D-14
Guidance and Manufacturer’s Declaration – Electromagnetic Immunity
The HealthGuard-15 is intended for use in the electromagnetic environment specified below. The customer or the user
of the HealthGuard-15 should assure that it is used in such an environment.
Immunity Test
IEC 60601 Test
Level
Compliance
Level
Electromagnetic Environment – Guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150 kHz to 80
MHz
3 V/m
80 MHz to 2.5
GHz
3 Vrms
3 V/m
Portable and mobile RF communications equipment
should be used no closer to any part of the HealthGuard-
15, including cables, than the recommended separation
distance calculated from the equation applicable to the
frequency of the transmitter.
Recommended Separation Distance:
d = 1.2
√
P
d = 1.2
√
P 80 MHz to 800 MHz
d = 2.3
√
P 800 MHz to 2.5 GHz
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 meters.
Field strengths from fixed RF transmitters, as determined
by an electromagnetic site survey
a
should be less than the
compliance level in each frequency range.
b
Interference may occur in the vicinity of equipment
marked with the following symbol:
NOTE 1 At 80 MHz to 800 MHz, 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.
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
considered. If the measured field strength in the location in which the HealthGuard-15 is used exceeds the applicable
RF compliance level above, the HealthGuard-15 should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as re-orienting or relocating the HealthGuard-
15.
b
Over the frequency range of 150kHz to 80MHz, field strengths should be less than 3 V/m.
Summary of Contents for HealthGuard-15
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