F.W. Bell 8000 series User manual

8000SERIESGAUSS/TESLAMETER
Instruction
Manual

THIS SIDE BLANK !
(Inside of Front Cover)

8000 Series
GAUSS / TESLA METER
Instruction Manual
Manual UN-01-270
Rev. B
February, 2017
Applicable System Firmware Release 1.6.2
All Rights Reserved.

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 8000 Series Gaussmeters and probes meet the RoHS 2011/65/EU
Directive on the Reduction of Hazardous Substances.

This symbol appears on the instrument and probe. It refers the
operator to additional information contained in this instruction
manual, also identified by the same symbol.
NOTICE:
See Pages 4-1, 4-2, and 4-3 for SAFETY
instructions prior to first use!
See Page 2-4 for EMC Notes concerning I/O
Cables and I/O Filter Adapters

F.W. BELL 8000 Series Gauss/Tesla Meter Instruction Manual
i
TABLE OF CONTENTS
TABLE OF CONTENTS...................................................................................................i
LIST OF TABLES..........................................................................................................iv
LIST OF ILLUSTRATIONS.............................................................................................v
SECTION 1 Introduction ............................................................................................1-1
Overview................................................................................................................... 1-1
General Description .................................................................................................. 1-3
Applications ..............................................................................................................1-8
SECTION 2 Specifications.........................................................................................2-1
Meter Specifications .................................................................................................2-1
Communications.......................................................................................................2-4
Regulatory Information .............................................................................................2-5
Calibration Service.................................................................................................... 2-5
Zero Flux Chambers ................................................................................................. 2-6
SECTION 3 Probes.....................................................................................................3-1
Overview................................................................................................................... 3-1
Probe Variations .......................................................................................................3-2
Probe ........................................................................................................................3-3
Memory.....................................................................................................................3-3
Probe Stem............................................................................................................... 3-3
Temperature Effects .................................................................................................3-3
Fixturing....................................................................................................................3-3
8000 Series Probes .................................................................................................. 3-4
SECTION 4 Setup .......................................................................................................4-1
Safety Instructions ....................................................................................................4-1
Line Voltage Settings / Fuse Panel........................................................................... 4-3
Adjusting the Handle & Feet .....................................................................................4-4
Probe Installation / Removal..................................................................................... 4-5
Power-Up..................................................................................................................4-6
SECTION 5 User Interface .........................................................................................5-1
Overview................................................................................................................... 5-1
Front Panel Keypad .................................................................................................. 5-2
Menu System............................................................................................................ 5-3
Display System Information ..................................................................................5-6
User Setup Save and Recall .................................................................................5-6
Setting the Date and Time .................................................................................... 5-8
Display Errors........................................................................................................5-9
Power On Options.................................................................................................5-9

F.W. BELL 8000 Series Gauss/Tesla Meter Instruction Manual
ii
SECTION 6 Flux Density Measurement....................................................................6-1
Overview................................................................................................................... 6-1
Measurement Units................................................................................................... 6-2
Flux Density Reading................................................................................................ 6-3
Measurement Range Selection ................................................................................6-3
Measurement Mode Selections ................................................................................6-4
DC Mode Operation .............................................................................................. 6-5
AC Mode Operation ..............................................................................................6-5
Zeroing .....................................................................................................................6-8
Display Update Interval........................................................................................... 6-12
Hold Function .........................................................................................................6-13
Relative Mode......................................................................................................... 6-15
Vector Summation .................................................................................................. 6-18
Analog Outputs.......................................................................................................6-21
Classifier Outputs ................................................................................................... 6-24
Sources of Measurement Error............................................................................... 6-25
SECTION 7 AC Waveform Display............................................................................7-1
Introduction............................................................................................................... 7-1
AC Waveform Display Graphical Layout...................................................................7-1
Accessing the AC Waveform Display .......................................................................7-2
Setting the Time Base ..............................................................................................7-2
Setting the Vertical Scale..........................................................................................7-3
Trigger Operation...................................................................................................... 7-4
Trigger Channel Selection.....................................................................................7-5
Trigger Modes.......................................................................................................7-5
Free Run ........................................................................................................... 7-5
Auto ...................................................................................................................7-5
Repeat...............................................................................................................7-5
Single ................................................................................................................7-5
Trigger Slope.........................................................................................................7-6
Trigger Level .........................................................................................................7-6
SECTION 8 Remote Operation ..................................................................................8-1
Introduction............................................................................................................... 8-1
Communications Ports..............................................................................................8-2
RS-232 Port .......................................................................................................... 8-2
Functional Description ....................................................................................... 8-2
Configuration ..................................................................................................... 8-3
Ethernet Port.........................................................................................................8-4
Functional Description ....................................................................................... 8-4
Configuration ..................................................................................................... 8-5
Accessing the System with TELENET Client.....................................................8-6
Internal Web Application .......................................................................................8-7
Accessing the Internal Web Application ............................................................ 8-7
Functional Description ....................................................................................... 8-8
IEEE-488 (GPIB) BUS ........................................................................................ 8-10

