Welch Allyn CP 200 12-Lead Resting Electrocardiograph - User Manual - Manual (Page 104)

100 Appendix B EMC Guidance and Manufacturer’s Declarations Welch Allyn CP 200 Electrocardiograph
Table 8. Recommended Separation Distances Between Portable and Mobile RF Communications Equipment
and the CP 200 Electrocardiograph
The CP 200 electrocardiograph is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The
customer or user of the CP 200 electrocardiograph can help prevent electromagnetic interference by maintaining a minimum distance between
portable and mobile RF communications equipment (transmitters) and the CP 200 electrocardiograph as recommended below, according to the
maximum output power of the communications equipment.
Separation Distance According to Frequency of Transmitter (m)
Rated Max. Output
Power of Transmitter
(W)
150 kHz to 80 MHz
d = (1.17)
80 MHz to 800 MHz
d = (1.17)
800 MHz to 2.5 GHz
d = (2.33)
0.01 0.117 0.117 0.233
0.1 0.37 0.37 0.74
1 1.17 1.17 2.33
10 3.70 3.70 7.37
100 11.70 11.70 23.30
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.
P P P