Agilent Technologies E4350B, E4351B - page 107

Verification and Calibration 107

Current Programming and Readback Accuracy

This test verifies that the current programming and readback are within specification. Connect the appropriate current

monitoring resistor (see Table B-1) as shown in Figure B-1(2). The accuracy of the resistor must be as specified in the table.

Table B-3. Current Programming and Readback Accuracy Test

Action Normal Result

1 Turn off the Agilent SAS and connect the current monitoring

resistor as shown in Figure B-1(2). Be certain to use wire of

sufficient size to carry the maximum rated current of the

supply (see Table 4-1 in Chapter 4).

2 Connect a DVM across the resistor.

3 Turn on the Agilent SAS and program the output for 5 volts

and 0 amperes.

4Disable the output ( )

5Enable the output (or send OUTP ut ON).

6 Observe the voltage reading of the voltmeter. Divide this by

the resistance of the current monitor resistor. Record the result

as the Low Current value (IDVM) in Table B-4.

Value within Low Current limits (see Table B-4 for

either Agilent E4350B or Agilent E4351B).

7 Record the front panel display readback (IFP) in Table B-4. Value within specified readback limits (see Table

B-4 for either Agilent E4350B or Agilent E4351B).

8 Program output current to full scale (either 8 A or 4A).

9 Repeat Steps 6 and 7. Both current readings within specified High Current

and readback limits (see Table B-4 for either

Agilent E4350B or Agilent E4351B).

10 Disable the output ( ).

11 Remove the short from across the load.

Table B-4. Operation Verification Test Parameters

Test Description Minimum Spec Results * Maximum

Spec Measurement

Uncertainty

MODEL Agilent E4350B Voltage Programming and Readback

Low Voltage (0 V) -10 mV VDVM = ______ mV +10 mV 2.0 µV

Front Panel Display Readback VDVM -42 mV VFP = ______ mV VDVM +42 mV 2.0 µV

High Voltage ( 60 V) 59.945 V VDVM = ______ V 60.055 V 845 µV

Front Panel Display Readback VDVM -90 mV VFP = ______ mV VDVM +90 mV 845 µV

Current Programming and Readback

Low Current (0 A) -20 mA IDVM = ______ mA +20 mA 16 µA

Front Panel Display Readback IDVM -28 mA IFP = ______ mA IDVM +28 mA 16 µA

High Current (8 A) 7.964 A IDVM = ______ A 8.036 A 2.5 mA

Front Panel Display Readback IDVM -44 mA IFP = ______ mA IDVM +44 mA 2.5 mA

Contents

Main CERTIFICATION WARRANTY LIMITATION OF WARRANTY EXCLUSIVE REMEDIES ASSISTANCE SAFETY SUMMARY SAFETY SUMMARY (continued) SAFETY SYMBOL DEFINITIONS DECLARATION OF CONFORMITY Table Of Contents Page Page Page Page Page Page General Information Whats In This Guide? Safety Considerations Options and Accessories Operator Replaceable Parts Description Key Features Output Characteristic Fixed Mode Simulator Mode Page Table Mode Page Installation Inspection Location and Temperature AC Line Connection AC Line Voltage Conversion Power Products plug&play VXI Instrument Drivers Downloading and Installing the Driver Accessing Online Help Turn-On Checkout Preliminary Checkout Power-On Checkout Note Using The Keypad Output Checkout Important Page Page Checking The Save And Recall Functions Determining The GPIB Address In Case Of Trouble Note User Connections Rear Panel Connections Note Load Connections Note Sense Connections Note Page Over Current Protection Considerations Note B A Operating Configurations + - 2 1 B A 3 Page Page Page Controller Connections Note Page Front Panel Operation Note Key Functions 3 15 4 Page Page Programming the Output Important Note Programming Overvoltage Protection Programming Overcurrent Protection Note CV Mode VS. CC Mode Unregulated Operation Saving and Recalling Operating States Note Turn-On Conditions Setting The GPIB Address Note Remote Programming GPIB Capabilities of the Agilent SAS Introduction To SCPI lmportant Note Types of SCPI Commands Types of SCPI Messages Page SCPI Data Formats Examples Note Note: Note System Considerations Page Page Page Page Language Dictionary Description Of Common Commands Page Page Page Page Page Page Description Of Subsystem Commands Page Calibration Commands Display S ubsyste m Note Measure Subsystem Memory Subsystem Output Subsystem Page Page Page Page Page Status Subsystem Page Page Note System Commands Trigger Subsystem Page Page Status Reporting Agilent SAS Status Structure Operation Status Group Page Questionable Status Group Standard Event Status Group Service Request Enable Register Output Queue Initial Conditions At Power On Examples Note SCPI Command Completion Note DFI (Discrete Fault Indicator) RI (Remote Inhibit) Using Device Clear Page A Specifications and Application Information Specifications and Supplemental Characteristics Page Page Page Output Impedance Graphs Page Page Peak Power Tracker Application ()() Series Switching Regulation Shunt Switching Regulation B Verification and Calibration Note Test Equipment Required Verification Note Page Calibration Important Front Panel Calibration Page Calibration Over The GPIB Calibration Language Dictionary Page 114 Verification and Calibration Agilent BASIC Calibration Program Figure A-2. Agilent BASIC Calibration Program Verification and Calibration 115 Figure A-2. Agilent BASIC Calibration Program (continued) Page C Digital Port Functions Digital Connector Note Fault/Inhibit Operation Page Page Page D Error Messages Hardware Error Messages Calibration Error Messages System Error Messages Page Index A B C D F G H I J L M N O P S T U V W Agilent Sales and Support Offices