Tektronix AM 503B Series Instructions Manual
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Tektronix AM 503B Series Instructions Manual

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Instructions
AM 503B, AM 5030 & A6300 Series
067-0271-00 Verification and Adjustment Kit
070-9352-01
This document applies to firmware version 3.0
and above.
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.

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  • Page 1 Instructions AM 503B, AM 5030 & A6300 Series 067-0271-00 Verification and Adjustment Kit 070-9352-01 This document applies to firmware version 3.0 and above. Warning The servicing instructions are for use by qualified personnel only. To avoid personal injury, do not perform any servicing unless you are qualified to do so.
  • Page 2 Copyright Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved. Printed in the U.S.A. Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000...

  • Page 3: Table Of Contents

    Table of Contents General Safety Summary ........Service Safety Summary .
  • Page 4 Table of Contents Adjustment Procedures for Current Probes ..... A6312, A6302 and A6302XL Adjustment ..... . . Required Test Equipment .

  • Page 5: General Safety Summary

    General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. Only qualified personnel should perform service procedures. While using this product, you may need to access other parts of the system. Read the General Safety Summary in other system manuals for warnings and cautions related to operating the system.
  • Page 6 General Safety Summary Product Damage Precautions Use Proper Power Source Do not operate this product from a power source that applies more than the voltage specified. Use Proper Voltage Before applying power, ensure that the line selector is in the proper position for Setting the power source being used.
  • Page 7 General Safety Summary Symbols on the Product The following symbols may appear on the product: DANGER Protective Ground ATTENTION Double High Voltage (Earth) Terminal Refer to Manual Insulated Certifications and Compliances CSA Certified Power CSA Certification includes the products and power cords appropriate for use in Cords the North America power network.
  • Page 8 General Safety Summary AM 503B, AM 5030, and A6300 Series Verification and Adjustment...

  • Page 9: Service Safety Summary

    Service Safety Summary Only qualified personnel should perform service procedures. Read this Service Safety Summary and the General Safety Summary before performing any service procedures. Do Not Service Alone Do not perform internal service or adjustments of this product unless another person capable of rendering first aid and resuscitation is present.
  • Page 10 Service Safety Summary viii AM 503B, AM 5030, and A6300 Series Verification and Adjustment...

  • Page 11: Kit Description

    None of the components contained in this kit require calibration. Kit Parts List This kit includes the parts listed in Table 1. Table 1: Kit Parts List Tektronix Part Number Quantity Description 015-0598-00 Voltage adapter...
  • Page 12 Kit Description specifications listed. You may need to modify the test procedures if you do not use the recommended equipment. Table 2: Required Test Equipment Recommended Equipment Item Description Oscilloscope 500 MHz bandwidth TDS 520B Leveled Sine Wave 3 MHz to 100 MHz Wavetek 9100 with Generator Option 250 or SG 503...

  • Page 13: Am 503B And Am 5030 Performance Verification

    AM 503B and AM 5030 Performance Verification Refer to the list of equipment required in Table 2 on page 2. Set up the AM 503B or AM 5030 amplifiers as follows: 1. Plug the AM 503B or AM 5030 amplifier into the TM 5000 mainframe. 2.

  • Page 14: Dc Gain Accuracy

    AM 503B and AM 5030 Performance Verification DC Gain Accuracy Use the following procedure to verify the DC gain accuracy of the amplifier. Test Equipment Setup Refer to Figure 1 and set up the test equipment as follows: 1. Connect the output of the amplifier to the DMM. a.
  • Page 15 AM 503B and AM 5030 Performance Verification 3. Make or verify the equipment settings in Table 5: Table 5: Equipment Settings Digital Multimeter Measurement Type DC volts Range Autoranging Current Source Output AM 503B and AM 5030 Amplifier Coupling BW Limit On (20 MHz) Current/division 10 mA/division...
  • Page 16 AM 503B and AM 5030 Performance Verification Table 6: DC Gain Accuracy Calibration Test for the AM503X AM 503B and AM 5030 Current/Division Current Source Output Test Current (I 1 m A 100 A 10 mA 2 m A 200 A 20 mA 5 m A 500 A...
  • Page 17 AM 503B and AM 5030 Performance Verification h. Calculate the %Error between the measured current (I ) and the test current (I ) %Error as follows: %Error For example, using a test current I of 100 mA and a measured current I of 104 mA, the %Error would be: 104 –...
  • Page 18 AM 503B and AM 5030 Performance Verification Table 7: Work Sheet for DC Gain Accuracy Calibration AM 503B and Existing AM 5030 Test Current/ Current/Voltage %Error Constant Constant Current Division Source Output (Note A) (Note B) Name (Note C) (Note D) 1 mA 100 A 10 mA...

