Abbott MER3700, User Manual

Page: 31 / 40

27
Table 5. Guidance and manufacturer's declaration - electromagnetic immunity (conducted RF
and radiated RF)
Test IEC 60601
Test Level
7
Immunity
Compliance Level Electromagnetic Environment -
Guidance
8
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 of the location in which the Merlin PSA is used
exceeds the applicable RF compliance level above, the Merlin PSA should be observed to verify
normal operation. If abnormal performance is observed, additional measures may be necessary,
such as re-orienting or relocating the Merlin PSA.
**Over the frequency range of 150 kHz to 80 MHz, field strengths should be less than [V
1
]V/m.
NOTE: The Merlin 2 PCS is intended for use in an electromagnetic environment in which radiated
RF disturbances are controlled. The user of the Merlin 2 PCS can help prevent electromagnetic
interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the Merlin 2 PCS as recommended in the table
below, according to the maximum output power of the communications equipment. For
transmitters rated at a maximum output power not listed in the table below, the recommended
separation distance (d) in meters 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.
Table 6. Recommended separation distances between portable and mobile communications
equipment and the Merlin™ 2 PCS
Rated maximum
output power of
transmitter (W)
Recommended separation distance according to frequency of
transmitter (m)
11
150 kHz to 80 MHz 80 MHz to 800
MHz
12
800 MHz to 2.7 GHz
0.01 0.12 0.12 0.23
0.1 0.38 0.38 0.73
1.0 1.2 1.2 2.3
10.0 3.8 3.8 7.3
100.0 12 12 23
RF Operating Frequencies
Nearby or hidden equipment emitting strong magnetic fields, such as Radio-Frequency
Identification (RFID) emitters, other medical and radio devices, etc., can interfere with the
Merlin™ 2 PCS inductive and RF communication, even if the other equipment complies with
applicable emission requirements. If interference occurs, you can minimize its effect by
reorienting or relocating the Merlin 2 PCS or by shielding its location.
11 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects, and people.
12 At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.