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Calibration

138

Series N6700 User’s Guide

Low Range Current Programming Calibration

This only applies to Agilent Models N6761A and N6762A.

Step 7.

Connect a precision shunt resistor to an output channel. Connect the

DVM to measure the voltage across the shunt. The shunt resistor
should be able to measure at least 120% of the rated output current of
this current range.

Step 8.

Select the low-current programming range. The following example

selects the 0.1 amp low-current programming range of channel 1. The
value to program a range must be the maximum current of the range.

Front Panel:

SCPI Command:

Select

System\Cal\Sequences\Iprog

Then select the Low range.

CAL:CURR 0.1

, (@1)

Step 9.

Select the first current calibration point.

Front Panel:

SCPI Command:

Select Next. The information field
should indicate: Enter P1 data

CAL:LEV P1
*OPC?

Step 10.

Wait 3 minutes for the output current to stabilize. Then calculate the

shunt current (I=V/R) and enter the data.

Front Panel:

SCPI Command:

Select the Measured Data field. Enter
the data from the external DVM.
Press Select when done.

CAL:DATA <data>

Step 11.

Select the second current calibration point.

Front Panel:

SCPI Command:

Select Next. The information field
should indicate: Enter P2 data

CAL:LEV P2
*OPC?

Step 12.

Wait 15 seconds for the output current to stabilize. Then calculate

the shunt current (I=V/R) and enter the data.

Front Panel:

SCPI Command:

Select the Measured Data field. Enter
the data from the external DVM.
Press Select when done.
Press Next to finish calibration.

CAL:DATA <data>

Содержание Series N6700

Страница 1: ...A A A A Agilent Technologies Modular Power System Series N6700 User s Guide...

Страница 2: ...eriod Agilent Technologies will at its option either repair or replace products that prove to be defective Agilent Technologies does not warrant that the operation for the software firmware or hardwar...

Страница 3: ...ified service trained personnel who are aware of the hazards involved should remove instrument covers Always disconnect the power cable and any external circuits before removing the instrument cover D...

Страница 4: ...ramming concepts Language Dictionary Chapter 6 describes all of the SCPI programming commands Programming Examples Chapter 7 provides Visual Basic example programs that illustrate some common applicat...

Страница 5: ...22 Parallel Connections23 Series Connections 24 3 Getting Started 27 Turning the Unit On 28 Selecting an Output Channel 28 Entering an Output Voltage Setting 28 Entering a Current Limit Setting 29 Ena...

Страница 6: ...xample104 A Specifications 107 Performance Specifications 108 Supplemental Characteristics 110 Auto Ranging Characteristic 116 Outline Diagram 116 B Verification and Calibration 117 Verification 118 C...

Страница 7: ...lar Power System MPS This chapter does not describe every operating feature in detail It is simply a quick reference guide to quickly become familiar with the essential operating features of the power...

Страница 8: ...m resources such as fixture controls The output and system features are described in the following sections Not all output features are available on every power module The Model Differences section de...

Страница 9: ...Web server lets you control the instrument directly from an internet browser on your computer Real time status information The front panel indicates the status of each output It also indicates when a...

Страница 10: ...ween meter mode and the command menus Exit a menu and return to meter mode Select an output channel to display Numeric entry keys Enter values Increment or decrement values The Rear Panel At a Glance...

Страница 11: ...he error queue Navigation Keys Sel The arrow keys let you move around in the command menus The Select key lets you make a selection in the command menus It also lets you enter edit mode for numeric pa...

Страница 12: ......

Страница 13: ...nd line cord connections This chapter discusses how to connect your load to the output terminals It discusses what you need to know about wire sizes and how to compensate for voltage drops in the load...

Страница 14: ...ignal lines to the digital port 1253 5830 Sense Jumpers 2 jumpers per module to connect the sense to the output terminals 8120 8821 Filler Module Only provided if there are less than four modules inst...

Страница 15: ...rnings for specific procedures are located at appropriate places throughout this Guide Environment WARNING Do not operate the instrument in the presence of flammable gasses or fumes The environmental...

Страница 16: ...a for the front ears and four M3 x 6mm screws b for the rear brackets Step 3 Install the two rear rack ears to the back of the instrument rack as shown in the figure Use the four plain 10 32 screws t...

Страница 17: ...ore cleaning Use a dry cloth or one slightly dampened with water to clean the external case parts Do not attempt to clean internally Connecting the Line Cord WARNING FIRE HAZARD Use only the power cor...

