Lo +0.100 a, Lo +0.099 a, Hi +4.750 a | Agilent Technologies E3631A

Chapter 3 Calibration Procedures

General Calibration/Adjustment Procedure

Calibrate

Calibrate

Connect an appropriate shunt (see Table 3-1 on page 42) across the +6V supply's output terminals, and connect a digital voltmeter across the shunt resistor for the current calibration.

10Select the first current calibration point for the +6V supply.

i lo +0.100 a

The display shows the first current calibration point for the +6V supply.

11Read the DVM and change the first current value on the display to match the computed current (DVM reading ¸ by shunt resistance).

For example, if the computed value is 0.099 A, adjust the current to 0.099 A using the knob and arrow keys.

Notice that you should wait for the DVM reading to stabilize for accurate calibration.

i lo +0.099 a

12Pressing the "Calibrate" key saves the change and selects the second current calibration point for the +6V supply.

i hi +4.750 a

If the entered number is within an acceptable range, an "ENTERED" message appears for one second. The display now shows the second current calibration point for the +6V supply. If the entered number is not correct, an "INVALID DATA" message appears for one second and the display shows the first current calibration point again.

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Agilent Technologies E3631A manual Lo +0.100 a, Lo +0.099 a, Hi +4.750 a

Contents

Service Guide 3DUW1XPEHU $SULO Convenient bench-top features Flexible system features Front Panel at a Glance Before performing calibration Front-Panel Voltage and Current Settings T e Display Annunciators Rear Panel at a Glance This Book Page Contents Service Contents Calibration ProceduresTheory of Operation Backdating Schematics Contents ServiceReplaceable Parts Contents Specifications Specifications Performance Specifications Specifications Performance Specifications Specifications Performance Specifications Supplemental Characteristics Voltage Programming Speed Specifications Supplemental Characteristics Dimensions of Agilent E3631A Power Supply Specifications Supplemental Characteristics Quick Start Quick Start Connect the power cord and turn on the power supply To prepare the power supply for useQuick Start To prepare the power supply for use Enable the outputs 100 or 115 Vac, 2.5 AT fuse 230 Vac, 2 AT fuse Quick Start To check the rated voltages of the power supply To check the rated voltages of the power supplyTurn on the power supply Check the voltage function for the -25V supply Quick Start To check the rated currents of the power supply To check the rated currents of the power supplyAdjust the voltage limit value to 1.0 volt Check the current function for the +25V supply Check the current function for the -25V supply Set the display for the limit mode To use the power supply in constant voltage modeConnect a load to the desired output terminals Adjust the knob for the desired output voltage Return to the meter mode To use the power supply in constant current mode Quick Start To use the power supply in constant current mode Adjust the knob for the desired output current Verify that the power supply is in the constant current mode Quick Start To use the power supply in track mode To use the power supply in track modeVerify that ±25V supplies track each other properly To store and recall the instrument state Set up the power supply for the desired operating stateTurn on the storage mode Quick Start To store and recall the instrument state Restore the operating state Turn on the recall modeRecall the stored operating state To rack mount the power supply To rack mount the power supply Quick Start To rack mount the power supply Calibration Procedures Calibration Procedures Agilent Technologies Calibration Services Calibration Interval Automating Calibration Procedures Recommended Test Equipment U t i o n Calibration Procedures Test Considerations Test Considerations Self-Test Calibration Procedures Performance Verification TestsPerformance Verification Tests Performance Verification Tests Setup for Most Tests Measurement Techniques Current-Monitoring Resistor Constant Voltage CV Verifications Constant Voltage Test SetupCalibration Procedures Constant Voltage CV Verifications Voltage Programming and Readback Accuracy MEASVOLT? P6VP25VN25V CV Load Regulation CV Line Regulation Normal Mode Voltage Noise CV Ripple and Noise Common Mode Current Noise Load Transient Response Time Constant Current CC Verifications Constant Current Test SetupCalibration Procedures Constant Current CC Verifications Current Programming and Readback Accuracy MEASCURR? P6VP25VN25V CC Load Regulation CC Line Regulation Normal Mode Current Noise CC Ripple and Noise Performance Test Record for Agilent E3631A CV Performance Test Record CC Performance Test Record Calibration Procedures Calibration Security Code Calibration Security Code Turn on the front-panel calibration mode To Unsecure the Power Supply for CalibrationMove to the security code by pressing the Secure key Turn off the calibration mode Unsecured To Unsecure the Power Supply Without the Security Code Calibration Count Calibration Procedures Calibration CountCalibration Message General Calibration/Adjustment Procedure Cal mode Hi +5.7000v Lo +0.099 a Lo +0.100 aHi +4.750 a Cal setup Hi +4.999 a Calibration Procedures Aborting a Calibration in Progress Aborting a Calibration in Progress Calibration Procedures Calibration Record for Agilent E3631A Calibration Record for Agilent E3631A System Error Messages Error MessagesCalibration Procedures Error Messages Self-Test Error MessagesPage Calibration Procedures Calibration Program Calibration Program END if Output Calibration Procedures Calibration Program Theory of Operation Theory of Operation Block Diagram Overview Theory of Operation Block Diagram Overview Block Diagram AC Input and Bias Supplies Theory of Operation AC Input and Bias Supplies Floating Logic Theory of Operation Floating Logic Serck Xfpsk To-A Converter Theory of Operation To-A Converter To-D Converter Theory of Operation To-D Converter Power Mesh and Control Theory of Operation Power Mesh and Control Theory of Operation Power Mesh and Control Front Panel Earth-Referenced LogicTheory of Operation Earth-Referenced Logic Service Service Does the Power Supply Fail Self-Test? Operating ChecklistIs the Power Supply Inoperative? Service Operating Checklist Service Types of Service Available Types of Service AvailableStandard Repair Service worldwide Express Exchange U.S.A. only Service Repacking for Shipment Repacking for Shipment Service Electrostatic Discharge ESD Precautions Electrostatic Discharge ESD PrecautionsTo Replace the Power-Line Fuse Surface Mount Repair Service Troubleshooting Hints Troubleshooting HintsUnit Reports Errors 740 to Unit is Inoperative Bias Supplies Problems Service Self-Test Procedures Self-Test ProceduresPower-On Self-Test Complete Self-Test 100 101 Service Self-Test Procedures 102 Replaceable Parts To Order Replaceable Parts E3631-60002 Top PCB Assembly 106 107 108 109 110 E3631-60003 VFD Assembly CR1 CR2 E3631-60004 Bottom PCB Assembly E3631-60004 Bottom PCB Assembly 113 114 115 E3631-60005 Front Frame Assembly E3631-60005 Power SupplyAssembly Manufacturer’s List Manufacturer’s List 118 Backdating Lqfoxghglqwklvfkdswhu Schematics ‡ &RPSRQHQW/RFDWRUSDJH ‡ $&DQG$&6FKHPDWLFSDJHPage Page Page Page Page Page Page Page Page Page Warranty