Tektronix AM5030, A6312, A6303, A6303XL User manual

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.

that in all previously published material. Specifications and price change privileges reserved. Printed in the U.S.A. T ektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000 TEKTRONIX and TEK are registered trademarks of T ektronix, Inc.

General Safety Summary iii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service Safety Summary vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Kit Description 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Kit Parts List 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Equipment Required 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

AM 503B and AM 5030 Performance Verification 3. . . . . . . . . . . . . . .

T est Procedure Conditions 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC Gain Accuracy 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC Balance 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RMS Noise 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bandwidth 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Degauss 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

GPIB Installation 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Assemble GPIB Test Fixture 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Remove Side Covers 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Install GPIB T est Fixture 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

AM 503B and AM 5030 Adjustments 19. . . . . . . . . . . . . . . . . . . . . . . . . .

Amplifier Setup 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Calculate and Load New Calibration Constants 20. . . . . . . . . . . . . . . . . . . . . . . . .

GPIB Removal (AM 503B Only) 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Performance Verification Setup for Current Probes 23. . . . . . . . . . . . . .

T est Procedure Conditions 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Equipment Preparation 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

W arranted Specifications 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A6312 Performance Verification 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Required Test Equipment 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bandwidth 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Rise Time 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC Gain Accuracy 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A6302 and A6302XL Performance Verification 35. . . . . . . . . . . . . . . . . .

Required Test Equipment 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bandwidth 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Rise Time 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC Gain Accuracy 40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A6303 and A6303XL Performance Verification 45. . . . . . . . . . . . . . . . . .

Required Test Equipment 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bandwidth 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Rise Time 48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC Gain Accuracy 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A6304XL Performance Verification 55. . . . . . . . . . . . . . . . . . . . . . . . . . .

Required Test Equipment 55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Rise Time 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bandwidth 58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC Gain Accuracy 58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

Table of Contents

Adjustment Procedures for Current Probes 63. . . . . . . . . . . . . . . . . . . . .

A6312, A6302 and A6302XL Adjustment 65. . . . . . . . . . . . . . . . . . . . . . .

Required Test Equipment 65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A6312, A6302 and A6302XL DC Offset Adjustment 65. . . . . . . . . . . . . . . . . . . . .

A6303 and A6303XL Adjustments 69. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Required Test Equipment 69. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A6303 and A6303XL DC Offset Adjustment 70. . . . . . . . . . . . . . . . . . . . . . . . . . .

A6303 and A6303XL Transient Response and Gain Adjustment 72. . . . . . . . . . . .

A6304XL Adjustments 75. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Required Test Equipment 75. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A6304XL DC Offset Adjustment 76. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC Gain Adjustment 78. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A6304XL Transient Response Adjustment 80. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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.

Injury Precautions

Ground the Product

Do Not Operate Without

Covers

Do Not Operate in

Wet/Damp Conditions

Do Not Operate in

Explosive Atmosphere

Avoid Exposed Circuitry

This product is grounded through the grounding conductor of the power cord. To avoid electric shock, the grounding conductor must be connected to earth ground. Before making connections to the input or output terminals of the product, ensure that the product is properly grounded.

To avoid electric shock or fire hazard, do not operate this product with covers or panels removed.

To avoid electric shock, do not operate this product in wet or damp conditions.

To avoid injury or fire hazard, do not operate this product in an explosive atmosphere.

To avoid injury, remove jewelry such as rings, watches, and other metallic objects. Do not touch exposed connections and components when power is present.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

iii

General Safety Summary

Product Damage Precautions

Use Proper Power Source

Use Proper Voltage

Setting

Provide Proper Ventilation

Do Not Operate With

Suspected Failures

Do not operate this product from a power source that applies more than the voltage specified.

Before applying power, ensure that the line selector is in the proper position for the power source being used.

To prevent product overheating, provide proper ventilation.

If you suspect there is damage to this product, have it inspected by qualified service personnel.

Safety Terms and Symbols

Terms in This Manual

These terms may appear in this manual:

WARNING. Warning statements identify conditions or practices that could result in injury or loss of life.

Terms on the Product

CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other property.

These terms may appear on the product: DANGER indicates an injury hazard immediately accessible as you read the

marking. WARNING indicates an injury hazard not immediately accessible as you read the

marking. CAUTION indicates a hazard to property including the product.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

General Safety Summary

Symbols on the Product

The following symbols may appear on the product:

DANGER

High Voltage

Certifications and Compliances

CSA Certified Power

Cords

Safety Certification of

Plug-in Modules

CSA Certification includes the products and power cords appropriate for use in the North America power network. All other power cords supplied are approved for the country of use.

For plug-in modules that are safety certified by Underwriters Laboratories, UL Listing applies only when the module is installed in a UL Listed product. CSA Certification applies only when the module is installed in a CSA Certified product.

Protective Ground

(Earth) T erminal

ATTENTION

Refer to Manual

Double

Insulated

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

General Safety Summary

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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

Disconnect Power

Use Care When Servicing

With Power On

Do not perform internal service or adjustments of this product unless another person capable of rendering first aid and resuscitation is present.

To avoid electric shock, disconnect the main power by means of the power cord or, if provided, the power switch.

Dangerous voltages or currents may exist in this product. Disconnect power, remove battery (if applicable), and disconnect test leads before removing protective panels, soldering, or replacing components.

To avoid electric shock, do not touch exposed connections.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

vii

Service Safety Summary

viii

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

Kit Description

Kit Parts List

This kit includes parts and instructions for verifying and adjusting the AM 503B and AM 5030 Current Probe Amplifiers. The recommended calibration interval is one year.

These instructions assume a certain familiarity with the AM 503B and AM 5030 amplifiers. For servicing information, refer to the AM 503B & AM 5030 Instruction Manual (070-8766-XX).

Before you begin the AM 503B or AM 5030 amplifiers, assemble the test equipment required and determine if a full calibration is necessary. None of the components contained in this kit require calibration.

This kit includes the parts listed in Table 1.

T able 1: Kit Parts List

Tektronix Part Number Quantity Description

015-0598-00 1 Voltage adapter

Equipment Required

015-0670-00 1 Feed-thru adapter 129-0425-00 2 Spacer, post: 0.9 L, 4-40 thru, 0.25 hex 174-2314-00 1 Ribbon cable 21 1-0408-00 6 Screw, assem wshr: 4-40 X 0.250, T-10 Torx 220-0729-00 1 Nut block: 4-40 X 0.188 679-2836-02 1 GPIB board

070-9352-XX 1 Calibration Kit Manual

The installation procedure requires a T-10 Torx screwdriver and a flat-blade screwdriver.

The performance verification and adjustment procedures require the test equipment listed in Table 2. The test equipment must meet or exceed the

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

Kit Description

specifications listed. You may need to modify the test procedures if you do not use the recommended equipment.

T able 2: Required Test Equipment

Recommended

Qty Item Description

1 Oscilloscope 500 MHz bandwidth TDS 520B

Equipment

1 Leveled Sine Wave

Generator

1 Digital Multimeter 0.20%, 31/2 digit resolution, range

1 Current Source 0.1%, 0 to ±1 A Fluke 5700A or

1 Calibration Fixture 50 , BNC Connector 015-0601-50 1 Termination 50  ±0.1%, 0.5 W 01 1-0129-00 2 BNC Cables 50 , 1.05m (42in) long 012-0057-01 2 BNC to Dual

Banana Adapters 1 Feed-thru Fixture supplied with kit 015-0670-00 1 Voltage Adapter supplied with kit 015-0598-00 1 Current Probe

Required for functional test only.

3 MHz to 100 MHz Wavetek 9100 with

Option 250 or SG 503 equivalent.

DM2510/G or

±50 mV

Fluke 850x/884x

Wavetek 9100 with Option 250

103-0090-00

A6302

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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. Power the amplifier on and let it warm up at least 20 minutes.

The procedures in this section verify that the AM 503B or AM 5030 amplifier meets the warranted specifications listed in Table 3.

T able 3: AM 503B and AM 5030 Warranted Specifications

Parameter Characteristic

DC Gain Accuracy ≤ 1.5% after DC accuracy measurement and cal constant

loading. DC Balance ± 2 mV RMS Noise ≤ 250 A (2.5 mV) Bandwidth ≥ 100 MHz

Test Procedure Conditions

These procedures are valid only under the following conditions:

H The system has been calibrated at an ambient temperature of 23_ ±5_ C. H The system is operating in an environment whose limits are described in

T able 4: AM 503B and AM 5030 Environmental Characteristics

Parameter Characteristic

Ambient Temperature

Humidity

H The system, including probe, has had a warm-up period of at least

Table 4.

Operating 0_ C to +50_ C

Operating 50_ C, to 95% R.H.

20 minutes.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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. Connect a BNC Cable from the AM 503B/AM 5030 OUTPUT to the

50  feedthrough termination.

b. Attach the termination to a BNC-to-dual banana adapter. c. Observe polarity and insert the dual banana adapter into the digital

multimeter DC voltage input.

2. Connect the input to current source. a. Connect the other BNC cable from the Voltage Adapter to a BNC-to-

dual banana adapter.

b. Observe polarity and insert the dual banana adapter into the current

source DC output. Do not connect the voltage adapter to the amplifier at this time.