Страница 18: ...re not recommended Each connector has four openings for attaching wires see figure below Load connections are made at the and terminals Sense connections are made on the s and s terminals Securely fas...

Страница 19: ...0 10 5 2 6 1 5 15 0 13 3 0 0137 14 6 7 2 3 6 2 5 23 5 20 8 0 0082 12 2 6 Notes 1 Capacity for AWG wires derived from MIL W 5088B Max ambient temp 55 C Max wire temp 105 C 2 Capacity for metric wires a...

Страница 20: ...tion terminals or if one load is more sensitive than the others directly at the critical load Positive and Negative Voltages Either positive or negative voltages can be obtained from the output by gro...

Страница 21: ...for CV operation with load impedances that vary or have significant lead resistance It has no effect during CC operation Because sensing is independent of other power system functions remote sensing c...

Страница 22: ...feedback path Connect them in such a way so that they do not inadvertently become open circuited The power system includes protection resistors that reduce the effect of open sense leads during remote...

Страница 23: ...hown in the figure in the right Setting the Outputs Program both outputs to the desired output voltage Then program the current limit point of each output The current limit point of the paralleled out...

Страница 24: ...ections WARNING SHOCK HAZARD Floating voltages must not exceed 240 VDC No output terminal may be more than 240 VDC from chassis ground CAUTION Connect in series only outputs that have equivalent curre...

Страница 25: ...ries can be obtained from the specifications for single outputs Most specifications are expressed as a constant or a percentage or ppm plus a constant For series operation the percentage portion remai...

Страница 26: ......

Страница 27: ...ses turning the unit on using the front panel controls and navigating the front panel command menu A map of the front panel command structure is also included This chapter also contains information on...

Страница 28: ...ering an Output Voltage Setting Method 1 Use the Navigation and Arrow Keys Navigation Keys Sel Use the left and right navigation keys to navigate to the setting that you wish to change In the display...

Страница 29: ...enter a value Current Use the Current key to select the current entry field In the display below channel 1 s voltage setting is selected Enter the desired setting using the numeric keypad Then press E...

Страница 30: ...ltage reaches the programmed over voltage limit Menu Press the Menu key to access the front panel command menu The first line identifies the output channel that is being controlled followed by the men...

Страница 31: ...present output voltage the over voltage protection circuit will trip and turn the output channel off The status indicator will show OV Exiting the Command Menu There are two ways to exit the command m...

Страница 32: ...list parameters TrigSource Specify the trigger source bus tran 1 4 pin 1 3 Control Initiate Trigger or Abort output triggers Protect OVP Configures over voltage protections function OCP Configures ove...

Страница 33: ...ty ResetNVRam Resets all non volatile RAM settings to their factory defaults Error Displays the Error log Calibrate State Enables disables calibration You must supply a password to enable Sequence VPr...

Страница 34: ...r and install the GPIB interface card 3 Connect your instrument to the GPIB card using a GPIB interface cable Observe the following precautions The total number of devices including the GPIB interface...

Страница 35: ...pending on your network configuration c To change the IP address of the instrument use the front panel navigation keys to select System Interface LAN IP The following parameters can be configured Enab...

Страница 36: ...e domain name which is translated into an IP address Use the navigation keys to enter an alpha character Use the up down navigation or arrow keys to select a letter from the alphabetic choices as you...

Страница 37: ...ment s Host name or IP address in your browser to launch the application i To exit out of the menu press the Meter key 4 Use IO Config to configure the TCP IP LAN Client interface Then add your instru...

Страница 38: ...live seconds 1800 Default Gateway Blank Web server Enabled Obtain DNS server from DHCP Enabled LAN Enabled DNS server Blank USB Enabled Host name A N6700A xxxxx Other factory shipped non volatile sett...

Страница 39: ...SCPI commands Refer to chapters 5 and 6 for more information on programming your power system using SCPI commands The simple examples discussed in this chapter show you how to program output voltage a...

Страница 40: ...Press the Channel key to select an output then press the Current key Enter a value and press Select To set output 1 to 1 A CURR 1 1 To set all outputs to 2 A CURR 2 1 4 For modules with multiple range...

Страница 41: ...Select To program a 50 millisecond turn on delay for output 1 and a 100 millisecond turn on delay for output 2 OUTP DEL RISE 05 1 OUTP DEL RISE 1 2 To turn on outputs 1 and 2 OUTP ON 1 2 To program a...

Страница 42: ...rrent trigger levels 3 Select the transient trigger source 4 Initiate the trigger system and provide a trigger signal Enable the Output to Respond to Trigger Commands First you must enable the output...

