Operator’s Manual of Anesthesia System E - 5
Electromagnetic Compatibility
NOTE: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE: These guidelines may not apply in all situations. Electromagnetic
propagation is affected by absorption and reflection from
structures, objects and people.
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. The amateur radio bands between 0.15 MHz and 80 MHz are 1.8 MHz to 2.0 MHz, 3.5 MHz
to 4.0 MHz, 5.3 MHz to 5.4 MHz, 7 MHz to 7.3 MHz, 10.1 MHz to 10.15 MHz, 14 MHz to 14.2 MHz,
18.07 MHz to 18.17 MHz, 21.0 MHz to 21.4 MHz, 24.89 MHz to 24.99 MHz, 28.0 MHz to 29.7 MHz
and 50.0 MHz to 54.0 MHz.
b. Compliance level in the ISM frequency bands between 150 kHz to 80 MHz and in the frequency
range 80 MHz to 2.7 GHz are intended to decrease the likelihood that portable/mobile
communication 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.
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 A8 anesthesia system is used exceeds the
applicable RF compliance level above, A8 anesthesia system should be observed to verify
normal operation. If abnormal performance is observed, additional measures may be necessary,
such as reorienting or relocating A8 anesthesia system .
d. Over the frequency ranges 150 kHz to 80 MHz, field strengths should be less than 3V/m.
BAND (MHZ) SERVICE
IMMUNITY TEST
LEVEL (V/M)
380 - 390 TETRA 400 27
430 - 470 GMRS 460, FRS 460 28
704 - 787 LTE Band 13, 17 9
800 - 960 GSM 800/900, TETRA 800, iDEN 820, CDMA 850, LTE Band 5 28
1,700 - 1,990 GSM 1800; CDMA 1900; GSM 1900; DECT; LTE Band 1, 3, 4, 25;
UMTS
28
2,400 - 2,570 Bluetooth, WLAN, 802.11 b/g/n, RFID 2450, LTE Band 7 28
5,100 - 5,800 WLAN 802.11 a/n 9
TABLE E-4Frequencies of portable and mobile transmitters for which the recommended separation distance
is 30 cm (12 inches)
GUIDANCE AND DECLARATION - ELECTROMAGNETIC IMMUNITY
A8 anesthesia system is suitable for use in the electromagnetic environment specified below. The
customer or the user of A8 anesthesia system should assure that it is used in such an environment as
described below.
IMMUNITY
TEST
IEC 60601 TEST
LEVEL
COMPLIANCE
LEVEL
ELECTROMAGNETIC ENVIRONMENT -
GUIDANCE
TABLE E-3(Continued) Guidance and declaration - electromagnetic immunity
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