ETS-Lindgren 7604 User Manual
Model 7604
Magnetic Field Pickup Coil
User Manual
ETS-Lindgren L.P. reserves the right to make changes to any product described
herein in order to improve function, design, or for any other reason. Nothing
contained herein shall constitute ETS-Lindgren L.P. assuming any liability
whatsoever arising out of the application or use of any product or circuit
described herein. ETS-Lindgren L.P. does not convey any license under its
patent rights or the rights of others.
© Copyright 1991–2010 by ETS-Lindgren L.P. All Rights Reserved. No part
of this document may be copied by any means without written permission
from ETS-Lindgren L.P.
Trademarks used in this document: The ETS-Lindgren logo is a trademark of
ETS-Lindgren L.P.
Revision Record | MANUAL 7604 | Part #399063, Rev. E
Revision Description Date
A Initial Release February, 1991
B
C
D
E Rebrand July, 2010
ii |
Edits/updates
Edits/updates
Edits/updates
April, 1999
Table of Contents
Notes, Cautions, and Warnings ................................................ v
1.0 Introduction .......................................................................... 7
References .................................................................................................... 7
ETS-Lindgren Product Information Bulletin ................................................... 8
2.0 Maintenance ......................................................................... 9
Annual Calibration ......................................................................................... 9
Service Procedures ....................................................................................... 9
3.0 Specifications ..................................................................... 11
Electrical Specifications ............................................................................... 11
Physical Specifications ................................................................................ 11
4.0 Operation ............................................................................ 13
Graph of Conversion Factors ....................................................................... 14
Table of Conversion Factors ........................................................................ 16
Example ............................................................................................... 16
5.0 Theory of Operation ........................................................... 17
Equation (1) ......................................................................................... 17
Equation (2) ......................................................................................... 17
Equation (3) ......................................................................................... 18
Equation (4) ......................................................................................... 18
Equation (5) ......................................................................................... 18
Appendix A: Warranty ............................................................. 19
Appendix B: Derivation of General Equation ........................ 21
Equation (A1) ....................................................................................... 21
Equation (A2) ....................................................................................... 21
Equation (A3) ....................................................................................... 21
Equation (A4) ....................................................................................... 22
Equation (A5) ....................................................................................... 22
Equation (A6) ....................................................................................... 22
Appendix C: Abbreviations, Symbols, Units ......................... 23
U.S. National Standard and SI Abbreviations and Symbols ................ 23
List of Equivalent SI Magnetic Units and Obsolete Units .................... 24
| iii
Appendix D: Performance, Theory, Measurement ............... 25
iv |
Notes, Cautions, and Warnings
Note: Denotes helpful information intended to
See the ETS-Lindgren Product Information Bulletin for safety,
regulatory, and other product marking information.
provide tips for better use of the product.
Caution: Denotes a hazard. Failure to follow
instructions could result in minor personal injury
and/or property damage. Included text gives proper
procedures.
Warning: Denotes a hazard. Failure to follow
instructions could result in SEVERE personal injury
and/or property damage. Included text gives proper
procedures.
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vi |
1.0 Introduction
A number enclosed in a square bracket corresponds to the numbered
item in References.
The ETS-Lindgren Model 7604 Magnetic Field Pickup Coil is designed to
measure magnetic emissions to the specification limits in MIL-STD-461 [1] in
accordance with MIL-STD-462 [2], Method RE01. The design was originally
specified in MIL-STD-461A [3] and is also used in tests for compliance to other
specifications [4] and standards. The Model 7604 is normally connected to an
EMI meter for the range 20 Hz to over 500 kHz.
The international system of units (SI) is used throughout this manual. See
Appendix C on page 23 for the standard abbreviations, symbols, units, and their
equivalents.
References
[1] MlL-STD-461 (MIL-STD-461C), Military Standard Electromagnetic
Emission and Susceptibility Requirements for the Control of
Electromagnetic Interference, Department of Defense, 4 Aug 1986.
[2] MlL-STD-462, Military Standard Electromagnetic Interference
Characteristics, Measurement of, Department of Defense, 31 Jul 1967.
(with change notices 1 through 6, dated from 1 Aug 68 to 15 Oct 87).
[3] MIL-STD-461A, Military Standard Electromagnetic Interference
Characteristics Requirements for Equipment, Department of Defense,
1 Aug 1968, pp 8 and 17.
[4] Draft Space Station Electromagnetic Emission and Susceptibility
Requirements for Electromagnetic Compatibility, January 8, 1990.
[5] Bronaugh, E.L., and W.S. Lambdin, Electromagnetic Interference Test
Methodology and Procedures, Vol 6 of A Handbook Series on
Electromagnetic Interference and Compatibility, Interference Control
Technologies, Inc., Gainesville, VA 22065, 1988, pp 4.22 and 11.2.
Introduction | 7
[6] ANSI/IEEE Std 268-1982, American National Standard Metric Practice.
[7] ANSI/IEEE Std 260-1978, Standard Letter Symbols for Units of
Measurement, (reaffirmed 1985).
ETS-Lindgren Product Information Bulletin
See the ETS-Lindgren Product Information Bulletin included with your shipment
for the following:
• Warranty information
• Safety, regulatory, and other product marking information
• Steps to receive your shipment
• Steps to return a component for service
• ETS-Lindgren calibration service
• ETS-Lindgren contact information
8 | Introduction
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