Agilent Technologies n3304a, n3305a Introduction, Checkout Procedure, Checkout Programming Values

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4

Turn-On Checkout

Introduction

Successful tests in this chapter provide a high degree of confidence that the electronic load is operating properly. For verification tests, see Appendix B.

NOTE: This chapter provides a preliminary introduction to the electronic load front panel. See Chapter 5 for more detail.

Checkout Procedure

The tests in this section checks for proper operation of the electronic load. If you have not already done so, connect the power cord to the unit and plug it in.

The following procedure assumes that the unit turns in the factory-default state. If you need more information about the factory default state, refer to the *RST command in Chapter 4 of the Programming Guide. Note that the values shown in the Display column may not exactly match the values that appear on the front panel of your unit.

Table 4-1. Checkout Programming Values

Model	Voltage	Current	Note
All	10V	10A	The settings of the power supply and the values used in the procedure were
			selected so that they can be used with any module. You can use different
			settings, but the results of the test will differ from the results shown below.

Procedure

1.Turn the unit on. The electronic load undergoes a self-test when you first turn it on.

2.Check that the electronic load fan is on.

3.Connect a 10V, 10A power supply to the input connectors of the first channel of the electronic load.

4.Set the power supply voltage to 10V and current limit to 10A.

5.Depress the following front panel keys in the indicated order: Current , 5, Enter.

Display

**************

1 0.00 0.00

1 10.00 0.00

1 10.00 4.99

Explanation

During selftest, all display segments are briefly lit, followed by the channel number displayed and the CC annunciator on.

You should be able to hear the fan and feel the air coming from the back of the unit.

Observe the front panel. It should display the voltage that the power supply was set to.

The electronic load is drawing 5A and is operating in the CC mode. The CC annunciator is on. The power supply should be operating in the CV mode.

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Contents USER’S Guide Warranty Information CertificationSafety Summary GeneralSafety Symbols Declaration Declaration of ConformityAcoustic Noise Information Printing HistoryTable of Contents TURN-ON Checkout 101 Quick Reference Front Panel -At a GlanceQuick Reference Instrument ConfigurationRear Panel At a Glance Front Panel Number Entry Use the Function keys and Entry keys to enter a new valueFront Panel Annunciators Immediate Action KeysFront Panel Menus At a Glance Quick Reference Front Panel Menus VoltageScpi Programming Commands At a Glance Complete description of all programming commandsQuick Reference Scpi Commands Getting Started Map Task Where to find informationDocument Orientation Description Safety ConsiderationsOptions and Accessories Remote Programming Features and CapabilitiesFront Panel Controls Immediate Current Level Constant Current CC ModeOperating Modes Transient Current Level Constant Resistance CR ModeGeneral Information Triggered Current Level Software Current LimitTransient Resistance Level Constant Voltage CV ModeTriggered Resistance Level Triggered Voltage Level Transient Voltage LevelPulsed Transient Operation Transient OperationContinuous Transient Operation Toggled Transient OperationTriggered Operation Triggering a preset levelList Operation Triggering a transient pulseSlew Rate and Minimum Transition Time Risetime Transition LimitationTransition Time Slew Rate Examples Input Control Protection FeaturesResetting Latched Protection Short On/OffGeneral Information Overvoltage OverpowerOvertemperature OvercurrentStatus Reporting Reading Remote Programming ErrorsReverse Voltage Remote Sensing Saving and Recalling SettingsExternal Control Signals Monitor OutputsPort On/Off FaultInput Measurements RMS Measurements Power MeasurementsDC Measurements Minimum and Maximum MeasurementsDamage Packaging Material CleaningInspection Items SuppliedInstallation Installing the ModulesProcedure Location Channel Number3A. N3300A Outline Diagram Do not block the fan exhaust at the rear of the unit Bench OperationRack Mounting Input Connections Power CordManually-Tightened Connectors 8mm Screw Terminal Connector option UJ1 6a. Manual ConnectorWire Considerations Maximum Wire Lengths to Limit Voltage Drops Stranded Copper Wire Ampere CapacityWire Size Ampacity A11 and A10 Control ConnectorA1-A3 +S and -SSense Switch Trigger and Digital ConnectionsRS-232 Interface Computer ConnectionsGpib Interface Remote Sense Connections Application ConnectionsLocal Sense Connections Parallel Connections11. Remote Sensing Low Voltage Operation 13. Zero Volt LoadingCheckout Programming Values Checkout ProcedureIntroduction Selftest Error Codes Error MessagesSelftest Errors Case of TroubleFront Panel Description Front Panel, Overall ViewFront Panel Operation Display Command Function System KeysFunction keys Immediate Action KeysDisplay Measurement Scrolling KeysMetering Keys Input Control Keys InpshorList Control Keys Transient Control KeysTrigger Control Keys Entry Keys Entry KeysExamples of Front Panel Programming Using the Front Panel DisplaySet the constant current mode input Programming Constant Current, Voltage and Resistance ModesSet the constant resistance mode input Set the constant voltage mode inputSet transient operation for Continuous mode Programming Transient OperationSet transient operation for Pulse mode Set transient operation for Toggled modeProgramming Lists Tmode ToggList Sequence Making Basic Front Panel Measurements Querying and Clearing Output Protection and ErrorsQuery and Clear Errors as follows Use the Meter menu for making front panel measurementsSet the Gpib address as follows Setting the Gpib AddressStoring and Recalling Instrument States Save an instrument state in location 0 as followsSpecifications Specifications Specifications a Table A-2. Supplemental CharacteristicsSpecifications N3302A N3303A N3304A N3305A N3306APerformance Test and Calibration Procedures Equipment RequiredImon Zero Verification CC Mode TestsPerformance Tests Performance Test and CalibrationPerformance Test and Calibration B CV Mode TestsCC Mode Regulation Test Voltage Programming and Measurement Accuracy TestCV Mode Regulation Test Resistance Range 2 Programming Accuracy CR Mode TestsResistance Range 1 Programming Accuracy Resistance Range 3 Programming Accuracy Resistance Range 4 Programming AccuracyTransient Generator Mode Tests Frequency and Duty Cycle AccuracyPerformance Test and Calibration Pulse Width Accuracy Output 705TRAN on Output 705TRIGIMMAgilent N3302A Verification Test Record Agilent N3303A Verification Test Record Agilent N3304A Verification Test Record Agilent N3305A Verification Test Record Agilent N3306A Verification Test Record Calibration Figure B-3. Voltage Calibration Parameters Calibrated Table B-2 Variables and Power Source SettingsCalibration IMON, Iprog and Current Calibration Program Performance Test and Calibration Wait Performance Test and Calibration Voltage Calibration Program Print TABXY9,15CALIBRATING High Voltage RangePerformance Test and Calibration Resistance Calibration Program Calibrating Range Performance Test and Calibration B 100 Index 101Index 102103 Europe Asia Pacific United States Latin AmericaCanada Australia/New Zealand JapanManual Updates