NorthEast Monitoring, Inc. NEMM019-Rev-O
Page 31 of 35
DR200/HE & DR300 Operator’s Manual
Appendices: Appendix D: EMC Information
Guidance and manufacturer’s declaration – electromagnetic immunity
The Northeast Monitoring DR200/HE and DR300 Digital Recorders are intended for use in the
electromagnetic environment specified below. The customer or user of the recorder should ensure that
it is used in such an environment.
Immunity test
IEC 60601 test level
Compliance level
Electromagnetic
environment – guidance
Electrostatic discharge
(ESD) IEC 61000-4-2
± 6kV contact
± 8kV air
± 6kV contact
± 8kV air
Floors should be wood,
concrete or ceramic tile.
If floors are covered with
synthetic material, the
relative humidity should be
at least 30%.
Electrical fast
transient/burst
IEC 61000-4-4
± 2 kV for power
supply lines
± 1 kV for input/
output lines
Not applicable.
No cables exceed 3
meters
Mains power quality should
be that of a typical
commercial or hospital
environment.
Surge
IEC 61000-4-5
± 1 kV line(s) to
line(s)
± 2 kV line(s) to earth
Not applicable.
Northeast Monitoring
DR200/HE and
DR300 Digital
Recorders are battery
powered.
N/A
Voltage dips, short
interruptions and
voltage variations on
power supply input
lines
IEC 61000-4-11
< 5%
U
T
(>95% dip in
U
T
)
For 0,5 cycle
40%
U
T
(60% dip in
U
T
)
For 5 cycles
70%
U
T
(30% dip in
U
T
)
for 25 cycles
< 5%
U
T
(>95% dip in
U
T
)
for 5 s
Not applicable.
Northeast Monitoring
DR200/HE and
DR300 Digital
Recorders are battery
powered.
N/A
Power frequency (50/
60 Hz) magnetic field
IEC 61000-4-8
3 A/m
3 A/m
Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical
commercial or hospital
environment.
NOTE
U
T
is the a.c. mains voltage prior to application of the test level.