System Manual

10 Electromagnetic Compatibility (EMC) DIN EN 60601-1-2
ers2 – 1-Channel ECG Telemetry System 55
201000401000 / Rev 04
Recommended separation distances between portable and mobile RF communications equipment
and the ergoline 1-channel transmitter
The ECG system is intended for use in an electromagnetic environment, as specified below, in which radiated RF distur-
bances are controlled. The customer or the user of the ECG system can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the
ECG system as recommended below, according to the maximum output power of the communications equipment.
Rated maximum output
power of the 1-channel
transmitter [W]
Separation distance according to frequency of transmitter in meters [m]
150 kHz to 80 MHz
d = 1.2 √P
80 MHz to 800 MHz
d = 1.2 √P
800 MHz to 2.5 GHz
d = 2.3 √P
0.01 0.12
0.1 0.37
11.17
10 3.7
100 11.7
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be
estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the
transmitter in watts (W) according to the transmitter manufacturer.
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 reflection from
structures, objects, and people.