Comen CM1200B - Page 68

EMC
V-4
Table 4
Recommended separation distances between
portable and mobile RF communications equipment and CM1200B Electrocardiograph
CM1200B Electrocardiograph is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of CM1200B Electrocardiograph can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and CM1200B Electrocardiograph, as recommended below,
according to the maximum output power of the communications equipment.
Rated maximum output
power of transmitter
W
Separation distance according to frequency of transmitter
m
0.15 MHz to 80 MHz
Pd 2.1
80 MHz to 800 MHz
Pd 2.1
800 MHz to 2.7 GHz
Pd 3.2
0.01
0.12
0.12
0.23
0.1
0.38
0.38
0.73
1
1.2
1.2
2.3
10
3.8
3.8
7.3
100
12
12
23
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 separation distance for 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.
Table 5
declaration - IMMUNITY to proximity fields from RF wireless communications equipment
CM1200B Electrocardiograph is intended for use in an electromagnetic environment in which RF wireless
communications equipment are controlled.
Immunity
test
IEC60601 test level
Compliance
level
Electromagnetic
environment -
guidance
Test
frequency
Modulation
Maximum
power
Immunity
level
Radiated
RF
IEC
61000-4-3
385 MHz
**Pulse
Modulation:
18Hz
1.8W
27 V/m
27 V/m
450 MHz
*FM+ 5Hz
deviation:
1kHz sine
2 W
28 V/m
28 V/m
710 MHz
745 MHz
780 MHz
**Pulse
Modulation:
217Hz
0.2 W
9 V/m
9 V/m
810 MHz
870 MHz
930 MHz
**Pulse
Modulation:
18Hz
2 W
28 V/m
28 V/m