Страница 43: ...ollowing Bus Selects GPIB device trigger TRG or GET Group Execute Trigger Pin number Selects a pin on the external port connector as the trigger source You can specify pins 1 2 or 3 The selected pin m...

Страница 44: ...l in the initiated state You can immediately trigger the output as follows Front Panel SCPI Command Select Transient Control Select Trigger to generate an immediate trigger signal regardless of the tr...

Страница 45: ...selected time interval applying a window function to the samples and averaging the samples The power on and RST time interval and number of samples settings yield a measurement time of 21 millisecond...

Страница 46: ...e To select program values 0 1A and 3A System Related Operations Self Test A power on self test occurs automatically when you turn on the power system This test assures you that the instrument is oper...

Страница 47: ...anel keys to prevent unwanted control of the instrument from the front panel This can only be done through the following SCPI command Front Panel SCPI Command Not available SYST COMM RLST RWLock Front...

Страница 48: ...o 50 Front Panel SCPI Command Select System Preferences Display Enter a contrast value in the Contrast box Then Press Select Not available Built In Web Server The power system contains a built in Web...

Страница 49: ...s previously discussed a number of trigger sources can be selected to generate triggers With a trigger paced list you do not need to program a dwell time for each step If you do program a dwell time t...

Страница 50: ...t Step 0 and Press Select To program output 1 use LIST VOLT 15 1 LIST DWEL 1 1 Step 3 Set the list pacing to Auto so that as each dwell time elapses the next step is immediately output Front Panel SCP...

Страница 51: ...ST TOUT EOST 1 0 1 You must program a value of 0 no trigger for step 1 as a placeholder Step 7 Specify the output state after the pulse has completed For example to return the output to the state it w...

Страница 52: ...value Press Select Repeat this for each step Use the keys to select the next step To program output 1 use LIST VOLT 9 0 6 0 3 0 1 Step 3 Determine the time interval in seconds that the output remains...

Страница 53: ...t Begin Step or Tout End Step field If a zero is entered no trigger is generated for the step Repeat this for each step Use the keys to select the next step To program a trigger at the beginning of st...

Страница 54: ...ction is a function of the number of cycles of the ripple frequency contained in the acquisition window More cycles in the acquisition window results in better ripple rejection You can vary the measur...

Страница 55: ...not generated Specify a Window Function Windowing is a signal conditioning process that reduces the error in average measurements made in the presence of periodic signals and noise Two window function...

Страница 56: ...vailable FETC ARR VOLT 1 4 FETC ARR CURR 1 4 If a FETCh query is sent before the measurement is started or before it is finished the response will be delayed until the measurement trigger occurs and t...

Страница 57: ...ce from the following Bus Selects GPIB device trigger TRG or GET Group Execute Trigger Pin number Selects a pin on the external port connector as the trigger source You can specify pins 1 2 or 3 The s...

Страница 58: ...asurement system each time a triggered measurement is desired Trigger the Measurement The trigger system is waiting for a trigger signal in the initiated state You can immediately trigger the measurem...

Страница 59: ...6 This chapter contains a brief introduction to the SCPI Programming language SCPI Standard Commands for Programmable Instruments is a programming language for controlling instrument functions over th...

Страница 60: ...ng several commands within a single message Use a semicolon to separate commands within a message There is an implied header path that affects how commands are interpreted by the power system The head...

Страница 61: ...T OPER COND 1 The following message shows how to combine commands from different subsystems as well as within the same subsystem VOLT LEV 7 5 1 PROT 10 1 CURR LEV 0 25 1 Note the use of the optional h...

Страница 62: ...s be correct because the commands are not executed until the message terminator is received Because the range and setting information is received as a set no range setting conflict occurs SCPI Message...

Страница 63: ...specified in the list NOTE When adding a channel list parameter to a query you must include a space character between the query indicator and the channel list parameter Otherwise error 103 Invalid sep...

Страница 64: ...Data Formats Conventions The following SCPI conventions are used throughout this guide Angle brackets Items within angle brackets are parameter abbreviations For example NR1 indicates a specific form...

Страница 65: ...les 273 273 2 73E2 MAX MIN and MAX are the minimum and maximum limit values that are implicit in the range specification for the parameter Bool Boolean Data They can be numeric 0 1 or named ON OFF SPD...

Страница 66: ...t on command has completed OUTPUT ON 1 WAI MEAS CURR 1 OPC This command places a 1 in the Output Queue when all pending operations have completed Because it requires your program to read the returned...

