36
Technical Information
Table 9: Guidance and Manufacturer’s Declaration— Electromagnetic Immunity
Immunity Test
IEC 60601
Test Level
Compliance
Level
Electromagnetic Environment—Guidance
This device is intended for use in the electromagnetic environment specified below. The user of this device
should ensure that it is used in such an environment.
Portable and mobile RF communications equipment should be used no closer to any part of the device,
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 V
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to 2.5 GHz
3 V/m
Radiated RF per
ISO 9919 clause 36
and ISO 80601-2-61
clause 202.6.2.3
20 V/m
80 MHz to 2.7 GHz
20 V/m
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 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:
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 device is used exceeds the applicable RF
compliance level above, the device should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as reorienting or relocating the device.
b. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
NOTES:
• At 80 MHz and 800 MHz, the higher frequency range applies.
• These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects, and people.
d
1.17 P
=
d
1.17 P
=
d
2.33 P
=
