21
Immunity test
IEC60601
Test level
Coincidentdet level
electromagnetic
environment——instruction
ESD
GB/T 17626.2
±6kV contact discharge
±8kV air discharge
±6kV contact
±8kV air
The ground should be wood, concrete
ortile. If it is covered with
synthetic
material, the relative humidity shall be at
least 30%.
EFT
GB/T 17626.4
±2Kv for power cord
±1kVfor
input/output
cable cord
±2kVfor power cord
Not applicable
Grid power should have the quality
typically used in a commercial or hospital
environment.
Surge
GB/T 17626.5
±1kV wire to wire
±2kV wire to ground
±1kV wire to wire
±2kV wire to ground
Grid power should have the quality
typically used in a commercial or hospital
environment.
Voltage sag, short
interruption and
voltage change
on power input line
GB/T 17626.11
< 5% UT
，
last for 0.5
cycle(on UT, > 95% sag)
40% UT
，
ast for 5 cycles
(on UT, 60% sag)
70% UT
，
last for 25
cycles, (on UT, 30%
sag)
< 5% UT
，
ast for 5s (on
UT, > 95% sag)
< 5% UT
，
last for 0.5
cycle(on UT, > 95%
sag)
40% UT
，
ast for 5
cycles (on UT,
60%
sag)
70% UT
，
last for 25
cycles, (on UT, 30%
sag)
< 5% UT
，
ast for 5s
(on UT, > 95% sag)
Grid power should have the quality
typically used in a commercial or hospital
environment. If the user need to use the
device when electricity is out, it is
recommanded to use UPS or batteries.
PFMF
（
50/60Hz
）
GB/T 17626.8
3 A/m
3 A/m
Power frequency magnetic fields should
have the quality of what the power
frequency
magnetic
fields
in
the
commercial or hospital would typically
have.
Note
：
Ut means theAC network voltage before apply the test voltage
Instruction and manufacturer statement
——
EMC
The device is intended to be used under the electromagnetic environment specified below. The buyer should make sure the
electromagnetic environment for using the machine should be kept as specified below.
Immunity test
Test level IEC 60601
Compliance level
Electromagnetic environment – guidance