Страница 67: ...gives an introduction to programming You should also be familiar with chapter 4 in order to understand how the power system functions Subsystem commands are specific to instrument functions They can b...

Страница 68: ...on mode VOLTage LEVel NRf channel Calibrates the output voltage programming CMRR channel Calibrates the voltage common mode rejection ratio Note 1 MEASure NRf channel Calibrates the voltage measuremen...

Страница 69: ...urrent protection on the selected output RANGe NRf chanlist Sets the output current range Note 4 DIGital INPut DATA Reads the state of the digital port pins OUTPut DATA NRf Sets the digital port PIN1...

Страница 70: ...chanlist Enables specific bits in the Event register NTRansition NRf chanlist Sets the Negative transition filter PTRansition NRf chanlist Sets the Positive transition filter SYSTem CHANnel COUNt Retu...

Страница 71: ...the RST Reset command Calibration Function Note 1 Output continued CAL STAT OFF OUTP PROT DEL 0 02 Current Function OUTP REL OFF SOUR CURR 80 mA Measurement Function SOUR CURR MODE FIX SENS CURR RANG...

Страница 72: ...k current limit CALibrate DATA value This command enters a calibration value that you obtain by reading an external meter You must first select a calibration level with CALibrate LEVel for the value b...

Страница 73: ...ode Calibration mode must be enabled for the power system to accept any calibration commands The first parameter specifies the On 1 or Off 0 state The second parameter is the password A numeric passwo...

Страница 74: ...red event Sense commands controls the current measurement range the bandwidth detector of the power system and the data acquisition sequence NOTE The FETCh ARRay MEASure ARRay and SENSe commands do no...

Страница 75: ...gher than the maximum current that you expect to measure Units are in amperes The instrument selects the range with the best resolution for the value entered When queried the returned value is the max...

Страница 76: ...st be the maximum voltage that you expect to measure Units are in volts The instrument selects the range with the best resolution for the value entered When queried the returned value is the maximum D...

Страница 77: ...ing OUTPut DELay RISE and OUTput DELay FALL The RST value OFF NOTE Because of internal circuit start up procedures and any installed relay options the output on command may take between 35 and 50 mill...

Страница 78: ...rned off by OUTPut STATe the inhibit function does not affect the output channel while it is in the OFF state The Inhibit mode setting is stored in non volatile memory The following modes can be selec...

Страница 79: ...1 the disabled state is Off 0 When disabled only the affected output channel is disabled when a protection fault is triggered The RST value OFF OUTPut PROTection DELay delay MIN MAX chanlist OUTPut PR...

Страница 80: ...IN SOURce CURRent MODE FIXed STEP LIST chanlist SOURce CURRent MODE chanlist These commands determine what happens to the output current when the transient system is initiated and triggered FIXed The...

Страница 81: ...I message When the range and setting information is received as a set no range setting conflict occurs The RST value the highest available range NOTE If programming a range value causes a range change...

Страница 82: ...ient trigger signals FAULt Applies only to pin 1 Setting FAULt means that pin 1 functions as an isolated fault output The fault signal is true when any output is in a protected state from OCP OVP OT P...

Страница 83: ...POINts chanlist This query returns the number of points steps programmed in the current list Applies only to models with list capability SOURce LIST DWELl time time chanlist SOURce LIST DWELl chanlis...

Страница 84: ...the last list step The value of the last voltage or current list step becomes the IMMediate value when the list completes When OFF and also when the list is aborted the output returns to the settings...

Страница 85: ...e value MIN MAX list SOURce VOLTage LEVel IMMediate AMPLitude chanlist SOURce VOLTage LEVel TRIGgered AMPLitude value MIN MAX list SOURce VOLTage LEVel TRIGgered AMPLitude chanlist These commands set...

Страница 86: ...e in volts The instrument selects the range with the best resolution for the value that is entered When queried the returned value is the maximum voltage that can be output on the range that is presen...

Страница 87: ...ame register types as the Status Operation group The outputs of the Questionable Status group are logically ORed into the QUEStionable summary bit 3 of the Status Byte register Standard Event Status G...

Страница 88: ...28 8 16 32 128 RQS OPER MSS ESB MAV QUES 4 5 6 7 UNR OT OV 0 4 QUESTIONABLE STATUS IDENTICAL REGISTERS FOR EACH CHANNEL 10 CONDITION LOGICAL OR EVENT ENABLE QSUM CHAN 1 SAME AS CHAN 1 LOGICAL OR PTR N...