F.W. BELL 8000 Series Gauss/Tesla Meter Instruction Manual
iii
Functional Description ..................................................................................... 8-10
Implementation ................................................................................................ 8-11
Configuration ................................................................................................... 8-12
Status Registers and Error Queue.......................................................................... 8-13
Status Registers.................................................................................................. 8-13
Status Byte and Service Request (SRQ) ............................................................ 8-14
Error Queue ........................................................................................................8-15
Standard Event Register ..................................................................................... 8-16
Measurement Event Register.............................................................................. 8-16
Operation Event Register.................................................................................... 8-17
Questionable Event Register .............................................................................. 8-17
Remote SCPI Commands ...................................................................................... 8-18
IEEE - 488.2 “Common” Command Syntax ........................................................ 8-18
IEEE-488.2 “Common” Command Descriptions.................................................. 8-19
SCPI Command Syntax ...................................................................................... 8-22
SCPI Message Terminators ................................................................................ 8-23
SCPI Meter Specific Commands......................................................................... 8-23
SCPI Command Descriptions ............................................................................. 8-27
SECTION 9 Data Logging Utilities.............................................................................9-1
Overview................................................................................................................... 9-1
Logging Data ............................................................................................................ 9-2
Logging to USB Drive............................................................................................9-2
Logging to Internal Drive .......................................................................................9-2
Screen Capture ........................................................................................................ 9-3
SECTION 10 Firmware Update ................................................................................10-1
Overview................................................................................................................. 10-1
Firmware Update Procedure................................................................................... 10-1
Preparing the USB Drive for Update ................................................................... 10-1
APPENDIX A Understanding Flux Density.......................................................... A-1
Measurement of Flux Density ...................................................................................A-2
APPENDIX B Vector Summation Tutorial............................................................ B-1
APPENDIX C Error Codes..................................................................................... C-1
APPENDIX D WARRANTY .................................................................................... D-1

