natus Nicolet EEGwireless32, User Manual, Page: 116 / 138

Nicolet Systems
10-10
April 27, 2015
Guidance and Manufacturer’s Declaration – Electromagnetic Immunity
The Nicolet EEGwireless32/64 amplifier is intended for use in the electromagnetic environment specified below. The
customer or the user of the Nicolet EEGwireless32/64 amplifier should assure that it is used in such an environment.
Immunity test
IEC 60601 test
level
Compliance
level Electromagnetic environment – guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms 150 kHz
to 80 MHz
3 V/m 80 MHz
to 2.5 GHz
3V
3 V/m
Portable and mobile RF communications equipment should be
used no closer to any part of the Nicolet EEGwireless32/64
amplifier, including cables, than the recommended separation
distance calculated from the equation applicable to the
frequency of the transmitter.
Recommended separation distance
d
= 1.17
d
= 1.17 80 MHz to 800 MHz
d
= 2.23 800 MHz to 2.5 GHz
where
P
is the maximum output power rating of the transmitter
in watts (W) according to the transmitter manufacturer and d is
the recommended separation distance in meters (m)
Field Strengthens from fixed RF transmitters, as determined by
an electromagnetic site survey, (a* on the next page) should be
less than the compliance level in each frequency range. (b* on
the next page)
Interference may occur in the vicinity of equipment marked
with the following symbol:
Note 1: At 80 MHz and 800 MHz, the higher frequency range applies.
Note 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people.