EFA-200/-300 3 Preparation for use
3-9
Example: The connection to the Basic Unit can be disconnected while the
E field unit makes measurements and stores the results as a stand alone
unit. You can then use the EFA-300 Basic Unit to measure magnetic fields
independently of the E-Field Unit.
‘
Using the E-Field Unit
• The E-Field Unit has excellent isotropic characteristics. It does not need
to be aligned precisely.
• The E-Field Unit, Basic Unit, tripod and fiber optic cable must be
completely dry when the measurement is made.
• Any objects within the electric field and also the floor can distort the field.
The following conditions must be met when the measurement is made:
– The E-Field Unit is mounted on a tripod and insulated from it.
– The tripod and mounting rod have been extended as far as possible.
– No persons are in the immediate vicinity of the sensor.
– No objects, including the Basic Unit, are in the immediate vicinity of
the sensor.
EFA-300 Basic Unit
E-Field Unit
Operation x
Measurement x
Functions x
Data memory x
Table 3-1 Functions of measurement setup elements for E-field measurements
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