Страница 89: ...s follows Bit Position 15 5 4 3 2 1 0 Bit Value 16 8 4 2 1 Bit Name WTG tran WTG meas OFF CC CV WTG tran The transient system is waiting for a trigger WTG meas The measurement system is waiting for a...

Страница 90: ...on Condition register can set the corresponding bit in the Operation Event register STATus QUEStionable EVENt chanlist This query returns the value of the Questionable Event register The Event registe...

Страница 91: ...actions When a bit of the Questionable NTR register is set to 1 then a 1 to 0 transition of the corresponding bit of the Questionable Condition register causes that bit in the Questionable Event regi...

Страница 92: ...tatus Event register Reading the register clears it The bit configuration is the same as the Standard Event Status Enable register see ESE OPC OPC The command is mainly used for program synchronizatio...

Страница 93: ...e MAV bit Reading the Status Byte register does not clear it The input summary bits are cleared when the appropriate event registers are read The MAV bit is cleared at power on by CLS or when there is...

Страница 94: ...ial chanlist This query returns the serial numbers of the selected output channels Serial numbers are comma delimited SYSTem COMMunicate RLSTate LOCal REMote RWLock chanlist SYSTem COMMunicate RLSTate...

Страница 95: ...ns a string of four fields separated by commas Field Information Agilent Technologies N67xxA 0 A xx xx Manufacturer Mainframe model number followed by a letter suffix Zero or Mainframe serial number i...

Страница 96: ...of the power system to the specified location in non volatile memory Up to 2 states can be stored in locations 0 and 1 Any state previously stored in the same location will be overwritten Use the RCL...

Страница 97: ...ers When a trigger is initiated an event on a selected trigger source causes the specified triggering action to occur If the trigger system is not initiated all triggers are ignored INITiate CONTinuou...

Страница 98: ...Initiate an output change as specified by the Current Triggered or Voltage Triggered commands Clears the WTG tran bit in the Status Operation Condition register after the transient trigger sequence ha...

Страница 99: ...Agilent Technologies has no warranty obligations or liability for any example programs The example programs are in Microsoft Visual BASIC 6 0 using the VISA COM IO library You must first load the VIS...

Страница 100: ...ese variables control the over current protection Dim overCurrentOn As Long Dim ocercurrentSetting As Double These variable are neccessary to initialize the VISA COM Dim ioMgr As AgilentRMLib SRMCls D...

Страница 101: ...hannel Turn on over current protection WriteString CURR PROT STAT ON channel Set current level WriteString CURR Str CurrSetting channel Turn the output on WriteString OUTP ON channel Measure the volta...

Страница 102: ...COM Dim ioMgr As AgilentRMLib SRMCls Dim Instrument As VisaComLib FormattedIO488 Dim ioAddress As String The following command line provides the program with the VISA name of the interface that it wi...

Страница 103: ...DWEL dwellPoints channel Turn the output on WriteString OUTP ON channel Set the trigger source to bus WriteString TRIG TRAN SOUR BUS channel Initiate the transient system WriteString INIT TRAN channe...

Страница 104: ...terface that it will be communication with It is currently set to use GPIB to communicate GPIBaddress GPIB0 5 INSTR This controls the number of points the measurement system measures measPoints 100 Th...

Страница 105: ...e number of points that the measurement system uses WriteString SENS SWE POIN Str measPoints channel Set the time interval between points WriteString SENS SWE TINT Str timeInterval channel Set the mea...

Страница 106: ......

Страница 107: ...ainframe is included at the end of the chapter Unless otherwise noted specifications are warranted over the ambient temperature range of 0 to 55 C Sensing is at the output terminals of the power syste...

Страница 108: ...1 5 mV Current high range 0 1 20 mA 0 04 200 A Current low range 100 mA 0 7 V NOTE 2 100 mA 0 50 V N A N A 0 04 15 A 0 04 55 A Measurement Accuracy at 23 C 5 C Voltage high range 0 05 20 mV 0 016 6 mV...

Страница 109: ...mV 4 mV 6 mV Current 2 mA 2 mA 2 mA 2 mA 2 mA Source Effect Regulation Voltage 1 mV 2 mV 2 mV 4 mV 6 mV Current 1 mA 1 mA 1 mA 1 mA 1 mA Programming Accuracy 23 C 5 C after 30 minute warm up Applies...