Amplifier in TM

Series Power

Module

DMM

Current Source

+–

BNC to Dual

Banana Adapter

50  T ermination

50  Coaxial

Cable

+–

Feed-Thru Fixture

Voltage Adapter

BNC to Dual

Banana Adapter

Figure 1: Test Equipment Setup

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

AM 503B and AM 5030 Performance Verification

3. Make or verify the equipment settings in Table 5:

T able 5: Equipment Settings

Digital Multimeter

Measurement Type DC volts Range Autoranging

Current Source

Output Off

AM 503B and AM 5030 Amplifier

Coupling DC BW Limit On (20MHz) Current/division 10 mA/division Probe Trim 000

Procedure

After the equipment is set up, proceed as follows:

1. Connect the feed-thru fixture (015-0670-00) to the INPUT of the AM 503B/ AM 5030 amplifier and press the PROBE DEGAUSS AUTOBALANCE button. Wait for the degauss/autobalance routine to complete before proceeding. The routine is complete when the indicator light turns off.

2. Remove the feed-thru fixture from the INPUT of the amplifier and connect the Voltage Adapter (015-0598-00) to the INPUT of the amplifier. Do not press the PROBE DEGAUSS AUTOBALANCE button again even though the indicator is flashing.

3. For each of the current/division settings in Table 6, perform the following steps. Remember that any errors that develop here will affect the final DC gain accuracy calculations at the end.

a. Set the Amplifier to the desired current/division setting from Table 6. b. Set the current source to the correct positive test current using Table 6. c. Turn on the current source. d. Record the exact measurement of the digital multimeter as M

. (You can

copy Table 7 on page 8 to record the results of your measurements.)

e. Set the current source for the correct negative test current using Table 6.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

AM 503B and AM 5030 Performance Verification

T able 6: DC Gain Accuracy Calibration Test for the AM503X

AM 503B and AM 5030 Current/Division

1 m A ±100 A 10 mA 2 m A ±200 A 20 mA 5 m A ±500 A 50 mA 10 m A ±1mA 100 mA 20 m A ±2mA 200 mA 50 m A ±5mA 500 mA 100 m A ±10mA 1 A 200 m A ±20mA 2 A 500 m A ±50mA 5 A 1 A ±100 mA 10 A 2 A ±100 mA 10 A

Current Source Output Test Current (It)

5 A ±100 mA 10 A

f. Record the digital multimeter reading as M2. g. Calculate the measured current (I

M1–M



 (currentdivision)

0.01

) using the following formula:

For example, you might have obtained values of 51.0 mV for M1 and –53.0 mV for M sion, you can compute I

(51.0x10



. If you are using an Amplifier setting of 10 mA/divi-

as:

–3

) – (–53.0x10–3)

0.01

 (10x10–3)  104 mA

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

AM 503B and AM 5030 Performance Verification

h. Calculate the %Error between the measured current (I

current (I

%Error +

) %Error as follows:

* I

100

) and the test

For example, using a test current It of 100 mA and a measured current I of 104 mA, the %Error would be:

%Error +

104 – 100

100

100 +)4%

NOTE. It is important that the correct polarity be used in order to calculate the % error

4. Copy the work sheet in Table 7 and fill it in with required data. Calculate the values for each New Rin Cal Constant only if adjustment is required.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

AM 503B and AM 5030 Performance Verification

T able 7: Work Sheet for DC Gain Accuracy Calibration

AM 503B and AM 5030 Current/ Division

Current/Voltage Source Output

Test Current

(Note A)

%Error

(Note B)

Rin Name

1mA ±100 A 10 mA 2mA ±200 A 20 mA 5mA ±500 A 50 mA 10 mA ±1mA 100 mA Rin1X 20 mA ±2mA 200 mA 50 mA ±5mA 500 mA 100 mA ±10 mA 1 A Rin10X 200 mA ±20 mA 2 A 500 mA ±50 mA 5 A 1 A ±100 mA 10 A Rin100X 2 A ±100 mA 10 A 5 A ±100 mA 10 A

Note A

Note B

M2* M

0.01

%Error +

(currentńdivision)

* I

100

Note C Query amplifier for existing Rin1X, Rin10X, and Rin100X Cal Constants

(CALC? 00, CALC? 01, and CALC? 02 respectively).

Note D

New Rin Cal Constant + (1 )

%Error

100

) Existing Rin Cal c onstant

(Calculate this value only if adjustment is required.)

Existing Cal Constant

(Note C)

New Cal Constant

(Note D)

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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.

This procedure checks the DC Balance Test of the AM 503B and AM 5030.

1. Connect a BNC cable from the AM 503B/AM 5030 amplifier OUTPUT to the 50  feedthrough termination. Attach the termination to a BNC-to-dual banana adapter.

2. Taking care to observe and maintain polarity, insert the dual banana adapter into the digital multimeter DC voltage input. Refer to Figure 2.

Amplifier in TM

Series Power

Module

DMM

+–

BNC to Dual

Banana Adapter

50  Termination

50  Coaxial

Cable

Voltage Adapter

Figure 2: Setup for DC Balance

3. Connect the Voltage Adapter (015-0598-00) to the INPUT of the amplifier and disconnect the other end of the Voltage Adapter from ALL other sources. In other words, the BNC end of the Voltage adapter should not be connected up to any thing.

4. Make or verify the equipment settings in Table 8.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

AM 503B and AM 5030 Performance Verification

T able 8: Equipment Settings for DC Balance

Digital Multimeter

Measurement Type DC volts Range Autoranging

AM 503B and AM 5030 Amplifier

Coupling REF BW Limit On (20MHz) Current/division 1 mA/division

5. Press the PROBE DEGAUSS AUTOBALANCE button. Wait for the

degauss/autobalance routine to complete before proceeding. The routine is complete when the indicator light turns off.

6. For each of the Amplifier settings (AC, DC, 1 mA, 2 mA, 5 mA, 10 mA,

20 mA, 50 mA, 100 mA, 200 mA, 500 mA, 1 A, 2 A, 5 A), perform the following steps.

RMS Noise

a. Set the amplifier to the desired setting from above. b. Measure the exact DC voltage with the digital multimeter. c. Verify that the measured DC voltage is less than ±2mV (0.2 divs).

This procedure tests the RMS noise level of the AM 503B and AM 5030 Current Probe Amplifier. In this test you measure the RMS voltage of the amplifier output when the amplifier is set to the most sensitive setting and BW LIMIT is off. Refer to Figure 4 when making equipment connections.

Amplifier in TM

Test Oscilloscope

Series Power

Module

Voltage Adapter

50  oscilloscope input (or add 50 

termination here if oscilloscope has

only high-impedance input).

Figure 3: RMS Noise Test Setup for stand alone AM 503B/AM 5030

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

AM 503B and AM 5030 Performance Verification

1. Using a 50 W BNC cable, connect the Amplifier OUTPUT to a 50 W oscilloscope input. If the input impedance of your oscilloscope is 1 MW, connect a 50 W feedthrough termination at the oscilloscope input. Do not connect the termination at the Amplifier output.

2. Connect the Voltage Adapter to the Amplifier INPUT.. The other end of the Voltage Adapter should not be connected to anything.

3. Make or verify the equipment settings in Table 9.

T able 9: Equipment Settings for RMS Noise Check

Oscilloscope

Vertical input impedance 50  Vertical gain 10 mV/division Time base 2 us/division Record length 500 Coupling DC Offset 0 V (mid-scale) Trigger type Edge Trigger mode Auto Trigger position 50% Acquisition mode Sample Bandwidth 100 MHz Measurement type RMS

AM 503B and AM 5030

Coupling DC BW Limit Off (full bandwidth) Current/division 1 mA/division

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.

5. Set the Oscilloscope couping to AC.

6. Using the RMS measurement capability of the oscilloscope, measure the

RMS reading, and verify that it is less than 250 mA (2.5 mV).

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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. Refer to Figure 4 when making equipment connections.

Leveled

Sine Wave

Generator

Output

Test Oscilloscope

50  oscilloscope input (or add 50 

termination here if oscilloscope has

only high-impedance input).

Amplifier in TM

Series Power

Module

Voltage Adapter

Figure 4: Bandwidth Test Setup

1. Using a 50 W BNC cable, connect the Amplifier OUTPUT to a 50 W

oscilloscope input. If the input impedance of your oscilloscope is 1 MW, connect a 50 W feedthrough termination at the oscilloscope input. Do not connect the termination at the Amplifier output.

2. Connect the Voltage Adapter to the Amplifier INPUT.

3. Make or verify the equipment settings in Table 10:

T able 10: Equipment Settings for Bandwidth Check

Oscilloscope

Vertical input impedance 50  Vertical gain 10 mV/division Time base 100 ns/division Record length 500 Coupling DC Offset 0 V (mid-scale) Trigger type Edge Trigger mode Auto Trigger position 50% Acquisition mode Average

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

AM 503B and AM 5030 Performance Verification

T able 10: Equipment Settings for Bandwidth Check (Cont.)

Oscilloscope

Number of waveforms to average 16 Measurement type Peak-to-Peak

Leveled Sine Wave Generator

Frequency 3MHz Amplitude 3.0 V

AM 503B and AM 5030

Coupling DC BW Limit Off (full bandwidth) Current/division 500 mA/division

p-p

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.

5. Connect the BNC cable from the output of the leveled sine wave generator to the BNC end of the Voltage Adapter.

6. Adjust the signal generator output so that the Amplifier output is approximately 60 mV

, or six graticule divisions on the oscilloscope.

p-p

7. Using the peak-peak measurement capability of the oscilloscope, measure and record the peak-peak reading as M

8. Set the oscilloscope time base to 5 ns/division. Increase the signal generator frequency to 100 MHz, the upper test frequency.

