Welch Allyn Scale-Tronix 4802D Mode D'emploi page 31

Directions for use
Note: U is the a.c. mains voltage prior to application of the test level.
T
The Welch Allyn Pediatric/Infant Scale is intended for use in the electromagnetic environment specified below. The
customer or the user of the Welch Allyn Pediatric/Infant Scale should assure that it is used in such an environment.
Immunity test
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
Table-9 of IEC60601-1-2, 4th Ed.
Electromagnetic immunity
Electromagnetic immunity
IEC 60601 test level Compliance level
3 Vrms 3 V
150 kHz to 80 MHz
6Vrms 6V
ISM Band frequency
(MHz) : 6.675 – 6.795,
13.553 – 13.567,
26.957 – 27.284 &
40.66 – 40.70
3 V/m 3 V/m
80 MHz to 2.7 GHz
27 V/m 27 V/m
380 MHz to 390 MHz 380 MHz to 390 MHz
28 V/m 28 V/m
Appendices 27
Electromagnetic environment - guidance
Portable and mobile RF communications
equipment should be used no closer to any part
of the Welch Allyn Pediatric/Infant Scale,
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 to 800 MHz
d= (2.33) 800 MHz to 2.7 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 strengths from fixed RF transmitters,
as determined by an electromagnetic site
a
survey , should be less than the compliance
b
level in each frequency range . Interference
may occur in the vicinity of equipment marked
with the following symbol: