Tyco 1928L Manuel d'utilisateur télécharger pdf (Page 11)

Guidance and manufacturer’s declaration-electromagnetic immunity

The ET1928L is intended for use in the electromagnetic environment specified below. The user of the ET1928L

should assure that it is used in such an environment.

Immunity test IEC 60601 test level Compliance Electromagnetic environment-guidelines

level

Portable and mobile RF communications equipment

should be used no closer to any part of theET1928L,

including cables, than the recommended separation

distance calculated from the equation applicable to

the frequency of the transmitter.

Recommended separation distance

Conducted RF 3 Vrms 3 Vrms d=1.2 P

Radiated RF 3 V/m 3 Vrms d=1.2 P 80MHz to 800 MHz

IEC 61000-4-3 80 MHz to 2.5 GHz

d=2.3 P 800 NHz to 2.5GHz

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)

Filed 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:

NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.

NOTE 2 These guidelines may not apply in all situation. Electromagnetic propagation is affected by absorption and

reflection from structures, objects and people.

Filed 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 filed strength in the location in which the ET1928L is used exceeds the

applicable RF compliance level above, the ET1928L should be observed to verify normal operation. If abnormal

performance is observed, additional measures may be necessary, such as reorienting or relocating the ET1928L.

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

Guidance and manufacturer’s declaration-electromagnetic immunity-

for all EQUIPMENT AND SYSTEMS that are not LIFE-SUPPORTING

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Tyco 1928L Manuel d'utilisateur Page 11