9. Using the peak-peak measurement capability of the oscilloscope, measure and record the peak-peak reading as M

10. The system meets the bandwidth specification if the ratio of the signal amplitude at the warranted bandwidth is at least 70% of the signal amplitude at 3 MHz. Using the following calculation, verify system bandwidth:

u 0.707

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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.

3. Verify that there are no error codes.

Test Oscilloscope

Amplifier in TM

Series Power

Module

Current Probe

50  Input

Figure 5: Setup for Degaussing the Current Probe

This completes the performance verification. If the AM 503B or AM 5030 amplifier fails any of the verification tests, refer to

the AM 503B and AM 5030 Instruction Manual for servicing information.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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 procedure. The AM 503B amplifier requires the GPIB test fixture in order to set the internal calibration constants. After the adjustment procedure is complete, you must remove the test fixture.

The AM 5030 amplifier already contains a GPIB board. If you are calibrating an AM 5030 amplifier, disregard this section and proceed with the adjustment procedure on page 19.

CAUTION. GPIB installation should only be performed by qualified service personnel.

Assemble GPIB Test Fixture

Use the following procedure to assemble the GPIB test fixture. Once you assemble the fixture, you can use it to calibrate any number of AM 503B amplifiers.

1. Refer to Figure 6. Install the spacers (129-0425-00) onto the GPIB board with two screws (210-0408-00).

2. Install the ribbon cable (174-2314-00) onto the GPIB with the RED edge oriented as shown. (The tabbed end of the connector connects to the main board of the AM 503B amplifier.)

3. Install nut block (220-0729-00) onto the GPIB board with one screw (210-0408-00).

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

GPIB Installation

Screw

GPIB Board

Nut Block

Spacers (2)

Screws (2)

Figure 6: Assembling the GPIB Test Fixture

Ribbon Cable

Red Edge

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

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

Install GPIB Test Fixture

GPIB Installation

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)

Figure 8: Installing the GPIB Test Fixture

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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.

3. Align the spacers of the test fixture over the holes on the main circuit board. a. Install two screws (210-0408-00) through the main board to both

spacers.

b. Install one screw (210-0408-00) through the rear frame to the nut block

on the GPIB board.

This completes the GPIB installation. Remove the GPIB test fixture and reinstall the side covers after the adjustment procedure is complete.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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. Refer to the procedure that begins on page 15.

Amplifier Setup

Set up the AM 503B or AM 5030 amplifiers as follows:

1. Plug the AM 503B or AM 5030 into the TM 5000 mainframe.

2. Power the amplifier on and let it warm up at least 20 minutes. The amplifier

must be calibrated at an ambient temperature between 25 ±5_ C.

3. Enable the Cal Mode of the amplifier by sending the following command

over the GPIB interface:

 

NOTE. You must send the   command in order to load the calibration constants.

4. On the AM 5030 amplifier only, send the  query and verify that the

serial number is correct. If the serial number of the AM 5030 amplifier is not correct, perform the

following steps: a. Send the following command over the GPIB interface:

    !

Be sure to hit the space bar twice before entering the serial number (i.e.   ).

b. Send the  query again to verify that the serial number of the

AM 5030 is now correct.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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.

1. Query amplifier for existing Rin1X, Rin10X, and Rin100X Cal Constants (, , and   respectively). Enter these values in Table 7 on page 8.

2. For each Existing Rin Cal Constant entered in Table 7 on page 8, calculate the New Rin Cal Constants using the following formulas:

New Rin Cal Constant + (1 )

%Error

100

) Existing Rin Cal Constant

For example, having a %Error of +4.0% at 10 mA and an Existing Rin1X Cal Constant of 25500 would translate into a New Rin Cal Constant as follows:

New Rin Cal Constant + (1 )

) 4.0

) 25500 + 26520

100

NOTE. The Rin Cal Constants must be five digit numbers.

3. Enter the New Cal Constant for each of the three settings, Rin1X, Rin10X, and Rin100X in Table 7 on page 8.

4. Over the GPIB interface load the New Rin Cal Constants: a. Send the command:

   

The parameter,   , is the Cal Constant for Rin 1X from Table 7.

For example, using the New Rin1X calculated above of 26520, the GPIB command sent to the amplifier would be as follows:

 

This will load the Rin1X with the new calibration constant to fine tune the DC gain accuracy of the amplifier.

b. Send the command:

   

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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. Verify the Cal Constants by sending the following commands:

     

e. Connect a feed-thru adapter to the input of the amplifier and send the

command:

 

NOTE. It is important to use the feed-thru adapter and the DEGAuss 1 command; otherwise the gain check will not work

5. Repeat the DC Gain Accuracy check on page 4.

GPIB Removal (AM 503B Only)

Remove the GPIB test fixture from the AM503B amplifier only. The GPIB board of the AM 5030 remains with the amplifier. Refer to Figure 8 on page 17 and use the following procedure:

1. Power the amplifier off and remove amplifier from the TM 5000 mainframe.

2. Remove the screw from the rear frame.

3. Remove the two screws from the bottom of the main board that connect to

the spacers of the test fixture.

4. Remove the GPIB Test Fixture Board

5. Disconnect the tabbed end of the ribbon cable (174-2314-00) from the main

board. Leave the cable attached to the GPIB board.

6. Reinstall the side covers on the amplifier.

7. Store the test fixture with standoffs and cable intact.

This completes the adjustment procedure.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

AM503B and AM5030 Adjustments

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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 recommended 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. Since the amplifier and probe are designed as a system with known performance characteristics, it is not necessary for the amplifier to meet the 4:1 uncertainty ratio that is normally recommended for calibrations. To calibrate probes using an AM 503B or AM 5030 as a standard, follow the performance verification procedures in these instructions or in the AM 503B and AM 5030 Instruction Manual.

No probe or Amplifier adjustments are required during these test procedures. Should any test fail, refer to the troubleshooting section in the AM 503B and AM 5030 Instruction Manual for recommendations.

Tolerances that are specified in these procedures apply to the Amplifier and current probe and do not include test equipment error.

Test Procedure Conditions

These procedures are valid only under the following conditions:

H The system has been calibrated at an ambient temperature of 25_±5_ C. H The system is operating in an environment whose limits are described in

H The system, including probe, has had a warm-up period of at least

H The probe degauss/autobalance routine has been performed after the

Equipment Preparation

Before performing the verification tests, install all plug-in units into the power module and turn the power on. Turn any remaining equipment on and allow the entire system, including the attached probe, to warm up for a minimum of 20 minutes.

Table 4 on page 3.

20 minutes.

20-minute warm-up period.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

Performance Verification Setup for Current Probes

arameter

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 . Verify that the oscilloscope input is 50  and set to DC coupling. Use a 50  feedthrough termination, attached at the oscilloscope input, if necessary.

Warranted Specifications

Warranted specifications, Table 11, are guaranteed performance specifications unless specifically designated as typical or nominal.

T able 11: Warranted AM 503B and AM 5030 Specifications

Installed Probe

Bandwidth DC to 100 MHz,

Rise Time, 10% to 90% 3.5 ns 7 ns 23 ns 20 ns 35 ns 175 ns DC Gain Accuracy 3% 3% 3% 3% 3% 3%

A6312 A6302 A6303 A6302XL A6303XL A6304XL

–3 dB

DC to 50 MHz, –3 dB

DC to 15 MHz, –3 dB

DC to 17 MHz, –3 dB

DC to 10 MHz, –3 dB

DC to 2 MHz, –3 dB

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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. The test equipment must meet or exceed the specifications listed. The test procedures may need to be modified if the recommended equipment is not used.

T able 12: Required Test Equipment

Qty Item Description

1 Oscilloscope 500 MHz bandwidth TDS 520B

Recommended Equipment

1 Current Probe

Amplifier

1 Leveled Sine Wave

Generator

1 Calibration Generator 1 MHz square wave, rise time <1 ns,

1 Digital Multimeter 0.25% 31/2 digit resolution

1 Current Source 0.3% accuracy, 0 to ±2 A Fluke 5700A or

1 Calibration Fixture 50 , BNC Connector 015-0601-50 1 Current Loop 20 turns 27 AWG coated wire Refer to page 40. 1 Termination 50  ±0.1%, 0.5 W 01 1-0129-00 1 BNC Cable 50 , 1.05m (42in) long 012-0057-01 1 BNC to Dual

Banana Adapter

3 MHz to 100 MHz Wavetek 9100 with

into 50 

p-p

at ± 50 mV

AM503B or AM5030

Option 250 or SG 503 equivalent.

Wavetek 9100 with Option 250 or PG 506A equivalent

DM2510/G or Fluke 850x/884x

Wavetek 9100 with Option 250

103-0090-00

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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. Refer to Figure 9 when making equipment connections.

Equipment Connections

Leveled

Sine Wave

Generator

Output

Calibration

Fixture

Test Oscilloscope

50  oscilloscope input (or add 50 

termination here if oscilloscope has

only high-impedance input).

Amplifier in TM

Series Power

Module

Current Probe

Figure 9: Bandwidth Test Setup for A6312

2. Connect the current probe to the Amplifier INPUT.

Equipment Settings

3. Connect the current loop calibration fixture to the output of the leveled sine wave generator.

Make or verify the equipment settings in Table 13.

T able 13: Equipment Settings for Bandwidth

Oscilloscope

Vertical input impedance 50  Vertical gain 10 mV/division Time base 200 ns/division Record length 500 Coupling DC Offset 0 V (mid-scale)

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6312 Performance Verification

T able 13: Equipment Settings for Bandwidth (Cont.)

