Table 12-4 Electromagnetic Immunity - Not Life Supporting - Northern Digital Polaris Vicra User Manual

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Immunity Test
IEC 60601 Test Level Compliance Level
Conducted RF
3 Vrms
150 kHZ to 80 MHz
IEC 61000-4-6
Radiated RF
3 V/m
IEC 61000-4-3
80 MHz to 2.5 GHz
Note
U t is the AC mains voltage prior to the application of the test level.
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 accurately predicted. To assess the electromagnetic environment due to fixed RF
transmitters, an electromagnetic site survey should be considered. If the measured field strength in
the location where the Polaris Vicra System is used exceeds the applicable RF compliance level
above, observe the system to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as re-orienting or relocating the Polaris Vicra System.
Polaris Vicra User Guide - Revision 2

Table 12-4 Electromagnetic Immunity - Not Life Supporting

3 V
3 V/m
Electromagnetic Compatibility
Electromagnetic Environment - Guidance
Portable and mobile RF communications
equipment should be used no closer to any
part of the Polaris Vicra System, including
cables, than the recommended separation
distance calculated from the equation
applicable to the frequency of the transmitter.
Recommended separation distance:
 P
3.5
------ -
d
=
3
See
Table 12-5 on page 68
 P
3.5
80 MHz to 800 MHz
------ -
d
=
3
  P
7
800 MHz to 2.5 GHz
-- -
d
=
 
3
where 'P' is the maximum output power
rating of the transmitter in watts (W)
according to the transmitter manufacturer and
'd' is the recommended separation distance in
metres.
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site
a
survey
, should be less than the compliance
level in each frequency range
may occur in the vicinity of equipment
marked with the following symbol:
See
Table 12-5 on page
68.
b
. Interference
67

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