  • Page 19: Dc Balance

    AM 503B and AM 5030 Performance Verification 5. Verify that the measured DC gain accuracy is within 1.5% at all settings. NOTE. If the % Error on any of the settings is greater than 1.5%, you must perform the Cal Constant loading sequence. Refer to the adjustment procedure that begins on page 19.

  • Page 20: Rms Noise

    AM 503B and AM 5030 Performance Verification Table 8: Equipment Settings for DC Balance Digital Multimeter Measurement Type DC volts Range Autoranging AM 503B and AM 5030 Amplifier Coupling BW Limit On (20 MHz) Current/division 1 mA/division 5. Press the PROBE DEGAUSS AUTOBALANCE button. Wait for the degauss/autobalance routine to complete before proceeding.
  • Page 21 AM 503B and AM 5030 Performance Verification 1. Using a 50 BNC cable, connect the Amplifier OUTPUT to a 50 oscilloscope input. If the input impedance of your oscilloscope is 1 M , connect a 50 feedthrough termination at the oscilloscope input. Do not connect the termination at the Amplifier output.

  • Page 22: Bandwidth

    AM 503B and AM 5030 Performance Verification Bandwidth This procedure tests the bandwidth of the AM 503B and AM 5030. In this test you measure a signal at a relatively low frequency and again at the upper test frequency. The two measurements are compared to verify that the signal amplitude does not fall below a certain limit.
  • Page 23 AM 503B and AM 5030 Performance Verification Table 10: Equipment Settings for Bandwidth Check (Cont.) Oscilloscope Number of waveforms to average Measurement type Peak-to-Peak Leveled Sine Wave Generator Frequency 3 MHz Amplitude 3.0 V AM 503B and AM 5030 Coupling BW Limit Off (full bandwidth) Current/division...

  • Page 24: Degauss

    AM 503B and AM 5030 Performance Verification Degauss This is only a functional test of the degauss operation. Refer to Figure 5. 1. Connect a current probe to the output of the AM 503B or AM 5030. 2. Press the Amplifier PROBE DEGAUSS AUTOBALANCE button. Wait for the indicator light to turn off.

  • Page 25: Gpib Installation

    GPIB Installation WARNING. Instrument disassembly should only be performed by qualified service personnel. This section details how to assemble the GPIB test fixture and install it in the AM 503B Current Probe Amplifier prior to performing the adjustment proce- dure. The AM 503B amplifier requires the GPIB test fixture in order to set the internal calibration constants.

  • Page 26: Remove Side Covers

    GPIB Installation Screws (2) Screw Ribbon Cable Red Edge GPIB Board Nut Block Spacers (2) Figure 6: Assembling the GPIB Test Fixture Remove Side Covers Refer to Figure 7 and unlatch the securing screws with a flat-blade screwdriver. Remove both covers from the AM 503B and set them to one side. Amplifier Securing Screw Figure 7: Removing the AM 503B Side Covers...

  • Page 27: Install Gpib Test Fixture

    GPIB Installation Install GPIB Test Fixture Refer to Figure 8 and install the GPIB test fixture on the AM 503B main board. 1. Install the tabbed end of the ribbon cable (174-2314-00) onto the main board keeping the RED edge towards rail. GPIB Board Screw Screws (2)
  • Page 28 GPIB Installation CAUTION. To avoid damaging the circuits, make sure the connectors are properly aligned with the pins. Check to be sure all pins are connected. 2. Dress the excess ribbon cable back under the GPIB board and insert the end of the board with the gold contacts into the slot of the rear frame.

  • Page 29: Am 503B And Am 5030 Adjustments

    AM 503B and AM 5030 Adjustments The adjustment procedure consists of a series of steps to determine and set the proper calibration constants of the AM 503B and AM 5030 Current Probe Amplifiers. NOTE. To set the internal calibration constants of the AM 503B amplifier, you must install the GPIB test fixture.

