Instructions for use: Ikus - Berlin Heart

Recommended protection distances
EMC tables
14.4 Recommended protection distances between wearable and
mobile HF telecommunications devices and the Ikus
Rated power of
the transmitter
W
The EXCOR stationary Driving Unit Ikus system is intended for operation in an electromagnetic
environment in which the HF disturbance variables are controlled. The customer
or user of the EXCOR stationary Driving Unit Ikus system can help to prevent
electromagnetic disturbances by observing the minimum distance between wearable
and mobile HF telecommunications devices (transmitters) and the EXCOR stationary
Driving Unit Ikus system - depending on the power output of the communication device
as indicated below.
Protection distance depending on the transmission frequency (m)
150 kHz to 80 MHz
outside of the ISM bands
150 kHz to 80 MHz
within the ISM bands
800 MHz to 2.5 GHz 800 MHz to 2.5 GHz
d = 0,
35 P d = 1,
2 P d = 1,
2 P d =
2,
3 P
0.01 0.04 0.12 0.12 0.23
0.1 0.11 0.38 0.38 0.73
1 0.35 1.20 1.20 2.30
10 1.11 3.79 3.79 7.27
100 3.50 12.00 12.00 23.00
For transmitters the maximum rated power of which is not indicated in the above table,
the distance can be determined using the equation in the respective column, where P is
the maximum rated power of the transmitter in watts (W) according to the information
of the transmitter manufacturer.
NOTE 1: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2: The ISM frequency bands (for industrial, scientific and medical applications)
between 150 kHz and 80 Hz 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 Hz to 40,70MHz.
NOTE 3: The compliance levels in the ISM frequency bands between 150 kHz and
80 MHz and in the frequency range of 80 MHz to 2.5 GHz are set in order to reduce the
probability of mobile/wearable communication devices causing interference if they are
inadvertently brought into the vicinity of the patient. For this reason, the additional factor
of 10/3 is applied when calculating the recommended protection distances in these frequency
ranges.
NOTE 4: These guidelines may not be applicable to all cases. The propagation of electromagnetic
variables is influenced by absorption and reflections from the building, objects
and people.
104 1000002 Rev. 4.9.1