EFA-200/-300 1 Introduction
1-3
In this measurement setup, the Basic Unit is only used to operate the
E-Field Unit. The E-Field Unit performs all measurement functions and also
stores the results independently of the Basic Unit. This unusual solution
makes it possible to start a long-term measurement with the E-Field Unit
and then to disconnect the Basic Unit and the fiber optic cable and make
magnetic field measurements using the Basic Unit without the E-Field Unit.
1.2 About this operating manual
The two device types EFA-200 and EFA-300 differ in their measurement
objectives (magnetic flux density or electric field strength). However,
operation of the devices is to a large extent identical since the basic
functions of the EFA-300 and EFA-200 are the same.
This is why it is possible to include both devices in a single operating
manual and consider the two side by side. Important differences in handling
and specifications are covered in the chapters “Preparation for use”,
“Control and display elements” and “Specifications”.
Major differences are found, however, in chapters 5 to 9, which consider the
operation of the devices.
In these chapters, indications that apply to both units refer to the common
name of EFA.
Functions or restrictions that apply to only one of the instruments are
preceded by an appropriate note, e.g. For EFA-200 only.
Restrictions in function are also preceded by appropriate notes. For
example, some of the types of data set cannot be saved as individual values
in the memory. The section “Saving individual values” is therefore prefixed
with the note: For data set types Normal, List, Vector only.
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