ENGLISH
44
Guidelines and manufacturer’s certificate concerning electromagnetic immunity
The blood pressure monitor is intended to be used in electromagnetic environments in accordance with
the specifications below. It is uncumbent on the customer or the person using the blood pressure monitor
to ensure that the electromagnetic environment in which it is used complies with these specifications.
Immunity test
Test level
as per IEC
60601
Compliance level
Guidelines for electromagnetic environment
Conducted radio
frequency
interference IEC
61000-4-6
3 V rms
150 kHz to
80 MHz
3 V
Portable and mobile radio communication
equipment must not used nearer to any part
of the blood pressure monitor or its leads
than the recommended minimum distance in
accordance with the equation applicable for
the transmitter in question.
Recommended minimum distance
d = 1.2
√
P
d= 1.2
√
P 80 MHz to 800 MHz
d= 2.3
√
P 800 MHz to 2.5 GHz
where P is the maximum output specified by
the transmitter manufacturer in watts (W)
and d is the recommended minimum
distance in metres (m).
The field strength from a permanent radio
transmitter, determined by electromagnetic
measurement in situ, should be less than
the specified compliance level for the
respective frequency rangeb.
Interference can occur in the vicinity of
equipment marked with the symbol:
Emitted radio
frequency
interference IEC
61000-4-3
3 V/m
80 MHz till
2.5 GHz
3 V/m
Note: 1: The higher frequency range is applicable at 80 MHz and 800 MHz.
Note: 2: These guidelines do not apply in all situations. Electromagnetic radiation can be affected by
absorption in and reflection against building structures and other objects, such as people.
a
The field strength from permanent transmitters, e.g. base stations for mobile phones and wireless
telephony, communication radios, amplitude or frequency modulated radio and television broadcasting
cannot be predicted theoretically with a practical degree of accuracy. In those cases where
electromagnetic environmental impact from permanent radio transmitters is important, measurement of
electromagnetic field strength in situ should therefore be taken into consideration. If the measured field
strength in the place where the blood pressure monitor is used exceeds the applicable, above specified
compliance levels for radio frequency radiation, the blood pressure monitor should be tested and checked
to verify that it is working properly. Additional measures may be necessary if incorrect or abnormal
functionality is observed, for example the realignment or repositioning of the blood pressure monitor.
b
In the frequency range 150 kHz to 80 MHz the field strength should be less than 3 V/m.
Jula reserves the right to make changes. In the event of problems, please contact our service
department.
www.jula.com
