1 Output 1 non-volatile RAM C AL section checksu .
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107 D Line Voltage Selection To change the line v oltage selection: 1. Rem ove the line cord. 2. Check if the line v oltage displayed in the window m ust be changed. 3. Open the door using a sm all flat-bladed screwdriver. 4. Rotate the cylinder so that the correct line v oltage appears in the location under the window.
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109 E Earlier Version Output Connectors This appendix documents the earlier v ersion output connectors used on Agilent N3280A units. Earlier style Agilent N3280A units used a different sty le output connector with ten (10) pins instead of the six used on the present connector.
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111 Index —A— AARD , 3 6 ABOR T, 7 3 accessories, 1 4 addres s switch, 21 airflow, 20 averaging measurements, 43 AWG rat in gs , 2 3 —C— cables, 1 4 calibration, 99 equipm ent, 83 error messag.
Index 112 IEEE Std for standa rd codes, 31 IEEE Std for standard digital interface, 31 interface, 25 references, 31 trigger , 43, 47 GPIB c onnector, 21 ground, ea rth, 3 guard c onnections, 24 guide,.
Index 113 equipm ent, 83 setup, 85 perf ormance test form , 97 post-event trig gering, 48 powe r cord, 19, 21 power lin e cycles, 44 power-on initia lization, 39 pre-event triggerin g, 48 print date, .
Index 114 —V— volt age, 39 protection, 40 voltage priority, 15 voltag e program ming, 86 —W— waiting for meas urement results, 48 warranty , 2 wir e current ratings, 23.
A gilent Sales and Support Office For more inform ation about Agilent Technologies test and m easurement products, applications, services, and for a cur rent sale s office listi ng, visit our web site : http:/ /www.agilent.com/find/ tmdir You can also contact one of the following centers and ask for a test and measurement sales representative.
Manual Updates The following updates have been m ade to this manual since its publication. 6/1/01 Chapter 2 has been updated with information about the new output connector.
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