F.W. BELL 8000 Series Gauss/Tesla Meter Instruction Manual
iv
LIST OF TABLES
Table 1-1 8000 Series Gauss/Tesla Meter List of Features ......................................1-2
Table 1-2 Front Panel Description.............................................................................1-6
Table 1-3 Rear Panel Description .............................................................................1-7
Table 2-1 Ranges for Low Field Probes ....................................................................2-1
Table 2-2 Ranges for Mid Field Probes.....................................................................2-1
Table 2-3 Ranges for High Field Probes ...................................................................2-1
Table 2-4 Accuracies at 23˚C ±2C˚(Meter Only) ...................................................... 2-3
Table 2-5 Classifier Connections .............................................................................. 2-4
Table 3-1 Probe Maximum Field Levels and Resolutions .........................................3-2
Table 5-1 Menu Key Operation Descriptions.............................................................5-3
Table 5-3 Default Configuration Settings................................................................... 5-7
Table 5-4 12-hour to 24-hour Conversion Chart........................................................5-8
Table 6-1 Available Units .......................................................................................... 6-2
Table 6-2 Minimum Magnitudes for Rated AC Accuracy...........................................6-6
Table 6-3 AC Mode Analog Filter Selections.............................................................6-7
Table 6-4 Estimated Zeroing Times ..........................................................................6-9
Table 6-5 Update Interval Settings .......................................................................... 6-12
Table 7-1 Time Base Selections for AC Filter Settings..............................................7-3
Table 8-1 RS-232 Port Settings ................................................................................ 8-4
Table 8-2 Common Command Summary................................................................ 8-19
Table 8-3 SCPI Error Queue Commands................................................................ 8-24
Table 8-4 SCPI System Information and Configuration Commands ....................... 8-24
Table 8-5 SCPI Status Register Commands ........................................................... 8-24
Table 8-6 SCPI Unit Commands ............................................................................. 8-24
Table 8-7 SCPI Range and Mode Commands ........................................................ 8-24
Table 8-8 SCPI Display Update Rate Command .................................................... 8-25
Table 8-9 SCPI Classifier (Limit) Commands.......................................................... 8-25
Table 8-10 SCPI Measurement Commands............................................................ 8-25
Table 8-11 SCPI Filter Commands.......................................................................... 8-25
Table 8-12 SCPI Zeroing Commands ..................................................................... 8-26
Table 8-13 SCPI Relative Offset Commands .......................................................... 8-26
Table 8-14 SCPI Analog Output Commands........................................................... 8-26
Table 8-15 SCPI Vector Summation Command...................................................... 8-26
Table 8-16 SCPI Hold Commands .......................................................................... 8-26
Table 8-17 Operating Ranges with Various Probes ................................................ 8-31
Table 9-1 Sample Data Log ...................................................................................... 9-1

F.W. BELL 8000 Series Gauss/Tesla Meter Instruction Manual
v
LIST OF ILLUSTRATIONS
Figure 1-1 Front Panel (8010 Model Shown) ............................................................1-6
Figure 1-2 Rear Panel (8010 Model Shown) .............................................................1-7
Figure 1-3 Various Positions of Meter .......................................................................1-8
Figure 2-1 Frequency Response of Uncorrected Analog Output............................... 2-3
Figure 2-2 Digital I/O Connector................................................................................ 2-4
Figure 2-3 YA-111 Zero Flux Chamber .....................................................................2-6
Figure 2-4 YA-112 Zero Flux Chamber .....................................................................2-6
Figure 3-1 8000 Series Probe Model Chart............................................................... 3-2
Figure 3-2 Hall Probe Configurations ........................................................................ 3-4
Figure 4-1 Probe Electrical Warning..........................................................................4-2
Figure 4-2 Fuse Replacement...................................................................................4-3
Figure 4-3 Adjusting the Handle and Feet................................................................. 4-4
Figure 4-4 Installing and Removing Probes ..............................................................4-5
Figure 4-5 Standby Button Location .......................................................................... 4-6
Figure 4-6 Boot Up Screen........................................................................................4-7
Figure 5-1 Front Panel Key Sets ............................................................................... 5-2
Figure 5-2 Main Menu Example ................................................................................ 0-3
Figure 5-3 Menu Selections Example........................................................................5-4
Figure 5-4 Special Menu Screens .............................................................................5-4
Figure 5-5 8000 Gaussmeter Menu Map................................................................... 5-5
Figure 6-1 Setting the Units.......................................................................................6-2
Figure 6-2 Flux Density Reading............................................................................... 6-3
Figure 6-3 Range Settings ........................................................................................ 6-3
Figure 6-4 Measurement Mode Selection .................................................................6-5
Figure 6-5 Frequency / Period Indicator ....................................................................6-5
Figure 6-6 Analog Filter Selection .............................................................................6-7
Figure 6-7 Auto Zero Menu Path ............................................................................. 6-10
Figure 6-8 Manual Zero Menu Path......................................................................... 6-11
Figure 6-9 Update Interval Setting...........................................................................6-12
Figure 6-10 Hold Features Settings.........................................................................6-14
Figure 6-11 Relative Value Indicator ....................................................................... 6-16
Figure 6-12 Relative Settings Menu Path................................................................ 6-17
Figure 6-13 8000 Series 3-Axis Probe Orientation.................................................. 6-18
Figure 6-14 Vector Sum Equation ........................................................................... 6-19
Figure 6-15 Vector Sum Relative Equation ............................................................. 6-19
Figure 6-16 Vector Sum Settings ............................................................................ 6-20
Figure 6-17 Analog Output Settings ........................................................................ 6-23
Figure 6-18 Example Circuit for Classifier Outputs.................................................. 6-24
Figure 6-19 Probe Output versus Flux Angle .......................................................... 6-25
Figure 6-20 Probe Output versus Distance ............................................................. 6-25
Figure 6-21 Flux Density Variations in a Magnet..................................................... 6-26
Figure 7-1 AC Waveform Display Layout ..................................................................7-1
Figure 7-2 Waveform Display Menu .......................................................................... 7-2
Figure 7-3 Trigger Setup Menu .................................................................................7-4

