Agilent Technologies 6812B Line Fuse, Runtime Error Messages, Indicates, May appear at runtime

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Turn-On Checkout - 3

Runtime Error Messages

Under unusual operating conditions, the front panel display may show OVLD. This indicates that the output voltage or current is beyond the range of the meter readback circuit. If the front panel display

indicates -- -- -- -- -- --

, a GPIB measurement is in progress. Appendix C lists other error messages that

may appear at runtime.

 

Line Fuse

If the ac source appears "dead" with a blank display and the fan not running, first check your power source to be certain line voltage is being supplied to the ac source. If the power source is normal, the ac source line fuse may be defective. If the ac source has a defective fuse, replace it only once. If it fails again, investigate the reason for the failure. Proceed as follows:

WARNING: Hazardous voltages can remain active inside the ac source even after it has been turned off. Fuse replacement should be done only by a qualified electronics technician.

The line fuse is located inside the ac source. To change it, refer to Figure 3-2 and proceed as follows:

1.Turn off the front panel power switch and unplug the line cord from the ac source.

2.Remove the ac cover as follows:

a.Remove the four screws securing the carrying straps and dustcover (use a T25 Torx drive).

b.Spread the bottom rear of the cover and pull it back to remove it.

3.Observe the two LEDs on each side of the unit. If either LED is ON, there is still hazardous voltages present inside the ac source. Wait until the LEDs are out before proceeding (it may take several minutes for the LEDs to go out.)

4.Replace the fuse with one of the same type. Do not use a slow-blow type fuse

5.Replace the cover.

6.Connect the line cord to the ac source.

7.Turn on power and verify operation.

SIDE VIEW (W ITH COVER REMOVED)

F US ELED

Figure 3-2. AC Source Fuse Location

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Contents User’s Guide AC Power Solutions Agilent Models 6811B, 6812B, and 6813BCertification Warranty InformationGeneral Safety SummarySafety Symbols EMC DeclarationPrinting History Acoustic Noise InformationTable of Contents Performing the Verification Tests Performing the Calibration ProcedureEntry Keys Examples of Front Panel Programming IntroductionLine Voltage Conversion Error Number ListPage Location Document OrientationTopic Options Safety ConsiderationsOptions and Parts Earlier AC Source ModelsAgilent Part Number DescriptionOperator Replaceable Parts Model Description Front Panel/Remote OperationCapabilities Steady-state Output Characteristic in real-time mode Steady-state Output CharacteristicTypical Peak Current Output Capacities Peak Current/Dynamic Power CapabilityPeak Current Limit Peak Inrush ExampleCapacitance in μF 127 254 Ipeak settingReal Time Regulation RMS Current Limit CircuitVoltage Regulation Output ImpedanceOutput Coupling Page Items Supplied CleaningInspection Damage Packaging MaterialNot block the fan exhaust at the rear of the unit LocationBench Operation Rack MountingInput Source and Line Fuse Installing the Power CordInput Connections Output Connections Connecting the Power CordCurrent Ratings Wire ConsiderationsRemote Sense Connections Voltage DropsRemote Sense Connections Remote Sensing and OVP Considerations Trigger ConnectionsDigital Connections Controller Connections Gpib ConnectorRS-232 Data Format Interface CommandsRS-232 Connector RS-232 InterfaceNull Modem Interface Lines Response Data Terminator Hardware HandshakePreliminary Checkout IntroductionCheckout Procedure Using the KeypadPress 1, 6, 0, Enter Press 1, 2, 0, EnterPress Output On/Off Press ProtectCase of Trouble Error MessagesSelftest Errors Power-On Selftest ErrorsMay appear at runtime Runtime Error MessagesLine Fuse IndicatesPage Front Panel, Overall View Front Panel DescriptionAC+DC System Keys Dis lay Command FunctionScrolling Keys Function KeysImmediate Action Keys Display Display Command FunctionMeter Display Keys Display MeasurementList Output Control KeysRST CLS Protection and Status Control KeysProtclear Abort Trigger and List Control KeysInitimmed IMMThrough Are used for entering numeric values Is the decimal Entry KeysSet the output to 120 V rms as follows Setting the Output Voltage AmplitudeExamples of Front Panel Programming Action Setting the Output FrequencySetting the DC Offset To verify the output, use the meter menuClearing Protection Conditions Setting a Protection FeatureOvercurrent protection feature as follows Bit Number Bit WeightPulse Using Transient Voltage ModesVoltm Step Step TransientPulse Transient VolttDcycle List TransientVoltm Pulse WidthVolt EOL Step Auto Trigger Delays and Phase SynchronizationVoltm Fixed List Count Dwel Dwel EOL VoltSyncphas Initimmed Syncsour PhaseExample Display Programming Slew Rates Using Slew Rates to Generate WaveformsSlewt Voltm FixedSlew Step SlewmCurrpeak Syncsour Phase SyncphasMeasuring Peak Inrush Current CurrlevAction Display To set the Gpib address, proceed as follows Setting the Gpib Address and RS-232 ParametersTo configure the RS-232 interface, proceed as follows Saving and Recalling Operating StatesTable A-1. Performance Specifications1 SpecificationsTable A-1. Performance Specifications Table A-2. Supplemental Characteristics Supplemental CharacteristicsTrig Out HC TTL output Trig In 10k pullup Table A-3. Operation Below 45 Hz Operation Below 45 HzPage Equipment Required Verification and CalibrationRecommended Model Test SetupTable B-1. Equipment Required Action Normal Result Turn-On Checkout ProcedurePerforming the Verification Tests AC Voltage Programming and Measurement AccuracyVolt 50, Currrange LOW, Currlev DC Voltage Programming and Measurement AccuracyRMS Current Accuracy Test Volt 0, Outpcoup DC, OffsetRMS Current Measurement Accuracy Table B-2. Agilent 6811B Verification Test RecordTable B-3. Agilent 6812B Verification Test Record DC Programming and Measurement AccuracyTable B-4. Agilent 6813B Verification Test Record Table B-3Front Panel Calibration Menu Performing the Calibration ProcedureCalibrating and Entering Voltage Offset Values Enable Calibration ModeFront Panel Calibration Callev P4 Calibrating and Entering DC Voltage Gain ValuesCalibrating and Entering AC rms Voltage Gain Values Calibrating and Entering rms Current Values Calibrating the OVP Trip PointOFF Calibrating and Entering rms Current Measurement ValuesCalibrating the Output Impedance Saving the Calibration ConstantsCalibration Over the Gpib Changing the Calibration PasswordCalibration Error Messages Table B-5. Gpib Calibration Error MessagesFigure B-2. Calibration Program Listing Sheet 1 Figure B-2. Calibration Program Listing Sheet 2 Figure B-2. Calibration Program Listing Sheet 3 Page Table C-1. Error Numbers Error Number ListError Messages Error Messages C Page Check the Line Jumpers all Models Check the Jumper Wire Model Agilent 6811B/6812B onlyCheck the Power Transformer Connector all Models Open the UnitFigure D-1. Line Voltage Conversion Components Close the UnitIndex Index Index Japan United States Latin AmericaCanada Australia/New Zealand Europe Asia PacificManual Updates
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6812B, 6811B, 6813B specifications

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