Nihon Kohden Corporation ZM-531PA 사용자 설명서

Operator’s Manual  ZM-520PA/521PA/530PA/531PA

 97

- guidance

Conducted RF 
IEC 61000-4-6

Radiated RF
IEC 61000-4-3

3 Vrms
150 kHz to 80 MHz

3 V/m 
80 MHz to 2.5 GHz

3 Vrms

3 V/m 80 MHz to 
2.5 GHz

(1 V/m 80 MHz 
to 2.5 GHz for 
respiration)

Portable and mobile RF communications 
equipment should be used no closer 
to any part of the ZM-520PA/530PA, 
including cables, than the recommended 
separation distance calculated from the 
equation applicable to the frequency of 
the transmitter. 

d = 1.2 P 

d = 1.2 P  80 MHz to 800 MHz
d = 2.3 P  800 MHz to 2.5 GHz

(d = 3.5 P  80 MHz to 800 MHz for 
respiration
d = 7.0 P  800 MHz to 2.5 GHz for 
respiration)

where P is the maximum output power 
rating of the transmitter in watts (W) 
according to the transmitter manufacturer 
and d is the recommended separation 
distance in meters (m).

Field strengths from fixed RF transmitters, 
as deter mined by an electromagnetic 
site survey*

1

, should be less than the 

compliance level in each frequency 
range*

2

.

Interference may occur in the vicinity of 
equipment marked with the following 
symbol:

NOTE 1:  At 80 MHz and 800 MHz, 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. 

*

1

  Field strengths 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 ZM-520PA/530PA is used exceeds the applicable RF compliance level above, the ZM-520PA/530PA 
should be observed to verify normal operation. If abnormal performance is observed, additional 
measures may be necessary, such as re-orienting or relocating the ZM-520PA/530PA.

*

2

  Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 1 V/m for respiration 

and 3 V/m for all other functions.

૞ᚑ 㒙ጊޓᖘᏆ

ᛚ⹺ ⌀ᨩޓ⌬