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MR850 Technical Manual * Revision J * Issued November 2005 * Ref. 185041340 (185041713 internal)
58
13 EMC INFORMATION
WARNING:
The use of accessories other than those specified by Fisher & Paykel Healthcare may
result in increased emissions or decreased immunity of the equipment or system.
Guidance and manufacturer’s declaration – electromagnetic emissions
The MR850 is intended for use in the electromagnetic environment specified below. The customer or the user of the MR850 should
assure that it is used in such an environment.
Emissions test Compliance Electromagnetic environment - guidance
RF emissions CISPR 11 Group 1 The MR850 uses RF energy only for its internal function.
Therefore, its RF emissions are very low and are not likely to
cause any interference in nearby electronic equipment.
RF emissions CISPR 11 Class B
Harmonic emissions
IEC 61000-3-2
Class B
Voltage fluctuations/ flicker emissions
IEC 61000-3-3
Complies
The MR850 is suitable for use in all establishments, including
domestic establishments and those directly connected to the
public low-voltage power supply network that supplies buildings
used for domestic purposes.
Guidance and manufacturer’s declaration – electromagnetic emissions
The MR850 is intended for use in the electromagnetic environment specified below. The customer or the user of the MR850 should
assure that it is used in such an environment.
Emissions test IEC 60601-1 test level Compliance level Electromagnetic environment - guidance
Electrostatic discharge
(ESD)
IEC 61000-4-2
± 6 kV contact
± 8 kV air
± 6 kV contact
± 8 kV 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
± 2 kV for power supply
lines
± 1 kV for input/output lines
Mains power quality should be that of a
typical commercial or hospital environment.
Surge
IEC 61000-4-5
± 1 kV differential mode
± 2 kV common mode
± 1 kV differential mode
± 2 kV common mode
Mains power quality should be that of a
typical commercial or hospital environment.
Surge
IEC 61000-4-5
± 1 kV differential mode
± 2 kV common mode
± 1 kV differential mode
± 2 kV common mode
Mains power quality should be that of a
typical commercial or hospital environment.
Voltage dips, short
interruptions and voltage
variations on power supply
input lines
IEC 61000-4-11
< 5 % U
T (> 95 % dip in UT)
for 0,5 cycle
40 % U
T (60 % dip in UT)
for 5 cycles
70 % U
T (30 % dip in UT)
for 25 cycles
< 5 % U
T (> 95 % dip in UT)
for 5 sec
< 5 % U
T (> 95 % dip in UT)
for 0,5 cycle
40 % U
T (60 % dip in UT)
for 5 cycles
70 % U
T (30 % dip in UT)
for 25 cycles
< 5 % U
T (> 95 % dip in UT)
for 5 sec
Mains power quality should be that of a
typical commercial or hospital environment.
If the user of the MR850 requires continued
operation during power mains interruptions,
it is recommended that the MR850 be
powered from an uninterruptible power
supply or a battery.
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 UT is the a.c. mains voltage prior to application of the test level.