Oscilloscope

Trigger type Edge Trigger mode Auto Trigger position 50% Acquisition mode Average Number of waveforms to average 8 Measurement type Peak-to-Peak

Leveled Sine Wave Generator

Frequency 3MHz Amplitude 3V

AM 503B and AM 5030

Coupling DC BW Limit Off (full bandwidth) Current/division 10 mA/division

p-p

Procedure

1. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

2. 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.

3. Clamp the current probe around the calibration fixture.

4. Adjust the signal generator output so that the Amplifier output is approxi-

mately 60 mV

, or six graticule divisions on the oscilloscope.

p-p

5. Using the peak-peak measurement capability of the oscilloscope, measure

and record the peak-peak reading as M

6. Set the oscilloscope time base to 5 ns/division. Increase the signal generator

frequency to the warranted bandwidth. Refer to Table 11 on page 24.

7. Using the peak-peak measurement capability of the oscilloscope, measure

and record the peak-peak reading as M

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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 bandwidth:

u 0.707

NOTE. The impedance of the calibration fixture used in this test changes between 3 MHz and 100 MHz. Typically the impedance changes from 50  at 3 MHz to 59  at 100 MHz. Thus you can substitute the following equation to make this test more accurate:

(

1.18

)

u 0.707

Rise Time

This procedure measures the rise time of the A6312. In this test you directly measure the rise time of a step input. Refer to Figure 10 when making equipment connections.

Test Oscilloscope

50  Input

Amplifier in TM

Series Power

Module

Current Probe

Calibration

Generator

Fast Rise

Output

Calibration

Fixture

Figure 10: Rise Time Test Setup for A6312

Equipment Connections

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.

2. Connect the current probe to the Amplifier INPUT.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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. Configure the oscilloscope for an external trigger.

Equipment Settings

Make or verify the equipment settings in Table 14:

T able 14: Equipment Settings for Rise Time

Oscilloscope

Vertical input impedance 50 W Vertical gain 10 mV/division Time base 2 ns/division Record length 500 Coupling DC Offset 0 V (mid-scale) Trigger type Edge Trigger mode Auto Trigger position 50% Acquisition mode Average Number of waveforms to average 32 Measurement type Rise Time

Calibration Generator

Period 1 ms Output Fast rise Amplitude Maximum

AM 503B and AM 5030

Coupling DC BW Limit Off (full bandwidth) Current/division 5 mA/division

Procedure

1. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

2. 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.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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.

DC Gain Accuracy

Current Loop for DC Gain

Accuracy Check

5. Calculate the rise time of the probe (t

trprobe + trmeasured2* trsystem

probe) using the formula below:

The measured rise time (tr measured) is the value calculated in step 4. The system rise time (t

system) is the rise time of the displayed signal when

output of the pulse generator is connected directly to the oscilloscope input. (The current probe and amplifier are excluded.)

6. Verify that the probe rise time is less than the warranted specification. Refer to Table 11 on page 24.

This procedure tests the DC gain accuracy of the A6312 Current Probes. In this test you compare the voltage output of the Amplifier to a reference input.

You will need to construct a simple current loop in order to complete the DC gain accuracy tests.

WARNING. Magnetic fields are produced that may cause a malfunction in heart pacemakers, or damage to sensitive equipment.

Equipment Connections

Construct the loop using a cylindrical form approximately 3 inches in diameter, wind exactly 20 turns of #27 coated wire.

NOTE. Ensure that the current loop has exactly 20 turns. A significant error will result for each turn variance from 20 turns.

1. Using a BNC cable, connect the Amplifier OUTPUT to the 50  feed- through termination. Attach the termination to a BNC-to-dual banana adapter. Taking care to observe and maintain polarity, insert the dual banana adapter into the digital multimeter DC voltage input.

2. Connect the current loop to the current source as shown in Figure 11.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

DMM

Amplifier in TM

Series Power

Module

A6312 Performance Verification

Current Source

Equipment Settings

+–

20 Turns

BNC to Dual

Banana Adapter

50  Termination

50  Coaxial

Cable

Probe

Figure 11: DC Gain Accuracy Test Setup for A6312

Make or verify the equipment settings in Table 15:

T able 15: Equipment Settings for DC Gain Accuracy

Digital Multimeter

Measurement Type DC volts Range Autoranging

Current Source

Output Off

AM 503B and AM 5030

Coupling DC BW Limit On (20MHz) Current/division 1 mA/division Probe Trim 000

Output

Current Flow

+–

Procedure

1. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

2. 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.

3. Clamp the current probe around the 20 turn current loop, as shown in Figure

14 on page 41. Verify that the arrow-shaped indicator on the probe points away from the current source.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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. Turn on the current source. d. Record the exact measurement of the digital multimeter as M

. (You can

copy Table 17 on page 34 to record the results of your measurements.)

e. Set the current source for the correct negative test current using Table 16.

T able 16: DC Gain Accuracy Test for A6312

Turns of Current Loop Passing Through Probe

20 1mA ±250 A 10 mA 20 2mA ±500 A 20 mA 20 5mA ±1.25 mA 50 mA 20 10 mA ±2.5 mA 100 mA 20 20 mA ±5mA 200 mA 20 50 mA ±12.5 mA 500mA 20 100 mA ±25 mA 1 A 20 200 mA ±50 mA 2A 20 500 mA ±125 mA 5A 20 1A ±250 mA 10 A

AM 503B and AM 5030 Current/Division

Current Source Output

Test Current

20 2A ±500 mA 20 A 20 5A ±1 A 40A

f. Record the digital multimeter reading as M2. g. Calculate the measured current (I

M1–M



 (currentdivision)

0.01

) using the following formula:

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6312 Performance Verification

For example, you might have obtained values of 50 mV for M 48 mV for M you can compute I

(50.0x10

. If you are using an Amplifier setting of 10 mA/division,

as:

–3

) – (–48x10–3)

0.01

(10x10–3) + 98 mA

and

h. Verify that the measured current (Im) is within ±3% of the test current (It)

by computing %Error as follows:

* I

%Error +

For example, using a test current It of 100 mA and a measured current I

100

of 98 mA, the %Error would be:

%Error +

98 – 100

100

100 + –2%

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6312 Performance Verification

T able 17: DC Gain Accuracy Test Worksheet for A6312

Turns of Current Loop Passing Through Probe

AM 503B and AM 5030 Current/Division

Current Source Output

Test Current

20 1mA ±250 A 10 mA 20 2mA ±500 A 20 mA 20 5mA ±1.25 mA 50 mA 20 10 mA ±2.5mA 100 mA 20 20 mA ±5mA 200mA 20 50 mA ±12.5mA 500mA 20 100 mA ±25 mA 1A 20 200 mA ±50 mA 2A 20 500 mA ±125 mA 5A 20 1A ±250 mA 10 A 20 2A ±500 mA 20 A 20 5A ±1 A 40 A

Note A

Note B

M1–M

0.01

%Error +

(currentńdivision)

* I

100

(Note A)

%Error

(Note B)

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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. The test equipment must meet or exceed the specifications listed. The test procedures may need to be modified if the recommended equipment is not used.

T able 18: Required Test Equipment

Qty Item Description

1 Oscilloscope 350 MHz bandwidth TDS 520B

Recommended Equipment

1 Current Probe

Amplifier

1 Leveled Sine Wave

Generator

1 Calibration Generator 1 MHz square wave, rise time <1 ns,

1 Digital Multimeter 0.25% 31/2 digit resolution

1 Current Source 0.3% accuracy, 0 to ±2 A Fluke 5700A or

Banana Adapter

3 MHz to 50 MHz Wavetek 9100 with

into 50 

p-p

at ± 50 mV

AM503B or AM5030

Option 250 or SG 503 equivalent

Wavetek 9100 with Option 250 or PG 506A equivalent

DM2510/G or Fluke 850x/884x

Wavetek 9100 with Option 250

103-0090-00

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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. Refer to Figure 12 when making equipment connections.

Equipment Connections

Leveled

Sine Wave

Generator

Output

Calibration

Fixture

Test Oscilloscope

50  oscilloscope input (or add 50 

termination here if oscilloscope has

only high-impedance input).

Amplifier in TM

Series Power

Module

Current Probe

Figure 12: Bandwidth Test Setup for A6302

2. Connect the current probe to the Amplifier INPUT.

Equipment Settings

3. Connect the current loop calibration fixture to the output of the leveled sine wave generator.

Make or verify the equipment settings in Table 19.

T able 19: Equipment Settings for Bandwidth

Oscilloscope

Vertical input impedance 50  Vertical gain 10 mV/division Time base 200 ns/division Record length 500 Coupling DC Offset 0 V (mid-scale)

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6302 and A6302XL Performance Verification

T able 19: Equipment Settings for Bandwidth (Cont.)

Oscilloscope

Trigger type Edge Trigger mode Auto Trigger position 50% Acquisition mode Average Number of waveforms to average 8 Measurement type Peak-to-Peak

Leveled Sine Wave Generator

Frequency 3MHz Amplitude 3V

AM 503B and AM 5030

Coupling DC BW Limit Off (full bandwidth) Current/division 10 mA/division

p-p

Procedure

1. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

2. 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.

