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HI-3624 / HI-3624A

ELF Magnetic Field Meter

User's Manual

Copyright

©

1991 Holaday Ind. Inc.

Manual #600044 04/91

$8.50

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Содержание HI-3624

Страница 1: ...HI 3624 HI 3624A ELF Magnetic Field Meter User s Manual Copyright 1991 Holaday Ind Inc Manual 600044 04 91 8 50...

Страница 2: ......

Страница 3: ...Revision Record Manual 600044 HI 3624 HI 3624A ELF Magnetic Field Meter Revision Description Date Release 4 91 A Added CE label updated 1 00...

Страница 4: ......

Страница 5: ...TABLE OF CONTENTS Description 1 Specifications 3 Operation 5 Example Applications 9 Power Lines 9 VDTs 10 Residential 11 References 13...

Страница 6: ......

Страница 7: ...IMATE WILL BE PROVIDED BEFORE WORK IS STARTED IF REQUESTED BY THE PURCHASER FOR WARRANTY SERVICE CONTACT HOLADAY INDUSTRIES INC GIVING FULL DETAILS OF THE FAILURE AND THE SERIAL NUMBER OF THE INSTRUME...

Страница 8: ......

Страница 9: ...a multiturn loop connected to the instrumentation readout package via a one meter long cable The separate loop sensor provides for orientation of the sensor relative to the various magnetic field pola...

Страница 10: ...Page 2 HI 3624 HI 3624A Manual Model HI 3624 ELF Magnetic Field Meter...

Страница 11: ...ecade Note This frequency switchable to 5 Hz on HI 3624A see figure 1 Sensor External multi turn loop with inside diameter of 110 mm and outside diameter of 116 mm area of loop is 0 010 square meters...

Страница 12: ...air of Helmholtz coils for establishing an accurately known magnetic field flux density A precisely controlled and measured sinusoidal current is driven through the Helmholtz coils and based on the di...

Страница 13: ...s achieved when the meter reads approximately midscale At each range setting while holding the meter in one hand rotate the sensor with the other hand so as to obtain a maximum indication on the meter...

Страница 14: ...Page 6 HI 3624 HI 3624A Manual B Bx 2 By 2 Bz 2 1 2 where B resultant flux density Bx Reading in the X direction By Reading in the y direction Bz Reading in the Z direction...

Страница 15: ...DT measurements but alternative distances may also be used In the case of the Model HI 3624A the user may select the lower frequency of the band pass for the instrument as either 30 Hz the value incor...

Страница 16: ...include frequency components greater than 5 Hz Consequently during such movement the meter will typically show significant upscale indications The 5 Hz frequency cutoff setting is primarily useful fo...

Страница 17: ...ings every five to ten feet and orient the sensor for maximum reading A magnetic field flux density profile can then be developed This method is outlined by the Institute of Electrical and Electronics...

Страница 18: ...m the front surface of the screen Additional measurements may be taken relative to the sides the top and the back of the VDT to explore the distribution of the fields about the VDT The second method i...

Страница 19: ...This avoids to an extent placing the sensor immediately next to wiring which may be hidden within the walls of the room and which may yield unrealistically high values of flux density compared to what...

Страница 20: ...rth currents via plumbing lines or telephone cables buried beneath the home In some cases it has been noted that 60 Hz magnetic fields exist within a home even when the home is not using any electrica...

Страница 21: ...4 1987 Published by The Institute of Electrical and Electronics Engineers Inc 345 East 47th Street New York NY 10017 Approved November 17 1986 2 Swedish National Board for Measurement and Testing Test...

Страница 22: ...Page 14 HI 3624 HI 3624A Manual NOTES...

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