Guidance and manufacturer’s declaration – Posey Bed 8070 User Manual

Page 25

Posey Bed - 8070

Table 204

Guidance and manufacturer’s declaration – electromagnetic immunity

The Posey Bed 8070 is intended for use in the electromagnetic environment specified below. The

customer or the user of the Posey Bed 8070 should assure that it is used in such an environment.

Immunity Test

IEC 60601

Compliance Level

Electromagnetic Environment –

Test Level

Guidance

NOTE 1 At 80 MHz and 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.

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 Posey Bed 8070 is used

exceeds the applicable RF compliance level above, the Posey Bed 8070 should be observed to verify normal

operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or

relocating the Posey Bed 8070.

Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.

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

Posey Bed 8070, including cables,

than the recommended separation

distance calculated from the equation

applicable to the frequency of the

transmitter.
Recommended separation distance

d = [3.5/V1]√P

d = [3.5/E1]√P 80 MHz to 800 MHz

d = [7/E1]√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

metres (m).
Field strengths from fixed RF

transmitters, as determined by an

electromagnetic site survey

, should

be less than the compliance level in

each frequency range.

Interference may occur in the vicinity

of equipment marked with the

following symbol:

Guidance and Manufacturer’s Declaration