Service manual

Brentwood Medical Technology Corp. IQmark Digital Spirometer
Addendum – EMC Requirements Instructions for Use
Addendum to 3-100-1025 Revision 8.0
Page 4 of 4
Table 3 – Guidance and manufacturer’s declaration – electromagnetic immunity – for the
IQmark Digital Spirometer
Guidance and manufacturer’s declaration – electromagnetic immunity
The IQmark Digital Spirometer is intended for use in the electromagnetic environment specified below. The
customer or the user of the IQmark Digital Spirometer should assure that it is used in such an environment.
Immunity test IEC 60601 test
level
Compliance
level
Electromagnetic environment – guidance
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 IQmark
Digital Spirometer, including cables, than the
recommended separation distance calculated from the
equation applicable to the frequency of the transmitter.
Recommended separation distance
d = 1.2 √ P
d = 1.2 √ P 80 MHz to 800 MHz
d = 1.2 √ 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 meters (m).
Field strengths from the 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:
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.
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 electromagnetic site
survey should be considered. If the measured field strength in the location in which the IQmark Digital Spirometer
is used exceeds the applicable RF Compliance level above, the IQmark Digital Spirometer should be observed to
verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as re-
orientating or relocating the IQmark Digital Spirometer.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Next
Back
Go To Table Of Contents