Philips Avalon CTS M2720A, Service Manual

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10 Specifications Essential Performance
94
Recommended Separation Distances from Portable and Mobile RF
Communication Equipment
The device is intended for use in an electromagnetic environment in which radiated RF disturbances are
controlled. The customer or user of the device can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications equipment and the
device as recommended below, according to the maximum output power of the communications
equipment.
Essential Performance
The following tables list the essential performance for Avalon Fetal Monitors, also in combination with
the Avalon Cordless Fetal Transducer System. The essential performance is maintained under the
electromagnetic conditions specified in chapter “Specifications and Standards Compliance”, Section
“Electromagnetic Compatibility”. The essential performance is specified separately for non-transient and
for transient electromagnetic interference.
Essential Performance for Non-Transient EMC Phenomena:
• Radiated electromagnetic fields
• Conducted disturbances induced by RF fields
• Conducted disturbances induced by magnetic fields
• Voltage dips/voltage variations
Rated
Maximum
Output Power
( P )
of Transmitter
(in Watts)
Separation Distance ( d ) in Meters According to Frequency of Transmitter at IEC 60601-1-2 Test
Compliance Level
(Figures in brackets show worst-case separation distances where tested values fall below the compliance level at
certain frequencies. See previous table.)
150 kHz to 80 MHz 80 MHz to 800 MHz 800 MHz to 2.5 GHz
0.01 0.1 (3.5) 0.1 (0.3) 0.23 (7.0)
0.1 0.4 (11.1) 0.4 (1.0) 0.7 (22.1)
1 1.2 (35.0) 1.2 (3.2) 2.3 (70.0)
10 3.8 (110.0) 3.8 (10.1) 7.3 (221.4)
100 12.0 (350.0) 12.0 (32.0) 23.0 (700.0)
d
3 5

V 1
---------
 
 
P = d
3 5

E 1
---------
 
 
P = d
7 0

E 1
---------
 
 
P =
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