F.W. BELL 8000 Series Gauss/Tesla Meter Instruction Manual
vi
Figure 8-1 RS-232 Connector ...................................................................................8-3
Figure 8-2 RS-232 Setup Screen ..............................................................................8-3
Figure 8-3 Ethernet Connector Pin Out ..................................................................... 8-4
Figure 8-4 Network Configuration Screen .................................................................8-5
Figure 8-5 Windows TELENET Example .................................................................. 8-6
Figure 8-6 8030 Gaussmeter Web Application Screen ............................................. 8-7
Figure 8-7 IEEE-488 (GPIB) Connector .................................................................. 0-10
Figure 8-8 GPIB Configuration Screen.................................................................... 8-12
Figure 8-9 Condition, Event, and Enable Registers ................................................ 8-13
Figure 8-10 Status Byte and SRQ Enable Register................................................. 8-14
Figure 8-11 Standard Event Register ...................................................................... 8-16
Figure 8-12 Measurement Event Register............................................................... 8-16
Figure 8-13 Operation Event Register..................................................................... 8-17
Figure 8-14 Questionable Event Register ............................................................... 8-17
Figure 9-1 Data Logging Menu Path ......................................................................... 9-2
Figure 9-2 Example of Waveform Mode Screen Capture..........................................9-3
Figure 10-1 Firmware Update Screen .....................................................................10-1
Figure A-1 Flux Lines of a Permanent Magnet..........................................................A-1
Figure A-2 Hall Effect Sensor....................................................................................A-2
Figure B-1 Two Dimensional Coordinate System......................................................B-1
Figure B-2 Vector Angle in a Two Dimensional System ............................................B-2
Figure B-3 Three Dimensional Coordinate System ...................................................B-3
Figure B-4 Vector Angles in a Three Dimensional System........................................B-3

F.W. BELL 8000 Series Gauss/Tesla Meter Instruction Manual
Section 1 – Introduction 1-1
SECTION 1 Introduction
Overview The F.W. BELL 8000 Series Gauss/Tesla meters incorporate the latest
developments in magnetic flux density measurement technology with a
modern user interface. It features a large display for easy viewing, a
comprehensive keypad for control of common functions, and an easy-to-
use menu system. The 8010 model features a single channel while the
8030 model provides three input channels. Both models provide high
accuracy suitable for use in the laboratory and enough features to be
versatile in a manufacturing environment.
Table 1-1 on the following page provides a list of features. Detailed
descriptions of the 8000 Series Meter functions and features are
provided in the remaining sections.
Note: Some features shown in this manual may be under development or are
not supported with the supplied system firmware. Visit the FW Bell web site at
www.fwbell.com or contact customer support for the latest updates.

F.W. BELL 8000 Series Gauss/Tesla Meter Instruction Manual
Section 1 – Introduction 1-2
Table 1-1 8000 Series Gauss/Tesla Meter List of Features
Flux Density
Measurement Auto Range and Zeroing Capability
DC and AC Field Measurement up to 50 kHz
Automatic Calibration
Units in gauss (G), tesla (T), amp/meter (A/m), or Oersted (Oe)
Display and User
Interface Large TFT color LCD Display with backlighting
AC Waveform Graphical Display Mode
Common Functions are Activated Quickly Through the Front Panel Keypad
Other Functions are Accessible Through Graphical Menu System
10 User Configuration Setups May be Stored
Support
Functions Analog and Digital Filtering
Relative Feature Allows Small Fluctuations to be Observed Within a Larger Field
Hold Feature Includes Arithmetic Min/Max Readings Calculated by the Instrument and
Signal Peaks/Valleys of Rapid Changing Pulses
Field Classifier With Pass/Fail Outputs
Remote Operation
and
Communications
RS-232C Standard 9-pin female "D" connector
Protocol: SCPI-1999
Protocol: IEEE-488-1987.2 w/ External Prologix Adapter
Protocol: IEEE-802.3u Data Link Layer & TCP / IP Transport & Network Layer
Ethernet Standard RJ-45 Interface (10/100 MHz Ethernet Port)
Dual USB 2.0 Compliant Ports – Firmware Update via USB drive
Signal Outputs Corrected and Uncorrected Analog Outputs
+/- 3V and +/- 10V Selectable Ranges
Either Waveform or RMS Signals
Vector Summation Output (Model 8030 Only)
Spare Analog Output(s) (presently not supported)
Probe Styles Transverse, Axial and 3-Axis
Temperature Compensation Available
Low, Medium, and High Field Options
Standard and Heavy Duty
Software &
Data Logging On-Site Firmware Updates
HTML User Remote Interface with Data Logging
Automatic Data Logging on USB Drive or Internal Memory
Screen Capture Utility

F.W. BELL 8000 Series Gauss/Tesla Meter Instruction Manual
Section 1 – Introduction 1-3
General
Description
The Model 8000 Series Gauss/Tesla meters utilize Hall effect probes to
measure magnetic flux density in units of Gauss (G), Tesla (T), Amp/meter
(A/m), or Oersted (Oe). Either steady-state (DC) or alternating (AC) fields may
be measured. Fields as low as 10 µGauss (0.001 µT) or as high as 300k
Gauss (30 Tesla), at frequencies up to 50 kHz, can be measured with extreme
accuracy and 5-3/4 digit resolution. Each channel is calibrated and linearized
independently from data stored within the probes and meters. With a
temperature compensated Hall probe, the instrument can also compensate for
errors due to variations in probe temperature.
User Interface
The meters feature a WVGA, 600x480 pixel, TFT Color LCD Display with
backlighting. The display format may be customized by the operator and the
meter automatically adjusts text sizes for the most convenient view of the
information displayed.
Common functions are activated quickly through the front panel keypad, with
each channel having its own identical set of keys. In addition each key has a
back-light that is illuminated to indicate that it is active.
Less commonly used functions are easily accessible through the menu system.
Auto Range
Four measurement ranges may be selected manually or the instrument can
automatically select the best range based on the present flux density level being
measured.
Zero
The “zero” function allows the user to remove undesirable readings from nearby
magnetic fields (including earth’s) as well as to remove initial electrical offsets in
the probe and instrument. A “zero flux chamber” is included as an accessory
which shields the probe from external magnetic fields during this operation.
Hold
When the hold function is enabled the instrument will “hold” and display the
highest and/or lowest flux density readings that have been measured. Hold
features include capturing peaks and valleys of rapidly changing pulses as well
as arithmetically calculated max and min of slower changing signals.

