eResearchTechnology GmbH AM3G01 Manuale Utente

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Peak Flow Meter AM3 - Instructions for Use for Trial xxx

Version 00.03 • Date 04NOV2013

General Safety Precautions 

The AM3 GSM is intended for use in the electromagnetic environment specified below. The customer or the 

user of the AM3 GSM should ensure that it is used in such an environment.

Immunity test

IEC 60601 test level

Compliance 

level

Electromagnetic environment - guidance

Portable and mobile RF communications 

equipment should be used no closer to any 

part of the AM3 GSM, including cables, 

that the recommended separation distance 

calculated from the equation applicable to 

the frequency of the transmitter:

Recommended protection distance:

Conducted RF

IEC 61000-4-6

3 Vrms

150 kHz to 80 MHz

3 Vrms

d = 1.17 1/V * √P

Radiated RF

IEC 61000-4-3

3 V/m

80 MHz to 2,5 GHz

3 V/m

d = 1.17 m/V * √P  for 80 MHz to 800 MHz

d = 2,33 m/V * √P  for 800 MHz to 2.5 GHz

where P is the maximum output power 

rating of the transmitter in watts (W) acc. 

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 compli-

ance level in each frequency range.

b

 

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 situations. Electromagnetic propagation is affected by 

absorption and reflections 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 broadcast and TV broadcast cannot be predicted 

theroretically 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 

AM3 GSM is used exceeds the applicable RF compliance level above, the AM3 GSM should be observed to 

verify normal operation. If abnormal performance is observed, additional measures may be necessary, such 

as reorienting or relocating the AM3 GSM.

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