Agilent Technologies 6812B, 6813B, 6811B manual Calibrating the OVP Trip Point

Page 74

B - Verification and Calibration

26.

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

CAL:LEV P2

 

scroll to the P2 parameter, and press Enter. This selects the second

 

 

calibration point.

 

27.

Press Shift Calibration, scroll to CAL DATA 0.00, and use the Entry

CAL:DATA 0.00

 

keypad to enter the product of the transformer ratio times the ac voltage

 

 

value displayed on the DVM.

 

28.

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

CAL:LEV P3

 

scroll to the P3 parameter, and press Enter.

 

29.

Press Shift Calibration, scroll to CAL DATA 0.00, and use the Entry

CAL:DATA 0.00

 

keypad to enter the product of the transformer ratio times the ac voltage

 

 

value displayed on the DVM.

 

30.

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

CAL:LEV P4

 

scroll to the P4 parameter, and press Enter.

 

31.

Press Shift Calibration, scroll to CAL DATA 0.00, and use the Entry

CAL:DATA 0.00

 

keypad to enter the product of the transformer ratio times the ac voltage

 

 

value displayed on the DVM.

 

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

Calibrating the OVP Trip Point

 

Action

Display

32.

Press Shift Calibration, scroll to CAL VOLT PROT, and press Enter.

CAL:VOLT:PROT

33.

Wait for the ac source to compute the OVP calibration constant. The

 

 

display returns to Meter mode when the OVP calculation is complete.

 

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

Calibrating and Entering rms Current Values

Action

Display

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

35.

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

CAL:CURR:AC

 

press Enter.

 

36.

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

CAL:LEV P1

 

Enter.

 

37.

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.

 

38.

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

CAL:LEV P2

 

scroll to the P2 parameter, and press Enter.

 

39.

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 calibration constants in RAM.

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Contents AC Power Solutions Agilent Models 6811B, 6812B, and 6813B User’s GuideWarranty Information CertificationSafety Summary GeneralSafety Symbols Declaration EMCAcoustic Noise Information Printing HistoryTable of Contents Introduction Performing the Calibration ProcedureEntry Keys Examples of Front Panel Programming Performing the Verification TestsError Number List Line Voltage ConversionPage Location Document OrientationTopic Earlier AC Source Models Safety ConsiderationsOptions and Parts OptionsAgilent Part Number DescriptionOperator Replaceable Parts Model Description Front Panel/Remote OperationCapabilities Steady-state Output Characteristic Steady-state Output Characteristic in real-time modePeak Inrush Example Peak Current/Dynamic Power CapabilityPeak Current Limit Typical Peak Current Output CapacitiesIpeak setting Capacitance in μF 127 254Output Impedance RMS Current Limit CircuitVoltage Regulation Real Time RegulationOutput Coupling Page Damage Packaging Material CleaningInspection Items SuppliedRack Mounting LocationBench Operation Not block the fan exhaust at the rear of the unitInput Source and Line Fuse Installing the Power CordInput Connections Connecting the Power Cord Output ConnectionsVoltage Drops Wire ConsiderationsRemote Sense Connections Current RatingsRemote Sense Connections Remote Sensing and OVP Considerations Trigger ConnectionsDigital Connections Gpib Connector Controller ConnectionsRS-232 Interface Interface CommandsRS-232 Connector RS-232 Data FormatHardware Handshake Null Modem Interface Lines Response Data TerminatorIntroduction Preliminary CheckoutUsing the Keypad Checkout ProcedurePress Protect Press 1, 2, 0, EnterPress Output On/Off Press 1, 6, 0, EnterPower-On Selftest Errors Error MessagesSelftest Errors Case of TroubleIndicates Runtime Error MessagesLine Fuse May appear at runtimePage Front Panel Description Front Panel, Overall ViewAC+DC Dis lay Command Function System KeysScrolling Keys Function KeysImmediate Action Keys Display Measurement Display Command FunctionMeter Display Keys DisplayOutput Control Keys ListRST CLS Protection and Status Control KeysProtclear IMM Trigger and List Control KeysInitimmed AbortEntry Keys Through Are used for entering numeric values Is the decimalSet the output to 120 V rms as follows Setting the Output Voltage AmplitudeExamples of Front Panel Programming To verify the output, use the meter menu Setting the Output FrequencySetting the DC Offset ActionBit Number Bit Weight Setting a Protection FeatureOvercurrent protection feature as follows Clearing Protection ConditionsUsing Transient Voltage Modes PulseVoltt Step TransientPulse Transient Voltm StepWidth List TransientVoltm Pulse DcycleDwel EOL Volt Trigger Delays and Phase SynchronizationVoltm Fixed List Count Dwel Volt EOL Step AutoSyncphas Initimmed Syncsour PhaseExample Display Using Slew Rates to Generate Waveforms Programming Slew RatesStep Slewm Voltm FixedSlew SlewtCurrlev Syncsour Phase SyncphasMeasuring Peak Inrush Current CurrpeakSaving and Recalling Operating States Setting the Gpib Address and RS-232 ParametersTo configure the RS-232 interface, proceed as follows Action Display To set the Gpib address, proceed as followsSpecifications Table A-1. Performance Specifications1Table A-1. Performance Specifications Supplemental Characteristics Table A-2. Supplemental CharacteristicsTrig Out HC TTL output Trig In 10k pullup Operation Below 45 Hz Table A-3. Operation Below 45 HzPage Verification and Calibration Equipment RequiredRecommended Model Test SetupTable B-1. Equipment Required AC Voltage Programming and Measurement Accuracy Turn-On Checkout ProcedurePerforming the Verification Tests Action Normal ResultVolt 0, Outpcoup DC, Offset DC Voltage Programming and Measurement AccuracyRMS Current Accuracy Test Volt 50, Currrange LOW, CurrlevDC Programming and Measurement Accuracy Table B-2. Agilent 6811B Verification Test RecordTable B-3. Agilent 6812B Verification Test Record RMS Current Measurement AccuracyTable B-3 Table B-4. Agilent 6813B Verification Test RecordPerforming the Calibration Procedure Front Panel Calibration MenuCalibrating 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 the OVP Trip Point Calibrating and Entering rms Current ValuesSaving the Calibration Constants Calibrating and Entering rms Current Measurement ValuesCalibrating the Output Impedance OFFTable B-5. Gpib Calibration Error Messages Changing the Calibration PasswordCalibration Error Messages Calibration Over the GpibFigure B-2. Calibration Program Listing Sheet 1 Figure B-2. Calibration Program Listing Sheet 2 Figure B-2. Calibration Program Listing Sheet 3 Page Error Number List Table C-1. Error NumbersError Messages Error Messages C Page Open the Unit Check the Jumper Wire Model Agilent 6811B/6812B onlyCheck the Power Transformer Connector all Models Check the Line Jumpers all ModelsClose the Unit Figure D-1. Line Voltage Conversion ComponentsIndex Index Index Europe Asia Pacific United States Latin AmericaCanada Australia/New Zealand JapanManual Updates
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