Welch Allyn Connex Integrated Wall System - User Manual - Manual (Page 127)

Electromagnetic immunity
The monitor is intended for use in the electromagnetic environment specified below. The customer or the
user of the monitor should assure that it is used in such an environment.
Immunity test IEC 60601 test
level
Compliance
level
Electromagnetic environment - guidance
Portable and mobile RF communications
equipment should be used no closer to any part
of the monitor, including cables, than the
recommended separation distance calculated
from the equation applicable to the frequency of
the transmitter.
Recommended separation distance
Conducted RF
IEC 61000-4-6 3 Vrms
150 kHz to 80 MHz 3 Vrms
d= (1.17)
Radiated RF
IEC 61000-4-3 3 V/m 80 MHz to 1
GHz
3 V/m
d= (1.17) 80 to 800 MHz
d= (2.33) 800 MHz to 2,5 GHz
whereP is the maximum output power rating of
the transmitter in watts (W) andd 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:
Note1: 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 radios, 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 the
monitor is used exceeds the applicable RF compliance level above, the monitor should be observed to verify
normal operation. If abnormal performance is observed, additional measures may be necessary, such as
reorienting or relocating the monitor.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Directions for use Guidance and manufacturer's declaration 121