14
Welch Allyn AED 10 Trainer
Guidance and manufacturer’s declaration:
Electromagnetic immunity (IEC 60601-1-2 Table 203)
The Welch Allyn AED 10 Trainer is intended for use in the electromagnetic environment
specified below. The customer or the user of the Welch Allyn AED 10 Trainer 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 Welch Allyn
AED 10 Trainer, 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 V
rms
150 kHz to 80 MHz outside ISM bands
a
a.
The ISM (industrial, scientific and medical) bands between 150 KHz and 80 MHz are 6.765 MHz to 6.795 MHz; 13.553 MHz
to 13.567 MHz; 26.957 MHz to 27.283 MHz; and 40.66 MHz to 40.70 MHz.
3 V
rms
d
= 1.17 *
P
10 V
rms
150 kHz to 80 MHz in ISM bands
10 V
rms
d
= 1.20 *
P
Radiated RF
IEC 61000-4-3
10 V/m
80 MHz to 2.5 GHz
10 V/m
d
= 1.20 *
P
80 MHz to 800 MHz
d
= 2.30 *
P
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).
b
b.
The compliance levels in the ISM frequency bands between 150 kHz and 80 MHz and in the frequency range 80 MHz to
2.5 GHz are intended to decrease the likelihood that mobile/portable communications equipment could cause interference
if it is inadvertently brought into patient areas. For this reason, an additional factor of 10/3 is used in calculating the
recommended separation distance for transmitters in these frequency ranges.
Field strengths from fixed RF transmitters, as determined by an electromagnetic site survey,
c
should be less
than the compliance level in each frequency range.
d
c.
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 Welch Allyn AED 10 Trainer is used exceeds the applicable RF
compliance level above, the Welch Allyn AED 10 Trainer should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as reorienting or relocating the Welch Allyn AED
10 Trainer.
d.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3V/m.
Interference may occur in the vicinity of equipment marked with the 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.
