About This Manual; Symbols Glossary; Safe Use; Introduction - Bartington Grad-13 Series Operation Manual

1. About this Manual

This document describes the installation, operation and maintenance of the Grad-13 digital
three axis fluxgate gradiometer from Bartington Instruments. It should be read in conjunction
with the product brochure
Instruments website at www.bartington.com. Outline drawings are also available on this page.
Note that failure to follow the instructions in this manual may invalidate your product's warranty.
If in doubt, do not hesitate to contact Bartington Instruments.
Bartington Instruments cannot advise on the integration of this equipment with any third party
products.

1.1. Symbols Glossary

The following symbols used within this manual call your attention to specific types of
information:
WARNING: Indicates a situation in which serious bodily injury or death could result if the
warning is ignored.
Caution: Indicates a situation in which bodily injury or damage to your instrument, or both,
could result if the caution is ignored.
Identifies items that must be disposed of safely to prevent unnecessary damage to the
environment.
Note: Provides useful supporting information on how to make better use of your purchase.

2. Safe Use

WARNING: These products are not qualified for use in explosive atmospheres or life
support systems. Consult Bartington Instruments for advice.

3. Introduction

The Grad-13 is a three axis digital fluxgate gradiometer available in two versions, the Grad-13-L
for land operation and the Grad-13-S that is submersible to 200 metres.
This unit is comprised of two three axis fluxgate magnetometers, one at either end of a
mechanically stable beam. Each cluster of fluxgates is arranged such that the centres of the
three magnetic axes coincide at a common point. The vector magnetic field experienced by each
of the 3 magnetic axes is converted to an RS422 digital output.
DCN1040
BARTINGTON INSTRUMENTS
DS3100, which can be found on the
Page 4 of 39
product page on the Bartington
OM3100/2