3. Clamp the current probe around the calibration fixture.

4. Adjust the signal generator output so that the Amplifier output is approxi-

mately 60 mV

, or six graticule divisions on the oscilloscope.

p-p

5. Using the peak-peak measurement capability of the oscilloscope, measure

and record the peak-peak reading as M

6. Set the oscilloscope time base to 10 ns/division. Increase the signal generator

frequency to the warranted bandwidth. Refer to Table 11 on page 24.

7. Using the peak-peak measurement capability of the oscilloscope, measure

and record the peak-peak reading as M

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 bandwidth:

u 0.707

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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  at 3 MHz to 53  at 50 MHz. Thus you can substitute the following equation to make this test more accurate:

(

1.06

)

u 0.707

Rise Time

This procedure measures the rise time of the A6302 and A6302XL. In this test you directly measure the rise time of a step input. Refer to Figure 13 when making equipment connections.

Equipment Connections

Test Oscilloscope

50  Input

Amplifier in TM

Series Power

Module

Current Probe

Calibration

Generator

Fast Rise

Output

Calibration

Fixture

Figure 13: Rise Time Test Setup for A6302/A6302XL

2. Connect the current probe to the Amplifier INPUT.

3. Connect the current loop calibration fixture to the calibration generator 50  fast rise output.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6302 and A6302XL Performance Verification

Equipment Settings

Make or verify the equipment settings in Table 20:

T able 20: Equipment Settings for Rise Time

Oscilloscope

Calibration Generator

Period 1 ms Output Fast rise Amplitude Maximum

AM 503B and AM 5030

Coupling DC BW Limit Off (full bandwidth) Current/division 5 mA/division

Procedure

1. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

2. 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.

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.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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. In this test you compare the voltage output of the Amplifier to a reference input.

Current Loop for DC Gain

Accuracy Check

Equipment Connections

You will need to construct a simple current loop in order to complete the DC gain accuracy tests.

WARNING. Magnetic fields are produced that may cause a malfunction in heart pacemakers, or damage to sensitive equipment.

Construct the loop using a cylindrical form approximately 3 inches in diameter, wind exactly 20 turns of #27 coated wire.

NOTE. Ensure that the current loop has exactly 20 turns. A significant error will result for each turn variance from 20 turns.

2. Connect the current loop to the current source as shown in Figure 14.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

DMM

A6302 and A6302XL Performance Verification

Amplifier in TM

Series Power

Module

Current Source

Equipment Settings

+–

20 Turns

BNC to Dual

Banana Adapter

50  Termination

50  Coaxial

Cable

Probe

Figure 14: DC Gain Accuracy Test Setup for A6302/A6302XL

Make or verify the equipment settings in Table 21:

T able 21: Equipment Settings for DC Gain Accuracy

Digital Multimeter

Measurement Type DC volts Range Autoranging

Current Source

Output Off

AM 503B and AM 5030

Coupling DC BW Limit On (20MHz) Current/division 1 mA/division Probe trim 000

Output

Current Flow

+–

Procedure

1. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

2. 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.

3. Clamp the current probe around the 20 turn current loop, as shown in Figure

14 on page 41. Verify that the arrow-shaped indicator on the probe points away from the current source.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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. Turn on the current source. d. Record the exact measurement of the digital multimeter as M

. (You can

copy Table 23 on page 44 to record the results of your measurements.)

e. Set the current source for the correct negative test current using Table 22.

T able 22: DC Gain Accuracy Test for A6302

Turns of Current Loop Passing Through Probe

AM 503B and AM 5030 Current/Division

/A6302XL

Current Source Output

Test Current

20 2A ±500 mA 20 A 20 5A ±1 A 40A

f. Record the digital multimeter reading as M2. g. Calculate the measured current (I

M1–M



 (currentdivision)

0.01

) using the following formula:

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6302 and A6302XL Performance Verification

For example, you might have obtained values of 50 mV for M 48 mV for M you can compute I

(50.0x10

. If you are using an Amplifier setting of 10 mA/division,

as:

–3

) – (–48x10–3)

0.01

(10x10–3) + 98 mA

and

h. Verify that the measured current (Im) is within ±3% of the test current (It)

by computing %Error as follows:

* I

%Error +

For example, using a test current It of 100 mA and a measured current I

100

of 98 mA, the %Error would be:

%Error +

98 – 100

100

100 + –2%

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6302 and A6302XL Performance Verification

T able 23: DC Gain Accuracy Test Worksheet for A6302/A6302XL

Turns of Current Loop Passing Through Probe

AM 503B and AM 5030 Current/Division

Current Source Output

Test Current

20 1mA ±250 A 10 mA 20 2mA ±500 A 20 mA 20 5mA ±1.25 mA 50 mA 20 10 mA ±2.5mA 100 mA 20 20 mA ±5mA 200mA 20 50 mA ±12.5mA 500mA 20 100 mA ±25 mA 1A 20 200 mA ±50 mA 2A 20 500 mA ±125 mA 5A 20 1A ±250 mA 10 A 20 2A ±500 mA 20 A 20 5A ±1 A 40 A

Note A

Note B

M1–M

0.01

%Error +

(currentńdivision)

* I

100

(Note A)

%Error

(Note B)

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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. The test equipment must meet or exceed the specifications listed. The test procedures may need to be modified if the recommended equipment is not used.

T able 24: Required Test Equipment

Qty Item Description

1 Oscilloscope 350 MHz bandwidth TDS 520B

Recommended Equipment

1 Current Probe

Amplifier

1 Leveled Sine Wave

Generator

1 Calibration Generator 1 MHz square wave, rise time <1 ns,

1 Digital Multimeter 0.25% 31/2 digit resolution

1 Current Source 0.3% accuracy, 0 to ±2 A Fluke 5700A or

1 Calibration Fixture 50 , BNC Connector 015-0601-50 1 Current Loop 50 turns 21 AWG coated wire Refer to page 50. 1 Termination 50  ±0.1%, 0.5 W 01 1-0129-00 1 BNC Cable 50 , 1.05m (42in) long 012-0057-01 1 BNC to Dual

Banana Adapter

3 MHz to 15 MHz Wavetek 9100 with

into 50 

p-p

at ± 50 mV

AM503B or AM5030

Option 250 or SG 503 equivalent

Wavetek 9100 with Option 250 or PG 506A equivalent

DM2510/G

Wavetek 9100

103-0090-00

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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. Refer to Figure 15 when making equipment connections.

Equipment Connections

Leveled

Sine Wave

Generator

Fast Rise

Calibration

Test Oscilloscope

50  oscilloscope input (or add 50  termination here

if oscilloscope has only high-impedance input).

Amplifier in TM

Series Power

Module

Current

Probe

Figure 15: Bandwidth Test Setup for an A6303 or A6303XL

2. Connect the current probe to the Amplifier INPUT.

Output

Fixture

Equipment Settings

3. Connect the current loop calibration fixture to the output of the leveled sine wave generator.

Make or check the equipment settings in Table 25:

T able 25: Equipment Settings for Bandwidth

Oscilloscope

Vertical input impedance 50  Vertical gain 10 mV/division Time base 200 ns/division Record length 500 Coupling DC Offset 0 V (mid-scale)

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6303 and A6303XL Performance Verification

T able 25: Equipment Settings for Bandwidth (Cont.)

Oscilloscope

Trigger type Edge Trigger mode Auto Trigger position 50% Acquisition mode Average Number of waveforms to average 8 Measurement type Peak-to-Peak

Leveled Sine Wave Generator

Frequency 3MHz Amplitude 3V

AM 503B and AM 5030

Coupling DC BW Limit Off Current/division 10 mA/division

p-p

Procedure

1. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

2. 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.

3. Clamp the current probe around the current loop calibration fixture.

4. Adjust the signal generator output so that the Amplifier output is

≈60 mV

, or six graticule divisions on the oscilloscope.

p-p

5. Using the peak-peak measurement capability of the oscilloscope, measure

and record the peak-peak reading as M

6. Set the oscilloscope time base to 50 ns/division. Increase the signal generator

frequency to the warranted bandwidth. Refer to Table 11 on page 24.

7. Using the peak-peak measurement capability of the oscilloscope, measure

and record the peak-peak reading as M

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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:

u 0.707

Rise Time

This procedure measures the rise time of the A6303 and A6303XL. In this test you directly measure the rise time of a step input. Refer to Figure 16 when making equipment connections.

Equipment Connections

Test Oscilloscope

50  Input

Amplifier in TM

Series Power

Module

Current

Probe

Calibration

Generator

Fast Rise

Output

Calibration

Fixture

Figure 16: Rise Time Test Setup for A6303 or A6303XL

1. Using a 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.

2. Connect the probe to the Amplifier.

Equipment Settings

3. Connect the current loop calibration fixture to the calibration generator 50  fast rise output.

Make or check the equipment settings in Table 26.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6303 and A6303XL Performance Verification

T able 26: Equipment Settings for Rise Time

Oscilloscope

Vertical input impedance 50 W Vertical gain 5 mV/division Time base 10 ns/division Record length 500 Coupling DC Offset 0 V (mid-scale) Trigger type Edge Trigger mode Auto Trigger position 50% Acquisition mode Average Number of waveforms to average 8 Measurement type Rise Time

Calibration Generator

Period 1 ms Output Fast Rise Amplitude Maximum

AM 503B and AM 5030

Coupling DC BW Limit Off Current/division 5 mA/division

NOTE. This is the only test where the oscilloscope vertical gain should be set at other than 10 mV/division. Reset the vertical gain to 10 mV/division when the rise time check is complete.

Procedure

1. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

2. 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.

3. Clamp the current probe around the current loop calibration fixture. Check

that the arrow-shaped indicator on the probe points away from the source.