Страница 110: ...V Current high range 100 ppm 45 A 33 ppm 10 A Current low range 0 1 A N A 60 ppm 1 5 A Measurement Temperature Coefficient per C Voltage high range 25 ppm 35 V 23 ppm 40 V Voltage low range 5 5 V N A...

Страница 111: ...ming Settling Time with no load time from start of voltage change to output voltage within 50mV of final value Voltage setting from 10 V to 0 V 0 45 ms 0 45 ms Voltage setting from 50 V to 0 V 1 4 ms...

Страница 112: ...2A Phase IMPEDANCE milliohms 100 Magnitude 1k 320 160 80 40 20 10 5 2 5 135 90 45 0 45 FREQUENCY Hz 10k 100k Model N6762A CV Mode 50V 2A PHASE degrees Phase 100 Magnitude 1k 8 4 2 1 0 5 0 25 0 125 0 0...

Страница 113: ...ion Accuracy 0 25 250 mV 0 25 250 mV 0 25 250 mV 0 25 250 mV 0 25 300 mV Maximum setting 7 V 10 V 22 V 38 5 V 55 V Response time 50 s from occurrence of over voltage condition to start of output shutd...

Страница 114: ...DC Maximum low level output voltage 0 5 V 4 mA 1 V 50 mA 1 75 V 100 mA Maximum low level sink current 100 mA Typical high level leakage current 0 12 mA 16 5 VDC Maximum low level input voltage 0 8 V M...

Страница 115: ...January 1991 Sound Pressure Lp 70 dB A At Operator Position Normal Operation According to EN 27779 Type Test Schalldruckpegel Lp 70 dB A Am Arbeitsplatz Normaler Betrieb Nach EN 27779 Typpr fung Outpu...

Страница 116: ...5 mm 22 5 549 7 mm 21 64 RIGHT SIDE 482 6 mm 19 00 425 45 mm 16 75 25 4 mm 1 00 AIRFLOW 0 50 V 5 A 10 V 1 A Voltage Current 0 50 V 33 V Voltage 1 A 2 A 1 5 A 3 A Current 50 W output 100 W output Autor...

Страница 117: ...the Agilent N6700 MPS Instructions are given for performing the procedures either from the front panel or from a controller over the GPIB NOTE Perform the verification tests before calibrating your po...

Страница 118: ...t 8 1 2 digits Accuracy 20 ppm Agilent 3458A or equivalent Current Monitor 15 A 0 1 ohm 0 04 TC 5ppm C Guildline 9230 15 Load Resistors 50 250 W 1 TC 100 ppm C CV noise 25 250 W 1 TC 100 ppm C CV nois...

Страница 119: ...o computers and system voltmeters settling times and slew rates of the power system may have to be taken into account Wait statements can be used in the test program if the test system is faster than...

Страница 120: ...oltage Programming Readback High Voltage 5 Record the output voltage readings on the DVM and the front panel display The readings should be within the limits specified in the test record form for the...

Страница 121: ...ghtly 5 Adjust the transformer or AC source to the lowest rated line voltage 86 VAC 6 Record the output voltage reading from the DVM 7 Adjust the transformer or AC source to the highest rated line vol...

Страница 122: ...ination Divide the reading of the rms voltmeter by 10 The result should not exceed the rms limits in the test record form for the appropriate model under CV Ripple and Noise rms Transient Recovery Tim...

Страница 123: ...shunt resistance to convert to amps and record this value Iout Also record the current reading on the front panel display The readings should be within the limits specified in the test record form fo...

Страница 124: ...ing across the current monitoring resistor by its resistance to convert to amps and record this value Iout 6 Short the electronic load Divide the voltage drop DVM reading across the current monitoring...

Страница 125: ...ource to the lowest rated line voltage 86 VAC 7 Divide the voltage drop DVM reading across the current monitoring resistor by its resistance to convert to amps and record this value Iout 8 Adjust the...

Страница 126: ...Constant Current Tests Current Programming Readback Minimum Current Iout Front Panel Display Readback High Current Iout Front Panel Display Readback Both Both N6751A N6752A N6751A N6752A 10 mA Iout 4...

Страница 127: ...Iout Front Panel Display Readback High Current Iout Front Panel Display Readback Both Both N6761A N6762A N6761A N6762A 0 8 mA Iout 200 A 1 4992 A 2 9986 A Iout 0 65 mA Iout 1 1 mA __________ ________...

Страница 128: ...__ 10 mV 2 mV Transient Response Voltage at 200 s 80 mV __________ 80 mV Constant Current Tests Current Programming Readback Minimum Current Iout Front Panel Display Readback High Current Iout Front P...

