54
Humphrey Matrix Visual Field Instrument
Rev. D 08/21/06 PN 701692
Guidance and manufacturer’s declaration - electromagnetic immunity
The Humphrey Matrix is intended for use in the electromagnetic environment specified below. The
customer or the user of the Humphrey Matrix should assure that is used in such an environment.
Immunity test
IEC 60601 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/out-
put lines
±2 kV for power
supply lines
±1 kV for input/out-
put 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.
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 sec
<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 sec
Mains power quality should be that of a
typical commercial or hospital
environment. If the user of the
Humphrey Matrix requires continued
operation during power mains
interruptions, it is recommended that
the Humphrey Matrix be powered from
an interruptible source.
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.
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