4. Using the measurement capability of the oscilloscope, measure the rise time

of the displayed pulse from 10% to 90% amplitude.

5. Check that the rise time is less than the warranted specification. Refer to

Table 11 on page 24.

6. Reset the oscilloscope vertical gain to 10 mV/division.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6303 and A6303XL Performance Verification

DC Gain Accuracy

WARNING. This test produces intense magnetic fields that may cause malfunctions 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.

This procedure tests the DC gain accuracy of the A6303 and A6303XL. In this test you compare the voltage output of the Amplifier to a reference input.

Current Loop for DC Gain

Accuracy Check

Equipment Settings

You will need to construct a simple current loop in order to complete the DC gain accuracy tests. Construct the loop as follows using a cylindrical form approximately 3 inches in diameter, wind exactly 50 turns of #21 coated wire.

NOTE. Ensure that the current loop has exactly 50 turns. A significant error will result for each turn variance from 50 turns.

Make or check the equipment settings in Table 27.

T able 27: Equipment Settings for DC Gain Accuracy

Digital Multimeter

Measurement Type DC volts Range Autoranging

Current Source

Output Off

AM 503B and AM 5030

Coupling DC BW Limit On Current/division 5 mA/division

Equipment Connections

1. Using a BNC cable, connect the Amplifier OUTPUT to a 50  feedthrough termination. Attach the termination to a BNC-to-dual banana adapter. Taking care to observe the adapter polarity, insert the dual banana adapter into the digital multimeter DC voltage input.

2. Connect the current loop to the current source as shown in Figure 17.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

DMM

A6303 and A6303XL Performance Verification

Amplifier in TM

Series Power

Module

Current Source

Procedure

BNC to Dual

Banana Adapter

50  Termination

50  Coaxial

Cable

Output

+–

50 Turns

Probe

Current Flow

+–

Figure 17: DC Gain Accuracy Test Setup for A6303/A6303XL

1. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

2. 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.

3. Clamp the current probe around the one conductor of the current loop. (See

Figure 17 on page 51.) Check that the arrow-shaped indicator on the probe points away from the current source.

4. For each of the Amplifier current/division settings in Table 28 on page 52,

perform the following steps:

a. Set the Amplifier to the desired current/division setting from Table 28. b. Set the current source to the correct positive test current using Table 28. c. Turn on the current source. d. Record the exact measurement of the digital multimeter as M

copy Table 29 on page 53 to record the results of your measurements.)

e. Set the current source for the correct negative test current using Table 28.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

. (You can

A6303 and A6303XL Performance Verification

T able 28: DC Gain Accuracy Test for A6303

Turns of Current Loop Passing Through Probe

AM 503B and AM 5030 Current/Division

/A6303XL

Current Source Output

Test Current

50 5mA ±500 A 50 mA 50 10 mA ±1mA 100 mA 50 20 mA ±2mA 200 mA 50 50 mA ±5mA 500 mA 50 100 mA ±10 mA 1A 50 200 mA ±20 mA 2A 50 500 mA ±50 mA 5A 50 1A ±100 mA 10 A 50 2A ±200 mA 20 A 50 5A ±500 mA 50 A 50 10 A ±1A 100A 50 20 A ±2A 200A 50 50 A ±2A 200A

f. Record the digital multimeter reading as M2. g. Calculate the measured current (I

M1–M

(currentńdivision)

0.01

) using the following formula:

For example, you might have obtained values of 50 mV for M1 and 48 mV for M you can compute I

(50.0x10

. If you are using an Amplifier setting of 10 mA/division,

as:

–3

) – (–48x10–3)

0.01

(10x10–3) + 98 mA

h. Verify that the measured current (Im) is within ±3% of the test current (It)

by computing %Error as follows:

%Error +

Im* I

For example, using a test current It of 100 mA and a measured current I

100

of 98 mA, the %Error would be:

%Error +

98 – 100

100

100 + –2%

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

T able 29: DC Gain Accuracy Test Work Sheet for A6303/A6303XL

A6303 and A6303XL Performance Verification

Turns of Current Loop Passing Through Probe

AM 503B and AM 5030 Current/Division

Current Source Output

Test Current

50 5mA ±500 A 50 mA 50 10 mA ±1mA 100mA 50 20 mA ±2mA 200mA 50 50 mA ±5mA 500mA 50 100 mA ±10 mA 1A 50 200 mA ±20 mA 2A 50 500 mA ±50 mA 5A 50 1A ±100 mA 10 A 50 2A ±200 mA 20 A 50 5A ±500 mA 50 A 50 10 A ±1A 100 A 50 20 A ±2A 200 A 50 50 A ±2A 200 A

Note A

Note B

0.01

%Error +

–M

(currentńdivision)

* I

100

(Note A)

%Error

(Note B)

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6303 and A6303XL Performance Verification

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6304XL Performance Verification

The test procedures in this section check for proper performance of the A6304XL 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 30. The test equipment must meet or exceed the specifications listed. The test procedures may need to be modified if the recommended equipment is not used.

T able 30: Required Test Equipment

Qty Item Description

1 Oscilloscope 20 MHz bandwidth Tektronix TDS 520B

Recommended Equipment

1 Digital Multimeter 0.25%, 31/2 digit resolution

at ± 50 mV

1 Current Source 0.3% accuracy, 0 to ±2 A Fluke 5700A or

1 Calibration Generator Square wave with a rise time <35 ns,

5 A into 50  1 Current Loop 250 turns 067-0240-00 1 Termination 50  ±0.1%, 0.5 W 01 1-0129-00 2 BNC Cable 50 , 1.05m (42in) long 012-0057-01 3 BNC to Dual

Banana Adapter

AVTECH Electrosystems Ltd. P.O. Box 265, Ogdensburg NY 13669-0265 (315) 472-5270 or (800) 265-6681

DM2510/G or Fluke 850x/884x

Wavetek 9100 with Option 250

AVTECH1 AVR-3-PW-C-P-TEK2

103-0090-00

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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.

Equipment Connections

Test Oscilloscope

50 W Input

Amplifier in TM

Series Power

Module

Current

Probe

Calibration

Generator

Output Loop

Figure 18: Rise Time Test Setup for the A6304XL

1. Using a 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.

2. Connect the probe to the Amplifier.

3. Connect the current loop calibration fixture to the calibration generator 50 

fast rise output.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6304XL Performance Verification

Equipment Settings

Make or check the equipment settings in Table 31:

T able 31: Equipment Settings for Rise Time

Oscilloscope

Vertical input impedance 50 W Vertical gain 10 mV/division Time base 50 ns/division Record length 500 Coupling DC Offset 0 V (mid-scale) Trigger type Edge Trigger mode Auto Trigger position 50% Acquisition mode Average Number of waveforms to average 8 Measurement type Rise Time

Calibration Generator

Pulse width 250 ms Pulse repetition frequency 25 Hz Amplitude 5 A peak

AM 503B and AM 5030

Coupling DC BW Limit Off Current/division 1 A/division

Procedure

1. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

2. 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.

3. Clamp the current probe around the current loop calibration fixture. Check

that the arrow-shaped indicator on the probe points away from the source.

4. Using the measurement capability of the oscilloscope, measure the rise time

of the displayed pulse from 10% to 90% amplitude.

5. Check that the rise time is less than the warranted specification. Refer to

Table 11 on page 24.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6304XL Performance Verification

Bandwidth

The bandwidth of the probe is derived as a function of its rise time. The rise time (t edge of the pulse. (Refer to the procedure on page 56.) To calculate the probe bandwidth, use the following formula:

For example, a rise time of 175 ns would result in the following solution:

) is measured in nanoseconds between the 10% and 90% points of the leading

0.35

+ Bandwi dth

DC Gain Accuracy

Equipment Connections

175 10

This procedure tests the DC gain accuracy of the A6304XL. In this test you compare the voltage output of the Amplifier to a reference input.

1. Using a BNC cable, connect the Amplifier OUTPUT to a 50  feedthrough

termination. Attach the termination to a BNC-to-dual banana adapter. Taking care to observe the adapter polarity, insert the dual banana adapter into the digital multimeter DC voltage input.

2. Connect the current loop to the current source as shown in Figure 19.

0.35

seconds

+ 2.0 106 Hertz

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

DMM

Amplifier in TM

Series Power

Module

A6304XL Performance Verification

Current Source

Equipment Settings

+–

250 Turns

BNC to Dual

Banana Adapter

50  Termination

50  Coaxial

Cable

Probe

Figure 19: DC Gain Accuracy Test Setup for the A6304XL

Make or check the equipment settings in Table 32.

