B-4 Patient Data Module 2030047-001A
Appendix B– Electromagnetic Compatibility
Recommended separation distances
The following table provides the recommended separation distances (in meters)
between portable and mobile RF communications equipment and the Patient Data
Module.
The Patient Data Module is intended for use in the electromagnetic environment on
which radiated RF disturbances are controlled. The customer or the user of the Patient
Data Module can help prevent electromagnetic interference by maintaining a
minimum distance between portable and mobile RF communications equipment
Immunity Test EN 60601 Test Level Compliance Level Electromagnetic Environment – Guidance
Portable and mobile RF communications equipment should not
be used closer to any part of the equipment, including cables,
than the recommended separation distance calculated from the
equation applicable to the frequency of the transmitter.
Recommended separation distance
Conducted RF
EN 61000-4-6
Radiated RF
EN 61000-4-3
3 Vrms
150 KHz to 80 MHz
3 V/m
80 MHz to 2.5 GHz
3 V rms
3 V/m
d = 1.2
d = 1.2 80 MHz to 800 MHz
d = 2.3 800 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).
Field strengths from fixed RF transmitters, as determined by an
electromagnetic site surveys, should be less than the compliance
level in each frequency range.
Interference may occur in the vicinity of equipment marked with
the following 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 reflection from structures, objects, and
people.
a
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile 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 equipment is
used exceeds the applicable RF compliance level above, the equipment should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as re-orienting or relocating the equipment.
b
Over the frequency range 150 KHz to 80 MHz, field strengths should be less than 3 V/m.