Lecroy AP034-OM-E-TOC User Manual
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Table of Contents
Overview
Description .................................................................................................................................. 1-1
Applications ................................................................................................................................. 1-1
Conventions used in this Manual ................................................................................................ 1-2
Safety Information
Operator Safety ........................................................................................................................... 2-1
Operation
Connecting the Probe to the Test Instrument ............................................................................. 3-1
Connecting the Probe to the Test Circuit ......................................................................................3-1
Probe Input Loading .................................................................................................................... 3-4
Grounding the Probe ................................................................................................................... 3-4
Selecting the Proper Range ........................................................................................................ 3-6
Operation with LeCroy Oscilloscopes ......................................................................................... 3-7
AP034 Use with the ADPPS Power Supply...................................................................................3-8
Adding Offset ............................................................................................................................ 3-10
Autobalance .............................................................................................................................. 3-11
Designing Test Fixtures for the AP033 Probe ........................................................................... 3-12
Reference Information
Differential Mode and Common Mode ........................................................................................ 4-1
Differential Mode Range and Common Mode Range...................................................................4-1
Common Mode Rejection Ratio ................................................................................................... 4-2
Care and Maintenance
Cleaning ...................................................................................................................................... 5-1
Calibration Interval ...................................................................................................................... 5-1
Service Strategy .......................................................................................................................... 5-1
Troubleshooting .......................................................................................................................... 5-1
Trace Off Scale................................................................................................................5-1
AP034-OM-E Rev D ISSUED: January 2000 LLL
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Incorrect Frequency Response........................................................................................5-2
DC Errors.........................................................................................................................5-3
Poor Common Mode Rejection.......................................................................................5-3
Returning a Defective Probe ....................................................................................................... 5-4
Replacement Parts ...................................................................................................................... 5-5
Matching Procedure for ÷10 Plug-On External Attenuator .......................................................... 5-8
Equipment Required .....................................................................................................................5-8
Procedure......................................................................................................................................5-9
Performance Verification
Test Equipment Required .............................................................................................................6-1
Preliminary Procedure...................................................................................................................6-3
Procedure......................................................................................................................................6-3
Check Gain Accuracy.......................................................................................................6-4
Check High Frequency CMRR.........................................................................................6-5
Check Low Frequency CMRR..........................................................................................6-8
Performance Verification Test Record........................................................................................6-11
Adjustment Procedure
Introduction .................................................................................................................................. 7-1
Test Equipment Required .............................................................................................................7-2
Preliminary Procedure...................................................................................................................7-4
Procedure......................................................................................................................................7-7
Adjust Coarse DC Balance (R226) ..................................................................................7-7
Adjust Fine DC Balance (R304).......................................................................................7-8
Adjust Low Frequency CMRR (R7)..................................................................................7-9
Adjust Offset (R330) ......................................................................................................7-11
Adjust Gain (R322C)......................................................................................................7-13
Adjust Final Attenuator Compensation (C17) ................................................................7-14
Adjust Final Attenuator CMRR (C18A)...........................................................................7-15
Assemble Probe and Amplifier.......................................................................................7-16
Attenuator Matching and Final Check............................................................................7-17
LY ISSUED: January 2000 AP034-OM-E Rev D
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