User manual
UserManual:1528L
SW200095RevA,Page8of39
Guidance and manufacture’s declaration – electromagnetic immunity 
The 1528L is intended for use in the electromagnetic environment specified below. The customer or the user of the 
1528L should assure that it is used in such an environment. 
Immunity Test  IEC60601 test level  Compliance 
level 
Electromagnetic environment – guidance 
Conducted RF 
IEC61000-4-6 
Radiated RF 
IEC61000-4-3 
3 Vrms 
150 kHz to 80 MHz 
10 Vrms 
80 MHz to 2.5 GHz 
3 V 
3 V/m 
Portable and mobile RF communications equipment 
should be used no closer to any part of the 
[EQUIPMENT or SYSTEM], including cables, than the 
recommended separation distance calculated from the 
equation applicable to the frequency of the transmitter. 
Recommended separation distance 
 __ 
d = 1,2 √P 
 __ 
d = 1,2 √P 80 MHz to 800 MHz 
 __ 
d = 2,3 √P 800 MHz to 2,5 GHz 
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).
b
Field strengths from fixed RF transmitters, as 
determined by an electromagnetic site survey,
c
 should 
be less than the compliance level in each frequency 
range.
d
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. 
a
  The ISM (industrial, scientific, and medical) bands between 150 kHz and 80 MHz are 6,765 MHz to 6,795 MHz; 
13,553 MHz to 13,567 MHz; 26,957 MHz to 27,283 MHz; and 40,66 MHz to 40,70 MHz. 
b
  The compliance levels in the ISM frequency bands between 150 kHz and 80 MHz and the frequency range 80 
MHz to 2,5 GHz are intended to decrease the likelihood that mobile/portable communications equipment could 
cause interference if it is inadvertently brought into patient areas. For this reason, an additional factor of 10/3 is 
used in calculating the recommended separation distance for transmitters in these frequency ranges. 
c
  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 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 1528L is used exceeds the applicable RF 
compliance level above, the 1528L should be observed to verify normal operation. If abnormal performance is 
observed, additional measures may be necessary, such as reorienting or relocating the [EQUIPMENT or 
SYSTEM]. 
d
  Over the frequency range 150 kHz to 80 MHz, field strengths should be less than [V1] V/m. 










