2 Safety instructions
8 NBM-520 Narda
2.1 Using this operating manual
! Carefully read this entire operating manual before you
start using the instrument.
! Keep this operating manual so that it is available to
everyone who uses the instrument, and ensure that this
operating manual is with the instrument if you pass it on to
a third party.
2.2 Proper use
The NBM-520 is designed to measure and evaluate electro-
magnetic fields.
! Only use the instrument for the purpose and under the
conditions for which it has been designed.
! In particular, observe the technical data given in the
“Specifications” on page 51.
Proper use also includes:
! observing any national accident prevention regulations at
the place of use,
! ensuring that the instrument is used only by appropriately
qualified and trained persons.
2.3 Improper use
The NBM-520 is not a warning device that gives active
notice of the existence of dangerous fields by means of a
visible or audible warning signal.
! Remember that this instrument is a measuring device, not
a warning device.
! Carefully observe the actual measurement displayed
when you are approaching an unknown field source.
! If in doubt, use an additional warning device such as
“RadMan” or “Nardalert XT”, available from Narda Safety
Test Solutions.
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