  • Page 30: Calculate And Load New Calibration Constants

    AM503B and AM5030 Adjustments Calculate and Load New Calibration Constants Use the following procedure to calculate and load new calibration (cal) constants for Rin1X, Rin10X and Rin100X. NOTE. Perform this procedure only if the amplifier fails the DC Gain Accuracy test on page 4.

  • Page 31: Gpib Removal (Am 503B Only)

    AM503B and AM5030 Adjustments The parameter, , is the New Cal Constant for Rin 10X from Table 7. c. Over the GPIB interface send the following command to the amplifier: The parameter, is the New Cal Constant for Rin 100X from Table 7. d.
  • Page 32 AM503B and AM5030 Adjustments AM 503B, AM 5030, and A6300 Series Verification and Adjustment...

  • Page 33: Performance Verification Setup For Current Probes

    Performance Verification Setup for Current Probes The Performance Verification tests allow you to demonstrate that the A6300 Series Current Probe meets its specified levels of performance. The recom- mended calibration interval is one year. An AM 503B or AM 5030 Current Probe Amplifier that meets the tolerances of the AM 503B and AM 5030 Performance Verification Procedure (page 3) can be used as a standard for calibrating the current probes.

  • Page 34: Warranted Specifications

    Performance Verification Setup for Current Probes NOTE. Before performing any verification procedure, properly degauss the probe. Remove the probe from any current-carrying conductor, lock the probe, and press the Amplifier PROBE DEGAUSS AUTOBALANCE button. The degauss/autobalance routine is complete when the indicator light turns off. The Amplifier front panel will display an error code 266 during the degauss/ autobalance routine if the Amplifier is not properly terminated into 50 .

  • Page 35: A6312 Performance Verification

    A6312 Performance Verification The test procedures in this section verify proper performance of the A6312 current probe. Read page 23 before starting these procedures. Also, read each procedure through completely before starting to ensure proper completion. Required Test Equipment To perform the acceptance tests in this section, you will need the test equipment listed in Table 12.

  • Page 36: Bandwidth

    A6312 Performance Verification Bandwidth This procedure tests the bandwidth of the A6312 Current Probe. In this test you measure a signal at a relatively low frequency and again at the rated bandwidth of the probe. The two measurements are compared to verify that the signal amplitude does not fall below –3 dB at the probe bandwidth.
  • Page 37 A6312 Performance Verification Table 13: Equipment Settings for Bandwidth (Cont.) Oscilloscope Trigger type Edge Trigger mode Auto Trigger position Acquisition mode Average Number of waveforms to average Measurement type Peak-to-Peak Leveled Sine Wave Generator Frequency 3 MHz Amplitude AM 503B and AM 5030 Coupling BW Limit Off (full bandwidth)

  • Page 38: Rise Time

    A6312 Performance Verification 8. The probe meets the bandwidth specification if the ratio of the signal amplitude at the warranted bandwidth is at least 70.7% of the signal amplitude at 3 MHz. Using the following calculation, verify probe band- width: 0.707 NOTE.
  • Page 39 A6312 Performance Verification 3. Connect the current loop calibration fixture to the calibration generator 50 fast rise output. NOTE. If your oscilloscope cannot trigger on the pulse, use another BNC cable to connect the trigger output of the pulse generator to the trigger input of the oscilloscope.

