Smiths Medical level 1 Operator's Manual page 31

Guidance and Manufacturer's Declaration – Radiofrequency Electromagnetic Immunity
Immunity test IEC 60601
test level
Conducted RF
IEC 61000-4-6
3 Vrms
150 kHz to 80 MHz
6 Vrms ISM bands
150 kHz to 80 MHz
Radiated RF 3 V/m
IEC 61000-4-3 80 MHz to 2.7 GHz
Radiated RF
Per 60601-1-2:2014
Proximity
section 8.10
Fields
Table 9.
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
reflected from structures, objects and people.
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile
a
radios, amateur radio, AM and FM radio 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 system is used exceeds the applicable RF compliance level above,
the system should be observed to verify normal operation. If abnormal performance is observed, additional measures
may be necessary, such as re-orienting or relocating the system.
Over the frequency range 150 KHz to 80 MHz, field strengths should be less than 3 V/m.
b
Compliance level
3 Vrms
150 kHz to 80 MHz
6 Vrms
150 kHz to 80 MHz
10 V/m
80 MHz to 2.7 GHz
Per 60601-1-2:2014
section 8.10
Table 9.
Level 1®
CONVECTIVE WARMER
S E C T I O N 8
Electromagnetic environment - guidance
Portable and mobile RF communications equipment
should be used no closer to any part of the system,
including cables, than the recommended separation
distance calculated from the equation applicable to the
frequency of the transmitter.
Recommended separation distance:
d = [1.2]√P
d = [0.58]√P
d = [0.35]√P 80 MHz to 800 MHz
d = [0.7]√P 800 MHz to 2.5 GHz
d = [6/E]√P
*E is the immunity test level in 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 strength from fixed RF transmitters, as determined
by an electromagnetic site survey,
the compliance level in each frequency range.
Interference may occur in the vicinity of
equipment marked with the following
symbol:
| Operator's Manual
• S p e c i f i c a t i o n s
should be less than
a
b
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