ADLINK MLC 4-21 - Manual (Page 37)

MLC 4-xx Technical Manual Rev. 1.2 Appendix
Document: Manual_Medical_MLC_1.2 Page 37 of 37 pages Last change date: 18-Feb-15
[a] = Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios, amateur 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 consid-
ered. If the measured field strength in the location in which the device is used exceeds the applicable RF compliance level above, the device should be observed to verify normal oper-
ation. If abnormal performance is observed, additional measures may be necessary, such as re-orienting or relocating the device.
[b] = Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3V/m.
13.1.4. Recommended separation distances between portable and mobile RF communications equipment and the MLC 4-xx
(IEC 60601-1-2:2007 Table 6)
The device is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user of the device can help pre-
vent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the device as rec-
ommended below, according to the maximum output power of the communications equipment.
Rated maximum output power of trans-
mitter [W] Separation distance according to frequency of transmitter [m]
150kHz to 80MHz
𝑑 = 1.2 × √𝑃
80MHz to 800MHz
𝑑 = 1.2 × √𝑃
800MHz to 2.5GHz
𝑑 = 2.3 × √𝑃
0.01 0.12 0.12 0.23
0.1 0.37 0.37 0.74
1 1.17 1.17 2.33
10 3.69 3.69 7.38
100 11.67 11.67 23.33
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 fre-
quency 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.