  • Page 40: Dc Gain Accuracy

    A6312 Performance Verification 3. Clamp the current probe around the calibration fixture. Verify that the arrow-shaped indicator on the probe points away from the pulse source. 4. Using the measurement capability of the oscilloscope, measure the rise time of the displayed pulse from 10% to 90% amplitude. 5.
  • Page 41 A6312 Performance Verification Amplifier in TM Series Power Module Current Source Output – + – 20 Turns BNC to Dual Banana Adapter Termination Probe Coaxial Cable Current Flow Figure 11: DC Gain Accuracy Test Setup for A6312 Equipment Settings Make or verify the equipment settings in Table 15: Table 15: Equipment Settings for DC Gain Accuracy Digital Multimeter Measurement Type...
  • Page 42 A6312 Performance Verification 4. For each of the Amplifier current/division settings in Table 16, perform the following steps: a. Set the Amplifier to the desired current/division setting from Table 16. b. Set the current source to the correct positive test current using Table 16. c.
  • Page 43 A6312 Performance Verification For example, you might have obtained values of 50 mV for M 48 mV for M . If you are using an Amplifier setting of 10 mA/division, you can compute I –3 –3 (50.0x10 ) – (–48x10 –3 (10x10 98 mA...
  • Page 44 A6312 Performance Verification Table 17: DC Gain Accuracy Test Worksheet for A6312 Turns of Current AM 503B and Current Source Test Current %Error Loop Passing AM 5030 Output (Note A) (Note B) Through Probe Current/Division 1 mA 250 A 10 mA 2 mA 500 A 20 mA...

  • Page 45: A6302 And A6302Xl Performance Verification

    A6302 and A6302XL Performance Verification The test procedures in this section verify proper performance of the A6302 and A6302XL current probes. Read page 23 before starting these procedures. Also, read each procedure through completely before starting to ensure proper completion. Required Test Equipment To perform the acceptance tests in this section, you will need the test equipment listed in Table 18.

  • Page 46: Bandwidth

    A6302 and A6302XL Performance Verification Bandwidth This procedure tests the bandwidth of the A6302 and A6302XL Current Probes. In this test you measure a signal at a relatively low frequency and again at the rated bandwidth of the probe. The two measurements are compared to verify that the signal amplitude does not fall below –3 dB at the probe bandwidth.
  • Page 47 A6302 and A6302XL Performance Verification Table 19: Equipment Settings for Bandwidth (Cont.) Oscilloscope Trigger type Edge Trigger mode Auto Trigger position Acquisition mode Average Number of waveforms to average Measurement type Peak-to-Peak Leveled Sine Wave Generator Frequency 3 MHz Amplitude AM 503B and AM 5030 Coupling BW Limit...

  • Page 48: Rise Time

    A6302 and A6302XL Performance Verification NOTE. The impedance of the calibration fixture used in this test changes slightly between 3 MHz and 50 MHz. Typically the impedance changes from 50 3 MHz to 53 at 50 MHz. Thus you can substitute the following equation to make this test more accurate: (1.06) 0.707...
  • Page 49 A6302 and A6302XL Performance Verification NOTE. If your oscilloscope cannot trigger on the pulse, use another BNC cable to connect the trigger output of the pulse generator to the trigger input of the oscilloscope. Configure the oscilloscope for an external trigger. Equipment Settings Make or verify the equipment settings in Table 20: Table 20: Equipment Settings for Rise Time...

  • Page 50: Dc Gain Accuracy

    A6302 and A6302XL Performance Verification 5. Verify that the rise time is less than the warranted specification. Refer to Table 11 on page 24. DC Gain Accuracy This procedure tests the DC gain accuracy of the A6302 and A6302XL Current Probes.
  • Page 51 A6302 and A6302XL Performance Verification Amplifier in TM Series Power Module Current Source Output – + – 20 Turns BNC to Dual Banana Adapter Termination Probe Coaxial Current Flow Cable Figure 14: DC Gain Accuracy Test Setup for A6302/A6302XL Equipment Settings Make or verify the equipment settings in Table 21: Table 21: Equipment Settings for DC Gain Accuracy Digital Multimeter...
  • Page 52 A6302 and A6302XL Performance Verification 4. For each of the Amplifier current/division settings in Table 22 on page 42, perform the following steps: a. Set the Amplifier to the desired current/division setting from Table 22. b. Set the current source to the correct positive test current using Table 22. c.
  • Page 53 A6302 and A6302XL Performance Verification For example, you might have obtained values of 50 mV for M 48 mV for M . If you are using an Amplifier setting of 10 mA/division, you can compute I –3 –3 (50.0x10 ) – (–48x10 –3 (10x10 98 mA...
  • Page 54 A6302 and A6302XL Performance Verification Table 23: DC Gain Accuracy Test Worksheet for A6302/A6302XL Turns of Current AM 503B and Current Source Test Current %Error Loop Passing AM 5030 Output (Note A) (Note B) Through Probe Current/Division 1 mA 250 A 10 mA 2 mA 500 A...

