Appendix A — Electromagnetic Compatibility
91518 Multigas Analyzer Service Manual
A-4
Interference
RF fields pulsating at a sustained rate within the physiological pass band of this equipment may be detected
and then displayed as a valid waveform, or the fields may alter a valid waveform and cause an erroneous
parameter value.
Mitigation
Evaluate on site. Troubleshoot with patient simulators and then determine the source of the interference.
Separate the sensitive receivers from the causes of the interference (refer to the following table).
Rated Maximum
Output Power of
Transmitter
(watts)
Separation Distance According to Frequency of Transmitter
(meters)
150 kHz to 80 MHz
80 MHz to 800 MHz
800 MHz to
2.5 GHz
0.01
0.02
0.02
0.04
0.1
0.06
0.06
0.1
1
0.2
0.2
0.4
10
0.6
0.6
1.1
100
1.8
1.8
3.5
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.
