Agilent Technologies 6813B, 6811B Calibrating and Entering rms Current Measurement Values, Off

Page 75

Verification and Calibration - B

Calibrating and Entering rms Current Measurement Values

Action

Display

40.Connect the DVM (ac rms mode), current shunt, and load resistor as shown in figure B-1 with S1 closed.

41.

Press Shift Calibration, scroll to the CAL CURR MEAS command, and

CAL:CURR:MEAS

 

press Enter.

 

42.

Press Shift Calibration, scroll to the CAL LEV P1 command, and press

CAL:LEV P1

 

Enter.

 

43.

Press Shift Calibration, scroll to the CAL DATA 0.00 command.

CAL:DATA 0.00

 

Calculate the rms current value (DVM ac rms voltage/shunt resistance), and

 

 

use the Entry keypad to enter the rms current.

 

44.

Press Shift Calibration, scroll to CAL LEV P1 command, use ° to scroll

CAL:LEV P2

 

to the P2 parameter, and press Enter.

 

45.

Press Shift Calibration, scroll to the CAL DATA 0.00 command.

CAL:DATA 0.00

 

Calculate the rms current value (DVM ac rms voltage/shunt resistance), and

 

 

use the Entry keypad to enter the rms current.

 

The ac source is now holding the new rms current measurement calibration constants in RAM.

Calibrating the Output Impedance

Action

Display

46.Connect only the output impedance resistor across the output of the ac source. Do not connect any other equipment.

47.

Press Shift Calibration, scroll to the CAL IMP command, and press

CAL:IMP

 

Enter.

 

48.

Wait for the ac source to compute the output impedance calibration

 

 

constant. The display returns to Meter mode when the calculation is

 

 

complete.

 

The ac source is now holding the new output impedance calibration constants in RAM.

Saving the Calibration Constants

CAUTION: Storing calibration constants overwrites the existing ones in non-volatile memory. If you are not sure you want to permanently store the new constants, omit this step. The ac source calibration will then remain unchanged.

 

Action

Display

49.

Press Shift Calibration, scroll to CAL SAVE, and press Enter.

CAL:SAVE

50.

Press Shift Calibration, select CAL OFF, and press Enter to exit

CAL OFF

 

Calibration mode. *RST and *RCL will also set the calibration state to

 

 

OFF.

 

75

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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 Document Orientation TopicLocation Options Safety ConsiderationsOptions and Parts Earlier AC Source ModelsDescription Operator Replaceable PartsAgilent Part Number Front Panel/Remote Operation CapabilitiesModel Description 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 MountingInstalling the Power Cord Input ConnectionsInput Source and Line Fuse Output Connections Connecting the Power CordCurrent Ratings Wire ConsiderationsRemote Sense Connections Voltage DropsRemote Sense Connections Trigger Connections Digital ConnectionsRemote Sensing and OVP Considerations 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 FunctionFunction Keys Immediate Action KeysScrolling Keys Display Display Command FunctionMeter Display Keys Display MeasurementList Output Control KeysRST Protection and Status Control Keys ProtclearCLS Abort Trigger and List Control KeysInitimmed IMMThrough Are used for entering numeric values Is the decimal Entry KeysSetting the Output Voltage Amplitude Examples of Front Panel ProgrammingSet the output to 120 V rms as follows 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 VoltSyncsour Phase Example DisplaySyncphas Initimmed 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 CalibrationTest Setup Table B-1. Equipment RequiredRecommended Model 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 ProcedureEnable Calibration Mode Front Panel CalibrationCalibrating and Entering Voltage Offset Values Calibrating and Entering DC Voltage Gain Values Calibrating and Entering AC rms Voltage Gain ValuesCallev P4 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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