  • Page 55: A6303 And A6303Xl Performance Verification

    A6303 and A6303XL Performance Verification The test procedures in this section check for proper performance of the A6303 and A6303XL current probes. Read page 23 before starting these procedures. Also, read each procedure through completely before starting to ensure proper completion. Required Test Equipment To perform the acceptance tests in this section, you will need the test equipment listed in Table 24.

  • Page 56: Bandwidth

    A6303 and A6303XL Performance Verification Bandwidth This procedure tests the bandwidth of the A6303 and A6303XL Current Probes. In this test you measure a signal at a relatively low frequency and again at the rated bandwidth of the probe. The two measurements are compared to check that the signal amplitude does not fall below –3 dB at the probe bandwidth.
  • Page 57 A6303 and A6303XL Performance Verification Table 25: Equipment Settings for Bandwidth (Cont.) Oscilloscope Trigger type Edge Trigger mode Auto Trigger position Acquisition mode Average Number of waveforms to average Measurement type Peak-to-Peak Leveled Sine Wave Generator Frequency 3 MHz Amplitude AM 503B and AM 5030 Coupling BW Limit...

  • Page 58: Rise Time

    A6303 and A6303XL Performance Verification 8. The probe meets the bandwidth specification if the ratio of the signal amplitude at the warranted bandwidth is at least 0.707 of the signal amplitude at 3 MHz. Use the following formula to check probe bandwidth: 0.707 Rise Time This procedure measures the rise time of the A6303 and A6303XL.
  • Page 59 A6303 and A6303XL Performance Verification Table 26: Equipment Settings for Rise Time Oscilloscope Vertical input impedance Vertical gain 5 mV/division Time base 10 ns/division Record length Coupling Offset 0 V (mid-scale) Trigger type Edge Trigger mode Auto Trigger position Acquisition mode Average Number of waveforms to average Measurement type...

  • Page 60: Dc Gain Accuracy

    A6303 and A6303XL Performance Verification DC Gain Accuracy WARNING. This test produces intense magnetic fields that may cause malfunc- tions in a normally operating heart pacemaker or damage sensitive equipment. Personnel fitted with pacemakers should not perform this test, and should stay at least 10 feet from the current loop while the test is being conducted.
  • Page 61 A6303 and A6303XL Performance Verification Amplifier in TM Series Power Module Current Source Output – + – 50 Turns BNC to Dual Banana Adapter Termination Probe Coaxial Current Flow Cable Figure 17: DC Gain Accuracy Test Setup for A6303/A6303XL WARNING. This test produces intense magnetic fields that may cause malfunc- tions in a normally operating heart pacemaker or damage sensitive equipment.
  • Page 62 A6303 and A6303XL Performance Verification Table 28: DC Gain Accuracy Test for A6303 /A6303XL Turns of Current AM 503B and Current Source Test Current Loop Passing AM 5030 Output Through Probe Current/Division 5 mA 500 A 50 mA 10 mA 1 mA 100 mA 20 mA...
  • Page 63 A6303 and A6303XL Performance Verification Table 29: DC Gain Accuracy Test Work Sheet for A6303/A6303XL Turns of Current AM 503B and Current Source Test Current %Error Loop Passing AM 5030 Output (Note A) (Note B) Through Probe Current/Division 5 mA 500 A 50 mA 10 mA...
  • Page 64 A6303 and A6303XL Performance Verification AM 503B, AM 5030, and A6300 Series Verification and Adjustment...

  • Page 65: A6304Xl Performance Verification

    Table 30: Required Test Equipment Recommended Item Description Equipment Oscilloscope 20 MHz bandwidth Tektronix TDS 520B Digital Multimeter 0.25%, 3 digit resolution DM2510/G or at 50 mV Fluke 850x/884x Current Source 0.3% accuracy, 0 to 2 A...

  • Page 66: Rise Time

    A6304XL Performance Verification Rise Time This procedure measures the rise time of the A6304XL. In this test you directly measure the rise time of a step input. Refer to Figure 18 when making equipment connections. Amplifier in TM Calibration Series Power Generator Test Oscilloscope Module...
  • Page 67 A6304XL Performance Verification Equipment Settings Make or check the equipment settings in Table 31: Table 31: Equipment Settings for Rise Time Oscilloscope Vertical input impedance Vertical gain 10 mV/division Time base 50 ns/division Record length Coupling Offset 0 V (mid-scale) Trigger type Edge Trigger mode...

