19
Oxygen
Analyzer
• At 80 MHz and 800 MHz, the higher frequency range applies.
• These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection
from structures, objects, and people.
• UT is the a.c. main voltage prior to application of the test level.
a
: Field strength 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 concentrator is used exceeds the applicable RF compliance level
above, the concentrator should be observed to verify normal operation. If abnormal performance is observed, additional
measures may be necessary, such as re-orienting or relocating the PM5950 Acc O2 Analyzer.
b
: Over the frequency range 150 kHz to 80 MHz, the field strengths should be less than 3V/m.
Recommended Separation Distances between Portable and Mobile RF Communications
Equipment and This Device:
This concentrator is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The
user of the concentrator can help prevent electromagnetic interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and this concentrator as recommended below, according to the maximum
output power of the communications equipment.
Rated Maximum
Power Output of
Transmitter (W)
Recommended Separation Distances for the device (meters)
150 kHz to 80 MHz
d=1.2√P
80 to 800MHz
d=1.2√P
800 MHz to 2.5 GHz
d=2.3√P
0.01
0.12
0.12
0.23
0.1
0.38
0.38
0.73
1
1.2
1.2
2.3
10
3.8
3.8
7.3
100
12
12
23
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (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.
• At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
• The guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection
from structures, objects, and people.
Guidance and Manufacturer’s Declaration – Electromagnetic Emissions
The PM5950 Acc O2 Analyzer is intended for use in the electromagnetic environment specified below. The user of the
concentrator should assure that it is used in such an environment.
Emissions Test
Compliance
Electromagnetic Environment - Guidance
RF emissions
CISPR 11
Group 1
The PM5950 Acc O2 Analyzer uses RF energy only for its internal
function. Therefore its RF emissions are very low and not likely to
cause any interference in nearby equipment.
RF emissions
CISPR 11
Class B
The PM5950 Acc O2 Analyzer is suitable for use in all establishments,
including domestic establishments and those directly connected to the
public low-voltage power supply network that supplies buildings used
for domestic purposes.
Harmonic Emissions
IEC 61000-3-2
Class A
Voltage fluctuations /
flicker emissions IEC
61000-3-3
Complies
