User's Manual
98 Operator’s Manual ZM-520PA/521PA/530PA/531PA
Recommended Separation Distances between Portable and Mobile RF
Communications Equipment
The ZM-520PA/530PA is intended for use in an electromagnetic environment in which radiated
RF disturbances are controlled. The customer or the user of the ZM-520PA/530PA can help
prevent electromagnetic interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the ZM-520PA/530PA 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 transmitter (m)
150 kHz to 80 MHz
d = 1.2
P
80 MHz to 800 MHz
d = 1.2
P
(For respiration:
d = 3.5
P)
800 MHz to 2.5 GHz
d = 2.3
P
(For respiration:
d = 7.0
P)
0.01 0.12 0.12 (0.35*) 0.23 (0.7*)
0.1 0.38 0.38 (1.1*) 0.73 (2.2*)
1 1.2 1.2 (3.5*) 2.3 (7.0*)
10 3.8 3.8 (11*) 7.3 (22*)
100 12 12 (35*) 23 (70*)
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.
(* For respiration)
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.
Recovery Time after Defibrillation
The transmitter returns to the normal operating mode within 10 seconds after defibrillation. The
stored settings are not affected.
System Composition for EMC Test
The ZM-520PA/530PA bedside monitor is tested to comply with IEC 60601-1-2: 2001 with the
following composition.
Units Cable Length
ZM-520PA/530PA transmitter —
BR-906P ECG electrode lead 0.8 m
TL-201T finger probe 1.6 m
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