F.W. Bell 4180, 4190 Instruction Manual

Manual UN-01-263
Rev. F

OECO, LLC
All rights reserved.

4100 Series

ELF Gauss/Tesla Meter

Instruction Manual

INTRODUCTION

Table of Contents

SECTION-1 INTRODUCTION

Understanding Flux Density............................................... 1-1

General Operating Instructions.......................................... 1-2

SECTION-2 SPECIFICATIONS

Meter Specifications.......................................................... 2-1

SECTION-3 OPERATING INSTRUCTIONS

Keypad layout and functions.............................................. 3-1

Meter Ports………............................................................. 3-3

Display Layout…............................................................... 3-3

Advanced Measurements.................................................... 3-3

SECTION-4 SOFTWARE AND USB PORT

Introduction…………………............................................... 4-1

Connecting the 4100 Series to a PC ……………………… 4-2

WARRANTY.......................................................................

5-1

INTRODUCTION

Environmental Considerations

End-of-Life Handling of Product

This equipment may contain substances which could be harmful to the environment or
human health if not disposed of properly when it has reached the end of its useful life. We
encourage you to recycle this product through a system which will ensure recycling of most
of the materials in an appropriate manner.

The crossed out wheeled trash bin symbol indicates compliance with the European Union
Directives 2012/19/EU and 2006/66/EC on Waste Electrical and Electronic Equipment
(WEEE) and batteries.

For information on recycling options please check the Meggitt Sensing Systems Recycling
website:

http://www.meggittsensingsystems.com/WEEE/recycling/index.html

RoHS Compliance

The 4100 Series Gaussmeters and probes meet the RoHS 2011/65/EU Directive on the
Reduction of Hazardous Substances.

Section 1

Introduction

UNDERSTANDING FLUX DENSITY

Magnetic fields surrounding permanent magnets or electrical conductors can be visualized as a collection of
magnetic flux lines; lines of force existing in the material that is being subjected to a magnetizing influence.
Unlike light, which travels away from its source indefinitely, magnetic flux lines must eventually return to the
source. Thus all magnetic sources are said to have two poles. Flux lines are said to emanate from the “north”
pole and return to the “south” pole, as depicted in Figure 1-1.

Figure 1-1

Flux Lines of a Permanent Magnet

One line of flux in the CGS measurement system is called a maxwell (M), but the weber (W), which is 10
lines, is more commonly used.

Flux density, also called magnetic induction, is the number of flux lines passing through a given area. It is
commonly assigned the symbol “B” in scientific documents. In the CGS system a gauss (G) is one line of flux
passing through a 1 cm

The more commonly used term is the tesla (T), which is 10,000 lines per cm

Magnetic field strength is a measure of force produced by an electric current or a permanent magnet. It is the
ability to induce a magnetic field “B”. It is commonly assigned the symbol “H” in scientific documents. The unit
of “H” in the CGS system is an oersted (Oe), but the ampere-meter (Am) is more commonly used. The
relationship is

It is important to know that magnetic field strength and magnetic flux density are not
strength deals with the physical characteristics of magnetic materials whereas flux density does not. The only
time the two are considered equal is in free space (air). Only in free space is the following relationship true:

2

area.

1 tesla = 10,000 gauss
1 gauss = 0.0001 tesla

1 oersted = 79.6 ampere-meter

1 ampere-meter = 0.01256 oersted

1 G = 1 Oe = 0.0001 T = 79.6 Am

2

. Thus

the same. Magnetic field

8

1-1