Philips Avalon FM20, Service Manual

Page: 248 / 260

12 Specifications
248
Field strengths from fixed transmitters, such as base stations, or 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 considered. If the measured field strength in the
Table 3 - Guidance and Manufacturer's Declaration: Electromagnetic Immunity
Conducted RF Immunity Test EN/IEC 61000-4-6
IEC 60601-1-2 Test Level
over 150 kHz to 80 MHz
Compliance Level
Electromagnetic Environment Guidance:
Recommended Separation Distance (
d
)
(in Meters, at Frequency Range Tested)
for Ultrasound and ECG Measurements
3.0 V
RMS
3.0 V
RMS
d = 1, 2 √ P
Key: d = Recommended separation distance in meters (m)
P = maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer
V1 = Tested compliance level (in Volts) for the Conducted RF Immunity test IEC 61000-4-6
The device meets the compliance level of 3.0 V
RMS
according to IEC 60601-1-2 over the specified test frequency
range. Over the frequency range 150 kHz—80 MHz, the recommended separation distance in meters (d) is found by
the following equation:
For a compliance level of 3.0 V
RMS
: d = 1, 2 √ P
Table 4 - Guidance and Manufacturer's Declaration: Electromagnetic Immunity
Radiated RF Immunity Test EN/IEC 61000-4-3
IEC 60601-1-2 Test Level
over 80 MHz to 2.5 GHz
Compliance Level
Electromagnetic Environment Guidance:
Recommended Separation Distance (
d
)
(in Meters, at Frequency Range Tested)
for Ultrasound and ECG Measurements
3.0 V/m 3.0 V/m Over 80 MHz—800 MHz:d = 1, 2 √ P
Over 800 MHz—2.5 GHz:d = 2, 3 √ P
Key: d = Recommended separation distance in meters (m)
P = maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer
E1 = Tested compliance level (in Volts/meter) for the Radiated RF Immunity test IEC 61000-4-3
The device meets the compliance level of 3.0 V
RMS
according to IEC 60601-1-2 over the specified test frequency
range.
Over the frequency range 80 MHz—800 MHz, the recommended separation distance in meters (d) is found by the
following equation:
For a compliance level of 3.0 V
RMS
: d = 1, 2 √ P
Over the frequency range 800 MHz—2.5 GHz, the recommended separation distance in meters ( d ) is found by the
following equation:
For a compliance level of 3.0 V
RMS
: d = 2, 3 √ P