Lowenstein Medical elisa 300, Instructions For Use Manual

Page: 377 / 457

Instructions for Use Supplement B – CO
2
Sensor LeoCap
|
Rev. 04
27
(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 broad-
cast and TV broadcast cannot be predicted theoretically with accuracy.
To assess the electromagnetic environment due to fixed RF transmitters, an electro -
magnetic site survey should be considered.
If the measured field strength in the location in which the device is used exceeds the
applicable RF compliance level above, the device should be observed to verify normal
operation.
If abnormal performance is observed, additional measures may be necessary, such as
re-orienting or relocating the device.
(b) Over the frequency range of 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 device
The device is intended for use in an electromagnetic environment in which radi-
ated RF disturbances are controlled. The customer or the user of the 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.
Rated maximum
output power of
transmitter, W
Separation distance according to frequency of transmit-
ter, m
150 kHz to 80 MHz
d = 1.2√P
80 MHz to 800 MHz
d = 1.2√P
800 MHz to 2.5
GHz
d = 2.7√P
0.01 0.12
0.12 0.23
0.1 0.37
0.37 0.74
1 1.20
1.20 2.30
10 3.80 3.80 7.30
100 12.00 12.00 23.00
For transmitters rated at a maximum output power not listed above, the recommend-
ed separation distance D in metres (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.