Welch Allyn 5002 Mode D'emploi page 36

32 Appendices
Note: U is the a.c. mains voltage prior to application of the test level.
T
The Welch Allyn Masted Scale is intended for use in the electromagnetic environment specified below. The customer or
the user of the Welch Allyn Masted 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
430 MHz to 470 MHz 430 MHz to 470 MHz
Welch Allyn Masted Scales
Electromagnetic environment - guidance
Portable and mobile RF communications
equipment should be used no closer to any part
of the Welch Allyn Masted 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: