User's Manual

5
Guidance and Manufacturers Declaration – Electromagnetic Immunity
The CareLink USB is intended for use in the electromagnetic environment specified below. The customer or user of the CareLink USB should make sure that it is used in such an environment.
Immunity Test IEC 60601 Level Compliance Level Electromagnetic Environment Guidance
Conducted RF
IEC
61000-4-6
Radiated RF
IEC 61000-4-3
3V rms
150 kHz to
80 MHz
3V/m
80 MHz to 6 GHz
3 V emf
3 V/m
Portable and mobile RF communications equipment should be used no
closer to any part of the CareLink USB than the recommended separation
distance calculated from the equation applicable to the frequency of the
transmitter.
Recommended separation distance
80 MHz-800 MHz
800 MHz-6 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 (m). 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:
L
NOTE: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE: 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 broadcasts
and TV broadcast cannot be predicted theoretically with accuracy. To access 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 CareLink USB is used exceeds the applicable RF compliance level above, the CareLink
USB should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as re-orienting or relocating the
CareLink USB or the transmitting device from which it is receiving signals.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
d 1.2 P=
d 1.2 P=
d 2.3 P=