Tektronix A6302XL, A6302 Service Manual

Instructions

A6302 & A6302XL

20 Ampere AC/DC Current Probes

070-3905-04

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.

Copyright Tektronix, Inc. All rights reserved.

Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved.

Printed in the U.S.A.

Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070±1000

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

WARRANTY

Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of one (1) year from the date of shipment. If a product proves defective during this warranty period, Tektronix, at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective product.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for packaging and shipping the defective product to the service center designated by Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting from attempts by personnel other than Tektronix representatives to install, repair or service the product; b) to repair damage resulting from improper use or connection to incompatible equipment; c) to repair any damage or malfunction caused by the use of non-Tektronix supplies; or d) to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX' RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

Service Assurance

If you have not already purchased Service Assurance for this product, you may do so at any time during the product's warranty period. Service Assurance provides Repair Protection and Calibration Services to meet your needs.

Repair Protection extends priority repair services beyond the product's warranty period; you may purchase up to three years of Repair Protection.

Calibration Services provide annual calibration of your product, standards compliance and required audit documentation, recall assurance, and reminder notification of scheduled calibration. Coverage begins upon registration; you may purchase up to five years of Calibration Services.

Service Assurance Advantages

Priced well below the cost of a single repair or calibration

Avoid delays for service by eliminating the need for separate purchase authorizations from your company

Eliminates unexpected service expenses

For Information and Ordering

For more information or to order Service Assurance, contact your Tektronix representative and provide the information below. Service Assurance may not be available in locations outside the United States of America.

Name	VISA or Master Card number and expiration
Company	date or purchase order number
Address	Repair Protection (1,2, or 3 years)
City, State, Postal code	Calibration Services (1,2,3,4, or 5 years)
Country	Instrument model and serial number
Phone	Instrument purchase date

Table of Contents
General Safety Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	iii
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	1
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	1
Probe Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2
Operating the Current Probe Slide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	3
Degaussing and Autobalancing the Current Probe . . . . . . . . . . . . . . . . . . . . . . .	4
Probe Trim Adjust for Gain Accuracy (AM 503B and AM 5030 Only) . . . . . . .	4
Maximum Current Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	5
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	12
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	12
Disassembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	12
Obtaining Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	17
Preparation for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	17
Replaceable Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	18
Parts Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	18
Using the Replaceable Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	18

A6302 and A6302XL Instructions

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Contents

List of Figures

Figure 1: Connecting a current probe to the current probe amplifier	2
Figure 2: Operating the probe slide . . . . . . . . . . . . . . . . . . . . . . . . . . . .	3
Figure 3: Applying the amp-second product rule . . . . . . . . . . . . . . . . .	6
Figure 4: A6302 and A6302XL specified operating area . . . . . . . . . . .	9
Figure 5: A6302 and A6302XL frequency derating curve for maximum
input current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	9
Figure 6: A6302 and A6302XL insertion impedance curve . . . . . . . . .	10
Figure 7: Probe jaw dimensions (nominal) . . . . . . . . . . . . . . . . . . . . .	10
Figure 8: Removing the strain relief boot . . . . . . . . . . . . . . . . . . . . . . .	13
Figure 9: Removing the top half of the probe . . . . . . . . . . . . . . . . . . . .	14
Figure 10: Removing the probe slide . . . . . . . . . . . . . . . . . . . . . . . . . . .	14
Figure 11: Removing the current transformer and cable assembly of the
A6302 probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	15
Figure 12: Removing the current transformer of the A6302XL probe	16
Figure 13: A6302 exploded view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	21
Figure 14: A6302XL exploded view . . . . . . . . . . . . . . . . . . . . . . . . . . . .	23

List of Tables

Table 1: Warranted A6302 and A6302XL specifications . . . . . . . . . .	8
Table 2: Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8
Table 3: Mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . .	10
Table 4: Environmental characteristics . . . . . . . . . . . . . . . . . . . . . . . .	11
Table 5: Certifications and compliances . . . . . . . . . . . . . . . . . . . . . . . .	11

ii	A6302 and A6302XL Instructions

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.
Injury Precautions	Avoid Electric Overload. To avoid electric shock or fire hazard, do not apply a
	voltage to a terminal that is outside the range specified for that terminal.
	Avoid Electric Shock. To avoid injury or loss of life, do not connect or disconnect
	probes or test leads while they are connected to a voltage source.
	Ground the Product. This product is indirectly grounded through the grounding
	conductor of the mainframe 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.
	Do Not Operate in Wet/Damp Conditions. To avoid electric shock, do not operate
	this product in wet or damp conditions.
	Do Not Operate in an Explosive Atmosphere. To avoid injury or fire hazard, do not
	operate this product in an explosive atmosphere.
Product Damage	Do Not Operate With Suspected Failures. If you suspect there is damage to this
Precautions	product, have it inspected by qualified service personnel.
	Do Not Immerse in Liquids. Clean the probe using only a damp cloth. Refer to
	cleaning instructions.

A6302 and A6302XL Instructions

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General Safety Summary

Symbols and Terms 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.

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

Terms on the Product. 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.

Symbols on the Product. The following symbols may appear on the product:

Certifications and

Compliances

DANGER	Protective Ground	ATTENTION	Double
High Voltage	(Earth) Terminal	Refer to Manual	Insulated

Refer to the specifications section for a listing of certifications and compliances that apply to this product.

iv	A6302 and A6302XL Instructions

Preface

This instruction manual supports the operation and maintenance of the A6302 and A6302XL current probes with any of the AM 503 series current probe amplifiers.

You can find additional documentation supporting the operation and maintenance of the AM 503 series amplifiers in the following manuals:

AM 503 Instruction Manual (070-2052-XX)

AM 503S (AM 503A) User Manual (070-8170-XX)

AM 503S (AM 503A) Service Manual (070-8174-XX)

AM 503B & AM 5030 Instruction Manual (070-8766-XX)

A6302 and A6302XL Instructions

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Preface

vi	A6302 and A6302XL Instructions

Getting Started

This section explains how to install and operate the A6302 and A6302XL current probes.

Product Description

The A6302 is a DC to 50 MHz current probe designed for use with the AM 503 family of current probe amplifiers and with the 11A16 plug-in. With the AM 503 family, the A6302 can measure currents to 20 A (DC + peak AC), and up to 50 A peak current (while not exceeding the amp-second rating). With the 11A16 plug-in, the A6302 can measure currents to 10.5 A.

The A6302XL is an extended length cable version of the A6302. It offers the same current range as the A6302 with a diminished frequency range of DC to 17 MHz. The A6302XL can only be used with the AM 503B and AM 5030, and will not be recognized by other current probe amplifiers.

The probe performance specifications, verification, and adjustment are unique to the amplifier that the probe is plugged into. Please refer to the amplifier documentation for specifications and verification procedures.

A6302 and A6302XL Instructions

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