F.W. BELL 8000 Series Gauss/Tesla Meter Instruction Manual
Section 1 – Introduction 1-4
General
Description
(Continued)
Relative
Another feature, called “relative mode”, allows large flux readings to be
suppressed so that small variations within the larger field can be observed
directly.
Update Interval
The update interval of the reading may be adjusted. Shorter update intervals
allow rapid fluctuations in flux density levels to be observed. Longer update
intervals provide higher resolution and stability in the flux density reading.
Analog Outputs
Each channel provides a Corrected and Uncorrected analog output voltage
signal available from standard BNC connectors. The uncorrected output signal
is representative of the magnetic flux density measured by the Hall probe. The
corrected output signal is compensated for influences of temperature and
frequency variations, as well as non-linearity inherent in the Hall probe and
instrument.
Both the Corrected and Uncorrected analog outputs offer the selection of either
raw waveform or RMS output data, and come with standard full scale output
ranges of 3V and 10V full scale. An adjustable full scale output up to 9.9V in
increments of 0.1V is also available (adjustable scale not supported).
Separate BNC outputs, not associated with the probe input channels, provide
analog outputs for the Vector Summation (8030 Only) and Auxiliary Analog
outputs (Auxiliary analog outputs not supported at this time).
These outputs may be connected to a voltmeter, oscilloscope, recorder, or
external analog-to-digital converter.
Analog Filters
Several analog filter modes are available in AC mode to help reject undesired
frequency content from AC field level signals. These filters affect both the
displayed reading and the analog outputs.
Field Classifiers
The “Classifier” function allows the user to define a lower and upper limit of flux
density that can be used to quickly determine the status of a magnetic field.
The instrument will indicate visually whether the field is below, within, or above
the pre-defined limits. The same information is provided in the form of general
purpose switch closures available at a standard 15 pin “D” type female
connector.

F.W. BELL 8000 Series Gauss/Tesla Meter Instruction Manual
Section 1 – Introduction 1-5
General
Description
(Continued)
Remote Operation
Remote operation is supported through either a standard 9-pin “D” RS232 serial
port connector or standard RJ-45 Ethernet connector (10/100 MHz Ethernet
Port). The 8000 meters can be remotely operated and flux density readings and
other information can be acquired by a remote computer or PLC. The
commands follow widely accepted protocols established by the SCPI-1999
standards.
In addition the 8000 Series Gaussmeters are supplied with an internal HTML
based remote monitoring and data logging application, that when connected to
a computer network can be accessed with standard web browser applications.
AC Waveform Display Mode
The graphical AC Waveform Display mode allows users to look at AC
measurements without the use of an external oscilloscope or other analog
graphing device. It provides operation and custom settings that will trigger on
user parameters and display the measurement on a familiar oscilloscope type
display.
Accessories
The instrument is shipped with a “zero flux chamber” used for shielding the
probe from unwanted fields during zeroing. In addition a sturdy carrying case is
provided for the zero flux chamber, probes, and other accessories or tools.

F.W. BELL 8000 Series Gauss/Tesla Meter Instruction Manual
Section 1 – Introduction 1-6
General
Description
(Continued)
Front Panel
The front panel consists of the TFT Color LCD display, Keypad, USB Ports,
and Probe Connector(s).
Table 1-2 Front Panel Description
(1) Display WVGA, 600 x 480 pixels, TFT Color LCD Display with Backlighting
(2) Standby Key Standby Power Indicator
(3) Menu Key Menu System Navigation
(4) Enter Key Menu System Navigation
(5) Range Key Selects Fixed Ranges or Auto Range
(6) Mode Key Selects ac or dc Field Measurement
(7) Reset Key Resets the Min/Max and Peak/Valley Detectors Used with the Hold Feature
(8) Zero Key Starts the Zeroing Process
(9) Relative Key Activates / De-activates the Relative Function
(10) Manual Key Numeric Entry / Menu Navigation
(11) Probe Connector 12 Pin Non-Magnetic Female Connector for Hall Effect Probes
(12) Hold Key Activates / Deactivates the Hold Feature
(13) USB Ports Dual USB 2.0 Compliant Ports
(14) Menu Hot Keys Menu Navigation and Function Selection
Figure 1-1 Front Panel (8010 Model Shown)

