Nira Pro - Page 17

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Electromagnetic Immunity Declaration
NIRA Pro is intended for use in the electromagnetic environment specified below. The customer or the user 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


10 V/m
80 MHz to 2.5 GHz
3 V



10 V/m
Portable and mobile RF communications equipment should be used no closer to any part of NIRA
Pro including cables, than the recommended separation distance calculated from the equation
applicable to the frequency of the transmitter. Recommended separation distance
d = 1.17 150 kHz to 80 MHz
d = 1.17 80 MHz to 800 MHz
d = 2.33 800 MHz to 2.5 GHz
where P is the maximum output power rating of the transmitter in watts (W) according to the trans-
mitter manufacturer and d is the recommended separation distance in meters (m).Field strengths
from fixed RF transmitters, as determined by an electromagnetic site survey,
a
should be less than the
compliance level in each frequency range.
b

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.
a
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radio, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted
theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in
which NIRA Pro is used exceeds the applicable RF compliance level above, NIRA Pro should be observed to verify normal operation. If abnormal performance is observed, additional measures may be
necessary, such as reorienting or relocating NIRA Pro.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.