Table of Contents
Advertisement
Guidance and manufacturer's declaration ‐ electromagnetic immunity
The GEMS‐H is intended for use in the electromagnetic environment specified below. The customer or the user of the GEMS‐H should
assure that it is used in such an environment.
Immunity test
Conducted RF
3 Vrms
IEC61000‐4‐6
150 kHz to 80 MHz
Outside ISM bands
6 Vrms
150 kHz to 80 MHz in ISM
bands
Radiated RF
3 V/m
IEC61000‐4‐3
80 MHz to 2.7 GHz
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 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 GEMS‐H is used exceeds the applicable RF compliance level above, the GEMS‐H should
be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or
relocating the GEMS‐H.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
c 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.
SAIT‐IFU‐GEMS‐H Rev.1.1 (2019‐11)
IEC 60601
Compliance level
test level
3 Vrms
c
c
6 Vrms
3 V/m
Electromagnetic environment‐ guidance
Portable and mobile RF communications equipment
should be used no closer to any part of the GEMS‐H,
including cable. Then the recommended separation
distance calculated from the equation appliance to the
frequency of the transmitter.
Recommended separation distance
d=1.2 ��
IEC 60601‐1‐2:2014
d=2.0 �� 80 MHz to 2.7 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).
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site survey,
be less than the compliance level in each frequency
b
range.
Interference may occur in the vicinity of equipment
marked with following symbol:
a
should
Page 74 of 79
Advertisement
Table of Contents