T able 32: Equipment Settings for DC Gain Accuracy

Digital Multimeter

Measurement DC volts

Current Source

Output Off

AM 503B and AM 5030

Coupling DC BW Limit On Current/division 500 mA/division Probe trim 000

Output

Sense

Current Flow

+–

Procedure

1. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

2. 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.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6304XL Performance Verification

3. Clamp the current probe around the current loop. Check that the arrow-

4. For each of the Amplifier current/division settings in Table 33 on page 61,

shaped indicator on the probe points away from the current source. (See Figure 19 on page 59.)

perform the following steps:5

a. Set the Amplifier to the desired current/division setting from Table 33. b. Set the current source to the correct positive test current using Table 33. c. Turn on the current source. d. Record the exact measurement of the digital multimeter as M

. (You can

copy Table 34 on page 62 to record the results of your measurements.)

e. Set the current source for the correct negative test current using Table 33. f. Record the digital multimeter reading as M g. Calculate the measured current (I

M1–M



 (currentdivision)

0.01

) using the following formula:

For example, you might have obtained values of 50 mV for M1 and 48 mV for M can compute I

(50.0x10



. If you are using an Amplifier setting of 1 A/division, you

as:

–3

) – (–48x10–3)

0.01

 1  9.80 A

h. Verify that the measured current (Im) is within ±3% of the test current (It)

by computing %Error as follows:

%Error 

Im–I

100

For example, using a test current It of 10 A and a measured current Im of

9.80 A, the %Error would be:

%Error 

9.80 – 10.0

10.0

 100  –2%

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6304XL Performance Verification

T able 33: DC Gain Accuracy Test for

Turns of Current Loop Passing Through Probe

250 500mA ±10mA 5A 250 1A ±20 mA 10 A 250 2A ±40 mA 20 A 250 5A ±100 mA 50 A 250 10A ±200mA 100A 250 20A ±400mA 200A 250 50A ±1A 500A 250 100A ±2A 1000 A 250 200A ±2A 1000 A

AM 503B and AM 5030 Current/Division

the A6304XL

Current Source Output

Test Current

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6304XL Performance Verification

T able 34: DC Gain Accuracy Test Work Sheet for the A6304XL

Turns of Current Loop Passing Through Probe

AM 503B and AM 5030 Current/Division

Current Source Output

Test Current

250 500 mA ±10 mA 5A 250 1A ±20 mA 10A 250 2A ±40 mA 20A 250 5A ±100 mA 50 A 250 10 A ±200 mA 100A 250 20 A ±400 mA 200A 250 50 A ±1A 500 A 250 100 A ±2A 1000A 250 200 A ±2A 1000A

Note A

Note B

M1–M

0.01

%Error +

(currentńdivision)

* I

100

(Note A)

%Error

(Note B)

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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. Also warm up any other test equipment used.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

Adjustment Procedures for Current Probes

AM 503B, AM 5030, and A6300 Series Verification and 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. The test equipment must meet or exceed the specifications listed. The test procedure may need to be changed if the recommended equipment is not used.

T able 35: Required Test Equipment

Qty Item Description

1 Oscilloscope 150 MHz bandwidth TDS 520B 1 Current Probe Amplifier AM 503B or AM 5030 1 Termination 50 W, BNC connector,

feedthrough

1 BNC Cable 50W , 1.05m (42in) long 012-0057-01

Recommended Equipment

01 1-0129-00

A6312, A6302 and A6302XL DC Offset Adjustment

Figure 20 shows the location of the DC offset adjustment in the lower probe half.

DC Offset

Figure 20: A6312, A6302 and A6302XL DC Offset Adjustment Location

Equipment Connections

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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 50  feedthrough termination to the oscilloscope input. Do not connect the termination at the Amplifier output.

2. Connect the current probe to the Amplifier INPUT connector.

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

Procedure

Make or verify the equipment settings in Table 36:

T able 36: Settings for DC Offset Adjustment

AM 503B and AM 5030

Coupling DC BW Limit On (20 MHz bandwidth limit) Current/division 10 mA/division

Oscilloscope

Vertical Gain 10 mV/division Time Base 1 ms/division,

Auto triggered

Input Coupling Ground

1. Move the oscilloscope trace to the center horizontal graticule line using the

vertical position control.

2. Set the oscilloscope input coupling to DC.

3. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

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 . Verify that the oscilloscope input is 50  and set to DC coupling. If necessary, use a 50  termination at the oscilloscope input.

5. If no error codes are displayed after the degauss/autobalance routine

completes, no offset adjustment is necessary. If any of the error codes listed in Table 37 are displayed, continue with the procedure.

T able 37: Error Codes Requiring DC Offset Adjustment

Error Code Meaning

580 Unable to complete negative offset adjustment 581 Unable to complete positive offset adjustment

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6312, A6302 and A6302XL Adjustment

6. Press and hold the

PROBE DEGAUSS AUTOBALANCE button. This sets the front panel

20 MHz BW LIMIT button, and while holding it, press the

display to –00 and puts the AM 503B and AM 5030 into an internal test mode.

7. Press the CURRENT/DIVISION

button until the front panel display

reads –52.

8. Press and release the 20 MHz BW LIMIT button. The Amplifier will

degauss itself; wait until the DEGAUSS light goes out.

9. Adjust the DC Offset control so that the oscilloscope trace is on the center

graticule line (zero offset), ±1 division.

10. Press and release the 20 MHz BW LIMIT button, then press and release the COUPLING button. This exits the AM 503B and AM 5030 test mode.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6312, A6302 and A6302XL Adjustment

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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.

Required Test Equipment

To perform the adjustment procedures in this section, you will need the test equipment listed in Table 38. The test equipment must meet or exceed the specifications listed. The test procedures may need to be changed if the recommended equipment is not used.

T able 38: Required Test Equipment

Qty Item Description

1 Oscilloscope 150 MHz bandwidth TDS 520B 1 Current Probe Amplifier AM 503B or AM 5030 1 Calibration Generator DC or 1 kHz square wave,

1 Current Loop 50W 015-0601-50 1 Termination 50 W, BNC connector,

2 BNC Cables 50W, 1.05 m (42in) long 012-0057-01 1 BNC T-adapter 50W 103-0030-00

into 50 W,

p-p

0.5% vertical accuracy

feedthrough

Recommended Equipment

PG 506A

01 1-0129-00

AM 503B, AM 5030, and A6300 Series Verification and 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.

HF2

DC Offset

Equipment Connections

HF3

HF1

A6303 or A6303XL

Current Probe

Figure 21: A6303 and A6303XL Adjustment Locations

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 50  feedthrough termination to the oscilloscope input. Do not connect the termination at the Amplifier output.

2. Connect the current probe to the Amplifier INPUT connector.

3. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6303 and A6303XL Adjustments

Equipment Settings

Procedure

Make or verify the equipment settings in Table 39:

T able 39: Settings for DC Offset Adjustment

AM 503B and AM 5030

Coupling DC BW Limit Off (full bandwidth) Current/division 10 mA/division

Oscilloscope

Vertical Gain 10 mV/division Time Base 1 ms/division,

Auto triggered

Input Coupling Ground

1. Move the oscilloscope trace to the center horizontal graticule line using the vertical position control.

2. Change the oscilloscope input coupling to DC.

3. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

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.

5. If no error codes are displayed after the degauss/autobalance routine completes, no offset adjustment is necessary. If any of the error codes listed in Table 40 are displayed, continue with the procedure.

T able 40: Error Codes Requiring DC Offset Adjustment

Error Code Meaning

580 Unable to complete negative offset adjustment 581 Unable to complete positive offset adjustment

6. Remove the probe access plug for the DC Offset adjust (see Figure 21).

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6303 and A6303XL Adjustments

7. Press and hold the

PROBE DEGAUSS AUTOBALANCE button. This sets the front panel

display to –00 and puts the AM 503B and AM 5030 into an internal test mode.

8. Press the CURRENT/DIVISION reads –52.

9. Press and release the 20 MHz BW LIMIT button. The Amplifier will degauss itself; wait until the DEGAUSS light goes out.

10. Adjust the DC Offset control so that the oscilloscope trace is on the center graticule line (zero offset), ±1 division.

11. 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.

20 MHz BW LIMIT button, and while holding it, press the

button until the front panel display

A6303 and A6303XL Transient Response and Gain Adjustment

This procedure describes how to optimize the transient response and gain of the A6303 and A6303XL using adjustments HF1, HF2, and HF3. Refer to figures 21 and 22 when performing this procedure.

Equipment Connections

NOTE. The A6303XL has only a single adjustment located at the HF2 position.

1. Connect the calibration generator output to a 50  oscilloscope input using a 50  BNC cable. If the input impedance of your oscilloscope is 1 M, connect a 50  feedthrough termination to the oscilloscope input. Do not connect the termination to the calibration generator output.

2. Connect the current probe to the Amplifier INPUT connector.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6303 and A6303XL Adjustments

Equipment Settings

Amplifier in TM

T est Oscilloscope

50 W Input

Series Power

Module

Figure 22: A6303 and A6303XL Adjustment Setup

Make or verify the equipment settings in Table 41:

Calibration

Generator

High

Amplitude

Output

Current Loop

A6303/A6303XL Probe

Procedure

T able 41: Settings for Transient Response and Gain Adjustments

AM 503B and AM 5030

Coupling DC BW Limit Off (full bandwidth) Current/division 20 mA/division

Oscilloscope

Vertical Gain 1 V/division Time Base 100 ms/division,

Auto triggered

Input Coupling Ground

Calibration Generator

Period 0.1 ms Function High amplitude

1. Move the oscilloscope trace up one graticule line from the bottom of the

screen.

2. Change the oscilloscope input coupling to DC.

3. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6303 and A6303XL Adjustments

4. Press the Amplifier PROBE DEGAUSS AUTOBALANCE button. Wait

5. Adjust the calibration generator to produce an amplitude of five graticule

NOTE. Do not adjust the calibration generator amplitude for the remainder of this procedure.

6. Disconnect the BNC cable from the calibration generator and attach it to the

for the degauss/autobalance routine to complete before proceeding. The routine is complete when the indicator light turns off.

divisions (5 volts).

Amplifier OUTPUT connector (see Figure 22 on page 73).

7. Attach the current loop to the probe and lock the probe.

8. Connect the current loop to the calibration generator output using another

coaxial cable.

