Ramsey Medical statMAP Instructions Manual - Electromagnetic Immunity
Page 11
Electromagnetic Immunity
The statMAP is intended for use in the electromagnetic
environment specified below. The customer or user of the
statMAP should assure that it is used in such an environment
.
Immunity test
IEC60601
test level
Compliance
Level
Electromagnetic environment - guidance
Portable and mobile RF communications
equipment should be used no closer to any
part of the device, including cables, than
the recommended separation distance
calculated from the equation applicable to
the frequency of the transmitter.
Recommended separation distance
Conducted RF
IEC 61000-4-6
3 Vrms
150kHz to
80 MHz
3 Vrms
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to
2.5 GHz
3 V/m
d =(1.17) 80 - 800MHz
d =(2.33) 800Mhz - 2.5GHz
Note 1: At 80 MHz and 800 MHz,
the higher frequency range applies.
Note 2: These quidelines may not
apply in all situations. Electromag-
netic propagation is affected by
absorption and reflection from
structures, objects, and people.
where P is the maximum output power
rating of the transmitter in watts (W) and
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:
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 electromag-
netic site survey should be considered. If the measured field strength in the location
in which the device is used exceeds the applicable RF compliance level above, the
device should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as reorienting or relocating
the device.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than
3 V/m.
d =(1.17)