Страница 129: ..._ 80 mV Constant Current Tests Current Programming Readback Minimum Current Iout Front Panel Display Readback High Current Iout Front Panel Display Readback Both Both N6732A N6742A N6732A N6742A 10 mA...

Страница 130: ...nstant Current Tests Current Programming Readback Minimum Current Iout Front Panel Display Readback High Current Iout Front Panel Display Readback Both Both N6733A N6743A N6733A N6743A 10 mA Iout 20 m...

Страница 131: ...Constant Current Tests Current Programming Readback Minimum Current Iout Front Panel Display Readback High Current Iout Front Panel Display Readback Both Both N6734A N6744A N6734A N6744A 10 mA Iout 4...

Страница 132: ...tant Current Tests Current Programming Readback Minimum Current Iout Front Panel Display Readback High Current Iout Front Panel Display Readback Both Both N6735A N6745A N6735A N6745A 10 mA Iout 4 mA 0...

Страница 133: ...You may calibrate only the voltage or current portion and then save the constants However the voltage or current calibration sequence must be performed in the order shown in this appendix in its enti...

Страница 134: ...put to an output channel Step 2 Select the full scale voltage programming and measurement range The following example selects the 50 volt full scale range of channel 1 The value entered must be the ma...

Страница 135: ...Sequences Vprog Then select the Low range CAL VOLT 5 1 Step 8 Select the first voltage calibration point Front Panel SCPI Command Select Next The information field should indicate Enter P1 data CAL LE...

Страница 136: ...red Data field Enter the data from the external DVM Press Select when done CAL DATA data Step 15 Select the second voltage calibration point Front Panel SCPI Command Select Next The information field...

Страница 137: ...range Front Panel SCPI Command Select System Cal Sequences Iprog Then select the High range CAL CURR 10 1 Step 3 Select the first current calibration point Front Panel SCPI Command Select Next The in...

Страница 138: ...CAL CURR 0 1 1 Step 9 Select the first current calibration point Front Panel SCPI Command Select Next The information field should indicate Enter P1 data CAL LEV P1 OPC Step 10 Wait 3 minutes for the...

Страница 139: ...ront Panel SCPI Command Select Next The information field should indicate Enter P1 data CAL LEV P1 OPC Step 16 Re connect the precision shunt resistor to the output and connect the DVM across the shun...

Страница 140: ...l SCPI Command Select System Cal Sequences IPeak CAL CURR PEAK 1 Step 22 Select the first current calibration point Front Panel SCPI Command Select Next The calibration is automatic CAL LEV P1 OPC Ste...

Страница 141: ...sired you can enter alphanumeric data in this field Select System Cal Save Select Save to save all calibration data Select System Cal State Select Disable to exit calibration mode To enter a calibrati...

Страница 142: ......

Страница 143: ...al Control Port148 A Digital Control Port consisting of three I O pins is provided to access various control functions Each pin is user configurable The following control functions are available for t...

Страница 144: ...und to prevent ground loops The following chart describes the possible pin configuration for the available control functions For a complete description of the electrical characteristics of the digital...

Страница 145: ...ommon for pin 1 This arrangement provides an optically isolated output Pin 2 s selected function is ignored Note that the Fault output signal remains latched until the fault condition is cleared You m...

Страница 146: ...a user definable fault occurs Bi directional Digital I O When the Digital Control pins are configured for bi directional digital I O the pins function as a bi directional input outputs the state of wh...

Страница 147: ...pin 4 The pin status reflects the true condition of the external signal that is applied to the pin The pin state is not affected by the value of the digital output word B Digital Interface Circuits A...

Страница 148: ...ger output function for pin 1 DIG PIN1 FUNC TOUT To select the trigger input function for pin 2 DIG PIN2 FUNC TINP To select the trigger polarity DIG PIN POL pol Fault Output Pins 1 and 2 can be confi...

Страница 149: ...he polarity of the pins can also be configured Front Panel SCPI Command Select System DigPort then either Pin 1 Pin2 or Pin 3 Select Function and configure the pin as DigIO Go back one level select Po...

Страница 150: ......

Страница 151: ...e 152 Operating Checklist 152 Repackaging for Shipment 152 Disassembly 153 Error Messages 156 This chapter discusses the procedures involved for returning a failed instrument to Agilent Technologies f...

Страница 152: ...e working the display contrast setting may be too light or too dark Use the front panel menu to set the display contrast Does the instrument fail self test Remove all external connections to the instr...

