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Guidance and manufacturer’s declaration –electromagnetic immunity
If the measured field strength in the location in which the ProBP™ 2000 Digital Blood Pressure Device is used exceeds the
applicable RF compliance level above, the ProBP™ 2000 Digital Blood Pressure Device should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating
the ProBP™ 2000 Digital Blood Pressure Device.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Recommended separation distances between portable and mobile RF communications equipment
and the ProBP™ 2000 Digital Blood Pressure Device
The ProBP™ 2000 Digital Blood Pressure Device is intended for use in the electromagnetic environment in which radiated
RF disturbances are controlled. The customer or the user of the ProBP™ 2000 Digital Blood Pressure Device can help
prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications
equipment (transmitters) and the device as recommended below, according to the maximum output power of the
communications equipment.
Separation distance according to frequency of transmitter (m)
Rated max. output
power of
transmitter (W)
150 kHz to 80 MHz
d= 3.5
80 MHz to 800 MHz
d= 1.2
800 MHz to 2.7 GHz
d= 2.3
0.01 0.12 0.12 0.23
0.1 0.37 0.38 0.73
1 1.2 1.2 2.3
10 3.8 3.8 7.3
100 12 12 23
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m)
can be estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power
rating of the transmitter in watts (W) according to the transmitter manufacturer.
Note 1: At 80 MHz and 800 MHz, the separation distance for 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.
Guidance and manufacturer’s declaration –electromagnetic immunity
The ProBP™ 2000 Digital Blood Pressure Device is intended for use in the electromagnetic environment specified below. The
customer or the user of the ProBP™ 2000 Digital Blood Pressure Device should assure that it is used in such an environment.
Radiated RF
IEC61000-4-3 (Test
specifications for
ENCLOSURE PORT
IMMUNITY to RF
wireless
communications
equipment)
Test
Frequency
(MHz)
Band a
(Mhz)
Service a) Modulation
b)
Modulation
b)
(W)
Distance
(m)
IMMUNITY
TEST LEVEL
(V/m)
385 380-390 TETRA 400 Pulse
modulation b)
18Hz
1.8 0.3 27
34 EMC guidance and manufacturer’s declarations Welch Allyn ProBP™ 2000 Digital Blood Pressure Device
38


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