  • Page 68: Bandwidth

    A6304XL Performance Verification Bandwidth The bandwidth of the probe is derived as a function of its rise time. The rise time ) is measured in nanoseconds between the 10% and 90% points of the leading edge of the pulse. (Refer to the procedure on page 56.) To calculate the probe bandwidth, use the following formula: 0.35 Bandwidth...
  • Page 69 A6304XL Performance Verification Amplifier in TM Series Power Module Current Source Output – + – 250 Turns BNC to Dual Sense Banana Adapter Termination Probe Coaxial Current Flow Cable Figure 19: DC Gain Accuracy Test Setup for the A6304XL Equipment Settings Make or check the equipment settings in Table 32.
  • Page 70 A6304XL Performance Verification 3. Clamp the current probe around the current loop. Check that the arrow- shaped indicator on the probe points away from the current source. (See Figure 19 on page 59.) 4. For each of the Amplifier current/division settings in Table 33 on page 61, perform the following steps:5 a.
  • Page 71 A6304XL Performance Verification Table 33: DC Gain Accuracy Test for the A6304XL Turns of Current AM 503B and Current Source Test Current Loop Passing AM 5030 Output Through Probe Current/Division 500 mA 10 mA 20 mA 10 A 40 mA 20 A 100 mA 50 A...
  • Page 72 A6304XL Performance Verification Table 34: DC Gain Accuracy Test Work Sheet for the A6304XL Turns of Current AM 503B and Current Source Test Current %Error Loop Passing AM 5030 Output (Note A) (Note B) Through Probe Current/Division 500 mA 10 mA 20 mA 10 A 40 mA...

  • Page 73: Adjustment Procedures For Current Probes

    Adjustment Procedures for Current Probes Before performing the adjustment procedures, perform the following steps: 1. Install all plug-in units into the power modules. 2. Attach the current probe to be adjusted. 3. Turn the power on and allow the entire system to warm up for a minimum of 20 minutes.
  • Page 74 Adjustment Procedures for Current Probes AM 503B, AM 5030, and A6300 Series Verification and Adjustment...

  • Page 75: A6312, A6302 And A6302Xl Adjustment

    A6312, A6302 and A6302XL Adjustment The following adjustment procedure describes how to adjust the DC offset of the A6312, A6302 and A6302XL. Tolerances that are specified in these procedures apply to the current probes and do not include test equipment error. Required Test Equipment To perform the adjustment procedure in this section, you will need the test equipment listed in Table 35.
  • Page 76 A6312, A6302 and A6302XL Adjustment 3. Do not clamp the current probe around any conductor, but make sure the jaws are locked shut. Equipment Settings Make or verify the equipment settings in Table 36: Table 36: Settings for DC Offset Adjustment AM 503B and AM 5030 Coupling BW Limit...
  • Page 77 A6312, A6302 and A6302XL Adjustment 6. Press and hold the button, and while holding it, press the 20 MHz BW LIMIT AUTOBALANCE button. This sets the front panel PROBE DEGAUSS display to –00 and puts the AM 503B and AM 5030 into an internal test mode.
  • Page 78 A6312, A6302 and A6302XL Adjustment AM 503B, AM 5030, and A6300 Series Verification and Adjustment...

  • Page 79: A6303 And A6303Xl Adjustments

    A6303 and A6303XL Adjustments Each of the following adjustment procedures describes how to adjust specific performance characteristics of the A6303 and the A6303XL. Tolerances that are specified in these procedures apply to the current probes and do not include test equipment error.

  • Page 80: A6303 And A6303Xl Dc Offset Adjustment

    A6303 and A6303XL Adjustments A6303 and A6303XL DC Offset Adjustment This procedure describes how to adjust the DC offset of the A6303 and A6303XL using the DC Offset adjustment. Refer to Figure 21 when performing this procedure. DC Offset A6303 or A6303XL Current Probe Figure 21: A6303 and A6303XL Adjustment Locations Equipment Connections...
  • Page 81 A6303 and A6303XL Adjustments Equipment Settings Make or verify the equipment settings in Table 39: Table 39: Settings for DC Offset Adjustment AM 503B and AM 5030 Coupling BW Limit Off (full bandwidth) Current/division 10 mA/division Oscilloscope Vertical Gain 10 mV/division Time Base 1 ms/division, Auto triggered...