Страница 153: ...s in the mainframe T25 Torx driver remove a mainframe from the equipment rack Removing Installing Modules WARNING SHOCK HAZARD FAN HAZARD Turn off the mainframe and disconnect its power cord before at...

Страница 154: ...mainframe Use the two screws from the power module or filler module and install them at either end of the module Step 5 Replace the blower cover when finished Be careful not to bend the RFI clips on...

Страница 155: ...om the rear panel Then remove the screw at the end of the carrier board that attaches the cover to the board refer to the following figure Lift off the cover Step 3 The calibration switch is located u...

Страница 156: ...sequence of calibration commands Calibration commands have not been entered in the proper sequence 105 Unexpected output current The measured output current is outside the acceptable range 106 Zero me...

Страница 157: ...304 Volt and curr in incompatible transient modes Voltage and current cannot be in Step and List mode at the same time 305 A triggered value is on a different range A triggered value is on a differen...

Страница 158: ...he mantissa of a numeric parameter contained more than 255 digits excluding leading zeros 128 Numeric data not allowed A numeric parameter was received but a character string was expected 130 Suffix e...

Страница 159: ...cuted because the value was outside the valid range 223 Too much data A data element was received that contains more data than the instrument can handle 224 Illegal parameter value An exact value was...

Страница 160: ...e measured value n4 is the channel location of the failed module 202 Selftest Fail DACs 0 expected n1 to n2 measured n3 chan n4 Both voltage and current DACs are at zero n1 and n2 are the expected lim...

Страница 161: ...contain any Agilent of N673xA or N674xA power modules This is true even if the mainframes also contain Agilent N675xA or N676xA power modules Pre configured Agilent MPS Model Description Previous Agi...

Страница 162: ...er Status functions Serial Poll will be controlled by the SCPI status model and will not act like a 662xA serial poll SRQ will be controlled by the SCPI status model Parallel poll will not work The Ag...

Страница 163: ...CPON on off Sets the power on state of the output channels For on off 0 all outputs will be off state when the unit is turned on For on off 1 all outputs will be in the on state when the power system...

Страница 164: ...CURR RANG ISET ch current Sets the current of the specified output channel CURR ISET ch Queries the present current setting of the specified output channel The response is a real number CURR ISTEP ch...

Страница 165: ...ecified channel This Option 750 capability is supported OUTP PROT CLE ROM Queries the revision of the power system s firmware IDN SROM Queries the revision of the power system s firmware IDN SRQ setti...

Страница 166: ...erating voltage is greater than the full scale range selected the present output voltage will be reduced to the full scale value of the new range selected If the voltage entered is larger than the hig...

Страница 167: ...72 CAL DATE 72 CAL DPR 72 CAL LEV 72 CAL PASS 73 CAL SAVE 73 CAL STAT 73 CAL VOLT 73 CAL VOLT CMRR 73 CAL VOLT MEAS 73 Caution 3 CC 89 load effect 124 source effect 124 channel location 17 parameter...

Страница 168: ...153 E electronic load 119 electrostatic discharge precautions 153 environment conditions 15 ERR 93 error messages 156 ESB 93 EXE 92 external trigger configuring 148 connections 145 F fault output con...

Страница 169: ...unit separator 64 model differences 9 numbers 14 MSS 87 93 multiple load connections 20 multipliers 65 N numeric data formats 65 O OC 90 OFF 89 OPC 92 OPER 93 operating checklist 152 operation status...

Страница 170: ...sage unit 63 multiple commands 60 program message 62 response message 62 subsystem commands 68 screen saver front panel 47 self test 46 sense commands SENS CURR RANG 75 SENS FUNC 75 SENS SWE OFFS POIN...

Страница 171: ...D 94 SYST CHAN OPT 94 SYST CHAN SER 94 SYST COMM RLST 94 SYST ERR 95 SYST VERS 95 system protection connections 146 T test extensions 49 54 56 transient recovery time 122 transient trigger generate 45...

Страница 172: ...61326 1997 A1 1998 A2 2000 EN 61326 1997 A1 1998 A2 2001 CISPR 11 1997 EN 55011 1998 IEC EN 61000 4 2 1995 A1 1998 A2 2001 IEC EN 61000 4 3 2002 IEC 61000 4 4 1995 A1 2000 EN 61000 4 4 1995 A1 20 IEC...

Страница 173: ...ations have been adjusted The calibration procedure for the Low range current programming and measurement has also been adjusted Output impedance graphs for models N6751A N6752A N6761A and N6762A have...

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