F.W. BELL 8000 Series Gauss/Tesla Meter Instruction Manual
Section 1 – Introduction 1-7
General
Description
(Continued)
Rear Panel
The rear panel consists of the Power Inlet / Fuse Holder, Analog Signal
Outputs, Communication Ports, and the Cooling Fan Vent.
Table 1-3 Rear Panel Description
(1) Corrected Analog
Output Compensated Analog Output Voltage Signal, Standard BNC Connector.
(2) Uncorrected Analog
Output Uncompensated Analog Output Voltage Signal, Standard BNC Connector.
(3) Fuse Chart Specifies the Proper Fuse Rating
(4) Ethernet Port Standard RJ-45 Connector (10/100 MHz Ethernet Port)
(5) Power Receptacle Accepts an International Instrumentation Power Line Cord
(6) Cooling Vent Vents for Cooling Fan (Should Remain Clear)
(7) RS-232 Port RS-232 Serial Communication Port. Standard 9 Pin “D” Type Female
Connector.
(8) Digital I/O Standard 15 Pin “D” Type Female Connector, Provides Switch Closure Points
for Classifier Operation
(9) Auxiliary Output Auxiliary Analog Voltage Output. Standard BNC Connector
Figure 1-2 Rear Panel (8010 Model Shown)

F.W. BELL 8000 Series Gauss/Tesla Meter Instruction Manual
Section 1 – Introduction 1-8
General
Description
(Continued)
Cabinet
The cabinet is equipped with a side handle and two feet underneath the
unit which serve to adjust the tilt angle of the instrument.
Figure 1-3 shows the instrument in various positions.
A rack mount option (part number 418001) is available for the 8000
Series Meters that allows the meter to be mounted in a 19” equipment
rack. Consult your FW Bell sales representative for more information.
Figure 1-3 Various Positions of Meter
Applications •Sorting or performing incoming inspection on permanent magnets,
particularly multi-pole magnets.
•Testing audio speaker magnet assemblies, electric motor armatures
and stators, transformer lamination stacks, cut toroidal cores, coils
and solenoids.
•Determining the location of stray fields around medical diagnostic
equipment.
•Determining sources of electromagnetic interference.
•Locating flaws in welded joints.
•Inspection of ferrous materials.
•3-dimensional field mapping.
•Inspection of magnetic recording heads.
•Designing new magnetic assemblies.

F.W. BELL 8000 Series Gauss/Tesla Meter Instruction Manual
Section 2 - Specifications 2-1
SECTION 2 Specifications
Meter Specifications
Full-scale ranges are shown in the Tables 2-1 through 2-3 below, listed by probe type. In all
cases, the display resolution is 1 part in 300,000.
Table 2-1 Ranges for Low Field Probes
gauss (G) tesla (T) oersted (Oe) ampere-turn/meter (A/m)
300.000 mG 30.0000
µ
T 300.000 mOe 23.8732 A/m
3.00000 G 300.000
µ
T 3.00000 Oe 238.732 A/m
Notes:
•Low Field MOX type probes have an upper calibrated range of
± 2G but will respond to flux
densities of
± 3G (300µT) with increased error.
•MOS type probes have a measurement limit of
± 1G (100µT) on a single range.
•Display resolution for MOS type probes is 10µG (1nT).
•Display resolution for MOX type probes is 1µG (0.1nT) but useful resolution is limited to 5-10µG
(1nT) due to noise & drift.
Table 2-2 Ranges for Mid Field Probes (1x type)
gauss (G) tesla (T) oersted (Oe) ampere-turn/meter (A/m)
30.0000 G 3.00000 mT 30.0000 Oe 2.38732 kA/m
300.000 G 30.0000 mT 300.000 Oe 23.8732 kA/m
3.00000 kG 300.000 mT 3.00000 kOe 238.732 kA/m
30.0000 kG 3.00000 T 30.0000 kOe 2.38732 MA/m
Table 2-3 Ranges for High Field Probes (10x type)
gauss (G) tesla (T) oersted (Oe) ampere-turn/meter (A/m)
300.000 G 30.0000 mT 300.000 Oe 23.8732 kA/m
3.00000 kG 300.000 mT 3.00000 kOe 238.732 kA/m
30.0000 kG 3.00000 T 30.0000 kOe 2.38732 MA/m
300.000 kG 30.0000 T 300.000 kOe 23.8732 MA/m