  • Page 82: A6303 And A6303Xl Transient Response And Gain Adjustment

    A6303 and A6303XL Adjustments 7. Press and hold the button, and while holding it, press the 20 MHz BW LIMIT AUTOBALANCE button. This sets the front panel PROBE DEGAUSS display to –00 and puts the AM 503B and AM 5030 into an internal test mode.
  • Page 83 A6303 and A6303XL Adjustments Calibration Amplifier in TM Generator Series Power Test Oscilloscope Module High Amplitude Output Input Current Loop A6303/A6303XL Probe Figure 22: A6303 and A6303XL Adjustment Setup Equipment Settings Make or verify the equipment settings in Table 41: Table 41: Settings for Transient Response and Gain Adjustments AM 503B and AM 5030 Coupling...
  • Page 84 A6303 and A6303XL Adjustments 4. Press the Amplifier PROBE DEGAUSS AUTOBALANCE button. Wait for the degauss/autobalance routine to complete before proceeding. The routine is complete when the indicator light turns off. NOTE. The Amplifier front panel will display error code 266 after the degauss/ autobalance routine completes if the Amplifier is not properly terminated into 50 .

  • Page 85: A6304Xl Adjustments

    To perform the adjustment procedures in this section, you will need the test equipment listed in Table 42. The test equipment must meet or exceed the specifications listed. The test procedures may need to be changed if Tektronix equipment is not used.

  • Page 86: A6304Xl Dc Offset Adjustment

    A6304XL Adjustments A6304XL DC Offset Adjustment This procedure details how to adjust the A6304XL offset. Equipment Connections 1. Connect the Amplifier OUTPUT to a 50 oscilloscope input using a 50 BNC cable. If the input impedance of your oscilloscope is 1 M , connect a feedthrough termination to the oscilloscope input.
  • Page 87 A6304XL Adjustments 5. If no error codes are displayed after the degauss/autobalance routine completes, no offset adjustment is necessary. Go to the DC Gain Adjustment on page 78. 6. If either of the error codes in Table 44 are displayed, continue with this procedure.

  • Page 88: Dc Gain Adjustment

    A6304XL Adjustments 11. Adjust the DC Offset control so that the oscilloscope trace is on the center graticule line (zero offset), 1 division. 12. Press and release the 20MHz BW LIMIT button, then press and release the COUPLING button. This exits the AM 503B and AM 5030 test mode. DC Gain Adjustment This procedure adjusts the DC gain accuracy of the A6304XL probe.
  • Page 89 A6304XL Adjustments Amplifier in TM Series Power Module Current Source Output – + – 250 Turns BNC to Dual Banana Adapter Termination Probe Coaxial Current Flow Cable Figure 24: DC Gain Accuracy Adjustment Setup Procedure 1. Do not clamp the current probe around any conductor, but make sure the jaws are locked shut.

  • Page 90: A6304Xl Transient Response Adjustment

    A6304XL Adjustments A6304XL Transient Response Adjustment This procedure describes how to optimize the transient response of the A6304XL using the 10 s and 1 s adjustments. Refer to figures 23 and 25 when perform- ing this procedure. Equipment Connections 1. Connect the Amplifier output to a 50 oscilloscope input using a 50 BNC cable.
  • Page 91 A6304XL Adjustments Table 46: Equipment Settings for Transient Response (Cont.) Calibration Generator Pulse Width 250 s Pulse Repetition Frequency 20 Hz Pulse Amplitude 5 A peak AM 503B and AM 5030 Coupling BW Limit Current/division 1 A/division Procedure 1. Move the oscilloscope trace to one graticule line from the bottom of the screen.
  • Page 92 A6304XL Adjustments 11. Adjust the 1 s control to flatten the front end of the pulse. NOTE. The 10 s and 1 s adjustments on the A6304XL interact. Adjusting them can be a repetitive process. You may need to balance between short and long term response in order to meet both specifications at once.

This manual is also suitable for:

Am 5030 seriesA6300 series

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