9. Reset the vertical gain of the oscilloscope to 10 mV/division and the time base to 100 ms/division.

10. Reset the period of the calibration generator to 1 ms.

11. Remove the probe access plugs for HF1, HF2, and HF3. Remove the HF2

plug only for the A6303 (see Figure 21 on page 70).

12. Adjust the probe for optimum performance:

H A6303: Adjust HF1, HF2, and HF3 for an oscilloscope display of five

divisions and optimum transient response.

H A6303XL: Adjust only HF2 for an oscilloscope display of five divisions and

optimum transient response. The A6303XL does not have controls in the HF1 and HF3 positions.

NOTE. The HF1, HF2, and HF3 adjustments on the A6303 interact. Adjusting them can be a repetitive process. You may need to balance between transient response and gain in order to meet both specifications at once.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6304XL Adjustments

Each of the following adjustment procedures describes how to adjust specific performance characteristics of the A6304XL. Tolerances that are specified in these procedures apply to the current probe and do not include test equipment error.

Required Test Equipment

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.

Perform the steps on page 63 before starting these procedures. Also, read each procedure through completely before starting to ensure proper completion.

T able 42: Required Test Equipment

Qty Item Description

1 Oscilloscope 20 MHz bandwidth Tektronix TDS 520B

Recommended Example

1 Current Probe

Amplifier

1 Calibration Generator Square wave with a rise time <35 ns,

5 A into 50 

1 Digital Multimeter 0.25% 31/2 digit resolution

at ± 50 mV

1 Current Source 0.3% accuracy, 0 to ±2 A Fluke 5700A or

1 Current Loop 250 turns 067-0240-00 1 Termination 50  ±0.1%, 0.5 W 01 1-0129-00 3 BNC Cables 50 , 1.05m (42in) long 012-0057-01 1 BNC to Dual

Banana Adapter

AVTECH Electrosystems Ltd. P.O. Box 265, Ogdensburg NY 13669-0265 (315) 472-5270 or (800) 265-6681

AM 503B or AM 5030

AVTECH AVR-3-PW-C-P-TEK2

DM2510/G or Fluke 850x/884x

Wavetek 9100 with Option 250

103-0090-00

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6304XL Adjustments

A6304XL DC Offset Adjustment

This procedure details how to adjust the A6304XL offset.

Equipment Connections

Equipment Settings

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 50  feedthrough termination to the oscilloscope input. Do not connect the termination at the Amplifier output.

2. Connect the current probe to the Amplifier INPUT connector.

3. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

Make or verify the equipment settings in Table 43:

T able 43: Settings for DC Offset Adjustment

AM 503B and AM 5030

Coupling DC BW Limit Off (full bandwidth) Current/division 1 A/division

Oscilloscope

Vertical Gain 10 mV/division Time Base 1 ms/division,

Auto triggered

Input Coupling Ground

Procedure

1. Move the oscilloscope trace to the center horizontal graticule line using the vertical position control.

2. Change the oscilloscope input coupling to DC.

3. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

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.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

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.

T able 44: Error Codes Requiring DC Offset Adjustment

Error Code Meaning

580 Unable to complete negative offset adjustment 581 Unable to complete positive offset adjustment

7. Remove the probe access plug for the DC Offset adjust (see Figure 23).

DC Offset

10 s

DC Gain

1 s

A6304XL

Current Probe

Figure 23: A6304XL Adjustment Locations

8. Press and hold the

PROBE DEGAUSS AUTOBALANCE button. This sets the front panel

20 MHz BW LIMIT button, and while holding it, press the

display to –00 and puts the AM 503B and AM 5030 into an internal test mode.

9. Press the CURRENT/DIVISION

button until the front panel display

reads –52.

10. Press and release the 20 MHz BW LIMIT button. The Amplifier will

degauss the probe; wait until the DEGAUSS light goes out.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6304XL Adjustments

DC Gain Adjustment

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.

This procedure adjusts the DC gain accuracy of the A6304XL probe.

CAUTION. This test produces magnetic fields that may cause a malfunction in normally operating heart pacemakers 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.

Equipment Settings

Equipment Connections

Make or check the equipment settings in Table 45:

T able 45: Equipment Settings for DC Gain Accuracy

Digital Multimeter

Measurement Type DC volts

Current Source

Output Off

AM 503B and AM 5030

Coupling DC BW Limit On Current/division 10 A/division Probe trim 000

2. Connect the current loop to the current source as shown in Figure 24.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

DMM

Amplifier in TM

Series Power

Module

A6304XL Adjustments

Current Source

Procedure

BNC to Dual

Banana Adapter

50  Termination

50  Coaxial

Cable

Output

+–

250 Turns

Probe

Current Flow

+–

Figure 24: DC Gain Accuracy Adjustment Setup

1. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

2. 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.

3. If necessary, adjust DC LEVEL on the amplifier for a zero reading on the

DMM.

4. Clamp the current probe around the current loop. (See Figure 24.) Check that

the arrow-shaped indicator on the probe points away from the current source.

5. Adjust the current output of the power supply to 200 mA.

6. The DMM reading should be 50 mV. If you could not set your current source

to exactly 200 mA, use the formula below:

DMM voltage reading 

current source reading  250 turns

10 Amps/divisio n

7. If the reading is not correct, adjust DC GAIN on the A6304XL for a correct

reading on the DMM. See Figure 23 on page 77.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

 10 mV/ div isi on

A6304XL Adjustments

A6304XL Transient Response Adjustment

This procedure describes how to optimize the transient response of the A6304XL using the 10 ms and 1 ms adjustments. Refer to figures 23 and 25 when performing this procedure.

Equipment Connections

Equipment Settings

1. Connect the Amplifier output to a 50 W oscilloscope input using a 50 W BNC cable. If the input impedance of your oscilloscope is 1 MW, connect a 50 W feedthrough termination to the oscilloscope input.

2. Connect the current probe to the Amplifier INPUT connector.

Test Oscilloscope

50 W Input

Amplifier in TM

Series Power

Module

Current

Probe

Calibration

Generator

Output Loop

Figure 25: A6304XL Adjustment Setup

Make or verify the equipment settings in Table 46:

T able 46: Equipment Settings for Transient Response

Oscilloscope

Vertical input impedance 50 W Vertical gain 10 mV/division Time base 100 ms/division Record length 500 Coupling DC Offset 0 V (mid-scale) Trigger type Edge Trigger mode Normal Trigger position 50% Acquisition mode Average Number of waveforms to average 8 Measurement type Rise Time

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

T able 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 DC BW Limit Off Current/division 1 A/division

A6304XL Adjustments

Procedure

1. Move the oscilloscope trace to one graticule line from the bottom of the

screen.

2. Set the oscilloscope input coupling to DC.

3. Do not clamp the current probe around any conductor, but make sure the

jaws are locked shut.

4. Remove the probe access plugs for 1 ms, 10 ms, and DC Gain.

5. 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.

6. Lock the jaws of the probe around the calibrator current loop.

7. Adjust the oscilloscope to view the 100 ms portion of the pulse.

8. Adjust the calibration generator to produce an amplitude of five graticule

divisions (5 amps) at the 100 ms portion of the pulse.

NOTE. Do not adjust the calibration generator amplitude for the remainder of this procedure.

9. Adjust the 10 s control for a flat waveform to match the level at the 100 ms

point.

10. Adjust the oscilloscope sweep to 1 ms/div.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

A6304XL Adjustments

11. Adjust the 1 s control to flatten the front end of the pulse.

NOTE. The 10 ms and 1 ms 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.

12. Disconnect the probe from the calibration generator current loop.

13. Verify the DC Gain Accuracy using the procedure on page 78.

AM 503B, AM 5030, and A6300 Series Verification and Adjustment

Tektronix AM5030, A6312, A6303, A6303XL User manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Instructions

Table of Contents

General Safety Summary

Injury Precautions

Product Damage Precautions

Safety Terms and Symbols

Certifications and Compliances

Service Safety Summary

Kit Description

Kit Parts List

Equipment Required

AM 503B and AM 5030 Performance Verification

Test Procedure Conditions

DC Gain Accuracy

DC Balance

RMS Noise

Bandwidth

Degauss

GPIB Installation

Assemble GPIB Test Fixture

Remove Side Covers

Install GPIB Test Fixture

AM 503B and AM 5030 Adjustments

Amplifier Setup

Calculate and Load New Calibration Constants

GPIB Removal (AM 503B Only)

Performance Verification Setup for Current Probes

Test Procedure Conditions

Equipment Preparation

Warranted Specifications

A6312 Performance Verification

Required Test Equipment

Bandwidth

Rise Time

DC Gain Accuracy

A6302 and A6302XL Performance Verification

Required Test Equipment

Bandwidth

Rise Time

DC Gain Accuracy

A6303 and A6303XL Performance Verification

Required Test Equipment

Bandwidth

Rise Time

DC Gain Accuracy

A6304XL Performance Verification

Required Test Equipment

Rise Time

Bandwidth

DC Gain Accuracy

Adjustment Procedures for Current Probes

A6312, A6302 and A6302XL Adjustment

Required Test Equipment

A6312, A6302 and A6302XL DC Offset Adjustment

A6303 and A6303XL Adjustments

Required Test Equipment

A6303 and A6303XL DC Offset Adjustment

A6303 and A6303XL Transient Response and Gain Adjustment

A6304XL Adjustments

Required Test Equipment

A6304XL DC Offset Adjustment

DC Gain Adjustment

A6304XL Transient Response Adjustment